jodd-proxetta/src/main/java/jodd/asm7/SymbolTable.java
Symbol addConstantMethodHandle(
      final int referenceKind,
      final String owner,
      final String name,
      final String descriptor,
      final boolean isInterface) {
    final int tag = Symbol.CONSTANT_METHOD_HANDLE_TAG;
    // Note that we don't need to include isInterface in the hash computation, because it is
    // redundant with owner (we can't have the same owner with different isInterface values).
    int hashCode = hash(tag, owner, name, descriptor, referenceKind);
    Entry entry = get(hashCode);
    while (entry != null) {
      if (entry.tag == tag
          && entry.hashCode == hashCode
          && entry.data == referenceKind
          && entry.owner.equals(owner)
          && entry.name.equals(name)
          && entry.value.equals(descriptor)) {
        return entry;
      }
      entry = entry.next;
    }
    if (referenceKind <= Opcodes.H_PUTSTATIC) {
      constantPool.put112(tag, referenceKind, addConstantFieldref(owner, name, descriptor).index);
    } else {
      constantPool.put112(
          tag, referenceKind, addConstantMethodref(owner, name, descriptor, isInterface).index);
    }
    return put(
        new Entry(constantPoolCount++, tag, owner, name, descriptor, referenceKind, hashCode));
  }
Symbol addConstantMethodHandle(
      final int referenceKind,
      final String owner,
      final String name,
      final String descriptor,
      final boolean isInterface) {
    final int tag = Symbol.CONSTANT_METHOD_HANDLE_TAG;
    // Note that we don't need to include isInterface in the hash computation, because it is
    // redundant with owner (we can't have the same owner with different isInterface values).
    int hashCode = hash(tag, owner, name, descriptor, referenceKind);
    Entry entry = get(hashCode);
    while (entry != null) {
      if (entry.tag == tag
          && entry.hashCode == hashCode
          && entry.data == referenceKind
          && entry.owner.equals(owner)
          && entry.name.equals(name)
          && entry.value.equals(descriptor)) {
        return entry;
      }
      entry = entry.next;
    }
    if (referenceKind <= Opcodes.H_PUTSTATIC) {
      constantPool.put112(tag, referenceKind, addConstantFieldref(owner, name, descriptor).index);
    } else {
      constantPool.put112(
          tag, referenceKind, addConstantMethodref(owner, name, descriptor, isInterface).index);
    }
    return put(
        new Entry(constantPoolCount++, tag, owner, name, descriptor, referenceKind, hashCode));
  }
Adds a CONSTANT_MethodHandle_info to the constant pool of this symbol table. Does nothing if
the constant pool already contains a similar item.

@param referenceKind one of {@link Opcodes#H_GETFIELD}, {@link Opcodes#H_GETSTATIC}, {@link
Opcodes#H_PUTFIELD}, {@link Opcodes#H_PUTSTATIC}, {@link Opcodes#H_INVOKEVIRTUAL}, {@link
Opcodes#H_INVOKESTATIC}, {@link Opcodes#H_INVOKESPECIAL}, {@link
Opcodes#H_NEWINVOKESPECIAL} or {@link Opcodes#H_INVOKEINTERFACE}.
@param owner the internal name of a class of interface.
@param name a field or method name.
@param descriptor a field or method descriptor.
@param isInterface whether owner is an interface or not.
@return a new or already existing Symbol with the given value.