8022738: doclet should only generate functional interface text if source >= 8

Reviewed-by: jjg

langtools/src/share/classes/com/sun/tools/javadoc/ClassDocImpl.java

@@ -289,7 +289,7 @@ public class ClassDocImpl extends ProgramElementDocImpl implements ClassDoc {
     }
 
     public boolean isFunctionalInterface() {
-        return env.types.isFunctionalInterface(tsym);
+        return env.types.isFunctionalInterface(tsym) && env.source.allowLambda();
     }
 
     /**

langtools/src/share/classes/com/sun/tools/javadoc/DocEnv.java

@@ -123,6 +123,11 @@ public class DocEnv {
      */
     private boolean silent = false;
 
+    /**
+     * The source language version.
+     */
+    protected Source source;
+
     /**
      * Constructor
      *
@@ -144,6 +149,7 @@ public class DocEnv {
 
         // Default.  Should normally be reset with setLocale.
         this.doclocale = new DocLocale(this, "", breakiterator);
+        source = Source.instance(context);
     }
 
     public void setSilent(boolean silent) {

langtools/test/com/sun/javadoc/testLambdaFeature/TestLambdaFeature.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2013, 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
@@ -23,7 +23,7 @@
 
 /*
  * @test
- * @bug      8004893
+ * @bug      8004893 8022738
  * @summary  Make sure that the lambda feature changes work fine in
  *           javadoc.
  * @author   bpatel
@@ -35,11 +35,15 @@
 public class TestLambdaFeature extends JavadocTester {
 
     //Test information.
-    private static final String BUG_ID = "8004893";
+    private static final String BUG_ID = "8004893-8022738";
 
     //Javadoc arguments.
     private static final String[] ARGS = new String[] {
-        "-d", BUG_ID, "-sourcepath", SRC_DIR, "pkg"
+        "-d", BUG_ID, "-sourcepath", SRC_DIR, "pkg", "pkg1"
+    };
+
+    private static final String[] ARGS_1 = new String[] {
+        "-d", BUG_ID + "-2", "-sourcepath", SRC_DIR, "-source", "1.5", "pkg1"
     };
 
     //Input for string search tests.
@@ -60,6 +64,11 @@ public class TestLambdaFeature extends JavadocTester {
             "<a href=\"javascript:show(16);\">Default Methods</a></span>" +
             "<span class=\"tabEnd\">&nbsp;</span></span></caption>"},
         {BUG_ID + FS + "pkg" + FS + "A.html",
+            "<dl>" + NL + "<dt>Functional Interface:</dt>" + NL +
+            "<dd>This is a functional interface and can therefore be used as " +
+            "the assignment target for a lambda expression or method " +
+            "reference.</dd>" + NL + "</dl>"},
+        {BUG_ID + FS + "pkg1" + FS + "FuncInf.html",
             "<dl>" + NL + "<dt>Functional Interface:</dt>" + NL +
             "<dd>This is a functional interface and can therefore be used as " +
             "the assignment target for a lambda expression or method " +
@@ -75,6 +84,10 @@ public class TestLambdaFeature extends JavadocTester {
         {BUG_ID + FS + "pkg" + FS + "B.html",
             "<dl>" + NL + "<dt>Functional Interface:</dt>"}
     };
+    private static final String[][] NEGATED_TEST_1 = {
+        {BUG_ID + "-2" + FS + "pkg1" + FS + "FuncInf.html",
+            "<dl>" + NL + "<dt>Functional Interface:</dt>"}
+    };
 
     /**
      * The entry point of the test.
@@ -83,6 +96,7 @@ public class TestLambdaFeature extends JavadocTester {
     public static void main(String[] args) {
         TestLambdaFeature tester = new TestLambdaFeature();
         run(tester, ARGS, TEST, NEGATED_TEST);
+        run(tester, ARGS_1, NO_TEST, NEGATED_TEST_1);
         tester.printSummary();
     }
 

langtools/test/com/sun/javadoc/testLambdaFeature/pkg1/FuncInf.java

@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2013, 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.
+ */
+
+package pkg1;
+
+public interface FuncInf<V> {
+
+    V call() throws Exception;
+}