--- a/langtools/src/share/classes/com/sun/tools/javac/main/JavaCompiler.java	Mon Aug 23 15:13:33 2010 -0700
+++ b/langtools/src/share/classes/com/sun/tools/javac/main/JavaCompiler.java	Tue Aug 24 11:31:00 2010 -0700
@@ -916,6 +916,15 @@
             }
             rootClasses = cdefs.toList();
         }
+
+        // Ensure the input files have been recorded. Although this is normally
+        // done by readSource, it may not have been done if the trees were read
+        // in a prior round of annotation processing, and the trees have been
+        // cleaned and are being reused.
+        for (JCCompilationUnit unit : roots) {
+            inputFiles.add(unit.sourcefile);
+        }
+
         return roots;
     }
 

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/test/tools/javac/processing/options/TestImplicitNone.java	Tue Aug 24 11:31:00 2010 -0700
@@ -0,0 +1,109 @@
+/*
+ * 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 6935638
+ * @summary -implicit:none prevents compilation with annotation processing
+ */
+
+import java.io.*;
+import java.util.*;
+import javax.annotation.processing.*;
+import javax.lang.model.*;
+import javax.lang.model.element.*;
+
+
+@SupportedAnnotationTypes("*")
+public class TestImplicitNone extends AbstractProcessor {
+    public static void main(String... args) throws Exception {
+        new TestImplicitNone().run();
+    }
+
+    void run() throws Exception {
+        File classesDir = new File("tmp", "classes");
+        classesDir.mkdirs();
+        File test_java = new File(new File("tmp", "src"), "Test.java");
+        writeFile(test_java, "class Test { }");
+
+        // build up list of options and files to be compiled
+        List<String> opts = new ArrayList<String>();
+        List<File> files = new ArrayList<File>();
+
+        opts.add("-d");
+        opts.add(classesDir.getPath());
+        opts.add("-processorpath");
+        opts.add(System.getProperty("test.classes"));
+        opts.add("-implicit:none");
+        opts.add("-processor");
+        opts.add(TestImplicitNone.class.getName());
+        files.add(test_java);
+
+        compile(opts, files);
+
+        File test_class = new File(classesDir, "Test.class");
+        if (!test_class.exists())
+            throw new Exception("Test.class not generated");
+    }
+
+    /** Compile files with options provided. */
+    void compile(List<String> opts, List<File> files) throws Exception {
+        System.err.println("javac: " + opts + " " + 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.flush();
+        if (sw.getBuffer().length() > 0)
+            System.err.println(sw.toString());
+        if (rc != 0)
+            throw new Exception("compilation failed: rc=" + rc);
+    }
+
+    /** Write a file with a given body. */
+    void writeFile(File f, String body) throws Exception {
+        if (f.getParentFile() != null)
+            f.getParentFile().mkdirs();
+        Writer out = new FileWriter(f);
+        try {
+            out.write(body);
+        } finally {
+            out.close();
+        }
+    }
+
+    //----- annotation processor methods -----
+
+    public boolean process(Set<? extends TypeElement> annotations,
+                         RoundEnvironment roundEnv) {
+        return true;
+    }
+
+    @Override
+    public SourceVersion getSupportedSourceVersion() {
+        return SourceVersion.latest();
+    }
+}