ClassNotFoundException with servlet located in a jar file while using Tomcat 'plug-in'

Hi guys,

I've found an issue adding additional sevlets to my grails app when the servlet classes are stored within jar files. I've re-created this issue with both Grails 1.2.2 & 1.3.1.

It throws a ClassNotFoundException when you run-app (see snippet below). But if I place the source of the servlet in the src/java folder it works fine.

java.lang.ClassNotFoundException: uk.co.tribal.HelloWorld
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at sun.reflect.GeneratedMethodAccessor128.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite$PojoCachedMethodSiteNoUnwrapNoCoerce.invoke(PojoMetaMethodSite.java:229)
at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite.call(PojoMetaMethodSite.java:52)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
at org.grails.tomcat.ParentDelegatingClassLoader.findClass(TomcatServer.groovy:327)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1095)

To recreate extract the attached zip & run grails run-app. You should see an error similar to above. To then see this servlet working remove the jar from the lib folder and copy the servlet source from the src/java.tmp folder to the src/java folder. Following a grails run-app, this will now start successfully without error.

This appears to be an issue when the Tomcat plug-in is used, as it works find with Jetty.

Tim..