--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/test/tools/javac/TestBootstrapMethodsCount.java Mon Aug 24 13:15:12 2015 +0100
@@ -0,0 +1,236 @@
+/*
+ * Copyright (c) 2012, 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 8129547
+ * @summary Excess entries in BootstrapMethods with the same (bsm, bsmKind, bsmStaticArgs), but different dynamicArgs
+ * @library lib
+ * @modules jdk.jdeps/com.sun.tools.classfile
+ * jdk.compiler/com.sun.tools.javac.api
+ * jdk.compiler/com.sun.tools.javac.code
+ * jdk.compiler/com.sun.tools.javac.jvm
+ * jdk.compiler/com.sun.tools.javac.tree
+ * jdk.compiler/com.sun.tools.javac.util
+ * @build JavacTestingAbstractThreadedTest
+ * @run main/othervm TestBootstrapMethodsCount
+ */
+
+import java.io.File;
+import java.net.URI;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Locale;
+
+import javax.tools.Diagnostic;
+import javax.tools.JavaFileObject;
+import javax.tools.SimpleJavaFileObject;
+
+import com.sun.source.tree.MethodInvocationTree;
+import com.sun.source.tree.MethodTree;
+import com.sun.source.util.TaskEvent;
+import com.sun.source.util.TaskListener;
+import com.sun.source.util.TreeScanner;
+
+import com.sun.tools.classfile.Attribute;
+import com.sun.tools.classfile.BootstrapMethods_attribute;
+import com.sun.tools.classfile.ClassFile;
+
+import com.sun.tools.javac.api.JavacTaskImpl;
+import com.sun.tools.javac.code.Symbol;
+import com.sun.tools.javac.code.Symbol.MethodSymbol;
+import com.sun.tools.javac.code.Symtab;
+import com.sun.tools.javac.code.Types;
+import com.sun.tools.javac.tree.JCTree.JCMethodInvocation;
+import com.sun.tools.javac.tree.JCTree.JCMethodDecl;
+import com.sun.tools.javac.tree.JCTree.JCIdent;
+import com.sun.tools.javac.util.Context;
+import com.sun.tools.javac.util.Names;
+
+import static com.sun.tools.javac.jvm.ClassFile.*;
+
+public class TestBootstrapMethodsCount
+ extends JavacTestingAbstractThreadedTest
+ implements Runnable {
+
+
+ public static void main(String... args) throws Exception {
+ pool.execute(new TestBootstrapMethodsCount());
+ checkAfterExec();
+ }
+
+ DiagChecker dc;
+
+ TestBootstrapMethodsCount() {
+ dc = new DiagChecker();
+ }
+
+ public void run() {
+ int id = checkCount.incrementAndGet();
+ JavaSource source = new JavaSource(id);
+ JavacTaskImpl ct = (JavacTaskImpl)comp.getTask(null, fm.get(), dc,
+ Arrays.asList("-g"), null, Arrays.asList(source));
+ Context context = ct.getContext();
+ Symtab syms = Symtab.instance(context);
+ Names names = Names.instance(context);
+ Types types = Types.instance(context);
+ ct.addTaskListener(new Indifier(syms, names, types));
+ try {
+ ct.generate();
+ } catch (Throwable t) {
+ t.printStackTrace();
+ throw new AssertionError(
+ String.format("Error thrown when compiling following code\n%s",
+ source.source));
+ }
+ if (dc.diagFound) {
+ throw new AssertionError(
+ String.format("Diags found when compiling following code\n%s\n\n%s",
+ source.source, dc.printDiags()));
+ }
+ verifyBytecode(id);
+ }
+
+ void verifyBytecode(int id) {
+ File compiledTest = new File(String.format("Test%d.class", id));
+ try {
+ ClassFile cf = ClassFile.read(compiledTest);
+ BootstrapMethods_attribute bsm_attr =
+ (BootstrapMethods_attribute)cf
+ .getAttribute(Attribute.BootstrapMethods);
+ int length = bsm_attr.bootstrap_method_specifiers.length;
+ if (length != 1) {
+ throw new Error("Bad number of method specifiers " +
+ "in BootstrapMethods attribute: " + length);
+ }
+ } catch (Exception e) {
+ e.printStackTrace();
+ throw new Error("error reading " + compiledTest +": " + e);
+ }
+ }
+
+ class JavaSource extends SimpleJavaFileObject {
+
+ static final String source_template = "import java.lang.invoke.*;\n" +
+ "class Bootstrap {\n" +
+ " public static CallSite bsm(MethodHandles.Lookup lookup, " +
+ "String name, MethodType methodType) {\n" +
+ " return null;\n" +
+ " }\n" +
+ "}\n" +
+ "class Test#ID {\n" +
+ " void m1() { }\n" +
+ " void m2(Object arg1) { }\n" +
+ " void test1() {\n" +
+ " Object o = this; // marker statement \n" +
+ " m1();\n" +
+ " }\n" +
+ " void test2(Object arg1) {\n" +
+ " Object o = this; // marker statement \n" +
+ " m2(arg1);\n" +
+ " }\n" +
+ "}";
+
+ String source;
+
+ JavaSource(int id) {
+ super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
+ source = source_template.replace("#ID", String.valueOf(id));
+ }
+
+ @Override
+ public CharSequence getCharContent(boolean ignoreEncodingErrors) {
+ return source;
+ }
+ }
+
+ class Indifier extends TreeScanner<Void, Void> implements TaskListener {
+
+ MethodSymbol bsm;
+ Symtab syms;
+ Names names;
+ Types types;
+
+ Indifier(Symtab syms, Names names, Types types) {
+ this.syms = syms;
+ this.names = names;
+ this.types = types;
+ }
+
+ @Override
+ public void started(TaskEvent e) {
+ //do nothing
+ }
+
+ @Override
+ public void finished(TaskEvent e) {
+ if (e.getKind() == TaskEvent.Kind.ANALYZE) {
+ scan(e.getCompilationUnit(), null);
+ }
+ }
+
+ @Override
+ public Void visitMethodInvocation(MethodInvocationTree node, Void p) {
+ super.visitMethodInvocation(node, p);
+ JCMethodInvocation apply = (JCMethodInvocation)node;
+ JCIdent ident = (JCIdent)apply.meth;
+ Symbol oldSym = ident.sym;
+ if (!oldSym.isConstructor()) {
+ ident.sym = new Symbol.DynamicMethodSymbol(oldSym.name,
+ oldSym.owner, REF_invokeStatic, bsm, oldSym.type, new Object[0]);
+ }
+ return null;
+ }
+
+ @Override
+ public Void visitMethod(MethodTree node, Void p) {
+ super.visitMethod(node, p);
+ if (node.getName().toString().equals("bsm")) {
+ bsm = ((JCMethodDecl)node).sym;
+ }
+ return null;
+ }
+ }
+
+ static class DiagChecker
+ implements javax.tools.DiagnosticListener<JavaFileObject> {
+
+ boolean diagFound;
+ ArrayList<String> diags = new ArrayList<>();
+
+ public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
+ diags.add(diagnostic.getMessage(Locale.getDefault()));
+ diagFound = true;
+ }
+
+ String printDiags() {
+ StringBuilder buf = new StringBuilder();
+ for (String s : diags) {
+ buf.append(s);
+ buf.append("\n");
+ }
+ return buf.toString();
+ }
+ }
+
+}