8166367: Missing ExceptionTable attribute in anonymous class constructors

Reviewed-by: vromero

langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Flow.java

@@ -853,9 +853,9 @@ public class Flow {
             List<Type> caughtPrev = caught;
             ListBuffer<FlowPendingExit> pendingExitsPrev = pendingExits;
             Lint lintPrev = lint;
-
+            boolean anonymousClass = tree.name == names.empty;
             pendingExits = new ListBuffer<>();
-            if (tree.name != names.empty) {
+            if (!anonymousClass) {
                 caught = List.nil();
             }
             classDef = tree;
@@ -874,7 +874,7 @@ public class Flow {
 
                 // add intersection of all thrown clauses of initial constructors
                 // to set of caught exceptions, unless class is anonymous.
-                if (tree.name != names.empty) {
+                if (!anonymousClass) {
                     boolean firstConstructor = true;
                     for (List<JCTree> l = tree.defs; l.nonEmpty(); l = l.tail) {
                         if (TreeInfo.isInitialConstructor(l.head)) {
@@ -905,10 +905,11 @@ public class Flow {
                 // Changing the throws clause on the fly is okay here because
                 // the anonymous constructor can't be invoked anywhere else,
                 // and its type hasn't been cached.
-                if (tree.name == names.empty) {
+                if (anonymousClass) {
                     for (List<JCTree> l = tree.defs; l.nonEmpty(); l = l.tail) {
-                        if (TreeInfo.isInitialConstructor(l.head)) {
+                        if (TreeInfo.isConstructor(l.head)) {
                             JCMethodDecl mdef = (JCMethodDecl)l.head;
+                            scan(mdef);
                             mdef.thrown = make.Types(thrown);
                             mdef.sym.type = types.createMethodTypeWithThrown(mdef.sym.type, thrown);
                         }
@@ -918,6 +919,8 @@ public class Flow {
 
                 // process all the methods
                 for (List<JCTree> l = tree.defs; l.nonEmpty(); l = l.tail) {
+                    if (anonymousClass && TreeInfo.isConstructor(l.head))
+                        continue; // there can never be an uncaught exception.
                     if (l.head.hasTag(METHODDEF)) {
                         scan(l.head);
                         errorUncaught();

langtools/test/tools/javac/AnonymousClass/AnonymousCtorExceptionTest.java

@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2016, 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 8166367
+ * @summary Missing ExceptionTable attribute in anonymous class constructors
+ * @library /tools/lib
+ * @modules jdk.compiler/com.sun.tools.javac.api
+ *          jdk.compiler/com.sun.tools.javac.main
+ *          jdk.jdeps/com.sun.tools.javap
+ * @build toolbox.ToolBox toolbox.JavapTask
+ * @run compile -g AnonymousCtorExceptionTest.java
+ * @run main AnonymousCtorExceptionTest
+ */
+
+import java.io.IOException;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+import toolbox.JavapTask;
+import toolbox.Task;
+import toolbox.ToolBox;
+
+public class AnonymousCtorExceptionTest {
+
+    AnonymousCtorExceptionTest() throws IOException {
+    }
+
+    public static void main(String args[]) throws Exception {
+
+        new AnonymousCtorExceptionTest() {
+        };
+
+        ToolBox tb = new ToolBox();
+        Path classPath = Paths.get(ToolBox.testClasses, "AnonymousCtorExceptionTest$1.class");
+        String javapOut = new JavapTask(tb)
+                .options("-v", "-p")
+                .classes(classPath.toString())
+                .run()
+                .getOutput(Task.OutputKind.DIRECT);
+        if (!javapOut.contains("AnonymousCtorExceptionTest$1() throws java.io.IOException;"))
+            throw new AssertionError("Unexpected output " + javapOut);
+        if (!javapOut.contains("Exceptions:"))
+            throw new AssertionError("Unexpected output " + javapOut);
+    }
+}