--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/src/jdk.compiler/share/classes/com/sun/tools/sjavac/PubApiExtractor.java	Tue Jun 09 15:57:45 2015 +0200
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2012-2014, 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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 com.sun.tools.sjavac;
+
+import java.io.PrintWriter;
+import java.util.Arrays;
+
+import javax.tools.JavaCompiler.CompilationTask;
+import javax.tools.JavaFileManager;
+
+import com.sun.tools.javac.api.JavacTool;
+import com.sun.tools.javac.code.ClassFinder;
+import com.sun.tools.javac.code.Symbol.ClassSymbol;
+import com.sun.tools.javac.main.JavaCompiler;
+import com.sun.tools.javac.util.Context;
+import com.sun.tools.javac.util.Name;
+import com.sun.tools.javac.util.Names;
+import com.sun.tools.sjavac.comp.PubapiVisitor;
+import com.sun.tools.sjavac.comp.SmartFileManager;
+import com.sun.tools.sjavac.options.Options;
+import com.sun.tools.sjavac.pubapi.PubApi;
+
+public class PubApiExtractor {
+    // Setup a compiler context for finding classes in the classpath
+    // and to execute annotation processors.
+    Context context;
+    CompilationTask task;
+
+    /**
+     * Setup a compilation context, used for reading public apis of classes on the classpath
+     * as well as annotation processors.
+     */
+    public PubApiExtractor(Options options) {
+        JavacTool compiler = com.sun.tools.javac.api.JavacTool.create();
+        SmartFileManager fileManager = new SmartFileManager(compiler.getStandardFileManager(null, null, null));
+        context = new com.sun.tools.javac.util.Context();
+        String[] args = options.prepJavacArgs();
+        task = compiler.getTask(new PrintWriter(System.err),
+                                fileManager,
+                                null,
+                                Arrays.asList(args),
+                                null,
+                                null,
+                                context);
+        // Trigger a creation of the JavaCompiler, necessary to get a sourceCompleter for ClassFinder.
+        // The sourceCompleter is used for build situations where a classpath class references other classes
+        // that happens to be on the sourcepath.
+        JavaCompiler.instance(context);
+
+//        context.put(JavaFileManager.class, fileManager);
+    }
+
+    public PubApi getPubApi(String fullyQualifiedClassName) {
+        ClassFinder cr = ClassFinder.instance(context);
+        Names ns = Names.instance(context);
+        Name n = ns.fromString(fullyQualifiedClassName);
+        ClassSymbol cs = cr.loadClass(n);
+        PubapiVisitor v = new PubapiVisitor();
+        v.visit(cs);
+        return v.getCollectedPubApi();
+    }
+}