Category: java

Annotations, Java compiler and missing debugging information

So I play with my favorite ant build script and a day later nearly every annotation is broken:java.lang.IllegalStateException: No parameter name specified for argument of type [java.lang.String], and no parameter name information found in class file either.as far as the eye goes. What actually happened is that the new deployment skips debugging information in the … Continue reading Annotations, Java compiler and missing debugging information

A counterintuitive relation between CPU and memory usage

Continuing my tests on low-end server environments, I recently set up a stresstest of a load balanced tomcat webapp. Part of that tests consist in reducing the available memory for the webapp (JVM -Xmx switch) and see how low it could go before negatively affecting performance.It's common knowledge that once available memory runs out on … Continue reading A counterintuitive relation between CPU and memory usage