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Troubleshooting runtime issues
Most of the issues you may find when running Geronimo will be at start up time; and most likely driven by some conflicting resources from the environment where Geronimo is set up.
Java
Apache Geronimo v2.1 is Java EE 5 certified. With that said, it will likely run on different JVM versions however the results may be unpredictable. Whenever possible use jdk 1.5.
Another common problem related to Java is that, sometimes, certain environment variables are not defined at Java installation time. For instance, Geronimo requires JAVA_HOME and JRE_HOME to be defined before running the server. As a convenience, make sure you also add <java_home>/bin
directory to the system PATH.
Port conflicts
The second most common startup issue is associated to port conflicts, check no other application is using or blocking Geronimo's default ports:
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