[rules-users] Drools 4.0.1 Released

Scott Reed sreed at spamcop.net
Thu Aug 30 21:24:04 EDT 2007


Edson Tirelli's message received 8/30/2007 4:03 PM:
> 
>     Drools 4.0.1 was just released. Check our blog for the release notes:
> 
> http://blog.athico.com/2007/08/drools-401-released.html

I just downloaded 4.0.1 and rebuilt my app. Seeing the error below - looks like something with mvel 
jar. Is it my configuration or something in the release?

Exception in thread "main" java.lang.IncompatibleClassChangeError: Implementing class
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(Unknown Source)
	at java.security.SecureClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.access$100(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClassInternal(Unknown Source)
	at org.drools.rule.builder.dialect.mvel.MVELDialect.<init>(MVELDialect.java:84)
	at 
org.drools.rule.builder.dialect.mvel.MVELDialectConfiguration.getDialect(MVELDialectConfiguration.java:28)
	at org.drools.compiler.DialectRegistry.initAll(DialectRegistry.java:49)
	at org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:137)
	at org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:86)
	at org.fp.findata.Rules.generateRuleBase(Rules.java:143)
	at org.fp.findata.Rules.addPackage(Rules.java:185)
	at org.fp.findata.Rules.createRules(Rules.java:51)
	at org.fp.scenario.InitDB.initBasicRules(InitDB.java:598)
	at org.fp.scenario.InitDB.main(InitDB.java:74)
[db4o 6.1.602   2007-08-30 21:20:53]



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