6988407: javac crashes running processor on errant code; it used to print error message

Reviewed-by: darcy

src/share/classes/com/sun/tools/javac/comp/MemberEnter.java

@@ -668,9 +668,9 @@ public class MemberEnter extends JCTree.Visitor implements Completer {
     public void visitTree(JCTree tree) {
     }
 
-
     public void visitErroneous(JCErroneous tree) {
-        memberEnter(tree.errs, env);
+        if (tree.errs != null)
+            memberEnter(tree.errs, env);
     }
 
     public Env<AttrContext> getMethodEnv(JCMethodDecl tree, Env<AttrContext> env) {

src/share/classes/com/sun/tools/javac/main/JavaCompiler.java

@@ -511,7 +511,7 @@ public class JavaCompiler implements ClassReader.SourceCompleter {
 
     protected boolean shouldStop(CompileState cs) {
         if (shouldStopPolicy == null)
-            return (errorCount() > 0);
+            return (errorCount() > 0 || unrecoverableError());
         else
             return cs.ordinal() > shouldStopPolicy.ordinal();
     }

test/tools/javac/api/6406133/Erroneous.java

+/*
+ * Copyright (c) 2008, 2010, 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.
+ */
+
 @Deprecated
-class A {
-    class A {}
+class A extends Missing {
 }

test/tools/javac/processing/errors/TestParseErrors/ParseErrors.java

+/*
+ * Copyright (c) 2010, 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.
+ */
+
+import java.util.List;
+import java.util.Vector;
+
+class test {
+
+    public String m(List<? extends String> v, String s ) {
+        return null;
+    }
+
+    public String m2(Vector<String> vs, String s) {
+        return null;
+    }
+
+    public void m3(testclass<String>,
+}
+
+class testclass<T> {
+    T t;
+}

test/tools/javac/processing/errors/TestParseErrors/TestParseErrors.java

+/*
+ * Copyright (c) 2010, 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 6988407
+ * @summary javac crashes running processor on errant code; it used to print error message
+ * @library ../../../lib
+ * @build JavacTestingAbstractProcessor TestParseErrors
+ * @compile/fail/ref=TestParseErrors.out -XDrawDiagnostics -proc:only -processor TestParseErrors ParseErrors.java
+ */
+
+import java.util.*;
+import javax.annotation.processing.*;
+import javax.lang.model.element.*;
+
+public class TestParseErrors extends JavacTestingAbstractProcessor {
+
+    public boolean process(Set<? extends TypeElement> annotations,
+                           RoundEnvironment roundEnvironment) {
+        throw new Error("Should not be called");
+    }
+}

test/tools/javac/processing/errors/TestParseErrors/TestParseErrors.out

+ParseErrors.java:37:37: compiler.err.expected: token.identifier
+ParseErrors.java:38:1: compiler.err.illegal.start.of.type
+ParseErrors.java:38:2: compiler.err.expected: ')'
+ParseErrors.java:40:6: compiler.err.expected: ';'
+ParseErrors.java:40:20: compiler.err.illegal.start.of.type
+ParseErrors.java:41:5: compiler.err.expected: '('
+ParseErrors.java:41:8: compiler.err.expected: token.identifier
+7 errors