[rules-users] upgrading from 4.0.0 to 4.0.2

[Edson Tirelli]

   Karl,

   Seems you are getting an MVEL JIT related error... did you upgraded the
dependencies jars too (specially MVEL jar)?

    []s
    Edson

2007/10/10, Karl Trout <karl.trout at gmail.com>:
>
> All I was trying to upgrade my application to use the latest 4.0.2
> release but I seem to be getting errors
> when my application is calling
>
> import org.drools.compiler.DroolsParserException;
> import org.drools.compiler.PackageBuilder;
>
> import org.drools.rule.Package;
> import org.drools.rule.Rule;
>
> PackageBuilder builder = new PackageBuilder();new PackageBuilder();
>
> here is the error thrown:
>
> java.lang.IncompatibleClassChangeError: Implementing class
>         at java.lang.ClassLoader.defineClass1(Native Method)
>         at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
>         at java.security.SecureClassLoader.defineClass(
> SecureClassLoader.java:124)
>         at org.apache.catalina.loader.WebappClassLoader.findClassInternal(
> WebappClassLoader.java:1817)
>         at org.apache.catalina.loader.WebappClassLoader.findClass(
> WebappClassLoader.java:872)
>         at org.apache.catalina.loader.WebappClassLoader.loadClass(
> WebappClassLoader.java:1325)
>         at org.apache.catalina.loader.WebappClassLoader.loadClass(
> WebappClassLoader.java:1204)
>         at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
>         at org.drools.rule.builder.dialect.mvel.MVELDialect.<init>(
> MVELDialect.java:78)
>         at
> org.drools.rule.builder.dialect.mvel.MVELDialectConfiguration.getDialect(
> MVELDialectConfiguration.java:26)
>         at
> org.drools.compiler.PackageBuilderConfiguration.buildDialectRegistry(
> PackageBuilderConfiguration.java:166)
>         at org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java
> :142)
>         at org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java
> :86)
>         at com.thomcomp.generate.action.RulesReader.readPackage(
> RulesReader.java:25)
>         at com.thomcomp.generate.action.RulesReader.getRules(
> RulesReader.java:55)
>         at com.thomcomp.generate.action.GetRulesDef.execute(
> GetRulesDef.java:47)
>         at org.apache.struts.action.RequestProcessor.processActionPerform(
> RequestProcessor.java:419)
>         at org.apache.struts.action.RequestProcessor.process(
> RequestProcessor.java:224)
>         at org.apache.struts.action.ActionServlet.process(
> ActionServlet.java:1194)
>         at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java
> :414)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
>         at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
> ApplicationFilterChain.java:290)
>         at org.apache.catalina.core.ApplicationFilterChain.doFilter(
> ApplicationFilterChain.java:206)
>         at org.apache.catalina.core.StandardWrapperValve.invoke(
> StandardWrapperValve.java:230)
>         at org.apache.catalina.core.StandardContextValve.invoke(
> StandardContextValve.java:175)
>         at org.apache.catalina.core.StandardHostValve.invoke(
> StandardHostValve.java:128)
>         at org.apache.catalina.valves.ErrorReportValve.invoke(
> ErrorReportValve.java:104)
>         at org.apache.catalina.core.StandardEngineValve.invoke(
> StandardEngineValve.java:109)
>         at org.apache.catalina.connector.CoyoteAdapter.service(
> CoyoteAdapter.java:261)
>         at org.apache.coyote.http11.Http11Processor.process(
> Http11Processor.java:844)
>         at
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(
> Http11Protocol.java:581)
>         at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(
> JIoEndpoint.java:447)
>         at java.lang.Thread.run(Thread.java:595)
>
>
> Did I miss something I can't seem to figure out where to start
> looking. some advise would be appreciated.
>
> running under tomcat 6 with  jdk1.5.0_09
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>



-- 
  Edson Tirelli
  Software Engineer - JBoss Rules Core Developer
  Office: +55 11 3529-6000
  Mobile: +55 11 9287-5646
  JBoss, a division of Red Hat @ www.jboss.com
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