src/jdk.attach/share/classes/sun/tools/attach/HotSpotVirtualMachine.java

*** 84,105 ****
       * name and it will be expended in the target VM.
       */
      private void loadAgentLibrary(String agentLibrary, boolean isAbsolute, String options)
          throws AgentLoadException, AgentInitializationException, IOException
      {
          InputStream in = execute("load",
                                   agentLibrary,
                                   isAbsolute ? "true" : "false",
                                   options);
!         try {
!             int result = readInt(in);
!             if (result != 0) {
!                 throw new AgentInitializationException("Agent_OnAttach failed", result);
              }
-         } finally {
-             in.close();
- 
          }
      }
  
      /*
       * Load agent library - library name will be expanded in target VM
--- 84,111 ----
       * name and it will be expended in the target VM.
       */
      private void loadAgentLibrary(String agentLibrary, boolean isAbsolute, String options)
          throws AgentLoadException, AgentInitializationException, IOException
      {
+         String msgPrefix = "return code: ";
          InputStream in = execute("load",
                                   agentLibrary,
                                   isAbsolute ? "true" : "false",
                                   options);
!         BufferedReader reader = new BufferedReader(new InputStreamReader(in));
!         try (reader) {
!             String result = reader.readLine();
!             if (result == null) {
!                 throw new AgentLoadException("Target VM did not respond");
!             } else if (result.startsWith(msgPrefix)) {
!                 int retCode = Integer.parseInt(result.substring(msgPrefix.length()));
!                 if (retCode != 0) {
!                     throw new AgentInitializationException("Agent_OnAttach failed", retCode);
!                 }
!             } else {
!                 throw new AgentLoadException(result);
              }
          }
      }
  
      /*
       * Load agent library - library name will be expanded in target VM