| /* |
| * Copyright (c) 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 8057919 |
| * @summary Class.getSimpleName() should work for non-JLS compliant class names |
| * @modules java.base/jdk.internal.org.objectweb.asm |
| */ |
| import jdk.internal.org.objectweb.asm.*; |
| import static jdk.internal.org.objectweb.asm.Opcodes.*; |
| |
| public class GetSimpleNameTest { |
| static class NestedClass {} |
| class InnerClass {} |
| |
| static Class<?> f1() { |
| class LocalClass {} |
| return LocalClass.class; |
| } |
| |
| public static void main(String[] args) throws Exception { |
| assertEquals(NestedClass.class.getSimpleName(), "NestedClass"); |
| assertEquals( InnerClass.class.getSimpleName(), "InnerClass"); |
| assertEquals( f1().getSimpleName(), "LocalClass"); |
| |
| java.io.Serializable anon = new java.io.Serializable() {}; |
| assertEquals(anon.getClass().getSimpleName(), ""); |
| |
| // Java class names, prepended enclosing class name. |
| testNested("p.Outer$Nested", "p.Outer", "Nested"); |
| testInner( "p.Outer$Inner", "p.Inner", "Inner"); |
| testLocal( "p.Outer$1Local", "p.Outer", "Local"); |
| testAnon( "p.Outer$1", "p.Outer", ""); |
| |
| // Non-Java class names, prepended enclosing class name. |
| testNested("p.$C1$Nested", "p.$C1$", "Nested"); |
| testInner( "p.$C1$Inner", "p.$C1$", "Inner"); |
| testLocal( "p.$C1$Local", "p.$C1$", "Local"); |
| testAnon( "p.$C1$1", "p.$C1$", ""); |
| |
| // Non-Java class names, unrelated class names. |
| testNested("p1.$Nested$", "p2.$C1$", "Nested"); |
| testInner( "p1.$Inner$", "p2.$C1$", "Inner"); |
| testLocal( "p1.$Local$", "p2.$C1$", "Local"); |
| testAnon( "p1.$anon$", "p2.$C1$", ""); |
| } |
| |
| static void testNested(String innerName, String outerName, String simpleName) throws Exception { |
| BytecodeGenerator bg = new BytecodeGenerator(innerName, outerName, simpleName); |
| CustomCL cl = new CustomCL(innerName, outerName, bg.getNestedClasses(true), bg.getNestedClasses(false)); |
| assertEquals(cl.loadClass(innerName).getSimpleName(), simpleName); |
| } |
| |
| static void testInner(String innerName, String outerName, String simpleName) throws Exception { |
| BytecodeGenerator bg = new BytecodeGenerator(innerName, outerName, simpleName); |
| CustomCL cl = new CustomCL(innerName, outerName, bg.getInnerClasses(true), bg.getInnerClasses(false)); |
| assertEquals(cl.loadClass(innerName).getSimpleName(), simpleName); |
| } |
| |
| static void testLocal(String innerName, String outerName, String simpleName) throws Exception { |
| BytecodeGenerator bg = new BytecodeGenerator(innerName, outerName, simpleName); |
| CustomCL cl = new CustomCL(innerName, outerName, bg.getLocalClasses(true), bg.getLocalClasses(false)); |
| assertEquals(cl.loadClass(innerName).getSimpleName(), simpleName); |
| } |
| |
| static void testAnon(String innerName, String outerName, String simpleName) throws Exception { |
| BytecodeGenerator bg = new BytecodeGenerator(innerName, outerName, simpleName); |
| CustomCL cl = new CustomCL(innerName, outerName, bg.getAnonymousClasses(true), bg.getAnonymousClasses(false)); |
| assertEquals(cl.loadClass(innerName).getSimpleName(), simpleName); |
| } |
| |
| static void assertEquals(Object o1, Object o2) { |
| if (!java.util.Objects.equals(o1, o2)) { |
| throw new AssertionError(o1 + " != " + o2); |
| } |
| } |
| |
| static class CustomCL extends ClassLoader { |
| final String innerName; |
| final String outerName; |
| |
| final byte[] innerClassFile; |
| final byte[] outerClassFile; |
| |
| CustomCL(String innerName, String outerName, byte[] innerClassFile, byte[] outerClassFile) { |
| this.innerName = innerName; |
| this.outerName = outerName; |
| this.innerClassFile = innerClassFile; |
| this.outerClassFile = outerClassFile; |
| } |
| @Override |
| protected Class<?> findClass(String name) throws ClassNotFoundException { |
| if (innerName.equals(name)) { |
| return defineClass(innerName, innerClassFile, 0, innerClassFile.length); |
| } else if (outerName.equals(name)) { |
| return defineClass(outerName, outerClassFile, 0, outerClassFile.length); |
| } else { |
| throw new ClassNotFoundException(name); |
| } |
| } |
| } |
| |
| static class BytecodeGenerator { |
| final String innerName; |
| final String outerName; |
| final String simpleName; |
| |
| BytecodeGenerator(String innerName, String outerName, String simpleName) { |
| this.innerName = intl(innerName); |
| this.outerName = intl(outerName); |
| this.simpleName = simpleName; |
| } |
| |
| static String intl(String name) { return name.replace('.', '/'); } |
| |
| static void makeDefaultCtor(ClassWriter cw) { |
| MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null); |
| mv.visitCode(); |
| mv.visitVarInsn(ALOAD, 0); |
| mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false); |
| mv.visitInsn(RETURN); |
| mv.visitMaxs(1, 1); |
| mv.visitEnd(); |
| } |
| |
| void makeCtxk(ClassWriter cw, boolean isInner) { |
| if (isInner) { |
| cw.visitOuterClass(outerName, "f", "()V"); |
| } else { |
| MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "f", "()V", null, null); |
| mv.visitCode(); |
| mv.visitInsn(RETURN); |
| mv.visitMaxs(0, 0); |
| mv.visitEnd(); |
| } |
| } |
| |
| byte[] getNestedClasses(boolean isInner) { |
| String name = (isInner ? innerName : outerName); |
| ClassWriter cw = new ClassWriter(0); |
| cw.visit(V1_7, ACC_PUBLIC + ACC_SUPER, name, null, "java/lang/Object", null); |
| |
| cw.visitInnerClass(innerName, outerName, simpleName, ACC_PUBLIC | ACC_STATIC); |
| |
| makeDefaultCtor(cw); |
| cw.visitEnd(); |
| return cw.toByteArray(); |
| } |
| |
| byte[] getInnerClasses(boolean isInner) { |
| String name = (isInner ? innerName : outerName); |
| ClassWriter cw = new ClassWriter(0); |
| cw.visit(V1_7, ACC_PUBLIC + ACC_SUPER, name, null, "java/lang/Object", null); |
| |
| cw.visitInnerClass(innerName, outerName, simpleName, ACC_PUBLIC); |
| |
| makeDefaultCtor(cw); |
| cw.visitEnd(); |
| return cw.toByteArray(); |
| } |
| |
| byte[] getLocalClasses(boolean isInner) { |
| String name = (isInner ? innerName : outerName); |
| ClassWriter cw = new ClassWriter(0); |
| cw.visit(V1_7, ACC_PUBLIC + ACC_SUPER, name, null, "java/lang/Object", null); |
| |
| cw.visitInnerClass(innerName, null, simpleName, ACC_PUBLIC | ACC_STATIC); |
| makeCtxk(cw, isInner); |
| |
| makeDefaultCtor(cw); |
| cw.visitEnd(); |
| return cw.toByteArray(); |
| } |
| |
| byte[] getAnonymousClasses(boolean isInner) { |
| String name = (isInner ? innerName : outerName); |
| ClassWriter cw = new ClassWriter(0); |
| cw.visit(V1_7, ACC_PUBLIC + ACC_SUPER, name, null, "java/lang/Object", null); |
| |
| cw.visitInnerClass(innerName, null, null, ACC_PUBLIC | ACC_STATIC); |
| makeCtxk(cw, isInner); |
| |
| makeDefaultCtor(cw); |
| cw.visitEnd(); |
| return cw.toByteArray(); |
| } |
| } |
| } |