Mergejdk7-b102

14 files changed, 751 insertions, 12 deletions

diff --git a/src/share/classes/com/sun/tools/javac/code/Kinds.java b/src/share/classes/com/sun/tools/javac/code/Kinds.java
index 282f315b..5abde8de 100644
--- a/src/share/classes/com/sun/tools/javac/code/Kinds.java
+++ b/src/share/classes/com/sun/tools/javac/code/Kinds.java
@@ -92,7 +92,7 @@ public class Kinds {
     public static final int ABSENT_TYP   = ERRONEOUS+8; // missing type
 
     public enum KindName implements Formattable {
-        ANNOTATION("kindname.interface"),
+        ANNOTATION("kindname.annotation"),
         CONSTRUCTOR("kindname.constructor"),
         INTERFACE("kindname.interface"),
         ENUM("kindname.enum"),
diff --git a/src/share/classes/com/sun/tools/javac/comp/Check.java b/src/share/classes/com/sun/tools/javac/comp/Check.java
index 944ddc8f..09bf0bf0 100644
--- a/src/share/classes/com/sun/tools/javac/comp/Check.java
+++ b/src/share/classes/com/sun/tools/javac/comp/Check.java
@@ -563,7 +563,7 @@ public class Check {
             while (args.nonEmpty()) {
                 if (args.head.tag == WILDCARD)
                     return typeTagError(pos,
-                                        Log.getLocalizedString("type.req.exact"),
+                                        diags.fragment("type.req.exact"),
                                         args.head);
                 args = args.tail;
             }
diff --git a/src/share/classes/com/sun/tools/javac/comp/Lower.java b/src/share/classes/com/sun/tools/javac/comp/Lower.java
index 5e04da27..44435b2d 100644
--- a/src/share/classes/com/sun/tools/javac/comp/Lower.java
+++ b/src/share/classes/com/sun/tools/javac/comp/Lower.java
@@ -674,6 +674,40 @@ public class Lower extends TreeTranslator {
         return rs.resolveInternalField(pos, attrEnv, qual, name);
     }
 
+    /** Anon inner classes are used as access constructor tags.
+     * accessConstructorTag will use an existing anon class if one is available,
+     * and synthethise a class (with makeEmptyClass) if one is not available.
+     * However, there is a small possibility that an existing class will not
+     * be generated as expected if it is inside a conditional with a constant
+     * expression. If that is found to be the case, create an empty class here.
+     */
+    private void checkAccessConstructorTags() {
+        for (List<ClassSymbol> l = accessConstrTags; l.nonEmpty(); l = l.tail) {
+            ClassSymbol c = l.head;
+            if (isTranslatedClassAvailable(c))
+                continue;
+            // Create class definition tree.
+            JCClassDecl cdef = make.ClassDef(
+                make.Modifiers(STATIC | SYNTHETIC), names.empty,
+                List.<JCTypeParameter>nil(),
+                null, List.<JCExpression>nil(), List.<JCTree>nil());
+            cdef.sym = c;
+            cdef.type = c.type;
+            // add it to the list of classes to be generated
+            translated.append(cdef);
+        }
+    }
+    // where
+    private boolean isTranslatedClassAvailable(ClassSymbol c) {
+        for (JCTree tree: translated) {
+            if (tree.getTag() == JCTree.CLASSDEF
+                    && ((JCClassDecl) tree).sym == c) {
+                return true;
+            }
+        }
+        return false;
+    }
+
 /**************************************************************************
  * Access methods
  *************************************************************************/
@@ -718,6 +752,10 @@ public class Lower extends TreeTranslator {
      */
     private Map<Symbol,MethodSymbol> accessConstrs;
 
+    /** A list of all class symbols used for access constructor tags.
+     */
+    private List<ClassSymbol> accessConstrTags;
+
     /** A queue for all accessed symbols.
      */
     private ListBuffer<Symbol> accessed;
@@ -1138,6 +1176,8 @@ public class Lower extends TreeTranslator {
         ClassSymbol ctag = chk.compiled.get(flatname);
         if (ctag == null)
             ctag = makeEmptyClass(STATIC | SYNTHETIC, topClass);
+        // keep a record of all tags, to verify that all are generated as required
+        accessConstrTags = accessConstrTags.prepend(ctag);
         return ctag;
     }
 
@@ -3394,6 +3434,7 @@ public class Lower extends TreeTranslator {
             accessNums = new HashMap<Symbol,Integer>();
             accessSyms = new HashMap<Symbol,MethodSymbol[]>();
             accessConstrs = new HashMap<Symbol,MethodSymbol>();
+            accessConstrTags = List.nil();
             accessed = new ListBuffer<Symbol>();
             translate(cdef, (JCExpression)null);
             for (List<Symbol> l = accessed.toList(); l.nonEmpty(); l = l.tail)
@@ -3401,6 +3442,7 @@ public class Lower extends TreeTranslator {
             for (EnumMapping map : enumSwitchMap.values())
                 map.translate();
             checkConflicts(this.translated.toList());
+            checkAccessConstructorTags();
             translated = this.translated;
         } finally {
             // note that recursive invocations of this method fail hard
@@ -3420,6 +3462,7 @@ public class Lower extends TreeTranslator {
             accessNums = null;
             accessSyms = null;
             accessConstrs = null;
+            accessConstrTags = null;
             accessed = null;
             enumSwitchMap.clear();
         }
diff --git a/src/share/classes/com/sun/tools/javac/main/JavaCompiler.java b/src/share/classes/com/sun/tools/javac/main/JavaCompiler.java
index e1364422..d65aca9c 100644
--- a/src/share/classes/com/sun/tools/javac/main/JavaCompiler.java
+++ b/src/share/classes/com/sun/tools/javac/main/JavaCompiler.java
@@ -111,14 +111,14 @@ public class JavaCompiler implements ClassReader.SourceCompleter {
             try {
                 versionRB = ResourceBundle.getBundle(versionRBName);
             } catch (MissingResourceException e) {
-                return Log.getLocalizedString("version.resource.missing", System.getProperty("java.version"));
+                return Log.getLocalizedString("version.not.available");
             }
         }
         try {
             return versionRB.getString(key);
         }
         catch (MissingResourceException e) {
-            return Log.getLocalizedString("version.unknown", System.getProperty("java.version"));
+            return Log.getLocalizedString("version.not.available");
         }
     }
 
diff --git a/src/share/classes/com/sun/tools/javac/parser/Scanner.java b/src/share/classes/com/sun/tools/javac/parser/Scanner.java
index 8370605f..c5b2119a 100644
--- a/src/share/classes/com/sun/tools/javac/parser/Scanner.java
+++ b/src/share/classes/com/sun/tools/javac/parser/Scanner.java
@@ -419,7 +419,7 @@ public class Scanner implements Lexer {
                 putChar(ch);
             } else {
                 if (!allowUnderscoresInLiterals) {
-                    lexError("unsupported.underscore", source.name);
+                    lexError("unsupported.underscore.lit", source.name);
                     allowUnderscoresInLiterals = true;
                 }
             }
diff --git a/src/share/classes/com/sun/tools/javac/resources/compiler.properties b/src/share/classes/com/sun/tools/javac/resources/compiler.properties
index 86ad4163..dec8126d 100644
--- a/src/share/classes/com/sun/tools/javac/resources/compiler.properties
+++ b/src/share/classes/com/sun/tools/javac/resources/compiler.properties
@@ -637,6 +637,9 @@ compiler.misc.count.warn=\
 compiler.misc.count.warn.plural=\
     {0} warnings
 
+compiler.misc.version.not.available=\
+    (version info not available)
+
 ## extra output when using -verbose (JavaCompiler)
 
 compiler.misc.verbose.checking.attribution=\
@@ -1036,7 +1039,7 @@ compiler.misc.type.parameter=\
 ## diagnostics whose key ends in ".1"
 compiler.misc.undetermined.type=\
     undetermined type
-ncompiler.misc.type.variable.has.undetermined.type=\
+compiler.misc.type.variable.has.undetermined.type=\
     type variable {0} has undetermined type
 compiler.misc.no.unique.maximal.instance.exists=\
     no unique maximal instance exists for type variable {0} with upper bounds {1}
@@ -1122,6 +1125,8 @@ compiler.misc.kindname.annotation=\
     @interface
 compiler.misc.kindname.constructor=\
     constructor
+compiler.misc.kindname.enum=\
+    enum
 compiler.misc.kindname.interface=\
     interface
 compiler.misc.kindname.static=\
@@ -1256,6 +1261,10 @@ compiler.err.enums.not.supported.in.source=\
     enums are not supported in -source {0}\n\
 (use -source 5 or higher to enable enums)
 
+compiler.err.diamond.not.supported.in.source=\
+    diamond operator is not supported in -source {0}\n\
+(use -source 7 or higher to enable multi-catch statement)
+
 compiler.err.multicatch.not.supported.in.source=\
     multi-catch statement is not supported in -source {0}\n\
 (use -source 7 or higher to enable multi-catch statement)
diff --git a/src/share/classes/javax/lang/model/element/ElementKind.java b/src/share/classes/javax/lang/model/element/ElementKind.java
index 7efda28f..aecf3169 100644
--- a/src/share/classes/javax/lang/model/element/ElementKind.java
+++ b/src/share/classes/javax/lang/model/element/ElementKind.java
@@ -88,7 +88,13 @@ public enum ElementKind {
      * An implementation-reserved element.  This is not the element
      * you are looking for.
      */
-    OTHER;
+    OTHER,
+
+    /**
+     * A resource variable.
+     * @since 1.7
+     */
+    RESOURCE_VARIABLE;
 
 
     /**
diff --git a/test/tools/javac/6917288/GraphicalInstaller.java b/test/tools/javac/6917288/GraphicalInstaller.java
new file mode 100644
index 00000000..9d6d8d53
--- /dev/null
+++ b/test/tools/javac/6917288/GraphicalInstaller.java
@@ -0,0 +1,55 @@
+/*
+ * 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.
+ */
+
+/**
+ * Complex example for the "access constructor tags" issue.
+ * This test causes Lower to evaluate all classes defined in installNext
+ * before they are lowered, thus preventing the use of Lower.classdefs
+ * as a way of determining whether a class has been translated or not.
+ */
+class GraphicalInstaller  {
+    private BackgroundInstaller backgroundInstaller;
+
+    private void installNext() {
+        final Integer x = 0;
+        class X {
+          Object o = new Object() { int y = x; };
+        };
+        new X();
+        if (false) {
+            new Runnable(){
+                public void run() {
+                }
+            };
+        }
+    }
+
+    private void installSuiteCommon() {
+        backgroundInstaller = new BackgroundInstaller();
+    }
+
+    private static class BackgroundInstaller {
+        private BackgroundInstaller() {
+        }
+    }
+}
diff --git a/test/tools/javac/6917288/GraphicalInstallerTest.java b/test/tools/javac/6917288/GraphicalInstallerTest.java
new file mode 100644
index 00000000..48d4a1eb
--- /dev/null
+++ b/test/tools/javac/6917288/GraphicalInstallerTest.java
@@ -0,0 +1,106 @@
+/*
+ * 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 6917288
+ * @summary Unnamed nested class is not generated
+ */
+
+import java.io.*;
+import java.util.*;
+
+public class GraphicalInstallerTest {
+    public static void main(String... args) throws Exception {
+        new GraphicalInstallerTest().run();
+    }
+
+    void run() throws Exception {
+        File testSrc = new File(System.getProperty("test.src"));
+        File classes = new File("classes");
+        classes.mkdirs();
+        List<String> opts = Arrays.asList("-d", classes.getPath());
+        int rc = compile(opts, new File(testSrc, "GraphicalInstaller.java"));
+        if (rc != 0) {
+            error("compilation failed: rc=" + rc);
+            return;
+        }
+
+        check(classes,
+            "GraphicalInstaller$1.class",
+            "GraphicalInstaller$1X$1.class",
+            "GraphicalInstaller$1X.class",
+            "GraphicalInstaller$BackgroundInstaller.class",
+            "GraphicalInstaller.class");
+
+        if (errors > 0)
+            throw new Exception(errors + " errors occurred");
+    }
+
+    /**
+     *  Compile files with given options.
+     *  Display any output from compiler, and return javac return code.
+     */
+    int compile(List<String> opts, File... files) {
+        List<String> args = new ArrayList<String>();
+        args.addAll(opts);
+        for (File f: files)
+            args.add(f.getPath());
+        StringWriter sw = new StringWriter();
+        PrintWriter pw = new PrintWriter(sw);
+        int rc = com.sun.tools.javac.Main.compile(args.toArray(new String[args.size()]), pw);
+        pw.close();
+        String out = sw.toString();
+        if (out.length() > 0)
+            System.err.println(out);
+        return rc;
+    }
+
+    /**
+     *  Check that a directory contains the expected files.
+     */
+    void check(File dir, String... paths) {
+        Set<String> found = new TreeSet<String>(Arrays.asList(dir.list()));
+        Set<String> expect = new TreeSet<String>(Arrays.asList(paths));
+        if (found.equals(expect))
+            return;
+        for (String f: found) {
+            if (!expect.contains(f))
+                error("Unexpected file found: " + f);
+        }
+        for (String e: expect) {
+            if (!found.contains(e))
+                error("Expected file not found: " + e);
+        }
+    }
+
+    /**
+     *  Record an error message.
+     */
+    void error(String msg) {
+        System.err.println(msg);
+        errors++;
+    }
+
+    int errors;
+}
diff --git a/test/tools/javac/6917288/T6917288.java b/test/tools/javac/6917288/T6917288.java
new file mode 100644
index 00000000..684d83b6
--- /dev/null
+++ b/test/tools/javac/6917288/T6917288.java
@@ -0,0 +1,158 @@
+/*
+ * 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 6917288
+ * @summary Unnamed nested class is not generated
+ */
+
+import java.io.*;
+import java.util.*;
+
+public class T6917288 {
+    // refers to kind of reference to an anon inner class that may be generated
+    enum Kind { NONE, FALSE, TRUE, ALWAYS };
+
+    public static void main(String... args) throws Exception {
+        new T6917288().run();
+    }
+
+    void run() throws Exception {
+        for (Kind k: Kind.values()) {
+            test(k);
+        }
+
+        if (errors > 0)
+            throw new Exception(errors + " errors occurred");
+    }
+
+    /**
+     *  Run a test case for Kind k.
+     */
+    void test(Kind k) throws Exception {
+        System.err.println("Test " + (++count) + ": " + k);
+        File testDir = new File("test" + count);
+        File srcDir = new File(testDir, "src");
+        srcDir.mkdirs();
+        File classesDir = new File(testDir, "classes");
+        classesDir.mkdirs();
+
+        List<String> opts = new ArrayList<String>();
+        opts.add("-d");
+        opts.add(classesDir.getPath());
+
+        File f = writeFile(srcDir, k);
+        int rc = compile(opts, f);
+        if (rc != 0) {
+            error("compilation failed: rc=" + rc);
+            return;
+        }
+
+        check(classesDir, "Test.class", "Test$Inner.class", "Test$1.class");
+    }
+
+    /**
+     *  Compile files with given options.
+     *  Display any output from compiler, and return javac return code.
+     */
+    int compile(List<String> opts, File... files) {
+        List<String> args = new ArrayList<String>();
+        args.addAll(opts);
+        for (File f: files)
+            args.add(f.getPath());
+        StringWriter sw = new StringWriter();
+        PrintWriter pw = new PrintWriter(sw);
+        int rc = com.sun.tools.javac.Main.compile(args.toArray(new String[args.size()]), pw);
+        pw.close();
+        String out = sw.toString();
+        if (out.length() > 0)
+            System.err.println(out);
+        return rc;
+    }
+
+    /**
+     *  Check that a directory contains the expected files.
+     */
+    void check(File dir, String... paths) {
+        Set<String> found = new TreeSet<String>(Arrays.asList(dir.list()));
+        Set<String> expect = new TreeSet<String>(Arrays.asList(paths));
+        if (found.equals(expect))
+            return;
+        for (String f: found) {
+            if (!expect.contains(f))
+                error("Unexpected file found: " + f);
+        }
+        for (String e: expect) {
+            if (!found.contains(e))
+                error("Expected file not found: " + e);
+        }
+    }
+
+    /**
+     *  Write source file for test case k.
+     */
+    File writeFile(File dir, Kind k) throws Exception {
+        StringBuilder sb = new StringBuilder();
+        sb.append("public class Test {\n");
+        sb.append("    private Inner inner;\n");
+
+        // generate different cases of an anon inner class
+        if (k != Kind.NONE) {
+            sb.append("    private void m() {\n");
+            sb.append("        ");
+            switch (k) {
+                case FALSE: case TRUE:
+                    sb.append("if (" + k.toString().toLowerCase() + ") ");
+            }
+            sb.append("new Runnable() { public void run() { } };\n");
+            sb.append("    }\n");
+        }
+
+        sb.append("    private void init() {\n");
+        sb.append("        inner = new Inner();\n");
+        sb.append("    }\n");
+        sb.append("\n");
+        sb.append("    private static class Inner {\n");
+        sb.append("        private Inner() {\n");
+        sb.append("        }\n");
+        sb.append("    }\n");
+        sb.append("}\n");
+
+        File f = new File(dir, "Test.java");
+        FileWriter w = new FileWriter(f);
+        w.write(sb.toString());
+        w.close();
+        return f;
+    }
+
+    /**
+     *  Record an error message.
+     */
+    void error(String msg) {
+        System.err.println(msg);
+        errors++;
+    }
+
+    int count;
+    int errors;
+}
diff --git a/test/tools/javac/diags/CheckResourceKeys.java b/test/tools/javac/diags/CheckResourceKeys.java
new file mode 100644
index 00000000..7b60ae68
--- /dev/null
+++ b/test/tools/javac/diags/CheckResourceKeys.java
@@ -0,0 +1,362 @@
+/*
+ * 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 6964768 6964461 6964469 6964487 6964460 6964481
+ * @summary need test program to validate javac resource bundles
+ */
+
+import java.io.*;
+import java.util.*;
+import javax.tools.*;
+import com.sun.tools.classfile.*;
+
+/**
+ * Compare string constants in javac classes against keys in javac resource bundles.
+ */
+public class CheckResourceKeys {
+    /**
+     * Main program.
+     * Options:
+     * -finddeadkeys
+     *      look for keys in resource bundles that are no longer required
+     * -findmissingkeys
+     *      look for keys in resource bundles that are missing
+     *
+     * @throws Exception if invoked by jtreg and errors occur
+     */
+    public static void main(String... args) throws Exception {
+        CheckResourceKeys c = new CheckResourceKeys();
+        if (c.run(args))
+            return;
+
+        if (is_jtreg())
+            throw new Exception(c.errors + " errors occurred");
+        else
+            System.exit(1);
+    }
+
+    static boolean is_jtreg() {
+        return (System.getProperty("test.src") != null);
+    }
+
+    /**
+     * Main entry point.
+     */
+    boolean run(String... args) throws Exception {
+        boolean findDeadKeys = false;
+        boolean findMissingKeys = false;
+
+        if (args.length == 0) {
+            if (is_jtreg()) {
+                findDeadKeys = true;
+                findMissingKeys = true;
+            } else {
+                System.err.println("Usage: java CheckResourceKeys <options>");
+                System.err.println("where options include");
+                System.err.println("  -finddeadkeys      find keys in resource bundles which are no longer required");
+                System.err.println("  -findmissingkeys   find keys in resource bundles that are required but missing");
+                return true;
+            }
+        } else {
+            for (String arg: args) {
+                if (arg.equalsIgnoreCase("-finddeadkeys"))
+                    findDeadKeys = true;
+                else if (arg.equalsIgnoreCase("-findmissingkeys"))
+                    findMissingKeys = true;
+                else
+                    error("bad option: " + arg);
+            }
+        }
+
+        if (errors > 0)
+            return false;
+
+        Set<String> codeStrings = getCodeStrings();
+        Set<String> resourceKeys = getResourceKeys();
+
+        if (findDeadKeys)
+            findDeadKeys(codeStrings, resourceKeys);
+
+        if (findMissingKeys)
+            findMissingKeys(codeStrings, resourceKeys);
+
+        return (errors == 0);
+    }
+
+    /**
+     * Find keys in resource bundles which are probably no longer required.
+     * A key is probably required if there is a string fragment in the code
+     * that is part of the resource key, or if the key is well-known
+     * according to various pragmatic rules.
+     */
+    void findDeadKeys(Set<String> codeStrings, Set<String> resourceKeys) {
+        String[] prefixes = {
+            "compiler.err.", "compiler.warn.", "compiler.note.", "compiler.misc.",
+            "javac."
+        };
+        for (String rk: resourceKeys) {
+            // some keys are used directly, without a prefix.
+            if (codeStrings.contains(rk))
+                continue;
+
+            // remove standard prefix
+            String s = null;
+            for (int i = 0; i < prefixes.length && s == null; i++) {
+                if (rk.startsWith(prefixes[i])) {
+                    s = rk.substring(prefixes[i].length());
+                }
+            }
+            if (s == null) {
+                error("Resource key does not start with a standard prefix: " + rk);
+                continue;
+            }
+
+            if (codeStrings.contains(s))
+                continue;
+
+            // keys ending in .1 are often synthesized
+            if (s.endsWith(".1") && codeStrings.contains(s.substring(0, s.length() - 2)))
+                continue;
+
+            // verbose keys are generated by ClassReader.printVerbose
+            if (s.startsWith("verbose.") && codeStrings.contains(s.substring(8)))
+                continue;
+
+            // mandatory warning messages are synthesized with no characteristic substring
+            if (isMandatoryWarningString(s))
+                continue;
+
+            // check known (valid) exceptions
+            if (knownRequired.contains(rk))
+                continue;
+
+            // check known suspects
+            if (needToInvestigate.contains(rk))
+                continue;
+
+            error("Resource key not found in code: " + rk);
+        }
+    }
+
+    /**
+     * The keys for mandatory warning messages are all synthesized and do not
+     * have a significant recognizable substring to look for.
+     */
+    private boolean isMandatoryWarningString(String s) {
+        String[] bases = { "deprecated", "unchecked", "varargs", "sunapi" };
+        String[] tails = { ".filename", ".filename.additional", ".plural", ".plural.additional", ".recompile" };
+        for (String b: bases) {
+            if (s.startsWith(b)) {
+                String tail = s.substring(b.length());
+                for (String t: tails) {
+                    if (tail.equals(t))
+                        return true;
+                }
+            }
+        }
+        return false;
+    }
+
+    Set<String> knownRequired = new TreeSet<String>(Arrays.asList(
+        // See Resolve.getErrorKey
+        "compiler.err.cant.resolve.args",
+        "compiler.err.cant.resolve.args.params",
+        "compiler.err.cant.resolve.location.args",
+        "compiler.err.cant.resolve.location.args.params",
+        // JavaCompiler, reports #errors and #warnings
+        "compiler.misc.count.error",
+        "compiler.misc.count.error.plural",
+        "compiler.misc.count.warn",
+        "compiler.misc.count.warn.plural",
+        // Used for LintCategory
+        "compiler.warn.lintOption",
+        // Other
+        "compiler.misc.base.membership"                                 // (sic)
+        ));
+
+
+    Set<String> needToInvestigate = new TreeSet<String>(Arrays.asList(
+        "compiler.err.cant.read.file",                      // UNUSED
+        "compiler.err.illegal.self.ref",                    // UNUSED
+        "compiler.err.io.exception",                        // UNUSED
+        "compiler.err.limit.pool.in.class",                 // UNUSED
+        "compiler.err.name.reserved.for.internal.use",      // UNUSED
+        "compiler.err.no.match.entry",                      // UNUSED
+        "compiler.err.not.within.bounds.explain",           // UNUSED
+        "compiler.err.signature.doesnt.match.intf",         // UNUSED
+        "compiler.err.signature.doesnt.match.supertype",    // UNUSED
+        "compiler.err.type.var.more.than.once",             // UNUSED
+        "compiler.err.type.var.more.than.once.in.result",   // UNUSED
+        "compiler.misc.ccf.found.later.version",            // UNUSED
+        "compiler.misc.non.denotable.type",                 // UNUSED
+        "compiler.misc.unnamed.package",                    // should be required, CR 6964147
+        "compiler.misc.verbose.retro",                      // UNUSED
+        "compiler.misc.verbose.retro.with",                 // UNUSED
+        "compiler.misc.verbose.retro.with.list",            // UNUSED
+        "compiler.warn.proc.type.already.exists",           // TODO in JavacFiler
+        "javac.err.invalid.arg",                            // UNUSED ??
+        "javac.opt.arg.class",                              // UNUSED ??
+        "javac.opt.arg.pathname",                           // UNUSED ??
+        "javac.opt.moreinfo",                               // option commented out
+        "javac.opt.nogj",                                   // UNUSED
+        "javac.opt.printflat",                              // option commented out
+        "javac.opt.printsearch",                            // option commented out
+        "javac.opt.prompt",                                 // option commented out
+        "javac.opt.retrofit",                               // UNUSED
+        "javac.opt.s",                                      // option commented out
+        "javac.opt.scramble",                               // option commented out
+        "javac.opt.scrambleall"                             // option commented out
+        ));
+
+    /**
+     * For all strings in the code that look like they might be fragments of
+     * a resource key, verify that a key exists.
+     */
+    void findMissingKeys(Set<String> codeStrings, Set<String> resourceKeys) {
+        for (String cs: codeStrings) {
+            if (cs.matches("[A-Za-z][^.]*\\..*")) {
+                // ignore filenames (i.e. in SourceFile attribute
+                if (cs.matches(".*\\.java"))
+                    continue;
+                // ignore package and class names
+                if (cs.matches("(com|java|javax|sun)\\.[A-Za-z.]+"))
+                    continue;
+                // explicit known exceptions
+                if (noResourceRequired.contains(cs))
+                    continue;
+                // look for matching resource
+                if (hasMatch(resourceKeys, cs))
+                    continue;
+                error("no match for \"" + cs + "\"");
+            }
+        }
+    }
+    // where
+    private Set<String> noResourceRequired = new HashSet<String>(Arrays.asList(
+            // system properties
+            "application.home", // in Paths.java
+            "env.class.path",
+            "line.separator",
+            "user.dir",
+            // file names
+            "ct.sym",
+            "rt.jar",
+            "tools.jar",
+            // -XD option names
+            "process.packages",
+            "ignore.symbol.file",
+            // prefix/embedded strings
+            "compiler.",
+            "compiler.misc.",
+            "count.",
+            "illegal.",
+            "javac.",
+            "verbose."
+    ));
+
+    /**
+     * Look for a resource that ends in this string fragment.
+     */
+    boolean hasMatch(Set<String> resourceKeys, String s) {
+        for (String rk: resourceKeys) {
+            if (rk.endsWith(s))
+                return true;
+        }
+        return false;
+    }
+
+    /**
+     * Get the set of strings from (most of) the javac classfiles.
+     */
+    Set<String> getCodeStrings() throws IOException {
+        Set<String> results = new TreeSet<String>();
+        JavaCompiler c = ToolProvider.getSystemJavaCompiler();
+        JavaFileManager fm = c.getStandardFileManager(null, null, null);
+        String[] pkgs = {
+            "javax.annotation.processing",
+            "javax.lang.model",
+            "javax.tools",
+            "com.sun.source",
+            "com.sun.tools.javac"
+        };
+        for (String pkg: pkgs) {
+            for (JavaFileObject fo: fm.list(StandardLocation.PLATFORM_CLASS_PATH,
+                    pkg, EnumSet.of(JavaFileObject.Kind.CLASS), true)) {
+                String name = fo.getName();
+                // ignore resource files, and files which are not really part of javac
+                if (name.contains("resources")
+                        || name.contains("Launcher.class")
+                        || name.contains("CreateSymbols.class"))
+                    continue;
+                scan(fo, results);
+            }
+        }
+        return results;
+    }
+
+    /**
+     * Get the set of strings from a class file.
+     * Only strings that look like they might be a resource key are returned.
+     */
+    void scan(JavaFileObject fo, Set<String> results) throws IOException {
+        InputStream in = fo.openInputStream();
+        try {
+            ClassFile cf = ClassFile.read(in);
+            for (ConstantPool.CPInfo cpinfo: cf.constant_pool.entries()) {
+                if (cpinfo.getTag() == ConstantPool.CONSTANT_Utf8) {
+                    String v = ((ConstantPool.CONSTANT_Utf8_info) cpinfo).value;
+                    if (v.matches("[A-Za-z0-9-_.]+"))
+                        results.add(v);
+                }
+            }
+        } catch (ConstantPoolException ignore) {
+        } finally {
+            in.close();
+        }
+    }
+
+    /**
+     * Get the set of keys from the javac resource bundles.
+     */
+    Set<String> getResourceKeys() {
+        Set<String> results = new TreeSet<String>();
+        for (String name : new String[]{"javac", "compiler"}) {
+            ResourceBundle b =
+                    ResourceBundle.getBundle("com.sun.tools.javac.resources." + name);
+            results.addAll(b.keySet());
+        }
+        return results;
+    }
+
+    /**
+     * Report an error.
+     */
+    void error(String msg) {
+        System.err.println("Error: " + msg);
+        errors++;
+    }
+
+    int errors;
+}
diff --git a/test/tools/javac/generics/6946618/T6946618c.java b/test/tools/javac/generics/6946618/T6946618c.java
index 034ecb5e..26538c55 100644
--- a/test/tools/javac/generics/6946618/T6946618c.java
+++ b/test/tools/javac/generics/6946618/T6946618c.java
@@ -1,6 +1,6 @@
 /*
  * @test /nodynamiccopyright/
- * @bug     6946618
+ * @bug     6946618 6968497
  * @summary sqe test fails: javac/generics/NewOnTypeParm  in pit jdk7 b91 in all platforms.
  * @author  mcimadamore
  * @compile/fail/ref=T6946618c.out -XDrawDiagnostics T6946618c.java
diff --git a/test/tools/javac/generics/6946618/T6946618c.out b/test/tools/javac/generics/6946618/T6946618c.out
index 01da79b2..64331a45 100644
--- a/test/tools/javac/generics/6946618/T6946618c.out
+++ b/test/tools/javac/generics/6946618/T6946618c.out
@@ -1,4 +1,4 @@
-T6946618c.java:13:24: compiler.err.type.found.req: ? extends java.lang.String, class or interface without bounds
-T6946618c.java:14:24: compiler.err.type.found.req: ? super java.lang.String, class or interface without bounds
-T6946618c.java:15:24: compiler.err.type.found.req: ?, class or interface without bounds
+T6946618c.java:13:24: compiler.err.type.found.req: ? extends java.lang.String, (compiler.misc.type.req.exact)
+T6946618c.java:14:24: compiler.err.type.found.req: ? super java.lang.String, (compiler.misc.type.req.exact)
+T6946618c.java:15:24: compiler.err.type.found.req: ?, (compiler.misc.type.req.exact)
 3 errors
diff --git a/test/tools/javac/literals/BadUnderscoreLiterals.6.out b/test/tools/javac/literals/BadUnderscoreLiterals.6.out
index 4e9f126a..51892759 100644
--- a/test/tools/javac/literals/BadUnderscoreLiterals.6.out
+++ b/test/tools/javac/literals/BadUnderscoreLiterals.6.out
@@ -1,4 +1,4 @@
-BadUnderscoreLiterals.java:14:17: compiler.err.unsupported.underscore: 1.6
+BadUnderscoreLiterals.java:14:17: compiler.err.unsupported.underscore.lit: 1.6
 BadUnderscoreLiterals.java:18:15: compiler.err.illegal.underscore
 BadUnderscoreLiterals.java:22:19: compiler.err.illegal.underscore
 BadUnderscoreLiterals.java:25:14: compiler.err.unsupported.binary.lit: 1.6