VisualVM

I set up JMX on one of services running on Amazon EC2 instance but it doesn't work properly. I'm using VisualVM to connect and after short period of pending it fails with timeout. Looks like it fails because of missing response data or lags. I checked that JMX port is enabled in security group and also tried with different port with no JMX enabled and also with port not enabled in security group settings and both fails immediately, so it looks different. My EC2 instance and desktop both have Ubuntu 12.04 and JDK 7 installed. It turns out ports don't make sense since connection is SSL secured.

Question Why does VisualVM terminate my program when attempting to view object allocation stack trace, and how do I fix it? I'm cleaning up an application which has a few memory problems, the biggest being creating a bunch of short-lived int[] which causes GC to fire like crazy: When I right click int[] and choose Take Snapshot and Show Allocation Stack Traces , my application closes and a warning box pops up saying Failed to obtain results snapshot. The application terminated : The closest thing I found on the subject was a bug report which recommended running my profiled application with

I have already spent a long time to load and test my application, now I need to profile it. But unluckily, the VisualVM always says "not supported for this JVM" on my local applications? The applications were started on the same JVM with VisualVM. Rolf Viehmann I found out that (at least under Windows) one can easily write small batch files to run VisualVM in combination with specific JVMs, which is important for me, since I have installed the 32bit JDK alongside with the 64bit JDK (I need both, so this is sensible for me). I have created two batch files in the folder "S:\applications\visualvm

I'm using Sigar to get the CPU usage of the current running JVM in an application server and store it for historical view of this data, but I always get 0% CPU percentage. In the meanwhile, I keep my visualVM open to monitor CPU usage, and I get to see the CPU % changing periodically in visualVM while it always reports 0% using Sigar. Here is the code I m running periodically: Sigar sigar = new Sigar(); ProcCpu cpu = null; long pId = sigar.getPid(); // This one gives me the same process ID that I see in visualVM try { cpu = sigar.getProcCpu(pId); } catch (SigarException se) { se

I'm running VisualVM to profile a simple Java application. When I double-click on a method in the profiling pane (hoping to get more details on it), then it says "No source found for class ....". I know where the source is. How do I tell VisualVM where to look? I took a stack dump of the VisualVM process while it was displaying that error dialog, and it seems that the problem lies in the class org.netbeans.modules.profiler.api.GoToSource , in the method openSourceImpl . This method tries to load the source using any registered implementations of the GoToSourceProvider service provider

If I try to profile application, (which is prepared under Eclipse, but running from command line) with the help of VisualVM, I get the following error message Simultaneously, the project folder is fouled with newly created class files. Although they are already existing in target/classes . The project structure is Maven's, i.e. there is a foder target/classes in current directory and I us the following command to run the application java -Xmx16g -cp target/classes tests.Runner01 How to fix? UPDATE The same occurs with conventional java project too. Below it the picture of populated class files