Speeding up Tomcat in debug mode with Eclipse IDE

java eclipse tomcat debug-mode
andersonbd1 picture andersonbd1 · Sep 2, 2009 · Viewed 33.7k times · Source

Running Tomcat through eclipse works fine in non-debug mode, but not in debug mode. When I try to start the Tomcat server in debug mode, the console output looks fine for a while, but then starts slowing down and eventually just stops, pegging the cpu at 100%. I don't think it's relevant, but just in case - here's the console output right about when it starts slowing down and eventually stopping (by stopping I mean no more console output, but still 100% cpu).

2009-09-02 14:35:30,859 INFO   NONE org.springframework.context.weaving.DefaultContextLoadTimeWeaver:72 - Found Spring's JVM agent for instrumentation
2009-09-02 14:35:49,562 INFO   NONE org.springframework.beans.factory.support.DefaultListableBeanFactory:414 - Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@ed889d: defining beans [...
2009-09-02 14:37:31,031 INFO   NONE org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean:221 - Building JPA container EntityManagerFactory for persistence unit ...

I tried everything I could think of to fix it:

  • cleanesd tomcat working directory
  • restarted eclipse
  • restarted Windows
  • refreshed/cleaned all projects

I first had this problem last week using eclipse ganymede. I had been running fine in debug-mode for several months prior to this issue. I didn't make any significant changes to our project that would cause this. Eventually, I upgraded to eclipse galileo which solved my problem. Now 2 days later, I'm having the same problem in galileo. Like I said it works fine in non-debug mode. Any help is much appreciated.

I should add that other things work in debug mode - for instance junit tests, so it is something specific to tomcat.

Answer

andersonbd1 picture andersonbd1 · Sep 3, 2009

I've gotten through the issue! Once I figured it out, I remember that this has happened before. I cleared all my breakpoints and it works fine. I have no idea why that would cause the outcome that is does, but it works.

Related questions

Several ports (8005, 8080, 8009) required by Tomcat Server at localhost are already in use

I'm getting the following error when I try to run a simple JSP program on Tomcat in Eclipse. Several ports (8005, 8080, 8009) required by Tomcat v6.0 Server at localhost are already in use. The server may already be running in another process, …

Read More
The import javax.servlet can't be resolved

I'm trying to use eclipse for Java EE to develop web applications. I need to use Tomcat as my server. I've downloaded Tomcat and it's running. But my program doesn't compile. I get the following error: The import javax.servlet …

Read More
Apache Tomcat Not Showing in Eclipse Server Runtime Environments

I have tomcat 5.5 installed, running and verifiable at http://localhost:8080/. The Tomcat menu option appears in the Eclipse menu bar and I can start and stop Tomcat from there. In Eclipse, it does not show as a Server Runtime Environment …

Read More