[jboss-jira] [JBoss JIRA] Created: (JBRULES-3004) NPE due to incomplete UnicodeEscape

[Wolfgang Laun (JIRA)]

NPE due to  incomplete UnicodeEscape
------------------------------------

                 Key: JBRULES-3004
                 URL: https://issues.jboss.org/browse/JBRULES-3004
             Project: Drools
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: drools-compiler (expert)
    Affects Versions: 5.2.0.M2
            Reporter: Wolfgang Laun
            Assignee: Mark Proctor


Foo( name == "\u041+" ) # incomplete nicode escape - only3 characters

Line and column numbers are very much off from the real numbers!

[123,6]: [ERR 102] Line 123:6 mismatched input ''
[0,0]: Line 1:0 unexpected exception at input 'package'. Exception: java.lang.NullPointerException. Stack trace:
 java.lang.NullPointerException
	at org.drools.lang.DroolsParserExceptionFactory.expectedTokensAsString(DroolsParserExceptionFactory.java:259)
	at org.drools.lang.DroolsParserExceptionFactory.createErrorMessage(DroolsParserExceptionFactory.java:188)
	at org.drools.lang.DroolsParserExceptionFactory.createDroolsException(DroolsParserExceptionFactory.java:100)
	at org.drools.lang.DRLLexer.reportError(DRLLexer.java:102)
	at org.antlr.runtime.Lexer.nextToken(Lexer.java:98)
	at org.antlr.runtime.CommonTokenStream.fillBuffer(CommonTokenStream.java:119)
	at org.antlr.runtime.CommonTokenStream.LT(CommonTokenStream.java:238)
	at org.antlr.runtime.CommonTokenStream.LA(CommonTokenStream.java:300)
	at org.drools.lang.DRLParser.compilationUnit(DRLParser.java:133)
	at org.drools.compiler.DrlParser.compile(DrlParser.java:225)
	at org.drools.compiler.DrlParser.parse(DrlParser.java:136)
	at org.drools.compiler.DrlParser.parse(DrlParser.java:141)
	at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:294)
	at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:473)
	at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:28)


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