import com.sun.java.util.jar.pack.ConstantPool.MethodHandleEntry; //导入依赖的package包/类
void readBootstrapMethods(Class cls) throws IOException {
    BootstrapMethodEntry[] bsms = new BootstrapMethodEntry[readUnsignedShort()];
    for (int i = 0; i < bsms.length; i++) {
        MethodHandleEntry bsmRef = (MethodHandleEntry) readRef(CONSTANT_MethodHandle);
        Entry[] argRefs = new Entry[readUnsignedShort()];
        for (int j = 0; j < argRefs.length; j++) {
            argRefs[j] = readRef(CONSTANT_LoadableValue);
        }
        bsms[i] = ConstantPool.getBootstrapMethodEntry(bsmRef, argRefs);
    }
    cls.setBootstrapMethods(Arrays.asList(bsms));
}
 

import com.sun.java.util.jar.pack.ConstantPool.MethodHandleEntry; //导入依赖的package包/类
void writeConstantPool() throws IOException {
    Entry[] cpMap = cls.cpMap;
    writeShort(cpMap.length);
    for (int i = 0; i < cpMap.length; i++) {
        Entry e = cpMap[i];
        assert((e == null) == (i == 0 || cpMap[i-1] != null && cpMap[i-1].isDoubleWord()));
        if (e == null)  continue;
        byte tag = e.getTag();
        if (verbose > 2)  Utils.log.fine("   CP["+i+"] = "+e);
        out.write(tag);
        switch (tag) {
            case CONSTANT_Signature:
                throw new AssertionError("CP should have Signatures remapped to Utf8");
            case CONSTANT_Utf8:
                out.writeUTF(e.stringValue());
                break;
            case CONSTANT_Integer:
                out.writeInt(((NumberEntry)e).numberValue().intValue());
                break;
            case CONSTANT_Float:
                float fval = ((NumberEntry)e).numberValue().floatValue();
                out.writeInt(Float.floatToRawIntBits(fval));
                break;
            case CONSTANT_Long:
                out.writeLong(((NumberEntry)e).numberValue().longValue());
                break;
            case CONSTANT_Double:
                double dval = ((NumberEntry)e).numberValue().doubleValue();
                out.writeLong(Double.doubleToRawLongBits(dval));
                break;
            case CONSTANT_Class:
            case CONSTANT_String:
            case CONSTANT_MethodType:
                writeRef(e.getRef(0));
                break;
            case CONSTANT_MethodHandle:
                MethodHandleEntry mhe = (MethodHandleEntry) e;
                out.writeByte(mhe.refKind);
                writeRef(mhe.getRef(0));
                break;
            case CONSTANT_Fieldref:
            case CONSTANT_Methodref:
            case CONSTANT_InterfaceMethodref:
            case CONSTANT_NameandType:
                writeRef(e.getRef(0));
                writeRef(e.getRef(1));
                break;
            case CONSTANT_InvokeDynamic:
                writeRef(e.getRef(0), bsmIndex);
                writeRef(e.getRef(1));
                break;
            case CONSTANT_BootstrapMethod:
                throw new AssertionError("CP should have BootstrapMethods moved to side-table");
            default:
                throw new IOException("Bad constant pool tag "+tag);
        }
    }
}
 

import com.sun.java.util.jar.pack.ConstantPool.MethodHandleEntry; //导入依赖的package包/类
Map<String, MethodHandleEntry> getMethodHandleEntries() {
    return methodHandleEntries;
}