I originally installed the plugin net.genady.rmi_1.5.5 for Eclipse 3.0 M6 on win2k sp4 J2sdk 1.5.0 and it worked fine.
My new environment is not standard in many ways and any of them could be the cause.
Java 1.5.0 build 31
Using linked plugin directories I moved the plugin to that directory
Eclipse Integration build 20040128
In this environment the plugin is listed as one of the plugins in about, but the builder fails Removing .config did not help
Here is the traceback if that helps
java.lang.InstantiationException: net.genady.rmi.RMIPlugin
at java.lang.Class.newInstance0(Class.java:303)
at java.lang.Class.newInstance(Class.java:271)
at org.eclipse.osgi.framework.internal.core.Bundle.loadBundleActivator(Bundle.java:170)
at org.eclipse.osgi.framework.internal.core.BundleContext.start(BundleContext.java:987)
at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:403)
at org.eclipse.osgi.framework.internal.core.Bundle.start(Bundle.java:312)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:133)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:125)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:114)
at org.eclipse.core.internal.events.BuildManager.instantiateBuilder(BuildManager.java:606)
at org.eclipse.core.internal.events.BuildManager.initializeBuilder(BuildManager.java:560)
at org.eclipse.core.internal.events.BuildManager.getBuilder(BuildManager.java:409)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:198)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:164)
at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:190)
at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:820)
at org.eclipse.core.runtime.Platform.run(Platform.java:471)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:193)
at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:227)
at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:255)
at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:90)
at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:116)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:62)