/* * Copyright (c) 2026, Google LLC and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code 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 General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* * @test * @summary test lambda deserialization for Object method references on interfaces * @library /tools/lib * @modules jdk.compiler/com.sun.tools.javac.api * jdk.compiler/com.sun.tools.javac.main * jdk.jdeps/com.sun.tools.javap * @build toolbox.ToolBox toolbox.JavacTask * @compile/ref=SerializableObjectMethodReferencesOnInterfaces.out -XDrawDiagnostics --debug=dumpLambdaDeserializationStats SerializableObjectMethodReferencesOnInterfaces.java */ import java.io.Serializable; import java.lang.classfile.*; public class SerializableObjectMethodReferencesOnInterfaces { static class Test { interface I1 extends Serializable {} interface I2 extends I1 { @Override public int hashCode(); } interface F extends Serializable { R apply(T t); } enum E { ONE } void f() throws Exception { F f1 = I1::hashCode; F f2 = I2::hashCode; F f3 = E::hashCode; F f4 = Object::hashCode; } } }