src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/runtime/VM.java

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2018, 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.

@@ -85,10 +85,11 @@
   private Threads      threads;
   private ObjectSynchronizer synchronizer;
   private JNIHandles   handles;
   private Interpreter  interpreter;
   private StubRoutines stubRoutines;
+  private FileMapInfo  fileMapInfo;
   private Bytes        bytes;
 
   /** Flag indicating if JVMTI support is included in the build */
   private boolean      isJvmtiSupported;
   /** Flags indicating whether we are attached to a core, C1, or C2 build */

@@ -715,10 +716,20 @@
       vmregImpl = new VMRegImpl();
     }
     return vmregImpl;
   }
 
+  public FileMapInfo getFileMapInfo() {
+    if (isSharingEnabled() == false) {
+      return null;
+    }
+    if (fileMapInfo == null) {
+      fileMapInfo = new FileMapInfo();
+    }
+    return fileMapInfo;
+  }
+
   public Bytes getBytes() {
     if (bytes == null) {
       bytes = new Bytes(debugger.getMachineDescription());
     }
     return bytes;