--- a/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/api/WrappingJavaFileManager.java	Mon Apr 24 18:58:50 2017 +0200
+++ b/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/api/WrappingJavaFileManager.java	Mon Apr 24 14:59:43 2017 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2006, 2017, 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
@@ -35,6 +35,7 @@
 import javax.tools.*;
 import javax.tools.JavaFileObject.Kind;
 
+import com.sun.tools.javac.util.ClientCodeException;
 import com.sun.tools.javac.util.DefinedBy;
 import com.sun.tools.javac.util.DefinedBy.Api;
 
@@ -214,4 +215,9 @@
                                            unwrap(sibling)));
     }
 
+    @Override @DefinedBy(Api.COMPILER)
+    public boolean contains(Location location, FileObject file) throws IOException {
+        return super.contains(location, unwrap(file));
+    }
+
 }