| /* |
| * Copyright (c) 2013, 2015, Oracle 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 |
| * @bug 8023668 |
| * @summary Desugar serializable lambda bodies using more robust naming scheme |
| * @library /tools/lib |
| * @modules jdk.compiler/com.sun.tools.javac.api |
| * jdk.compiler/com.sun.tools.javac.file |
| * jdk.compiler/com.sun.tools.javac.main |
| * jdk.jdeps/com.sun.tools.javap |
| * @build ToolBox |
| * @run main TestSerializedLambdaNameStability |
| */ |
| |
| import java.io.*; |
| import java.lang.reflect.Constructor; |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| import java.nio.file.*; |
| |
| public class TestSerializedLambdaNameStability { |
| |
| final ClassLoader writingClassLoader; |
| final ClassLoader clonedClassLoader; |
| final ClassLoader checkingClassLoader; |
| |
| TestSerializedLambdaNameStability() { |
| writingClassLoader = new TestClassLoader("before"); |
| clonedClassLoader = new TestClassLoader("before"); |
| checkingClassLoader = new TestClassLoader("after"); |
| } |
| |
| public static void main(String... args) throws Exception { |
| new TestSerializedLambdaNameStability().doit("NameOfCapturedArgs", true); |
| new TestSerializedLambdaNameStability().doit("TypesOfCapturedArgs", true); |
| new TestSerializedLambdaNameStability().doit("OrderOfCapturedArgs", true); |
| new TestSerializedLambdaNameStability().doit("VariableAssignmentTarget", false); |
| new TestSerializedLambdaNameStability().doit("TargetName", true); |
| new TestSerializedLambdaNameStability().doit("TargetType", true); |
| } |
| |
| public void doit(String name, boolean expectFail) throws Exception { |
| String iName = "I" + name; |
| String testName = "TEST" + name; |
| Class<?> kw = writingClassLoader.loadClass(testName); |
| Object instw = getInstance(kw); |
| Method mw = getMethod(kw, "write", ObjectOutput.class); |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| try (ObjectOutput out = new ObjectOutputStream(baos)) { |
| mw.invoke(instw, out); |
| } |
| byte[] ser = baos.toByteArray(); |
| |
| // Read and check clone |
| readCheck(iName, testName, clonedClassLoader, ser); |
| System.err.printf("cloned test readCheck %s\n", testName); |
| |
| // Read and check other |
| if (expectFail) { |
| try { |
| readCheck(iName, testName, checkingClassLoader, ser); |
| } catch (InvocationTargetException ite) { |
| Throwable underlying = ite; |
| while (underlying != null && !(underlying instanceof IllegalArgumentException)) { |
| underlying = underlying.getCause(); |
| } |
| if (underlying != null) { |
| if (underlying.getMessage().contains("deserialization")) { |
| System.err.printf("PASS: other test %s got expected exception %s\n", testName, underlying); |
| return; |
| } |
| } |
| System.err.printf("FAIL: other test %s got unexpected exception %s\n", testName, ite); |
| throw new Exception("unexpected exception ", ite); |
| } |
| System.err.printf("FAIL: other test %s expected an exception", testName); |
| throw new Exception("expected an exception" + testName); |
| } else { |
| readCheck(iName, testName, checkingClassLoader, ser); |
| System.err.printf("PASS: other test %s readCheck\n", testName); |
| } |
| } |
| |
| void readCheck(String iName, String testName, ClassLoader loader, byte[] ser) throws Exception { |
| Class<?> k = loader.loadClass(testName); |
| Object inst = getInstance(k); |
| Method mrc = getMethod(k, "readCheck", ObjectInput.class); |
| ByteArrayInputStream bais = new ByteArrayInputStream(ser); |
| try (ObjectInput in = new ObjectInputStream(bais)) { |
| mrc.invoke(inst, in); |
| } |
| } |
| |
| Method getMethod(Class<?> k, String name, Class<?> argTypes) throws Exception { |
| Method meth = k.getDeclaredMethod(name, argTypes); |
| meth.setAccessible(true); |
| return meth; |
| } |
| |
| Object getInstance(Class<?> k) throws Exception { |
| Constructor<?> cons = k.getConstructors()[0]; |
| cons.setAccessible(true); |
| return cons.newInstance(); |
| } |
| |
| static class TestClassLoader extends ClassLoader { |
| static final String compiledDir = System.getProperty("user.dir"); |
| static final String sourceBaseDir = System.getProperty("test.src"); |
| |
| final ToolBox tb = new ToolBox(); |
| final String context; |
| |
| public TestClassLoader(String context) { |
| super(); |
| this.context = context; |
| } |
| |
| @Override |
| public Class findClass(String name) throws ClassNotFoundException { |
| byte[] b; |
| |
| try { |
| b = loadClassData(name); |
| } catch (Throwable th) { |
| // th.printStackTrace(); |
| throw new ClassNotFoundException("Loading error", th); |
| } |
| return defineClass(name, b, 0, b.length); |
| } |
| |
| private byte[] loadClassData(String name) throws Exception { |
| String srcName; |
| if (name.startsWith("TEST")) |
| srcName = name; |
| else if (name.startsWith("I")) |
| srcName = "TEST" + name.substring(1); |
| else |
| throw new Exception("Did not expect to load " + name); |
| Path srcFile = Paths.get(sourceBaseDir, context, srcName + ".java"); |
| tb.new JavacTask() |
| .outdir(compiledDir) |
| .files(srcFile) |
| .run(); |
| Path cfFile = Paths.get(compiledDir, name + ".class"); |
| byte[] bytes = Files.readAllBytes(cfFile); |
| return bytes; |
| } |
| } |
| } |