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I am trying to use visualVM for profiling a simple java application that I am debugging with Intellij. I start the application to debug, open visualVM, and I can see my application in the list. I can open it; however, I am unable to use sampling or profiling for my application. Other applications, such as Intellij, can be profiled just fine. When I check the visualVM logs I see:
INFO [com.sun.tools.visualvm.jmx.impl.JmxModelImpl]: connect(2749) com.sun.tools.attach.AttachNotSupportedException: Unable to open socket file: target process not responding or HotSpot VM not loaded
more information: Operating System = Mac OS X version 10.9.1 running on x86_64 Java; VM; Vendor = 1.7.0_51; Java HotSpot(TM) 64-Bit Server VM 24.51-b03; Oracle Corporation Intellij IDEA = 13.0.2
if anyone has this working, please let me know how you got it. I would like to use the Intellij VisualVMLauncher as well if I can get it going.
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In Java VisualVM's Applications window, right click on the Local machine and select 'Add JMX Connection'. The Add JMX Connection dialog box opens. The host name localhost is already filled in. You only need to add the port number on which the application is exposed for monitoring and management.
IntelliJ IDEA To set up VisualVM in Idea, first download the VisualVM Launcher jar. Open up the plugins settings page and install it by selecting 'Install plugin from disk'. Relaunch Idea and go to the new VisualVM Launcher settings page. Set the path to your jvisualvm.
Java VisualVM enables you to take profiler snapshots to capture the results of a profiling session. A profiler snapshot captures the results at the moment the snapshot is taken. To take a snapshot, click the Take Snapshot of Collected Results button in the toolbar while a profiling session is in progress.
Maybe this helps:
java -Dcom.sun.management.jmxremote \
-Dcom.sun.management.jmxremote.port=9010 \
-Dcom.sun.management.jmxremote.local.only=false \
-Dcom.sun.management.jmxremote.authenticate=false \
-Dcom.sun.management.jmxremote.ssl=false \
-jar xxx.jar
This looks the JDK bug #8023786. Until this is fixed in JDK 7u60, you can run the profiled application with -XX:+StartAttachListener. Some details about this bug are also in this email thread.
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