I think this answers your question: https://issues.jboss.org/browse/JBRULES-3621
You could try 5.5.0.Beta1 which includes the fix. On 2 October 2012 10:56, Phani Saripalli <saripalli.ph...@gmail.com> wrote: > Hi. > I am using declared types in .drl rule rule. When I kept the number of > fields in a declared type low, drools works fine. When I am increasing the > number of fields in a declared type to 300 or even more, drools raising an > exception. > Particularly, it is giving this. > > > ava.lang.ClassFormatError: Too many arguments in method signature in class > file com/sample/Project > at java.lang.ClassLoader.defineClass1(Native Method) > at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631) > at java.lang.ClassLoader.defineClass(ClassLoader.java:615) > at > > org.drools.rule.JavaDialectRuntimeData$PackageClassLoader.fastFindClass(JavaDialectRuntimeData.java:615) > at > > org.drools.util.CompositeClassLoader$CachingLoader.load(CompositeClassLoader.java:254) > at > > org.drools.util.CompositeClassLoader$CachingLoader.load(CompositeClassLoader.java:237) > at > > org.drools.util.CompositeClassLoader.loadClass(CompositeClassLoader.java:88) > at java.lang.ClassLoader.loadClass(ClassLoader.java:247) > at > org.drools.base.ClassTypeResolver.resolveType(ClassTypeResolver.java:155) > at > > org.drools.compiler.PackageBuilder.processTypeDeclarations(PackageBuilder.java:2049) > at > org.drools.compiler.PackageBuilder.mergePackage(PackageBuilder.java:1218) > at > org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:829) > at > > org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:467) > at > > org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:673) > at > > org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:45) > at > > org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:34) > at com.sample.DroolsTest.readKnowledgeBase(DroolsTest.java:67) > at com.sample.DroolsTest.main(DroolsTest.java:24) > > > I suspect, it is something to do with creating class, constructor with so > many arguments at run time. I am looking for a solution, something like > declared types, or a workaround. The purpose for which I am using Drools > limits to use the traditional Java classes, or defining a Java class. > Also, is there any way, to perform calculations, or value propagations. > That, Drools could assume some value to a variable given a certain > constraint on it. > > For example, x > 6 && x < 9, Drools could assume x as 7 or 8 and fire > rules? > > Thank you. > Phani > > > > -- > View this message in context: > http://drools.46999.n3.nabble.com/Declared-Types-with-large-number-of-fields-tp4020076.html > Sent from the Drools: User forum mailing list archive at Nabble.com. > _______________________________________________ > rules-users mailing list > rules-users@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users >
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