8042785: javac, bridge methods are not getting the flags from the original method
Reviewed-by: jjg, jlahoda
--- a/langtools/src/share/classes/com/sun/tools/javac/code/Flags.java Wed Jul 05 19:43:07 2017 +0200
+++ b/langtools/src/share/classes/com/sun/tools/javac/code/Flags.java Fri May 30 18:21:05 2014 +0100
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 2014, 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
@@ -296,8 +296,8 @@
ModifierFlags = ((long)StandardFlags & ~INTERFACE) | DEFAULT,
InterfaceMethodMask = ABSTRACT | STATIC | PUBLIC | STRICTFP | DEFAULT,
AnnotationTypeElementMask = ABSTRACT | PUBLIC,
- LocalVarFlags = FINAL | PARAMETER;
-
+ LocalVarFlags = FINAL | PARAMETER,
+ BridgeMethodMask = AccessFlags | FINAL | STRICTFP;
public static Set<Modifier> asModifierSet(long flags) {
Set<Modifier> modifiers = modifierSets.get(flags);
--- a/langtools/src/share/classes/com/sun/tools/javac/comp/TransTypes.java Wed Jul 05 19:43:07 2017 +0200
+++ b/langtools/src/share/classes/com/sun/tools/javac/comp/TransTypes.java Fri May 30 18:21:05 2014 +0100
@@ -253,7 +253,7 @@
// Create a bridge method symbol and a bridge definition without a body.
Type bridgeType = meth.erasure(types);
- long flags = impl.flags() & AccessFlags | SYNTHETIC | BRIDGE |
+ long flags = impl.flags() & BridgeMethodMask | SYNTHETIC | BRIDGE |
(origin.isInterface() ? DEFAULT : 0);
if (hypothetical) flags |= HYPOTHETICAL;
MethodSymbol bridge = new MethodSymbol(flags,
@@ -931,7 +931,7 @@
ClassSymbol c,
ListBuffer<JCTree> bridges) {
Type implErasure = impl.erasure(types);
- long flags = (impl.flags() & AccessFlags) | SYNTHETIC | BRIDGE | OVERRIDE_BRIDGE;
+ long flags = impl.flags() & BridgeMethodMask | SYNTHETIC | BRIDGE | OVERRIDE_BRIDGE;
member = new MethodSymbol(flags, member.name, member.type, c);
JCMethodDecl md = make.MethodDef(member, null);
JCExpression receiver = make.Super(types.supertype(c.type).tsym.erasure(types), c);
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/test/tools/javac/T8042785/FlagsNotCopiedToBridgeMethodTest.java Fri May 30 18:21:05 2014 +0100
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2014, 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 8042785
+ * @summary javac, bridge methods are not getting the flags from the original method
+ * @run main FlagsNotCopiedToBridgeMethodTest
+ */
+
+import java.io.BufferedInputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+import com.sun.tools.classfile.AccessFlags;
+import com.sun.tools.classfile.ClassFile;
+import com.sun.tools.classfile.Method;
+import com.sun.tools.javac.util.Assert;
+
+public class FlagsNotCopiedToBridgeMethodTest {
+
+ public static void main(String[] args) throws Exception {
+ new FlagsNotCopiedToBridgeMethodTest().run();
+ }
+
+ void run() throws Exception {
+ checkClassFile(Paths.get(System.getProperty("test.classes"),
+ this.getClass().getSimpleName() + "$CovariantReturnType.class"));
+ checkClassFile(Paths.get(System.getProperty("test.classes"),
+ this.getClass().getSimpleName() +
+ "$CovariantReturnType$VisibilityChange.class"));
+ }
+
+ void checkClassFile(final Path cfilePath) throws Exception {
+ ClassFile classFile = ClassFile.read(
+ new BufferedInputStream(Files.newInputStream(cfilePath)));
+ for (Method method : classFile.methods) {
+ if (method.access_flags.is(AccessFlags.ACC_BRIDGE)) {
+ Assert.check(method.access_flags.is(AccessFlags.ACC_FINAL | AccessFlags.ACC_STRICT),
+ "bridge method has incorrect flags");
+ }
+ }
+ }
+
+ abstract class T<A,B> {
+ B m(A a){ return null; }
+ }
+
+ class CovariantReturnType extends T<Integer, Integer> {
+ strictfp final Integer m(Integer i) {
+ return i;
+ }
+
+ public class VisibilityChange extends CovariantReturnType {}
+
+ }
+
+}