[jboss-jira] [JBoss JIRA] Created: (JBRULES-2885) DRL Mvel exception parsing escape sequences with \(

[Joe White (JIRA)]

DRL Mvel exception parsing escape sequences with \(
---------------------------------------------------

                 Key: JBRULES-2885
                 URL: https://issues.jboss.org/browse/JBRULES-2885
             Project: Drools
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: drools-compiler
    Affects Versions: 5.2.0.M1
         Environment: Windows
Java 1.5
Latest version of Drools 5.2.0.M1 including attached mvel version 
            Reporter: Joe White
            Assignee: Mark Proctor
             Fix For: 5.2.0.M1


Exception thrown when adding the DRL below. Functions correctly in 5.0.1 and 5.1.1

*******************DRL**********************************

package benefitResolution.oop;


import java.util.Map;

import com.recondotech.droolsTest.TestObject;
dialect "mvel"

rule "Rule with parens"
      salience 300
      when
            $testObj : TestObject($mapData: mapData)
            Map(this['STRING_WITH_PARENS'] matches '(?i).*\(ROUTINE\).*') from $mapData
      then
            System.out.println("PASS");
      end
********************************************************

****************Exception******************************

Unable to determine the used declarations.
[Error: illegal escape sequence: (]
[Near : {... ENS'] ~= "(?i).*\(ROUTINE\).* ....}]
                                          ^
[Line: 1, Column: 51] : [Rule name='Set Value One Negative']

java.lang.IllegalArgumentException: Could not parse knowledge.
	at com.recondotech.droolsTest.DroolsUpdateTest.readKnowledgeBase(DroolsUpdateTest.java:40)
	at com.recondotech.droolsTest.DroolsUpdateTest.testUpdate(DroolsUpdateTest.java:21)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:73)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:46)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41)
	at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:220)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)


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