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/*
* Copyright (c) 2017, 2021, 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 8174954
* @library /test/lib
* @modules java.base/jdk.internal.org.objectweb.asm
* @compile -XDignore.symbol.file BSMCalledTwice.java
* @run main BSMCalledTwice
*/
/*
* @test
* @bug 8262134
* @library /test/lib
* @requires vm.debug
* @modules java.base/jdk.internal.org.objectweb.asm
* @compile -XDignore.symbol.file BSMCalledTwice.java
* @run main/othervm -Xcomp -XX:CompileCommand=compileonly,TestC::* -XX:+DeoptimizeALot -XX:+VerifyStack BSMCalledTwice
*/
import java.io.File;
import java.io.FileOutputStream;
import java.util.*;
import static jdk.internal.org.objectweb.asm.Opcodes.*;
import jdk.internal.org.objectweb.asm.*;
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.process.OutputAnalyzer;
// BSMCalledTwice generates a class file named "TestC.class" that contains
// bytecodes that represent the following program
//
// public class TestC {
// public static void main(java.lang.String[] arg) {
// for (int i=0; i < 2; i++) {
// try {
// String f = "friend";
//
// // The "hello " + f in the following statement produces an
// // invokedynamic with a BSM of
// // StringConcatFactory.java/makeConcatWithConstants.
// // The ASM below erroneously puts 2 static arguments, "hello "
// // and "goodbye" on the stack for the BSM. Causing a exception to
// // be thrown when creatingthe CallSite object.
// System.out.println("hello " + f); <--------------- invokedynamic
//
// } catch (Error e) {
// System.out.println("Caught Error:");
// System.out.println(e.getMessage());
// e.printStackTrace();
// }
// }
// }
// }
//
public class BSMCalledTwice implements Opcodes {
static final String classTestCName = "TestC";
public static int count_makeSite(String text) {
int count = 0;
String text_ptr = text;
while (text_ptr.indexOf("makeSite") != -1) {
text_ptr = text_ptr.substring(text_ptr.indexOf("makeSite") + 1);
count++;
}
return count;
}
public static void main(String[] args) throws Exception {
ClassLoader cl = new ClassLoader() {
public Class<?> loadClass(String name) throws ClassNotFoundException {
if (findLoadedClass(name) != null) {
return findLoadedClass(name);
}
if (classTestCName.equals(name)) {
byte[] classFile = null;
try {
classFile = dumpTestC();
} catch (Exception e) {
}
return defineClass(classTestCName, classFile, 0, classFile.length);
}
return super.loadClass(name);
}
};
cl.loadClass(classTestCName);
ProcessBuilder pb = ProcessTools.createTestJvm("-cp", ".", classTestCName);
OutputAnalyzer output = new OutputAnalyzer(pb.start());
String test_output = output.getOutput();
if (test_output == null) {
throw new RuntimeException("Test failed, null test output");
}
// "makeSite" is currently listed twice in the exception stacks for each
// failing call to the BootstrapMethod. So more that two calls means
// that the BootstrapMethod was called more than once.
int count = count_makeSite(test_output);
if (count < 1 || count > 2) {
throw new RuntimeException("Test failed, bad number of calls to BootstrapMethod");
}
output.shouldHaveExitValue(0);
}
public static byte[] dumpTestC () throws Exception {
ClassWriter cw = new ClassWriter(0);
FieldVisitor fv;
MethodVisitor mv;
AnnotationVisitor av0;
cw.visit(53, ACC_PUBLIC + ACC_SUPER, classTestCName, null, "java/lang/Object", null);
cw.visitInnerClass("java/lang/invoke/MethodHandles$Lookup",
"java/lang/invoke/MethodHandles", "Lookup",
ACC_PUBLIC + ACC_FINAL + ACC_STATIC);
{
mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
mv.visitInsn(RETURN);
mv.visitMaxs(1, 1);
mv.visitEnd();
}
{
mv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "main", "([Ljava/lang/String;)V", null, null);
mv.visitCode();
Label l0 = new Label();
Label l1 = new Label();
Label l2 = new Label();
mv.visitTryCatchBlock(l0, l1, l2, "java/lang/Error");
mv.visitInsn(ICONST_0);
mv.visitVarInsn(ISTORE, 1);
Label l3 = new Label();
mv.visitLabel(l3);
mv.visitFrame(Opcodes.F_APPEND,1, new Object[] {Opcodes.INTEGER}, 0, null);
mv.visitVarInsn(ILOAD, 1);
mv.visitInsn(ICONST_2);
Label l4 = new Label();
mv.visitJumpInsn(IF_ICMPGE, l4);
mv.visitLabel(l0);
mv.visitLdcInsn("friend");
mv.visitVarInsn(ASTORE, 2);
mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
mv.visitVarInsn(ALOAD, 2);
mv.visitInvokeDynamicInsn("makeConcatWithConstants",
"(Ljava/lang/String;)Ljava/lang/String;",
new Handle(Opcodes.H_INVOKESTATIC,
"java/lang/invoke/StringConcatFactory",
"makeConcatWithConstants",
"(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/invoke/CallSite;"),
new Object[]{"hello \u0001", "goodbye"});
mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V", false);
mv.visitLabel(l1);
Label l5 = new Label();
mv.visitJumpInsn(GOTO, l5);
mv.visitLabel(l2);
mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] {"java/lang/Error"});
mv.visitVarInsn(ASTORE, 2);
mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
mv.visitLdcInsn("Caught Error:");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V", false);
mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
mv.visitVarInsn(ALOAD, 2);
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Error", "getMessage", "()Ljava/lang/String;", false);
mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V", false);
mv.visitVarInsn(ALOAD, 2);
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Error", "printStackTrace", "()V", false);
mv.visitLabel(l5);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
mv.visitIincInsn(1, 1);
mv.visitJumpInsn(GOTO, l3);
mv.visitLabel(l4);
mv.visitFrame(Opcodes.F_CHOP,1, null, 0, null);
mv.visitInsn(RETURN);
mv.visitMaxs(2, 3);
mv.visitEnd();
}
cw.visitEnd();
try(FileOutputStream fos = new FileOutputStream(new File("TestC.class"))) {
fos.write(cw.toByteArray());
}
return cw.toByteArray();
}
}
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