src/share/vm/services/diagnosticCommand.cpp

*** 275,288 ****
      return;
    }
  
    char *suffix = strrchr(_libpath.value(), '.');
    bool is_java_agent = (suffix != NULL) && (strncmp(".jar", suffix, 4) == 0);
  
    if (is_java_agent) {
      if (_option.value() == NULL) {
!       JvmtiExport::load_agent_library("instrument", "false",
                                        _libpath.value(), output());
      } else {
        size_t opt_len = strlen(_libpath.value()) + strlen(_option.value()) + 2;
        if (opt_len > 4096) {
          output()->print_cr("JVMTI agent attach failed: Options is too long.");
--- 275,289 ----
      return;
    }
  
    char *suffix = strrchr(_libpath.value(), '.');
    bool is_java_agent = (suffix != NULL) && (strncmp(".jar", suffix, 4) == 0);
+   jint result = JNI_ERR;
  
    if (is_java_agent) {
      if (_option.value() == NULL) {
!       result = JvmtiExport::load_agent_library("instrument", "false",
                                                  _libpath.value(), output());
      } else {
        size_t opt_len = strlen(_libpath.value()) + strlen(_option.value()) + 2;
        if (opt_len > 4096) {
          output()->print_cr("JVMTI agent attach failed: Options is too long.");
*** 296,313 ****
                             opt_len);
          return;
        }
  
        jio_snprintf(opt, opt_len, "%s=%s", _libpath.value(), _option.value());
!       JvmtiExport::load_agent_library("instrument", "false", opt, output());
  
        os::free(opt);
      }
    } else {
!     JvmtiExport::load_agent_library(_libpath.value(), "true",
                                      _option.value(), output());
    }
  }
  
  int JVMTIAgentLoadDCmd::num_arguments() {
    ResourceMark rm;
    JVMTIAgentLoadDCmd* dcmd = new JVMTIAgentLoadDCmd(NULL, false);
--- 297,318 ----
                             opt_len);
          return;
        }
  
        jio_snprintf(opt, opt_len, "%s=%s", _libpath.value(), _option.value());
!       result = JvmtiExport::load_agent_library("instrument", "false",
!                                                 opt, output());
  
        os::free(opt);
      }
    } else {
!     result = JvmtiExport::load_agent_library(_libpath.value(), "true",
                                               _option.value(), output());
    }
+ 
+   output()->print_cr("JVMTI agent attach %s.",
+                                   (result == JNI_OK) ? "succeeded" : "failed");
  }
  
  int JVMTIAgentLoadDCmd::num_arguments() {
    ResourceMark rm;
    JVMTIAgentLoadDCmd* dcmd = new JVMTIAgentLoadDCmd(NULL, false);