You should add the drools-core library as a required dependency. Fernando Meyer http://fmeyer.org fmcamargo(a)gmail.com PGP: 0xD804DDFB On Jul 17, 2007, at 9:55 AM, Jesse Stockall wrote: > Tomcat 5.5 > Java 1.5 > jbossrules-4.0.0.12865MR3 > > I have an instance of Drools running inside a webapp deployed on > Tomcat. The rules have been compiled ahead of time and are loaded in > with: > > InputStream is = PolicyRuntime.class.getResourceAsStream(name); > DroolsObjectInputStream in = new DroolsObjectInputStream(is); > Package p = (Package) in.readObject(); > > When run outside Tomcat it loads fine, when run inside Tomcat I get: > > java.lang.NoClassDefFoundError: > org/drools/base/extractors/BaseObjectClassFieldExtractor > at java.lang.ClassLoader.defineClass1(Native Method) > at java.lang.ClassLoader.defineClass(ClassLoader.java:620) > at org.drools.base.ClassFieldExtractorFactory > $ByteArrayClassLoader.defineClass(ClassFieldExtractorFactory.java:455) > at > org.drools.base.ClassFieldExtractorFactory.getClassFieldExtractor(ClassFieldExtractorFactory.java:114) > at > org.drools.base.ClassFieldExtractor.init(ClassFieldExtractor.java:77) > at > org.drools.base.ClassFieldExtractor.<init>(ClassFieldExtractor.java:57) > at > org.drools.base.ClassFieldExtractorCache.getExtractor(ClassFieldExtractorCache.java:35) > at > org.drools.base.ClassFieldExtractor.readResolve(ClassFieldExtractor.java:72) > > I've tried adding DroolsObjectInputStream.class.getClassLoader() , > PolicyRuntime.class.getClassLoader() and > Thread.currentThread().getContextClassLoader() to the constructor of > the DroolsObjectInputStream but none had any effect. > > Thanks > > Jesse > > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

It seems to be a bug, please could you open a Ticket in jira and provide additional information for that? Thanks Fernando Meyer http://fmeyer.org fmcamargo(a)gmail.com PGP: 0xD804DDFB On Jul 18, 2007, at 9:16 AM, Jesse Stockall wrote: > The NoClassDefFoundError exception is thrown from within drools > code, so it's obviously in the classpath. The problem appears to be > with the mechanism used by drools to load it's own code. > > Jesse > > On Wed, 2007-18-07 at 02:14 -0300, Fernando Meyer wrote: > > > You should add the drools-core library as a required dependency. > > > > Fernando Meyer http://fmeyer.org > > fmcamargo(a)gmail.com > > PGP: 0xD804DDFB > > > > > > > > > > > > On Jul 17, 2007, at 9:55 AM, Jesse Stockall wrote: > > > > > > > Tomcat 5.5 > > > Java 1.5 > > > jbossrules-4.0.0.12865MR3 > > > > > > I have an instance of Drools running inside a webapp deployed on > > > Tomcat. The rules have been compiled ahead of time and are > > > loaded in with: > > > > > > InputStream is = PolicyRuntime.class.getResourceAsStream(name); > > > DroolsObjectInputStream in = new DroolsObjectInputStream(is); > > > Package p = (Package) in.readObject(); > > > > > > When run outside Tomcat it loads fine, when run inside Tomcat I > > > get: > > > > > > java.lang.NoClassDefFoundError: > > > org/drools/base/extractors/BaseObjectClassFieldExtractor > > > at java.lang.ClassLoader.defineClass1(Native Method) > > > at java.lang.ClassLoader.defineClass(ClassLoader.java:620) > > > at org.drools.base.ClassFieldExtractorFactory > > > $ByteArrayClassLoader.defineClass(ClassFieldExtractorFactory.java:455) > > > at > > > org.drools.base.ClassFieldExtractorFactory.getClassFieldExtractor(ClassFieldExtractorFactory.java:114) > > > at > > > org.drools.base.ClassFieldExtractor.init(ClassFieldExtractor.java:77) > > > at > > > org.drools.base.ClassFieldExtractor.<init>(ClassFieldExtractor.java:57) > > > at > > > org.drools.base.ClassFieldExtractorCache.getExtractor(ClassFieldExtractorCache.java:35) > > > at > > > org.drools.base.ClassFieldExtractor.readResolve(ClassFieldExtractor.java:72) > > > > > > I've tried adding > > > DroolsObjectInputStream.class.getClassLoader() , > > > PolicyRuntime.class.getClassLoader() and > > > Thread.currentThread().getContextClassLoader() to the > > > constructor of the DroolsObjectInputStream but none had any > > > effect. > > > > > > Thanks > > > > > > Jesse > > > > > > _______________________________________________ > > > rules-users mailing list > > > rules-users(a)lists.jboss.org > > > https://lists.jboss.org/mailman/listinfo/rules-users > > > > > > > > > > _______________________________________________ > > rules-users mailing list > > rules-users(a)lists.jboss.org > > https://lists.jboss.org/mailman/listinfo/rules-users > > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users