Re: [rules-users] class loading issue with websphere 6.1

Thanks Steve, I tried PARENT_LAST option, but that did not help. I will consider upgrading to 6.1.0.3. in the meanwhile i have the solution to this, by using JANINO instead of ECLIPSE. cheers, Vishal Steven Williams-3 wrote: > > Hi Vishal, > > We had similar problems which we resolved by upgrading to WebSphere > 6.1.0.3. > This version uses the same 3.2 jars as jboss rules. An alternative > solution > to this is to make sure that you are using the PARENT_LAST classloading > policy for your application and making sure the required jars are in your > ear (depending on how far along you are in development I would suggest > making this change anyway as it ensures the application jars are used in > preference to the server's). I'll put something up on the wiki for > troubleshooting with WebSphere. > > cheers > Steve > > On 1/19/07, Vishal Joshi <vishaljoshi18(a)yahoo.com&gt; wrote: >> >> >> This is resolved now. >> For benefit of others, i added the system variable in websphere console >> drools.compiler=JANINO >> This at runtime uses janino compiler api instead of using eclipse >> compiler, >> which seems to have conflict with the websphere app server's internal >> eclipse API. >> >> >> >> Vishal Joshi wrote: >> > >> > or alternatively can we configure jboss rules to use janino compiler >> > instead of eclipse compiler? >> > >> > >> > Vishal Joshi wrote: >> >> >> >> Just to re-iterate >> >> commons-jci-core-1.0-406301.jar has this class CompilationResult (with >> >> different packaging) which does NOT have getProblems() method. >> >> But I have another jar core-3.2.0.666.jar in my application, which has >> >> org.eclipse.jdt.internal.compiler.CompilationResult class with >> >> getProblems() method as expected. >> >> so this class with the required method is definitely there in the >> >> classpath. >> >> >> >> is there any other jar that is missing? or anything else? >> >> >> >> >> >> Vishal Joshi wrote: >> >>> >> >>> It is working fine with websphere 6.0.2.3 and the same application's >> >>> rule engine module does not work with websphere 6.1. >> >>> >> >>> My application has all these JCI jars bundled: >> >>> commons-jci-core-1.0-406301.jar >> >>> commons-jci-eclipse-3.2.0.666.jar >> >>> commons-jci-janino-2.4.3.jar >> >>> >> >>> anything that is missing? >> >>> >> >>> >> >>> >> >>> Mark Proctor wrote: >> >>>> >> >>>> Have you included all the JCI jars and the correct versions? >> >>>> >> >>>> Mark >> >>>> Vishal Joshi wrote: >> >>>>> posting it again after successfule subscription. >> >>>>> I have deployed my application on websphere 6.1, which contains >> Rule >> >>>>> engine >> >>>>> as one of the module using JBoss Rule 3.0.1. When i am trying to >> >>>>> invoke >> >>>>> drools api from my class >> >>>>> ==================================== >> >>>>> final PackageBuilder builder = new PackageBuilder(); >> >>>>> builder.addPackageFromDrl(new StringReader(drl)); >> >>>>> ==================================== >> >>>>> >> >>>>> it throws this exception: >> >>>>> >> >>>>> java.lang.NoSuchMethodError: >> >>>>> org/eclipse/jdt/internal/compiler/CompilationResult >> >>>>> .getProblems()[Lorg/eclipse/jdt/core/compiler/CategorizedProblem; >> >>>>> at >> >>>>> org.apache.commons.jci.compilers.EclipseJavaCompiler$2.acceptResult >> (E >> >>>>> clipseJavaCompiler.java:237) >> >>>>> at >> >>>>> org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java >> :335) >> >>>>> >> >>>>> at >> >>>>> org.apache.commons.jci.compilers.EclipseJavaCompiler.compile >> (EclipseJ >> >>>>> avaCompiler.java:268) >> >>>>> at org.drools.compiler.PackageBuilder.compile(Unknown >> Source) >> >>>>> at org.drools.compiler.PackageBuilder.compileRule(Unknown >> >>>>> Source) >> >>>>> at org.drools.compiler.PackageBuilder.addRule(Unknown >> Source) >> >>>>> at org.drools.compiler.PackageBuilder.addPackage(Unknown >> >>>>> Source) >> >>>>> at >> >>>>> org.drools.compiler.PackageBuilder.addPackageFromDrl(Unknown >> >>>>> Source) >> >>>>> >> >>>>> >> >>>>> I have checked that class >> >>>>> org.eclipse.jdt.internal.compiler.CompilationResult is available >> with >> >>>>> my >> >>>>> application war in core-3.2.0.666.jar (which is part of drools >> >>>>> distributable) and it has getProblems() method also. >> >>>>> >> >>>>> any help will be greatly appreciated. >> >>>>> >> >>>> >> >>>> _______________________________________________ >> >>>> rules-users mailing list >> >>>> rules-users(a)lists.jboss.org >> >>>> https://lists.jboss.org/mailman/listinfo/rules-users >> >>>> >> >>>> >> >>> >> >>> >> >> >> >> >> > >> > >> >> -- >> View this message in context: >> http://www.nabble.com/class-loading-issue-with-websphere-6.1-tf3027390.ht... >> Sent from the drools - user mailing list archive at Nabble.com. >> >> _______________________________________________ >> rules-users mailing list >> rules-users(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/rules-users >> > > > > -- > Steven Williams > > Supervising Consultant > > Object Consulting > Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 > stevenw(a)objectconsulting.com.au > www.objectconsulting.com.au > > consulting | development | training | support > our experience makes the difference > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > > -- View this message in context: http://www.nabble.com/class-loading-issue-with-websphere-6.1-tf3027390.ht... 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