[
https://issues.jboss.org/browse/JBRULES-2886?page=com.atlassian.jira.plug...
]
Edson Tirelli commented on JBRULES-2886:
----------------------------------------
Joe, this seems related to a deprecated feature. In Drools 4, we supported strings with
single escapes \ only. In Drools 5.0, we adopted the java practice of double escaping \ on
regular expressions and we added a knowledge builder configuration (ProcessStringOption)
to support backward compatibility, while deprecated the Drools 4 way. In Drools 5.2, we
are removing the deprecated scenario as part of the new parser.
Can you confirm that your application was still using ProcessStringOption.YES?
I added test cases to the code base using the double escaped \\ and did not had any
problems:
https://github.com/droolsjbpm/drools/commit/303d9416e28ae44faad611ae7eaac...
Let me know the above and we can figure out how to proceed.
Illegal escape sequence exception in 5.2.0M1. See also JIRA
JBRULES-2885
-------------------------------------------------------------------------
Key: JBRULES-2886
URL:
https://issues.jboss.org/browse/JBRULES-2886
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
Drools 5.2.0M1
Reporter: Joe White
Assignee: Edson Tirelli
Fix For: 5.2.0.M1
Exception thrown for rules that work in 5.0.1 and 5.1.1. Rules and exception below. Unit
test emailed to team
****************************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 '\..*') from $mapData
then
System.out.println("PASS");
end
**********************************************************
************************Exception************************
Unable to determine the used declarations.
[Error: illegal escape sequence: .]
[Near : {... STRING_WITH_PARENS'] ~= "\..* ....}]
^
[Line: 1, Column: 36] : [Rule name='Rule with slash dot']
java.lang.IllegalArgumentException: Could not parse knowledge.
at com.recondotech.droolsTest.SlashDotTest.readKnowledgeBase(SlashDotTest.java:40)
at com.recondotech.droolsTest.SlashDotTest.testUpdate(SlashDotTest.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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