NOTE: Collecting the stack trace information could impair the performance of your application if the application throws a large number of exceptions during the session. To minimize the effect on your application, you can enable the Thrown Exceptions (page 120) metric, which does not collect stack traces, when you start your session.
Figure
HPjmeter collects and reports exceptions caught in classes that are instrumented, that is, classes that the JVM agent instrumentation rules have not excluded. To identify the JVM agent rules in effect, you can use the JVM agent verbose option.
HPjmeter does not collect or report exceptions that are caught in methods filtered out by the exclude JVM agent option.
The display shows “No thrown exception detected since the session opened.” until HPjmeter detects a thrown exception at which time it displays the information.
The window shows events in a hierarchical tree.
The View menu allows you to control the information displayed in the window:
•Select View→Show Percentages to alternatively hide or show the percentage value of the total count for each exception, shown next to the count value.
•Select View→Show Packages to alternatively hide or show the Java package names to shorten the lines in the display.
•Select View→Show Stacktraces alternatively expand or collapse the throw location stack traces of all the exception nodes, or click on a specific node to expand or collapse its throw location stack trace only.
The results are cumulative over the lifetime of the session.
Related topics
Using Monitoring Displays 121