jdk/test/sun/management/jmxremote/bootstrap/TestManager.java

@@ -55,11 +55,11 @@
      */
     private static void startManagementAgent(String pid) throws IOException {
         try {
             VirtualMachine.attach(pid).startLocalManagementAgent();
         } catch (Exception x) {
-            throw new IOException(x.getMessage());
+            throw new IOException(x.getMessage(), x);
         }
     }
 
     private static void connect(String pid, String address) throws Exception {
         if (address == null) {