ClassCastException when profiling SQL

[leonardobsjr]

Describe the bug
When profiling JDBC connections, sometimes i get a ClassCastException.

To Reproduce
Steps to reproduce the behavior:

1. Start VisualVM
2. Click on PID
3. Profile the JDBC connections on the application

Expected behavior
Expected to see SQL's showing, but VisualVM freezes and my application Freezes too.

VisualVM log
Please attach VisualVM messages.log file to help diagnose your [problem.]
messages.zip

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: Ubuntu 20.10.1
• JDK version AdoptOpenJDK 11.0.8
• Version 2.0.4

Additional context

• The application being profiled is a Java7 JBoss 5.1 application.
• VisualVM gives this errors for some parts of the Application, but not for all of them.
• I traced this error to a Netbeans Jira: https://issues.apache.org/jira/browse/NETBEANS-402
• Log of JBoss Attached - jboss.tar.gz.

[thurka]

Thanks for the report. If this is similar to netbeans bug, can you please attach the ClassCastException from your JBoss 5.1 server?

[leonardobsjr]

Thanks for the report. If this is similar to netbeans bug, can you please attach the ClassCastException from your JBoss 5.1 server?

Sure @thurka . I edited the bug report, thank you for the fast answer. If you can answer: there is a lot of "Profiler Agent Warning" on the log. What are those?

[thurka]

Thanks for log from JBoss. "Profiler Agent Warning" are unrelated and shows that some of the frames in stacktraces for SQL commands are missing. This should be filed as separate issue.

[leonardobsjr]

"Profiler Agent Warning" are unrelated and shows that some of the frames in stacktraces for SQL commands are missing.

Can i just ignore it? Can i disable the warning?

[thurka]

Can i just ignore it?

Yes, you can safely ignore it.

[thurka]

Fixed in master.