7022337: repeated warnings about bootclasspath not set

Reviewed-by: mcimadamore

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

@@ -298,6 +298,13 @@ public class JavaCompiler implements ClassReader.SourceCompleter {
      */
     protected JavaCompiler delegateCompiler;
 
+    /**
+     * Command line options.
+     */
+    protected Options options;
+
+    protected Context context;
+
     /**
      * Flag set if any annotation processing occurred.
      **/
@@ -308,8 +315,6 @@ public class JavaCompiler implements ClassReader.SourceCompleter {
      **/
     protected boolean implicitSourceFilesRead;
 
-    protected Context context;
-
     /** Construct a new compiler using a shared context.
      */
     public JavaCompiler(Context context) {
@@ -354,7 +359,7 @@ public class JavaCompiler implements ClassReader.SourceCompleter {
 
         reader.sourceCompleter = this;
 
-        Options options = Options.instance(context);
+        options = Options.instance(context);
 
         verbose       = options.isSet(VERBOSE);
         sourceOutput  = options.isSet(PRINTSOURCE); // used to be -s
@@ -792,6 +797,11 @@ public class JavaCompiler implements ClassReader.SourceCompleter {
             throw new AssertionError("attempt to reuse JavaCompiler");
         hasBeenUsed = true;
 
+        // forcibly set the equivalent of -Xlint:-options, so that no further
+        // warnings about command line options are generated from this point on
+        options.put(XLINT_CUSTOM + "-" + LintCategory.OPTIONS.option, "true");
+        options.remove(XLINT_CUSTOM + LintCategory.OPTIONS.option);
+
         start_msec = now();
 
         try {
@@ -963,7 +973,6 @@ public class JavaCompiler implements ClassReader.SourceCompleter {
     public void initProcessAnnotations(Iterable<? extends Processor> processors) {
         // Process annotations if processing is not disabled and there
         // is at least one Processor available.
-        Options options = Options.instance(context);
         if (options.isSet(PROC, "none")) {
             processAnnotations = false;
         } else if (procEnvImpl == null) {
@@ -1022,7 +1031,6 @@ public class JavaCompiler implements ClassReader.SourceCompleter {
             // If there are no annotation processors present, and
             // annotation processing is to occur with compilation,
             // emit a warning.
-            Options options = Options.instance(context);
             if (options.isSet(PROC, "only")) {
                 log.warning("proc.proc-only.requested.no.procs");
                 todo.clear();
@@ -1108,7 +1116,6 @@ public class JavaCompiler implements ClassReader.SourceCompleter {
     }
 
     boolean explicitAnnotationProcessingRequested() {
-        Options options = Options.instance(context);
         return
             explicitAnnotationProcessingRequested ||
             options.isSet(PROCESSOR) ||

test/tools/javac/options/T7022337.java

+/*
+ * Copyright (c) 2011, 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 7022337
+ * @summary repeated warnings about bootclasspath not set
+ * @library ../lib
+ * @build JavacTestingAbstractProcessor T7022337
+ * @run main T7022337
+ */
+
+import java.io.*;
+import java.util.*;
+import javax.annotation.processing.*;
+import javax.lang.model.element.*;
+import javax.tools.*;
+
+public class T7022337 extends JavacTestingAbstractProcessor {
+    public static void main(String... args) throws Exception {
+        new T7022337().run();
+    }
+
+    void run() throws Exception {
+        String myName = T7022337.class.getSimpleName();
+        File testSrc = new File(System.getProperty("test.src"));
+        File file = new File(testSrc, myName + ".java");
+
+        String out = compile(
+            "-XDrawDiagnostics",
+            "-d", ".",
+            "-processor", myName,
+            "-source", "6", // explicit use of older source value without bootclasspath
+            file.getPath());
+
+        int count = 0;
+        for (String line: out.split("[\r\n]+")) {
+            if (line.contains("compiler.warn.source.no.bootclasspath"))
+                count++;
+        }
+        if (count != 1)
+            throw new Exception("unexpected number of warnings found: " + count + ", expected: 1");
+    }
+
+    String compile(String... args) throws Exception {
+        StringWriter sw = new StringWriter();
+        PrintWriter pw = new PrintWriter(sw);
+        int rc = com.sun.tools.javac.Main.compile(args, pw);
+        pw.close();
+        String out = sw.toString();
+        if (!out.isEmpty())
+            System.err.println(out);
+        if (rc != 0)
+            throw new Exception("compilation failed unexpectedly: rc=" + rc);
+        return out;
+    }
+
+    // ----------
+
+    int round = 0;
+
+    @Override
+    public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
+        round++;
+
+        final int MAXROUNDS = 3;
+        if (round < MAXROUNDS)
+            generate("Gen" + round);
+
+        return true;
+    }
+
+    void generate(String name) {
+        try {
+            JavaFileObject fo = filer.createSourceFile(name);
+            Writer out = fo.openWriter();
+            try {
+                out.write("class " + name + " { }");
+            } finally {
+                out.close();
+            }
+        } catch (IOException e) {
+            throw new Error(e);
+        }
+    }
+}