问题
is it possible to trace all exceptions in Tomcat server (or, in general, JVM)?
Thanks for all!
P.S. I need it because exception occurs in org.primefaces.application.PrimeResourceHandler.handleResourceRequest() and a trivial message is printed (line 79)
回答1:
Sure. Start tomcat using that:
./catalina jpda start
And then connect using the eclipse debugger, as described here:
http://wiki.apache.org/tomcat/FAQ/Developing#Q1
When for example Eclipse is connected, go to the Breakpoints panel, there will be a button "Add Java Exception breakpoint" if you set java.lang.Exception or java.lang.RuntimeException there, all the subclasses will be caught.
回答2:
Globally the logging is either configured in
${catalina.base}/conf/logging.properties file or {java.home}/lib/logging.properties
You can change the trace level by uncommenting the following property and setting it to ALL.
org.apache.catalina.level=ALL
More Info: Documentation
回答3:
I am not aware of such a feature in the JVM.
I believe you wish so figure out the reason why that exception is being thrown, right? I would use an IDE such as Netbeans, include that library as a dependency, download the sources, and place a breakpoint on that line. Then, through the standard debugger, I would scan the stack trace when the breakpoint is hit to look for clues.
来源：https://stackoverflow.com/questions/11264133/tomcat-trace-all-even-catched-exceptions