--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/runtime/BootstrapMethod/BSMCalledTwice.java Mon Oct 23 10:42:26 2017 -0400
@@ -0,0 +1,198 @@
+/*
+ * Copyright (c) 2017, 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
+ */
+
+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.createJavaProcessBuilder(true, "-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();
+ }
+}