问题
I want to use java VisualVM to monitor the performance of my JAVA APP, but Java VisualVM can not get the detail data of the java task of eclipse. what should I do for this? is any one know?
回答1:
Make sure you have -Dcom.sun.management.jmxremote in the vmargs of Eclipse.
You can find out whether you have looking in this dialog: Help -> About -> Installation Details -> Configuration.
eclipse.vmargs=... shows all the arguments which were passed for the Java VM.
If this option is missing, then open eclipse.ini and search for the line -vmargs. If it's not there, add it at the end:
-vmargs
-Dcom.sun.management.jmxremote
Note that each of these options should go on a different line.
Make sure that -vmargs is the last Eclipse option in the file; everything below will be assembled into an array of arguments to the VM and ignored by Eclipse.
来源：https://stackoverflow.com/questions/19924817/how-can-java-visual-vm-get-connection-to-eclipse-java-task