src/org/nutz/repo/org/objectweb/asm/ClassWriter.java
Item newHandleItem(final int tag, final String owner, final String name,
            final String desc, final boolean itf) {
        key4.set(HANDLE_BASE + tag, owner, name, desc);
        Item result = get(key4);
        if (result == null) {
            if (tag <= Opcodes.H_PUTSTATIC) {
                put112(HANDLE, tag, newField(owner, name, desc));
            } else {
                put112(HANDLE,
                        tag,
                        newMethod(owner, name, desc, itf));
            }
            result = new Item(index++, key4);
            put(result);
        }
        return result;
    }
Item newHandleItem(final int tag, final String owner, final String name,
            final String desc, final boolean itf) {
        key4.set(HANDLE_BASE + tag, owner, name, desc);
        Item result = get(key4);
        if (result == null) {
            if (tag <= Opcodes.H_PUTSTATIC) {
                put112(HANDLE, tag, newField(owner, name, desc));
            } else {
                put112(HANDLE,
                        tag,
                        newMethod(owner, name, desc, itf));
            }
            result = new Item(index++, key4);
            put(result);
        }
        return result;
    }
Adds a handle to the constant pool of the class being build. Does nothing
if the constant pool already contains a similar item. <i>This method is
intended for {@link Attribute} sub classes, and is normally not needed by
class generators or adapters.</i>

@param tag
the kind of this handle. Must be {@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 the field or method owner class.
@param name
the name of the field or method.
@param desc
the descriptor of the field or method.
@param itf
true if the owner is an interface.
@return a new or an already existing method type reference item.