[jboss-jira] [JBoss JIRA] Created: (JBRULES-704) Drools 3.1.M1 Rules build results in java.lang.UnsupportedOperationException
Drools 3.1.M1 Rules build results in java.lang.UnsupportedOperationException
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Key: JBRULES-704
URL: http://jira.jboss.com/jira/browse/JBRULES-704
Project: JBoss Rules
Issue Type: Bug
Security Level: Public (Everyone can see)
Components: Drl Parser/Builder
Affects Versions: 3.1-m1
Environment: Windows 2k
Reporter: Thomas Gonzalez
Assigned To: Mark Proctor
Initial issue description sent in following email test:
yep - looks like a bug to me on a quick look - do you want to attach a simple test to a
JIRA?
On 2/23/07, Tom Gonzalez < tomgon(a)nortel.com> wrote:
Getting exception below building rules that build in 3.0.4.
Looking at FunctionBuilder we have at line 106. The code in red looks suspicious? Seems it
should be mapping "mapping" against the name.
But that is not what is the cause of the exception apparently put is not supported?
String name = pkg.getName() + "." + ucFirst( functionDescr.getName() );
LineMappings mapping = new LineMappings( name );
mapping.setStartLine( functionDescr.getLine() );
mapping.setOffset( functionDescr.getOffset() );
lineMappings.put( name, lineMappings );
[java] INFO: ============== Start build RulePackage: [engrules.ers8600] ===
======
[java] Feb 21, 2007 2:38:28 PM com.nortel.connect.rbuilder.RulePackage addR
ulesFromDrlFile
[java] INFO: adding Rules from: ERS8600Rules.drl (no associated DSL)
[java] Feb 21, 2007 2:38:28 PM com.nortel.connect.rbuilder.RulePackage addR
ulesFromDrlFile
[java] INFO: parsed rules no dsl
[java] java.lang.UnsupportedOperationException
[java] at java.util.AbstractMap.put(AbstractMap.java:228)
[java] at org.drools.semantics.java.FunctionBuilder.build(FunctionBuild
er.java:110)
[java] at org.drools.compiler.PackageBuilder.addFunction(PackageBuilder
.java:326)
[java] at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.
java:214)
[java] at com.nortel.connect.rbuilder.RulePackage.addRulesFromDrlFile(R
ulePackage.java:226)
[java] at com.nortel.connect.rbuilder.RulePackager.build(RulePackager.j
ava:205)
[java] at com.nortel.connect.rbuilder.RulePackager.buildAll(RulePackage
r.java:141)
[java] at com.nortel.connect.rbuilder.RulePackager.main(RulePackager.ja
va:91)
A second problem is the cause of the UnsupportedOperationException turns out to be our use
of the PackageBuilder in 3.0.4 that is no longer supported by 3.1.M1. We are using the
merge rules constructor when we create a rule package from scratch as follows:
this.droolsPackage = new org.drools.rule.Package(packageName);
PackageBuilderConfiguration config = new PackageBuilderConfiguration();
config.setJavaLanguageLevel("1.5");
this.packageBuilder = new PackageBuilder(droolsPackage, config);
This used to work before but in version 3.1.M1 in PackageBuilder the Map lineMappings is
only initialized with a HashMap when the newPackage() method is invoked and not when the
mergePackage() method is invoked. The assumption is the lineMappings has been initialized
when mergePackage() has been invoked.
Changing to properly use from scratch and merge constructors
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