Instruction:
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## 内容1
### 文件路径：
src/main/java/org/apache/bcel/classfile/ConstantPool.java
### 代码内容：
/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 */
package org.apache.bcel.classfile;

import java.io.DataInput;
import java.io.DataOutputStream;
import java.io.IOException;

import org.apache.bcel.Const;

/**
 * This class represents the constant pool, i.e., a table of constants, of a parsed classfile. It may contain null
 * references, due to the JVM specification that skips an entry after an 8-byte constant (double, long) entry. Those
 * interested in generating constant pools programmatically should see
 * ConstantPoolGen.
 *
 * @see Constant
 * @see org.apache.bcel.generic.ConstantPoolGen
 */
public class ConstantPool implements Cloneable, Node {

    private static String escape(final String str) {
        final int len = str.length();
        final StringBuilder buf = new StringBuilder(len + 5);
        final char[] ch = str.toCharArray();
        for (int i = 0; i < len; i++) {
            switch (ch[i]) {
            case '\n':
                buf.append("\\n");
                break;
            case '\r':
                buf.append("\\r");
                break;
            case '\t':
                buf.append("\\t");
                break;
            case '\b':
                buf.append("\\b");
                break;
            case '"':
                buf.append("\\\"");
                break;
            default:
                buf.append(ch[i]);
            }
        }
        return buf.toString();
    }

    private Constant[] constantPool;

    /**
     * @param constantPool Array of constants
     */
    public ConstantPool(final Constant[] constantPool) {
        this.constantPool = constantPool;
    }

    /**
     * Reads constants from given input stream.
     *
     * @param input Input stream
     * @throws IOException if problem in readUnsignedShort or readConstant
     */
    public ConstantPool(final DataInput input) throws IOException {
        byte tag;
        final int constant_pool_count = input.readUnsignedShort();
        constantPool = new Constant[constant_pool_count];
        /*
         * constantPool[0] is unused by the compiler and may be used freely by the implementation.
         */
        for (int i = 1; i < constant_pool_count; i++) {
            constantPool[i] = Constant.readConstant(input);
            /*
             * Quote from the JVM specification: "All eight byte constants take up two spots in the constant pool. If this is the
             * n'th byte in the constant pool, then the next item will be numbered n+2"
             *
             * Thus we have to increment the index counter.
             */
            tag = constantPool[i].getTag();
            if (tag == Const.CONSTANT_Double || tag == Const.CONSTANT_Long) {
                i++;
            }
        }
    }

    /**
     * Called by objects that are traversing the nodes of the tree implicitely defined by the contents of a Java class.
     * I.e., the hierarchy of methods, fields, attributes, etc. spawns a tree of objects.
     *
     * @param v Visitor object
     */
    @Override
    public void accept(final Visitor v) {
        v.visitConstantPool(this);
    }

    /**
     * Resolves constant to a string representation.
     *
     * @param c Constant to be printed
     * @return String representation
     * @throws IllegalArgumentException if c is unknown constant type
     */
    public String constantToString(Constant c) throws IllegalArgumentException {
        String str;
        int i;
        final byte tag = c.getTag();
        switch (tag) {
        case Const.CONSTANT_Class:
            i = ((ConstantClass) c).getNameIndex();
            c = getConstant(i, Const.CONSTANT_Utf8);
            str = Utility.compactClassName(((ConstantUtf8) c).getBytes(), false);
            break;
        case Const.CONSTANT_String:
            i = ((ConstantString) c).getStringIndex();
            c = getConstant(i, Const.CONSTANT_Utf8);
            str = "\"" + escape(((ConstantUtf8) c).getBytes()) + "\"";
            break;
        case Const.CONSTANT_Utf8:
            str = ((ConstantUtf8) c).getBytes();
            break;
        case Const.CONSTANT_Double:
            str = String.valueOf(((ConstantDouble) c).getBytes());
            break;
        case Const.CONSTANT_Float:
            str = String.valueOf(((ConstantFloat) c).getBytes());
            break;
        case Const.CONSTANT_Long:
            str = String.valueOf(((ConstantLong) c).getBytes());
            break;
        case Const.CONSTANT_Integer:
            str = String.valueOf(((ConstantInteger) c).getBytes());
            break;
        case Const.CONSTANT_NameAndType:
            str = constantToString(((ConstantNameAndType) c).getNameIndex(), Const.CONSTANT_Utf8) + " "
                + constantToString(((ConstantNameAndType) c).getSignatureIndex(), Const.CONSTANT_Utf8);
            break;
        case Const.CONSTANT_InterfaceMethodref:
        case Const.CONSTANT_Methodref:
        case Const.CONSTANT_Fieldref:
            str = constantToString(((ConstantCP) c).getClassIndex(), Const.CONSTANT_Class) + "."
                + constantToString(((ConstantCP) c).getNameAndTypeIndex(), Const.CONSTANT_NameAndType);
            break;
        case Const.CONSTANT_MethodHandle:
            // Note that the ReferenceIndex may point to a Fieldref, Methodref or
            // InterfaceMethodref - so we need to peek ahead to get the actual type.
            final ConstantMethodHandle cmh = (ConstantMethodHandle) c;
            str = Const.getMethodHandleName(cmh.getReferenceKind()) + " "
                + constantToString(cmh.getReferenceIndex(), getConstant(cmh.getReferenceIndex()).getTag());
            break;
        case Const.CONSTANT_MethodType:
            final ConstantMethodType cmt = (ConstantMethodType) c;
            str = constantToString(cmt.getDescriptorIndex(), Const.CONSTANT_Utf8);
            break;
        case Const.CONSTANT_InvokeDynamic:
            final ConstantInvokeDynamic cid = (ConstantInvokeDynamic) c;
            str = cid.getBootstrapMethodAttrIndex() + ":" + constantToString(cid.getNameAndTypeIndex(), Const.CONSTANT_NameAndType);
            break;
        case Const.CONSTANT_Dynamic:
            final ConstantDynamic cd = (ConstantDynamic) c;
            str = cd.getBootstrapMethodAttrIndex() + ":" + constantToString(cd.getNameAndTypeIndex(), Const.CONSTANT_NameAndType);
            break;
        case Const.CONSTANT_Module:
            i = ((ConstantModule) c).getNameIndex();
            c = getConstant(i, Const.CONSTANT_Utf8);
            str = Utility.compactClassName(((ConstantUtf8) c).getBytes(), false);
            break;
        case Const.CONSTANT_Package:
            i = ((ConstantPackage) c).getNameIndex();
            c = getConstant(i, Const.CONSTANT_Utf8);
            str = Utility.compactClassName(((ConstantUtf8) c).getBytes(), false);
            break;
        default: // Never reached
            throw new IllegalArgumentException("Unknown constant type " + tag);
        }
        return str;
    }

    /**
     * Retrieves constant at `index' from constant pool and resolve it to a string representation.
     *
     * @param index of constant in constant pool
     * @param tag expected type
     * @return String representation
     */
    public String constantToString(final int index, final byte tag) {
        final Constant c = getConstant(index, tag);
        return constantToString(c);
    }

    /**
     * @return deep copy of this constant pool
     */
    public ConstantPool copy() {
        ConstantPool c = null;
        try {
            c = (ConstantPool) clone();
            c.constantPool = new Constant[constantPool.length];
            for (int i = 1; i < constantPool.length; i++) {
                if (constantPool[i] != null) {
                    c.constantPool[i] = constantPool[i].copy();
                }
            }
        } catch (final CloneNotSupportedException e) {
            // TODO should this throw?
        }
        return c;
    }

    /**
     * Dump constant pool to file stream in binary format.
     *
     * @param file Output file stream
     * @throws IOException if problem in writeShort or dump
     */
    public void dump(final DataOutputStream file) throws IOException {
        file.writeShort(constantPool.length);
        for (int i = 1; i < constantPool.length; i++) {
            if (constantPool[i] != null) {
                constantPool[i].dump(file);
            }
        }
    }

    /**
     * Gets constant from constant pool.
     *
     * @param index Index in constant pool
     * @return Constant value
     * @see Constant
     * @throws ClassFormatException if index is invalid
     */
    public Constant getConstant(final int index) throws ClassFormatException {
        if (index >= constantPool.length || index < 0) {
            throw new ClassFormatException("Invalid constant pool reference: " + index + ". Constant pool size is: " + constantPool.length);
        }
        final Constant ret = constantPool[index];
        if (ret == null) {
            throw new ClassFormatException("Constant pool at index " + index + " is null.");
        }
        return ret;
    }

    /**
     * Gets constant from constant pool and check whether it has the expected type.
     *
     * @param index Index in constant pool
     * @param tag Tag of expected constant, i.e., its type
     * @return Constant value
     * @see Constant
     * @throws ClassFormatException if constant type does not match tag
     */
    public Constant getConstant(final int index, final byte tag) throws ClassFormatException {
        final Constant c = getConstant(index);
        if (c.getTag() != tag) {
            throw new ClassFormatException("Expected class `" + Const.getConstantName(tag) + "' at index " + index + " and got " + c);
        }
        return c;
    }

    /**
     * @return Array of constants.
     * @see Constant
     */
    public Constant[] getConstantPool() {
        return constantPool;
    }

    /**
     * Gets string from constant pool and bypass the indirection of `ConstantClass' and `ConstantString' objects. I.e. these
     * classes have an index field that points to another entry of the constant pool of type `ConstantUtf8' which contains
     * the real data.
     *
     * @param index Index in constant pool
     * @param tag Tag of expected constant, either ConstantClass or ConstantString
     * @return Contents of string reference
     * @see ConstantClass
     * @see ConstantString
     * @throws IllegalArgumentException if tag is invalid
     */
    public String getConstantString(final int index, final byte tag) throws IllegalArgumentException {
        Constant c;
        int i;
        c = getConstant(index, tag);
        /*
         * This switch() is not that elegant, since the four classes have the same contents, they just differ in the name of the
         * index field variable. But we want to stick to the JVM naming conventions closely though we could have solved these
         * more elegantly by using the same variable name or by subclassing.
         */
        switch (tag) {
        case Const.CONSTANT_Class:
            i = ((ConstantClass) c).getNameIndex();
            break;
        case Const.CONSTANT_String:
            i = ((ConstantString) c).getStringIndex();
            break;
        case Const.CONSTANT_Module:
            i = ((ConstantModule) c).getNameIndex();
            break;
        case Const.CONSTANT_Package:
            i = ((ConstantPackage) c).getNameIndex();
            break;
        case Const.CONSTANT_Utf8:
            return ((ConstantUtf8) c).getBytes();
        // fallthrough
        default:
            throw new IllegalArgumentException("getConstantString called with illegal tag " + tag);
        }
        // Finally get the string from the constant pool
        c = getConstant(i, Const.CONSTANT_Utf8);
        return ((ConstantUtf8) c).getBytes();
    }

    /**
     * @return Length of constant pool.
     */
    public int getLength() {
        return constantPool == null ? 0 : constantPool.length;
    }

    /**
     * @param constant Constant to set
     */
    public void setConstant(final int index, final Constant constant) {
        constantPool[index] = constant;
    }

    /**
     * @param constantPool
     */
    public void setConstantPool(final Constant[] constantPool) {
        this.constantPool = constantPool;
    }

    /**
     * @return String representation.
     */
    @Override
    public String toString() {
        final StringBuilder buf = new StringBuilder();
        for (int i = 1; i < constantPool.length; i++) {
            buf.append(i).append(")").append(constantPool[i]).append("\n");
        }
        return buf.toString();
    }
}

## 内容2
### 文件路径：
src/main/java/org/apache/bcel/generic/ConstantPoolGen.java
### 代码内容：
/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 */
package org.apache.bcel.generic;

import java.util.HashMap;
import java.util.Map;

import org.apache.bcel.Const;
import org.apache.bcel.classfile.Constant;
import org.apache.bcel.classfile.ConstantCP;
import org.apache.bcel.classfile.ConstantClass;
import org.apache.bcel.classfile.ConstantDouble;
import org.apache.bcel.classfile.ConstantDynamic;
import org.apache.bcel.classfile.ConstantFieldref;
import org.apache.bcel.classfile.ConstantFloat;
import org.apache.bcel.classfile.ConstantInteger;
import org.apache.bcel.classfile.ConstantInterfaceMethodref;
import org.apache.bcel.classfile.ConstantInvokeDynamic;
import org.apache.bcel.classfile.ConstantLong;
import org.apache.bcel.classfile.ConstantMethodref;
import org.apache.bcel.classfile.ConstantNameAndType;
import org.apache.bcel.classfile.ConstantPool;
import org.apache.bcel.classfile.ConstantString;
import org.apache.bcel.classfile.ConstantUtf8;

/**
 * This class is used to build up a constant pool. The user adds constants via `addXXX' methods, `addString',
 * `addClass', etc.. These methods return an index into the constant pool. Finally, `getFinalConstantPool()' returns the
 * constant pool built up. Intermediate versions of the constant pool can be obtained with `getConstantPool()'. A
 * constant pool has capacity for Constants.MAX_SHORT entries. Note that the first (0) is used by the JVM and that
 * Double and Long constants need two slots.
 *
 * @see Constant
 */
public class ConstantPoolGen {

    private static class Index {

        final int index;

        Index(final int i) {
            index = i;
        }
    }

    private static final int DEFAULT_BUFFER_SIZE = 256;

    private static final String METHODREF_DELIM = ":";

    private static final String IMETHODREF_DELIM = "#";

    private static final String FIELDREF_DELIM = "&";
    private static final String NAT_DELIM = "%"; // Name and Type
    /**
     * @deprecated (since 6.0) will be made private; do not access directly, use getter/setter
     */
    @Deprecated
    protected int size;
    /**
     * @deprecated (since 6.0) will be made private; do not access directly, use getter/setter
     */
    @Deprecated
    protected Constant[] constants;

    /**
     * @deprecated (since 6.0) will be made private; do not access directly, use getSize()
     */
    @Deprecated
    protected int index = 1; // First entry (0) used by JVM

    private final Map<String, Index> stringTable = new HashMap<>();

    private final Map<String, Index> classTable = new HashMap<>();

    private final Map<String, Index> utf8Table = new HashMap<>();

    private final Map<String, Index> natTable = new HashMap<>();

    private final Map<String, Index> cpTable = new HashMap<>();

    /**
     * Create empty constant pool.
     */
    public ConstantPoolGen() {
        size = DEFAULT_BUFFER_SIZE;
        constants = new Constant[size];
    }

    /**
     * Initialize with given array of constants.
     *
     * @param cs array of given constants, new ones will be appended
     */
    public ConstantPoolGen(final Constant[] cs) {
        final StringBuilder sb = new StringBuilder(DEFAULT_BUFFER_SIZE);

        size = Math.max(DEFAULT_BUFFER_SIZE, cs.length + 64);
        constants = new Constant[size];

        System.arraycopy(cs, 0, constants, 0, cs.length);
        if (cs.length > 0) {
            index = cs.length;
        }

        for (int i = 1; i < index; i++) {
            final Constant c = constants[i];
            if (c instanceof ConstantString) {
                final ConstantString s = (ConstantString) c;
                final ConstantUtf8 u8 = (ConstantUtf8) constants[s.getStringIndex()];
                final String key = u8.getBytes();
                if (!stringTable.containsKey(key)) {
                    stringTable.put(key, new Index(i));
                }
            } else if (c instanceof ConstantClass) {
                final ConstantClass s = (ConstantClass) c;
                final ConstantUtf8 u8 = (ConstantUtf8) constants[s.getNameIndex()];
                final String key = u8.getBytes();
                if (!classTable.containsKey(key)) {
                    classTable.put(key, new Index(i));
                }
            } else if (c instanceof ConstantNameAndType) {
                final ConstantNameAndType n = (ConstantNameAndType) c;
                final ConstantUtf8 u8 = (ConstantUtf8) constants[n.getNameIndex()];
                final ConstantUtf8 u8_2 = (ConstantUtf8) constants[n.getSignatureIndex()];

                sb.append(u8.getBytes());
                sb.append(NAT_DELIM);
                sb.append(u8_2.getBytes());
                final String key = sb.toString();
                sb.delete(0, sb.length());

                if (!natTable.containsKey(key)) {
                    natTable.put(key, new Index(i));
                }
            } else if (c instanceof ConstantUtf8) {
                final ConstantUtf8 u = (ConstantUtf8) c;
                final String key = u.getBytes();
                if (!utf8Table.containsKey(key)) {
                    utf8Table.put(key, new Index(i));
                }
            } else if (c instanceof ConstantCP) {
                final ConstantCP m = (ConstantCP) c;
                String className;
                ConstantUtf8 u8;

                if (c instanceof ConstantInvokeDynamic) {
                    className = Integer.toString(((ConstantInvokeDynamic) m).getBootstrapMethodAttrIndex());
                } else if (c instanceof ConstantDynamic) {
                    className = Integer.toString(((ConstantDynamic) m).getBootstrapMethodAttrIndex());
                } else {
                    final ConstantClass clazz = (ConstantClass) constants[m.getClassIndex()];
                    u8 = (ConstantUtf8) constants[clazz.getNameIndex()];
                    className = u8.getBytes().replace('/', '.');
                }

                final ConstantNameAndType n = (ConstantNameAndType) constants[m.getNameAndTypeIndex()];
                u8 = (ConstantUtf8) constants[n.getNameIndex()];
                final String method_name = u8.getBytes();
                u8 = (ConstantUtf8) constants[n.getSignatureIndex()];
                final String signature = u8.getBytes();

                // Since name cannot begin with digit, we can use METHODREF_DELIM without fear of duplicates
                String delim = METHODREF_DELIM;
                if (c instanceof ConstantInterfaceMethodref) {
                    delim = IMETHODREF_DELIM;
                } else if (c instanceof ConstantFieldref) {
                    delim = FIELDREF_DELIM;
                }

                sb.append(className);
                sb.append(delim);
                sb.append(method_name);
                sb.append(delim);
                sb.append(signature);
                final String key = sb.toString();
                sb.delete(0, sb.length());

                if (!cpTable.containsKey(key)) {
                    cpTable.put(key, new Index(i));
                }
            } else if (c == null) { // entries may be null
                // nothing to do
            } else if (c instanceof ConstantInteger) {
                // nothing to do
            } else if (c instanceof ConstantLong) {
                // nothing to do
            } else if (c instanceof ConstantFloat) {
                // nothing to do
            } else if (c instanceof ConstantDouble) {
                // nothing to do
            } else if (c instanceof org.apache.bcel.classfile.ConstantMethodType) {
                // TODO should this be handled somehow?
            } else if (c instanceof org.apache.bcel.classfile.ConstantMethodHandle) {
                // TODO should this be handled somehow?
            } else if (c instanceof org.apache.bcel.classfile.ConstantModule) {
                // TODO should this be handled somehow?
            } else if (c instanceof org.apache.bcel.classfile.ConstantPackage) {
                // TODO should this be handled somehow?
            } else {
                assert false : "Unexpected constant type: " + c.getClass().getName();
            }
        }
    }

    /**
     * Initialize with given constant pool.
     */
    public ConstantPoolGen(final ConstantPool cp) {
        this(cp.getConstantPool());
    }

    /**
     * Add a reference to an array class (e.g. String[][]) as needed by MULTIANEWARRAY instruction, e.g. to the
     * ConstantPool.
     *
     * @param type type of array class
     * @return index of entry
     */
    public int addArrayClass(final ArrayType type) {
        return addClass_(type.getSignature());
    }

    /**
     * Add a new Class reference to the ConstantPool for a given type.
     *
     * @param type Class to add
     * @return index of entry
     */
    public int addClass(final ObjectType type) {
        return addClass(type.getClassName());
    }

    /**
     * Add a new Class reference to the ConstantPool, if it is not already in there.
     *
     * @param str Class to add
     * @return index of entry
     */
    public int addClass(final String str) {
        return addClass_(str.replace('.', '/'));
    }

    private int addClass_(final String clazz) {
        int ret;
        if ((ret = lookupClass(clazz)) != -1) {
            return ret; // Already in CP
        }
        adjustSize();
        final ConstantClass c = new ConstantClass(addUtf8(clazz));
        ret = index;
        constants[index++] = c;
        if (!classTable.containsKey(clazz)) {
            classTable.put(clazz, new Index(ret));
        }
        return ret;
    }

    /**
     * Import constant from another ConstantPool and return new index.
     */
    public int addConstant(final Constant c, final ConstantPoolGen cp) {
        final Constant[] constants = cp.getConstantPool().getConstantPool();
        switch (c.getTag()) {
        case Const.CONSTANT_String: {
            final ConstantString s = (ConstantString) c;
            final ConstantUtf8 u8 = (ConstantUtf8) constants[s.getStringIndex()];
            return addString(u8.getBytes());
        }
        case Const.CONSTANT_Class: {
            final ConstantClass s = (ConstantClass) c;
            final ConstantUtf8 u8 = (ConstantUtf8) constants[s.getNameIndex()];
            return addClass(u8.getBytes());
        }
        case Const.CONSTANT_NameAndType: {
            final ConstantNameAndType n = (ConstantNameAndType) c;
            final ConstantUtf8 u8 = (ConstantUtf8) constants[n.getNameIndex()];
            final ConstantUtf8 u8_2 = (ConstantUtf8) constants[n.getSignatureIndex()];
            return addNameAndType(u8.getBytes(), u8_2.getBytes());
        }
        case Const.CONSTANT_Utf8:
            return addUtf8(((ConstantUtf8) c).getBytes());
        case Const.CONSTANT_Double:
            return addDouble(((ConstantDouble) c).getBytes());
        case Const.CONSTANT_Float:
            return addFloat(((ConstantFloat) c).getBytes());
        case Const.CONSTANT_Long:
            return addLong(((ConstantLong) c).getBytes());
        case Const.CONSTANT_Integer:
            return addInteger(((ConstantInteger) c).getBytes());
        case Const.CONSTANT_InterfaceMethodref:
        case Const.CONSTANT_Methodref:
        case Const.CONSTANT_Fieldref: {
            final ConstantCP m = (ConstantCP) c;
            final ConstantClass clazz = (ConstantClass) constants[m.getClassIndex()];
            final ConstantNameAndType n = (ConstantNameAndType) constants[m.getNameAndTypeIndex()];
            ConstantUtf8 u8 = (ConstantUtf8) constants[clazz.getNameIndex()];
            final String className = u8.getBytes().replace('/', '.');
            u8 = (ConstantUtf8) constants[n.getNameIndex()];
            final String name = u8.getBytes();
            u8 = (ConstantUtf8) constants[n.getSignatureIndex()];
            final String signature = u8.getBytes();
            switch (c.getTag()) {
            case Const.CONSTANT_InterfaceMethodref:
                return addInterfaceMethodref(className, name, signature);
            case Const.CONSTANT_Methodref:
                return addMethodref(className, name, signature);
            case Const.CONSTANT_Fieldref:
                return addFieldref(className, name, signature);
            default: // Never reached
                throw new IllegalArgumentException("Unknown constant type " + c);
            }
        }
        default: // Never reached
            throw new IllegalArgumentException("Unknown constant type " + c);
        }
    }

    /**
     * Add a new double constant to the ConstantPool, if it is not already in there.
     *
     * @param n Double number to add
     * @return index of entry
     */
    public int addDouble(final double n) {
        int ret;
        if ((ret = lookupDouble(n)) != -1) {
            return ret; // Already in CP
        }
        adjustSize();
        ret = index;
        constants[index] = new ConstantDouble(n);
        index += 2; // Wastes one entry according to spec
        return ret;
    }

    /**
     * Add a new Fieldref constant to the ConstantPool, if it is not already in there.
     *
     * @param className class name string to add
     * @param field_name field name string to add
     * @param signature signature string to add
     * @return index of entry
     */
    public int addFieldref(final String className, final String field_name, final String signature) {
        int ret;
        int classIndex;
        int nameAndTypeIndex;
        if ((ret = lookupFieldref(className, field_name, signature)) != -1) {
            return ret; // Already in CP
        }
        adjustSize();
        classIndex = addClass(className);
        nameAndTypeIndex = addNameAndType(field_name, signature);
        ret = index;
        constants[index++] = new ConstantFieldref(classIndex, nameAndTypeIndex);
        final String key = className + FIELDREF_DELIM + field_name + FIELDREF_DELIM + signature;
        if (!cpTable.containsKey(key)) {
            cpTable.put(key, new Index(ret));
        }
        return ret;
    }

    /**
     * Add a new Float constant to the ConstantPool, if it is not already in there.
     *
     * @param n Float number to add
     * @return index of entry
     */
    public int addFloat(final float n) {
        int ret;
        if ((ret = lookupFloat(n)) != -1) {
            return ret; // Already in CP
        }
        adjustSize();
        ret = index;
        constants[index++] = new ConstantFloat(n);
        return ret;
    }

    /**
     * Add a new Integer constant to the ConstantPool, if it is not already in there.
     *
     * @param n integer number to add
     * @return index of entry
     */
    public int addInteger(final int n) {
        int ret;
        if ((ret = lookupInteger(n)) != -1) {
            return ret; // Already in CP
        }
        adjustSize();
        ret = index;
        constants[index++] = new ConstantInteger(n);
        return ret;
    }

    public int addInterfaceMethodref(final MethodGen method) {
        return addInterfaceMethodref(method.getClassName(), method.getName(), method.getSignature());
    }

    /**
     * Add a new InterfaceMethodref constant to the ConstantPool, if it is not already in there.
     *
     * @param className class name string to add
     * @param method_name method name string to add
     * @param signature signature string to add
     * @return index of entry
     */
    public int addInterfaceMethodref(final String className, final String method_name, final String signature) {
        int ret;
        int classIndex;
        int nameAndTypeIndex;
        if ((ret = lookupInterfaceMethodref(className, method_name, signature)) != -1) {
            return ret; // Already in CP
        }
        adjustSize();
        classIndex = addClass(className);
        nameAndTypeIndex = addNameAndType(method_name, signature);
        ret = index;
        constants[index++] = new ConstantInterfaceMethodref(classIndex, nameAndTypeIndex);
        final String key = className + IMETHODREF_DELIM + method_name + IMETHODREF_DELIM + signature;
        if (!cpTable.containsKey(key)) {
            cpTable.put(key, new Index(ret));
        }
        return ret;
    }

    /**
     * Add a new long constant to the ConstantPool, if it is not already in there.
     *
     * @param n Long number to add
     * @return index of entry
     */
    public int addLong(final long n) {
        int ret;
        if ((ret = lookupLong(n)) != -1) {
            return ret; // Already in CP
        }
        adjustSize();
        ret = index;
        constants[index] = new ConstantLong(n);
        index += 2; // Wastes one entry according to spec
        return ret;
    }

    public int addMethodref(final MethodGen method) {
        return addMethodref(method.getClassName(), method.getName(), method.getSignature());
    }

    /**
     * Add a new Methodref constant to the ConstantPool, if it is not already in there.
     *
     * @param className class name string to add
     * @param method_name method name string to add
     * @param signature method signature string to add
     * @return index of entry
     */
    public int addMethodref(final String className, final String method_name, final String signature) {
        int ret;
        int classIndex;
        int nameAndTypeIndex;
        if ((ret = lookupMethodref(className, method_name, signature)) != -1) {
            return ret; // Already in CP
        }
        adjustSize();
        nameAndTypeIndex = addNameAndType(method_name, signature);
        classIndex = addClass(className);
        ret = index;
        constants[index++] = new ConstantMethodref(classIndex, nameAndTypeIndex);
        final String key = className + METHODREF_DELIM + method_name + METHODREF_DELIM + signature;
        if (!cpTable.containsKey(key)) {
            cpTable.put(key, new Index(ret));
        }
        return ret;
    }

    /**
     * Add a new NameAndType constant to the ConstantPool if it is not already in there.
     *
     * @param name Name string to add
     * @param signature signature string to add
     * @return index of entry
     */
    public int addNameAndType(final String name, final String signature) {
        int ret;
        int name_index;
        int signature_index;
        if ((ret = lookupNameAndType(name, signature)) != -1) {
            return ret; // Already in CP
        }
        adjustSize();
        name_index = addUtf8(name);
        signature_index = addUtf8(signature);
        ret = index;
        constants[index++] = new ConstantNameAndType(name_index, signature_index);
        final String key = name + NAT_DELIM + signature;
        if (!natTable.containsKey(key)) {
            natTable.put(key, new Index(ret));
        }
        return ret;
    }

    /**
     * Add a new String constant to the ConstantPool, if it is not already in there.
     *
     * @param str String to add
     * @return index of entry
     */
    public int addString(final String str) {
        int ret;
        if ((ret = lookupString(str)) != -1) {
            return ret; // Already in CP
        }
        final int utf8 = addUtf8(str);
        adjustSize();
        final ConstantString s = new ConstantString(utf8);
        ret = index;
        constants[index++] = s;
        if (!stringTable.containsKey(str)) {
            stringTable.put(str, new Index(ret));
        }
        return ret;
    }

    /**
     * Add a new Utf8 constant to the ConstantPool, if it is not already in there.
     *
     * @param n Utf8 string to add
     * @return index of entry
     */
    public int addUtf8(final String n) {
        int ret;
        if ((ret = lookupUtf8(n)) != -1) {
            return ret; // Already in CP
        }
        adjustSize();
        ret = index;
        constants[index++] = new ConstantUtf8(n);
        if (!utf8Table.containsKey(n)) {
            utf8Table.put(n, new Index(ret));
        }
        return ret;
    }

    /**
     * Resize internal array of constants.
     */
    protected void adjustSize() {
        if (index + 3 >= size) {
            final Constant[] cs = constants;
            size *= 2;
            constants = new Constant[size];
            System.arraycopy(cs, 0, constants, 0, index);
        }
    }

    /**
     * @param i index in constant pool
     * @return constant pool entry at index i
     */
    public Constant getConstant(final int i) {
        return constants[i];
    }

    /**
     * @return intermediate constant pool
     */
    public ConstantPool getConstantPool() {
        return new ConstantPool(constants);
    }

    /**
     * @return constant pool with proper length
     */
    public ConstantPool getFinalConstantPool() {
        final Constant[] cs = new Constant[index];
        System.arraycopy(constants, 0, cs, 0, index);
        return new ConstantPool(cs);
    }

    /**
     * @return current size of constant pool
     */
    public int getSize() {
        return index;
    }

    /**
     * Look for ConstantClass in ConstantPool named `str'.
     *
     * @param str String to search for
     * @return index on success, -1 otherwise
     */
    public int lookupClass(final String str) {
        final Index index = classTable.get(str.replace('.', '/'));
        return index != null ? index.index : -1;
    }

    /**
     * Look for ConstantDouble in ConstantPool.
     *
     * @param n Double number to look for
     * @return index on success, -1 otherwise
     */
    public int lookupDouble(final double n) {
        final long bits = Double.doubleToLongBits(n);
        for (int i = 1; i < index; i++) {
            if (constants[i] instanceof ConstantDouble) {
                final ConstantDouble c = (ConstantDouble) constants[i];
                if (Double.doubleToLongBits(c.getBytes()) == bits) {
                    return i;
                }
            }
        }
        return -1;
    }

    /**
     * Look for ConstantFieldref in ConstantPool.
     *
     * @param className Where to find method
     * @param fieldName Guess what
     * @param signature return and argument types
     * @return index on success, -1 otherwise
     */
    public int lookupFieldref(final String className, final String fieldName, final String signature) {
        final Index index = cpTable.get(className + FIELDREF_DELIM + fieldName + FIELDREF_DELIM + signature);
        return index != null ? index.index : -1;
    }

    /**
     * Look for ConstantFloat in ConstantPool.
     *
     * @param n Float number to look for
     * @return index on success, -1 otherwise
     */
    public int lookupFloat(final float n) {
        final int bits = Float.floatToIntBits(n);
        for (int i = 1; i < index; i++) {
            if (constants[i] instanceof ConstantFloat) {
                final ConstantFloat c = (ConstantFloat) constants[i];
                if (Float.floatToIntBits(c.getBytes()) == bits) {
                    return i;
                }
            }
        }
        return -1;
    }

    /**
     * Look for ConstantInteger in ConstantPool.
     *
     * @param n integer number to look for
     * @return index on success, -1 otherwise
     */
    public int lookupInteger(final int n) {
        for (int i = 1; i < index; i++) {
            if (constants[i] instanceof ConstantInteger) {
                final ConstantInteger c = (ConstantInteger) constants[i];
                if (c.getBytes() == n) {
                    return i;
                }
            }
        }
        return -1;
    }

    public int lookupInterfaceMethodref(final MethodGen method) {
        return lookupInterfaceMethodref(method.getClassName(), method.getName(), method.getSignature());
    }

    /**
     * Look for ConstantInterfaceMethodref in ConstantPool.
     *
     * @param className Where to find method
     * @param method_name Guess what
     * @param signature return and argument types
     * @return index on success, -1 otherwise
     */
    public int lookupInterfaceMethodref(final String className, final String method_name, final String signature) {
        final Index index = cpTable.get(className + IMETHODREF_DELIM + method_name + IMETHODREF_DELIM + signature);
        return index != null ? index.index : -1;
    }

    /**
     * Look for ConstantLong in ConstantPool.
     *
     * @param n Long number to look for
     * @return index on success, -1 otherwise
     */
    public int lookupLong(final long n) {
        for (int i = 1; i < index; i++) {
            if (constants[i] instanceof ConstantLong) {
                final ConstantLong c = (ConstantLong) constants[i];
                if (c.getBytes() == n) {
                    return i;
                }
            }
        }
        return -1;
    }

    public int lookupMethodref(final MethodGen method) {
        return lookupMethodref(method.getClassName(), method.getName(), method.getSignature());
    }

    /**
     * Look for ConstantMethodref in ConstantPool.
     *
     * @param className Where to find method
     * @param method_name Guess what
     * @param signature return and argument types
     * @return index on success, -1 otherwise
     */
    public int lookupMethodref(final String className, final String method_name, final String signature) {
        final Index index = cpTable.get(className + METHODREF_DELIM + method_name + METHODREF_DELIM + signature);
        return index != null ? index.index : -1;
    }

    /**
     * Look for ConstantNameAndType in ConstantPool.
     *
     * @param name of variable/method
     * @param signature of variable/method
     * @return index on success, -1 otherwise
     */
    public int lookupNameAndType(final String name, final String signature) {
        final Index index = natTable.get(name + NAT_DELIM + signature);
        return index != null ? index.index : -1;
    }

    /**
     * Look for ConstantString in ConstantPool containing String `str'.
     *
     * @param str String to search for
     * @return index on success, -1 otherwise
     */
    public int lookupString(final String str) {
        final Index index = stringTable.get(str);
        return index != null ? index.index : -1;
    }

    /**
     * Look for ConstantUtf8 in ConstantPool.
     *
     * @param n Utf8 string to look for
     * @return index on success, -1 otherwise
     */
    public int lookupUtf8(final String n) {
        final Index index = utf8Table.get(n);
        return index != null ? index.index : -1;
    }

    /**
     * Use with care!
     *
     * @param i index in constant pool
     * @param c new constant pool entry at index i
     */
    public void setConstant(final int i, final Constant c) {
        constants[i] = c;
    }

    /**
     * @return String representation.
     */
    @Override
    public String toString() {
        final StringBuilder buf = new StringBuilder();
        for (int i = 1; i < index; i++) {
            buf.append(i).append(")").append(constants[i]).append("\n");
        }
        return buf.toString();
    }
}

Output:
【漏洞类型】缓冲区溢出漏洞
【严重性】High
【漏洞摘要】这是一个缓冲区溢出漏洞。在原始代码中，`ConstantPoolGen` 类的构造函数和 `adjustSize` 方法没有对常量池的大小进行严格的限制，导致常量池的大小可能超出 JVM 的最大限制（`Constants.MAX_CP_ENTRIES`，即 65535）。具体表现为在 `dump` 方法中，常量池的大小可能被写入到文件中，而实际常量池中的元素可能超过 65535 个，从而导致 JVM 在加载类文件时发生错误。
【关键代码模式】关键代码模式包括 `ConstantPoolGen` 类的构造函数和 `adjustSize` 方法中对 `size` 的计算和限制，以及 `ConstantPool` 类的 `dump` 方法中对 `constantPool.length` 的直接写入。
【修复方法说明】修复方法通过在 `ConstantPoolGen` 类的构造函数和 `adjustSize` 方法中添加对 `Const.MAX_CP_ENTRIES` 的限制，以及在 `ConstantPool` 类的 `dump` 方法中使用 `Math.min` 确保写入的常量池大小不会超过限制，从而解决了缓冲区溢出的问题。


Instruction:
作为 Java 安全专家，检测此代码中的安全漏洞：
## 内容1
### 文件路径：
oidc-authenticator/src/main/java/org/xwiki/contrib/oidc/auth/internal/OIDCClientConfiguration.java
### 代码内容：
/*
 * See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.xwiki.contrib.oidc.auth.internal;

import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;

import javax.inject.Inject;
import javax.inject.Singleton;
import javax.servlet.http.HttpSession;

import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.lang3.StringUtils;
import org.joda.time.LocalDateTime;
import org.slf4j.Logger;
import org.xwiki.component.annotation.Component;
import org.xwiki.configuration.ConfigurationSource;
import org.xwiki.container.Container;
import org.xwiki.container.Request;
import org.xwiki.container.Session;
import org.xwiki.container.servlet.ServletSession;
import org.xwiki.contrib.oidc.OIDCIdToken;
import org.xwiki.contrib.oidc.OIDCUserInfo;
import org.xwiki.contrib.oidc.internal.OIDCConfiguration;
import org.xwiki.contrib.oidc.provider.internal.OIDCManager;
import org.xwiki.contrib.oidc.provider.internal.endpoint.AuthorizationOIDCEndpoint;
import org.xwiki.contrib.oidc.provider.internal.endpoint.LogoutOIDCEndpoint;
import org.xwiki.contrib.oidc.provider.internal.endpoint.TokenOIDCEndpoint;
import org.xwiki.contrib.oidc.provider.internal.endpoint.UserInfoOIDCEndpoint;
import org.xwiki.instance.InstanceIdManager;
import org.xwiki.properties.ConverterManager;

import com.nimbusds.oauth2.sdk.Scope;
import com.nimbusds.oauth2.sdk.auth.ClientAuthenticationMethod;
import com.nimbusds.oauth2.sdk.auth.Secret;
import com.nimbusds.oauth2.sdk.http.HTTPRequest;
import com.nimbusds.oauth2.sdk.id.ClientID;
import com.nimbusds.oauth2.sdk.token.BearerAccessToken;
import com.nimbusds.openid.connect.sdk.OIDCClaimsRequest;
import com.nimbusds.openid.connect.sdk.OIDCScopeValue;
import com.nimbusds.openid.connect.sdk.claims.ClaimsSetRequest;
import com.nimbusds.openid.connect.sdk.claims.IDTokenClaimsSet;

/**
 * Various OpenID Connect authenticator configurations.
 *
 * @version $Id$
 */
@Component(roles = OIDCClientConfiguration.class)
@Singleton
public class OIDCClientConfiguration extends OIDCConfiguration
{
    public class GroupMapping
    {
        private final Map<String, Set<String>> xwikiMapping;

        private final Map<String, Set<String>> providerMapping;

        public GroupMapping(int size)
        {
            this.xwikiMapping = new HashMap<>(size);
            this.providerMapping = new HashMap<>(size);
        }

        public Set<String> fromXWiki(String xwikiGroup)
        {
            return this.xwikiMapping.get(xwikiGroup);
        }

        public Set<String> fromProvider(String providerGroup)
        {
            return this.providerMapping.get(providerGroup);
        }

        public Map<String, Set<String>> getXWikiMapping()
        {
            return this.xwikiMapping;
        }

        public Map<String, Set<String>> getProviderMapping()
        {
            return this.providerMapping;
        }
    }

    public static final String PROP_XWIKIPROVIDER = "oidc.xwikiprovider";

    public static final String PROP_USER_NAMEFORMATER = "oidc.user.nameFormater";

    public static final String DEFAULT_USER_NAMEFORMATER =
        "${oidc.issuer.host._clean}-${oidc.user.preferredUsername._clean}";

    /**
     * @since 1.11
     */
    public static final String PROP_USER_SUBJECTFORMATER = "oidc.user.subjectFormater";

    /**
     * @since 1.18
     */
    public static final String PROP_USER_MAPPING = "oidc.user.mapping";

    /**
     * @since 1.11
     */
    public static final String DEFAULT_USER_SUBJECTFORMATER = "${oidc.user.subject}";

    public static final String PROPPREFIX_ENDPOINT = "oidc.endpoint.";

    public static final String PROP_ENDPOINT_AUTHORIZATION = PROPPREFIX_ENDPOINT + AuthorizationOIDCEndpoint.HINT;

    public static final String PROP_ENDPOINT_TOKEN = PROPPREFIX_ENDPOINT + TokenOIDCEndpoint.HINT;

    public static final String PROP_ENDPOINT_USERINFO = PROPPREFIX_ENDPOINT + UserInfoOIDCEndpoint.HINT;

    /**
     * @since 1.21
     */
    public static final String PROP_ENDPOINT_LOGOUT = PROPPREFIX_ENDPOINT + LogoutOIDCEndpoint.HINT;

    public static final String PROP_CLIENTID = "oidc.clientid";

    /**
     * @since 1.13
     */
    public static final String PROP_SECRET = "oidc.secret";

    public static final String PROP_SKIPPED = "oidc.skipped";

    /**
     * @since 1.13
     */
    public static final String PROP_ENDPOINT_TOKEN_AUTH_METHOD =
        PROPPREFIX_ENDPOINT + TokenOIDCEndpoint.HINT + ".auth_method";

    /**
     * @since 1.13
     */
    public static final String PROP_ENDPOINT_USERINFO_METHOD =
        PROPPREFIX_ENDPOINT + UserInfoOIDCEndpoint.HINT + ".method";

    /**
     * @since 1.22
     */
    public static final String PROP_ENDPOINT_USERINFO_HEADERS =
        PROPPREFIX_ENDPOINT + UserInfoOIDCEndpoint.HINT + ".headers";

    /**
     * @since 1.21
     */
    public static final String PROP_ENDPOINT_LOGOUT_METHOD = PROPPREFIX_ENDPOINT + LogoutOIDCEndpoint.HINT + ".method";

    /**
     * @since 1.12
     */
    public static final String PROP_USERINFOREFRESHRATE = "oidc.userinforefreshrate";

    /**
     * @since 1.16
     */
    public static final String PROP_SCOPE = "oidc.scope";

    public static final String PROP_USERINFOCLAIMS = "oidc.userinfoclaims";

    public static final List<String> DEFAULT_USERINFOCLAIMS = Arrays.asList(OIDCUserInfo.CLAIM_XWIKI_ACCESSIBILITY,
        OIDCUserInfo.CLAIM_XWIKI_COMPANY, OIDCUserInfo.CLAIM_XWIKI_DISPLAYHIDDENDOCUMENTS,
        OIDCUserInfo.CLAIM_XWIKI_EDITOR, OIDCUserInfo.CLAIM_XWIKI_USERTYPE);

    public static final String PROP_IDTOKENCLAIMS = "oidc.idtokenclaims";

    public static final List<String> DEFAULT_IDTOKENCLAIMS = Arrays.asList(OIDCIdToken.CLAIM_XWIKI_INSTANCE_ID);

    /**
     * @since 1.10
     */
    public static final String PROP_GROUPS_MAPPING = "oidc.groups.mapping";

    /**
     * @since 1.10
     */
    public static final String PROP_GROUPS_ALLOWED = "oidc.groups.allowed";

    /**
     * @since 1.10
     */
    public static final String PROP_GROUPS_FORBIDDEN = "oidc.groups.forbidden";

    /**
     * @since 1.27
     */
    public static final String PROP_GROUPS_PREFIX = "oidc.groups.prefix";

    /**
     * @since 1.27
     */
    public static final String PROP_GROUPS_SEPARATOR = "oidc.groups.separator";

    public static final String PROP_INITIAL_REQUEST = "xwiki.initialRequest";

    public static final String PROP_STATE = "oidc.state";

    public static final String PROP_SESSION_ACCESSTOKEN = "oidc.accesstoken";

    public static final String PROP_SESSION_IDTOKEN = "oidc.idtoken";

    public static final String PROP_SESSION_USERINFO_EXPORATIONDATE = "oidc.session.userinfoexpirationdate";

    private static final String XWIKI_GROUP_PREFIX = "XWiki.";

    @Inject
    private InstanceIdManager instance;

    @Inject
    private OIDCManager manager;

    @Inject
    private Container container;

    @Inject
    private ConverterManager converter;

    @Inject
    private Logger logger;

    @Inject
    // TODO: store configuration in custom objects
    private ConfigurationSource configuration;

    private HttpSession getHttpSession()
    {
        Session session = this.container.getSession();
        if (session instanceof ServletSession) {
            HttpSession httpSession = ((ServletSession) session).getHttpSession();

            this.logger.debug("Session: {}", httpSession.getId());

            return httpSession;
        }

        return null;
    }

    private <T> T getSessionAttribute(String name)
    {
        HttpSession session = getHttpSession();
        if (session != null) {
            return (T) session.getAttribute(name);
        }

        return null;
    }

    private <T> T removeSessionAttribute(String name)
    {
        HttpSession session = getHttpSession();
        if (session != null) {
            try {
                return (T) session.getAttribute(name);
            } finally {
                session.removeAttribute(name);
            }
        }

        return null;
    }

    private void setSessionAttribute(String name, Object value)
    {
        HttpSession session = getHttpSession();
        if (session != null) {
            session.setAttribute(name, value);
        }
    }

    private String getRequestParameter(String key)
    {
        Request request = this.container.getRequest();
        if (request != null) {
            return (String) request.getProperty(key);
        }

        return null;
    }

    public Map<String, String> getMap(String key)
    {
        List<String> list = getProperty(key, List.class);

        Map<String, String> mapping;

        if (list != null && !list.isEmpty()) {
            mapping = new HashMap<>(list.size());

            for (String listItem : list) {
                int index = listItem.indexOf('=');

                if (index != -1) {
                    mapping.put(listItem.substring(0, index), listItem.substring(index + 1));
                }
            }
        } else {
            mapping = null;
        }

        return mapping;
    }

    @Override
    protected <T> T getProperty(String key, Class<T> valueClass)
    {
        // Get property from request
        String requestValue = getRequestParameter(key);
        if (requestValue != null) {
            return this.converter.convert(valueClass, requestValue);
        }

        // Get property from session
        T sessionValue = getSessionAttribute(key);
        if (sessionValue != null) {
            return sessionValue;
        }

        // Get property from configuration
        return this.configuration.getProperty(key, valueClass);
    }

    @Override
    protected <T> T getProperty(String key, T def)
    {
        // Get property from request
        String requestValue = getRequestParameter(key);
        if (requestValue != null) {
            return this.converter.convert(def.getClass(), requestValue);
        }

        // Get property from session
        T sessionValue = getSessionAttribute(key);
        if (sessionValue != null) {
            return sessionValue;
        }

        // Get property from configuration
        return this.configuration.getProperty(key, def);
    }

    /**
     * @since 1.18
     */
    public String getSubjectFormater()
    {
        String userFormatter = getProperty(PROP_USER_SUBJECTFORMATER, String.class);
        if (userFormatter == null) {
            userFormatter = DEFAULT_USER_SUBJECTFORMATER;
        }

        return userFormatter;
    }

    /**
     * @since 1.11
     */
    public String getXWikiUserNameFormater()
    {
        String userFormatter = getProperty(PROP_USER_NAMEFORMATER, String.class);
        if (userFormatter == null) {
            userFormatter = DEFAULT_USER_NAMEFORMATER;
        }

        return userFormatter;
    }

    /**
     * @since 1.18
     */
    public Map<String, String> getUserMapping()
    {
        return getMap(PROP_USER_MAPPING);
    }

    public URL getXWikiProvider()
    {
        return getProperty(PROP_XWIKIPROVIDER, URL.class);
    }

    private Endpoint getEndPoint(String hint) throws URISyntaxException
    {
        // TODO: use URI directly when upgrading to a version of XWiki providing a URI converter
        String uriString = getProperty(PROPPREFIX_ENDPOINT + hint, String.class);

        // If no direct endpoint is provider assume it's a XWiki OIDC provider and generate the endpoint from the hint
        URI uri;
        if (uriString == null) {
            if (getProperty(PROP_XWIKIPROVIDER, String.class) != null) {
                uri = this.manager.createEndPointURI(getXWikiProvider().toString(), hint);
            } else {
                uri = null;
            }
        } else {
            uri = new URI(uriString);
        }

        // If we still don't have any endpoint URI, return null
        if (uri == null) {
            return null;
        }

        // Find custom headers
        Map<String, List<String>> headers = new LinkedHashMap<>();

        List<String> entries = getProperty(PROPPREFIX_ENDPOINT + hint + ".headers", List.class);
        if (entries != null) {
            for (String entry : entries) {
                int index = entry.indexOf(':');

                if (index > 0 && index < entry.length() - 1) {
                    headers.computeIfAbsent(entry.substring(0, index), key -> new ArrayList<>())
                        .add(entry.substring(index + 1));
                }
            }
        }

        return new Endpoint(uri, headers);
    }

    public Endpoint getAuthorizationOIDCEndpoint() throws URISyntaxException
    {
        return getEndPoint(AuthorizationOIDCEndpoint.HINT);
    }

    public Endpoint getTokenOIDCEndpoint() throws URISyntaxException
    {
        return getEndPoint(TokenOIDCEndpoint.HINT);
    }

    public Endpoint getUserInfoOIDCEndpoint() throws URISyntaxException
    {
        return getEndPoint(UserInfoOIDCEndpoint.HINT);
    }

    /**
     * @since 1.21
     */
    public Endpoint getLogoutOIDCEndpoint() throws URISyntaxException
    {
        return getEndPoint(LogoutOIDCEndpoint.HINT);
    }

    public ClientID getClientID()
    {
        String clientId = getProperty(PROP_CLIENTID, String.class);

        // Fallback on instance id
        return new ClientID(clientId != null ? clientId : this.instance.getInstanceId().getInstanceId());
    }

    /**
     * @since 1.13
     */
    public Secret getSecret()
    {
        String secret = getProperty(PROP_SECRET, String.class);
        if (StringUtils.isBlank(secret)) {
            return null;
        } else {
            return new Secret(secret);
        }
    }

    /**
     * @since 1.13
     */
    public ClientAuthenticationMethod getTokenEndPointAuthMethod()
    {
        String authMethod = getProperty(PROP_ENDPOINT_TOKEN_AUTH_METHOD, String.class);
        if ("client_secret_post".equalsIgnoreCase(authMethod)) {
            return ClientAuthenticationMethod.CLIENT_SECRET_POST;
        } else {
            return ClientAuthenticationMethod.CLIENT_SECRET_BASIC;
        }
    }

    /**
     * @since 1.13
     */
    public HTTPRequest.Method getUserInfoEndPointMethod()
    {
        return getProperty(PROP_ENDPOINT_USERINFO_METHOD, HTTPRequest.Method.GET);
    }

    /**
     * @since 1.21
     */
    public HTTPRequest.Method getLogoutEndPointMethod()
    {
        return getProperty(PROP_ENDPOINT_LOGOUT_METHOD, HTTPRequest.Method.GET);
    }

    public String getSessionState()
    {
        return getSessionAttribute(PROP_STATE);
    }

    public boolean isSkipped()
    {
        return getProperty(PROP_SKIPPED, false);
    }

    /**
     * @since 1.2
     */
    public OIDCClaimsRequest getClaimsRequest()
    {
        // TODO: allow passing the complete JSON as configuration
        OIDCClaimsRequest claimsRequest = new OIDCClaimsRequest();

        // ID Token claims
        List<String> idtokenclaims = getIDTokenClaims();
        if (idtokenclaims != null && !idtokenclaims.isEmpty()) {
            ClaimsSetRequest idtokenclaimsRequest = new ClaimsSetRequest();

            for (String claim : idtokenclaims) {
                idtokenclaimsRequest.add(claim);
            }

            claimsRequest.withIDTokenClaimsRequest(idtokenclaimsRequest);
        }

        // UserInfo claims
        List<String> userinfoclaims = getUserInfoClaims();
        if (userinfoclaims != null && !userinfoclaims.isEmpty()) {
            ClaimsSetRequest userinfoclaimsRequest = new ClaimsSetRequest();

            for (String claim : userinfoclaims) {
                userinfoclaimsRequest.add(claim);
            }

            claimsRequest.withUserInfoClaimsRequest(userinfoclaimsRequest);
        }

        return claimsRequest;
    }

    /**
     * @since 1.2
     */
    public List<String> getIDTokenClaims()
    {
        return getProperty(PROP_IDTOKENCLAIMS, DEFAULT_IDTOKENCLAIMS);
    }

    /**
     * @since 1.2
     */
    public List<String> getUserInfoClaims()
    {
        return getProperty(PROP_USERINFOCLAIMS, DEFAULT_USERINFOCLAIMS);
    }

    /**
     * @since 1.12
     */
    public int getUserInfoRefreshRate()
    {
        return getProperty(PROP_USERINFOREFRESHRATE, 600000);
    }

    /**
     * @since 1.2
     */
    public Scope getScope()
    {
        List<String> scopeValues = getProperty(PROP_SCOPE, List.class);

        if (CollectionUtils.isEmpty(scopeValues)) {
            return new Scope(OIDCScopeValue.OPENID, OIDCScopeValue.PROFILE, OIDCScopeValue.EMAIL,
                OIDCScopeValue.ADDRESS, OIDCScopeValue.PHONE);
        }

        return new Scope(scopeValues.toArray(new String[0]));
    }

    /**
     * @since 1.10
     */
    public GroupMapping getGroupMapping()
    {
        List<String> groupsMapping = getProperty(PROP_GROUPS_MAPPING, List.class);

        GroupMapping groups;

        if (groupsMapping != null && !groupsMapping.isEmpty()) {
            groups = new GroupMapping(groupsMapping.size());

            for (String groupMapping : groupsMapping) {
                int index = groupMapping.indexOf('=');

                if (index != -1) {
                    String xwikiGroup = toXWikiGroup(groupMapping.substring(0, index));
                    String providerGroup = groupMapping.substring(index + 1);

                    // Add to XWiki mapping
                    Set<String> providerGroups = groups.xwikiMapping.computeIfAbsent(xwikiGroup, k -> new HashSet<>());
                    providerGroups.add(providerGroup);

                    // Add to provider mapping
                    Set<String> xwikiGroups =
                        groups.providerMapping.computeIfAbsent(providerGroup, k -> new HashSet<>());
                    xwikiGroups.add(xwikiGroup);
                }
            }
        } else {
            groups = null;
        }

        return groups;
    }

    /**
     * @since 1.10
     */
    public String toXWikiGroup(String group)
    {
        return group.startsWith(XWIKI_GROUP_PREFIX) ? group : XWIKI_GROUP_PREFIX + group;
    }

    /**
     * @since 1.10
     */
    public List<String> getAllowedGroups()
    {
        List<String> groups = getProperty(PROP_GROUPS_ALLOWED, List.class);

        return groups != null && !groups.isEmpty() ? groups : null;
    }

    /**
     * @since 1.10
     */
    public List<String> getForbiddenGroups()
    {
        List<String> groups = getProperty(PROP_GROUPS_FORBIDDEN, List.class);

        return groups != null && !groups.isEmpty() ? groups : null;
    }

    /**
     * @since 1.27
     */
    public String getGroupPrefix()
    {
        String groupPrefix = getProperty(PROP_GROUPS_PREFIX, String.class);
        return groupPrefix != null && !groupPrefix.isEmpty() ? groupPrefix : null;
    }

    /**
     * @since 1.27
     */
    public String getGroupSeparator()
    {
        return getProperty(PROP_GROUPS_SEPARATOR, String.class);
    }

    // Session only

    /**
     * @since 1.2
     */
    public Date removeUserInfoExpirationDate()
    {
        return removeSessionAttribute(PROP_SESSION_USERINFO_EXPORATIONDATE);
    }

    /**
     * @since 1.2
     */
    public void setUserInfoExpirationDate(Date date)
    {
        setSessionAttribute(PROP_SESSION_USERINFO_EXPORATIONDATE, date);
    }

    /**
     * @since 1.2
     */
    public void resetUserInfoExpirationDate()
    {
        LocalDateTime expiration = LocalDateTime.now().plusMillis(getUserInfoRefreshRate());

        setUserInfoExpirationDate(expiration.toDate());
    }

    /**
     * @since 1.2
     */
    public BearerAccessToken getAccessToken()
    {
        return getSessionAttribute(PROP_SESSION_ACCESSTOKEN);
    }

    /**
     * @since 1.2
     */
    public void setAccessToken(BearerAccessToken accessToken)
    {
        setSessionAttribute(PROP_SESSION_ACCESSTOKEN, accessToken);
    }

    /**
     * @since 1.2
     */
    public IDTokenClaimsSet getIdToken()
    {
        return getSessionAttribute(PROP_SESSION_IDTOKEN);
    }

    /**
     * @since 1.2
     */
    public void setIdToken(IDTokenClaimsSet idToken)
    {
        setSessionAttribute(PROP_SESSION_IDTOKEN, idToken);
    }

    /**
     * @since 1.2
     */
    public URI getSuccessRedirectURI()
    {
        URI uri = getSessionAttribute(PROP_INITIAL_REQUEST);
        if (uri == null) {
            // TODO: return wiki hope page
        }

        return uri;
    }

    /**
     * @since 1.2
     */
    public void setSuccessRedirectURI(URI uri)
    {
        setSessionAttribute(PROP_INITIAL_REQUEST, uri);
    }

    /**
     * @return true if groups should be synchronized (in which case if the provider does not answer to the group claim
     *         it means the user does not belong to any group)
     * @since 1.14
     */
    public boolean isGroupSync()
    {
        String groupClaim = getGroupClaim();

        return getUserInfoClaims().contains(groupClaim);
    }
}

Output:
【漏洞类型】未验证的用户输入
【严重性】中等
【漏洞摘要】在`getProperty`方法中，代码直接从请求参数和会话属性中获取配置属性值，但没有对这些用户输入进行验证或清理。特别是对于`oidc.endpoint.*`和`oidc.xwikiprovider`等属性，如果用户输入恶意的URI或配置值，可能会导致安全问题，比如路径遍历、重定向攻击等。
【关键代码模式】`getRequestParameter`、`getSessionAttribute`、`getProperty`
【修复方法说明】修复方法通过引入一个安全属性集合`SAFE_PROPERTIES`，只允许特定的属性从请求参数中获取值，其他属性仍然从会话或配置源获取。这限制了用户输入可能带来的风险，遵循了最小权限原则和输入验证的最佳实践。


Instruction:
作为 Java 安全专家，检测此代码中的安全漏洞：
## 内容1
### 文件路径：
wflow-core/src/main/java/org/joget/plugin/enterprise/UserProfileMenu.java
### 代码内容：
package org.joget.plugin.enterprise;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Locale;
import java.util.Map;
import java.util.TreeMap;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import org.joget.apps.app.service.AppUtil;
import org.joget.apps.userview.model.UserviewBuilderPalette;
import org.joget.apps.userview.model.UserviewMenu;
import org.joget.commons.util.ResourceBundleUtil;
import org.joget.commons.util.SetupManager;
import org.joget.commons.util.StringUtil;
import org.joget.commons.util.TimeZoneUtil;
import org.joget.directory.dao.UserDao;
import org.joget.directory.model.User;
import org.joget.directory.model.service.DirectoryUtil;
import org.joget.directory.model.service.ExtDirectoryManager;
import org.joget.directory.model.service.UserSecurity;
import org.joget.plugin.base.PluginManager;
import org.joget.workflow.model.service.WorkflowUserManager;
import org.joget.workflow.util.WorkflowUtil;
import org.springframework.beans.BeanUtils;
import org.springframework.context.ApplicationContext;

public class UserProfileMenu extends UserviewMenu {

    @Override
    public String getClassName() {
        return getClass().getName();
    }

    @Override
    public String getLabel() {
        return "User Profile";
    }

    @Override
    public String getIcon() {
        return "";
    }

    public String getName() {
        return "User Profile Menu";
    }

    public String getVersion() {
        return "5.0.0";
    }

    public String getDescription() {
        return "";
    }

    public String getPropertyOptions() {
        return AppUtil.readPluginResource(getClass().getName(), "/properties/userview/userProfileMenu.json", null, true, "message/userview/userProfileMenu");
    }

    @Override
    public String getDecoratedMenu() {
        if ("true".equals(getRequestParameter("isPreview")) || "Yes".equals(getPropertyString("showInPopupDialog"))) {
            // sanitize label
            String label = getPropertyString("label");
            if (label != null) {
                label = StringUtil.stripHtmlRelaxed(label);
            }

            String menu = "" + label + "";
            menu += "";
            return menu;
        }
        return null;
    }

    @Override
    public boolean isHomePageSupported() {
        return true;
    }

    @Override
    public String getRenderPage() {
        if ("true".equals(getRequestParameterString("isPreview"))) {
            setProperty("isPreview", "true");
        } else {
            if ("submit".equals(getRequestParameterString("action"))) {
                // only allow POST
                HttpServletRequest request = WorkflowUtil.getHttpServletRequest();
                if (request != null && !"POST".equalsIgnoreCase(request.getMethod())) {
                    PluginManager pluginManager = (PluginManager)AppUtil.getApplicationContext().getBean("pluginManager");
                    String content = pluginManager.getPluginFreeMarkerTemplate(new HashMap(), getClass().getName(), "/templates/unauthorized.ftl", null);
                    return content;
                }

                submitForm();
            } else {
                viewForm(null);
            }
        }
        Map model = new HashMap();
        model.put("request", getRequestParameters());
        model.put("element", this);

        PluginManager pluginManager = (PluginManager)AppUtil.getApplicationContext().getBean("pluginManager");
        String content = pluginManager.getPluginFreeMarkerTemplate(model, getClass().getName(), "/templates/userProfile.ftl", null);
        return content;
    }

    private void viewForm(User submittedData) {
        setProperty("headerTitle", getPropertyString("label"));
        setProperty("view", "formView");

        ApplicationContext ac = AppUtil.getApplicationContext();
        WorkflowUserManager workflowUserManager = (WorkflowUserManager) ac.getBean("workflowUserManager");
        UserDao userDao = (UserDao) ac.getBean("userDao");
        User user = submittedData;
        if (user == null) {
            user = userDao.getUser(workflowUserManager.getCurrentUsername());
        }
        if (user != null && user.getReadonly()) {
            return;
        }
        setProperty("user", user);
        setProperty("timezones", TimeZoneUtil.getList());

        SetupManager setupManager = (SetupManager) ac.getBean("setupManager");
        String enableUserLocale = setupManager.getSettingValue("enableUserLocale");
        Map<String, String> localeStringList = new TreeMap<String, String>();
        if(enableUserLocale != null && enableUserLocale.equalsIgnoreCase("true")) {
            String userLocale = setupManager.getSettingValue("userLocale");
            Collection<String> locales = new HashSet();
            locales.addAll(Arrays.asList(userLocale.split(",")));

            Locale[] localeList = Locale.getAvailableLocales();
            for (int x = 0; x < localeList.length; x++) {
                String code = localeList[x].toString();
                if (locales.contains(code)) {
                    localeStringList.put(code, code + " - " +localeList[x].getDisplayName());
                }
            }
        }
        setProperty("enableUserLocale", enableUserLocale);
        setProperty("localeStringList", localeStringList);

        UserSecurity us = DirectoryUtil.getUserSecurity();
        if (us != null) {
            setProperty("policies", us.passwordPolicies());
            setProperty("userProfileFooter", us.getUserProfileFooter(user));
        }

        String url = getUrl() + "?action=submit";
        setProperty("actionUrl", url);
    }

    private void submitForm() {
        ApplicationContext ac = AppUtil.getApplicationContext();
        WorkflowUserManager workflowUserManager = (WorkflowUserManager) ac.getBean("workflowUserManager");
        UserDao userDao = (UserDao) ac.getBean("userDao");
        User userObject = userDao.getUser(workflowUserManager.getCurrentUsername());
        User currentUser = null;
        if (userObject != null) {
            currentUser = new User();
            BeanUtils.copyProperties(userObject, currentUser);
        }
        ExtDirectoryManager directoryManager = (ExtDirectoryManager) AppUtil.getApplicationContext().getBean("directoryManager");

        Collection<String> errors = new ArrayList<String>();
        Collection<String> passwordErrors = new ArrayList<String>();

        boolean authenticated = false;
        if (currentUser != null) {
            if (!currentUser.getUsername().equals(getRequestParameterString("username"))) {
                HttpServletRequest request = WorkflowUtil.getHttpServletRequest();
                if (request != null) {
                    HttpSession session = request.getSession(false);
                    if (session != null) {
                        session.invalidate();
                        authenticated = false;
                    }
                }
            } else {
                try {
                    if (directoryManager.authenticate(currentUser.getUsername(), getRequestParameterString("oldPassword"))) {
                        authenticated = true;
                    }
                } catch (Exception e) { }
            }
        }
        UserSecurity us = DirectoryUtil.getUserSecurity();

        if ("".equals(getPropertyString("f_firstName"))) {
            currentUser.setFirstName(getRequestParameterString("firstName"));
        }

        if ("".equals(getPropertyString("f_lastName"))) {
            currentUser.setLastName(getRequestParameterString("lastName"));
        }

        if ("".equals(getPropertyString("f_email"))) {
            currentUser.setEmail(getRequestParameterString("email"));
        }

        if ("".equals(getPropertyString("f_timeZone"))) {
            currentUser.setTimeZone(getRequestParameterString("timeZone"));
        }

        if ("".equals(getPropertyString("f_locale"))) {
            currentUser.setLocale(getRequestParameterString("locale"));
        }

        if (!authenticated) {
            if (errors == null) {
                errors = new ArrayList<String>();
            }
            errors.add(ResourceBundleUtil.getMessage("console.directory.user.error.label.authenticationFailed"));
        } else {
            if (us != null) {
                errors = us.validateUserOnProfileUpdate(currentUser);
            }

            if (getRequestParameterString("password") != null && !getRequestParameterString("password").isEmpty() && us != null) {
                passwordErrors = us.validatePassword(getRequestParameterString("username"),  getRequestParameterString("oldPassword"), getRequestParameterString("password"), getRequestParameterString("confirmPassword"));
            }
        }

        setProperty("errors", errors);
        if (passwordErrors != null && !passwordErrors.isEmpty()) {
            setProperty("passwordErrors", passwordErrors);
        }

        if (authenticated && (passwordErrors != null && passwordErrors.isEmpty()) && (errors != null && errors.isEmpty())) {
            if ("".equals(getPropertyString("f_password"))) {
                if (getRequestParameterString("password") != null && getRequestParameterString("confirmPassword") != null && getRequestParameterString("password").length() > 0 && getRequestParameterString("password").equals(getRequestParameterString("confirmPassword"))) {
                    if (us != null) {
                        currentUser.setPassword(us.encryptPassword(getRequestParameterString("username"), getRequestParameterString("password")));
                    } else {
                        currentUser.setPassword(StringUtil.md5Base16(getRequestParameterString("password")));
                    }
                    currentUser.setConfirmPassword(getRequestParameterString("password"));
                }
            }

            if (currentUser.getUsername().equals(getRequestParameterString("username"))) {
                userDao.updateUser(currentUser);
                if (us != null) {
                    us.updateUserProfilePostProcessing(currentUser);
                }

                setAlertMessage(getPropertyString("message"));
                setProperty("headerTitle", getPropertyString("label"));
                if (getPropertyString("redirectURL") != null && !getPropertyString("redirectURL").isEmpty()) {
                    setProperty("view", "redirect");
                    boolean redirectToParent = "Yes".equals(getPropertyString("showInPopupDialog"));
                    setRedirectUrl(getPropertyString("redirectURL"), redirectToParent);
                } else {
                    setProperty("saved", "true");
                    viewForm(null);
                }
            }
        } else {
            viewForm(currentUser);
        }
    }

    @Override
    public String getCategory() {
        return UserviewBuilderPalette.CATEGORY_GENERAL;
    }
}

Output:
【漏洞类型】跨站脚本攻击（XSS）

【严重性】Medium

【漏洞摘要】在`getUserProfileMenu`方法中，用户输入的`label`属性没有经过严格的HTML转义处理，而是使用了`StringUtil.stripHtmlRelaxed`方法进行宽松的HTML清理。虽然这在一定程度上减少了XSS的风险，但在某些情况下可能仍然允许恶意脚本的执行。此外，在`submitForm`方法中，用户输入的`firstName`和`lastName`字段没有进行HTML转义处理，可能会被用于生成HTML内容并暴露于XSS攻击中。

【关键代码模式】
1. `StringUtil.stripHtmlRelaxed`：用于对用户输入的`label`属性进行宽松的HTML清理。
2. `getRequestParameterString`：用于获取用户输入的参数，如`firstName`、`lastName`等。
3. HTML生成：在生成HTML内容时，直接使用用户输入的数据，如`label`、`firstName`、`lastName`等。

【修复方法说明】通过使用`StringUtil.stripAllHtmlTag`方法对用户输入的`firstName`和`lastName`字段进行严格的HTML清理，以防止恶意脚本的嵌入和执行。


Instruction:
作为 Java 安全专家，检测此代码中的安全漏洞：
## 内容1
### 文件路径：
src/org/w3c/unicorn/response/impl/ValidatorNuMessage.java
### 代码内容：
// Author: Thomas Gambet
// (c) COPYRIGHT MIT, ERCIM and Keio, 2010.
// Please first read the full copyright statement in file COPYRIGHT.html
package org.w3c.unicorn.response.impl;

import java.util.ArrayList;
import java.util.List;
import javax.json.JsonObject;

import org.w3c.unicorn.response.Context;
import org.w3c.unicorn.response.Message;

public class ValidatorNuMessage implements Message {

	private List<Context> contexts = new ArrayList<Context>();

	private String description;

	private String title;

	private int level;

	private int type;

	private String uri;

	private String group;

	private String lang;

    public ValidatorNuMessage(JsonObject jsonMessage, String uri) {
        this.uri = uri;
      String respType = jsonMessage.getString("type");
      switch(respType) {
      case "info":
          type = Message.INFO;
          try {
              String subType  = jsonMessage.getString("subtype");
              if (subType == "warning") {
                  type = Message.WARNING;
              }
          } catch(NullPointerException e) {
              // No subtype, don't do anything
          }
          break;
      case "error":
          type = Message.ERROR;
          break;
      }

      title = jsonMessage.getString("message").replace("&", "&").replace("<", "<").replace(">", ">").replace("'", "'").replace("\"", """);

      contexts.add(new ValidatorNuContext(jsonMessage, uri));
	}

	public List<Context> getContexts() {
		return contexts;
	}

	public String getDescription() {
		return description;
	}

	public int getLevel() {
		return level;
	}

	public String getTitle() {
		return title;
	}

	public int getType() {
		return type;
	}

	public String getURI() {
		return uri;
	}

	public void setURI(String uri) {
		this.uri = uri;
	}

	public String getGroupName() {
		return group;
	}

	public void setGroupName(String group) {
		this.group = group;
	}

	public String getLang() {
		return lang;
	}
}

Output:
【漏洞类型】跨站脚本（XSS）漏洞
【严重性】High
【漏洞摘要】原始代码中存在XSS漏洞，具体表现为在设置`title`属性时，直接使用了从`jsonMessage`中获取的`"message"`字符串，但并未对其进行HTML转义。这使得攻击者可以通过在`"message"`字段中注入恶意的HTML代码，从而在用户界面中执行恶意脚本。
【关键代码模式】`jsonMessage.getString("message")` 和 直接赋值给`title`。
【修复方法说明】修复方法通过在设置`title`属性时，对获取的`"message"`字符串进行了HTML转义，解决了XSS漏洞问题。最佳实践是始终对用户输入或从外部来源获取的任何内容进行适当的转义处理，以防止潜在的XSS攻击。