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Drools is a rule engine, DMN engine and complex event processing (CEP) engine for Java.
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[new-parser] NPE caused by an empty DRL input #5893

Closed yurloc closed 6 months ago

yurloc commented 6 months ago

Parent issue

Failing tests

Rule code snippet

Error output

22:38:57,697 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Found resource [logback-test.xml] at [file:/var/home/jlocker/src/github.com/kiegroup/drools/drools-test-coverage/test-suite/target/test-classes/logback-test.xml]
22:38:57,698 |-WARN in ch.qos.logback.classic.LoggerContext[default] - Resource [logback-test.xml] occurs multiple times on the classpath.
22:38:57,698 |-WARN in ch.qos.logback.classic.LoggerContext[default] - Resource [logback-test.xml] occurs at [file:/var/home/jlocker/src/github.com/kiegroup/drools/drools-test-coverage/test-suite/target/test-classes/logback-test.xml]
22:38:57,698 |-WARN in ch.qos.logback.classic.LoggerContext[default] - Resource [logback-test.xml] occurs at [file:/var/home/jlocker/src/github.com/kiegroup/drools/drools-base/target/test-classes/logback-test.xml]
22:38:57,698 |-WARN in ch.qos.logback.classic.LoggerContext[default] - Resource [logback-test.xml] occurs at [file:/var/home/jlocker/src/github.com/kiegroup/drools/drools-core/target/test-classes/logback-test.xml]
22:38:57,698 |-WARN in ch.qos.logback.classic.LoggerContext[default] - Resource [logback-test.xml] occurs at [file:/var/home/jlocker/src/github.com/kiegroup/drools/drools-legacy-test-util/target/test-classes/logback-test.xml]
22:38:57,781 |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction - debug attribute not set
22:38:57,781 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - About to instantiate appender of type [ch.qos.logback.core.ConsoleAppender]
22:38:57,789 |-INFO in ch.qos.logback.core.joran.action.AppenderAction - Naming appender as [consoleAppender]
22:38:57,796 |-INFO in ch.qos.logback.core.joran.action.NestedComplexPropertyIA - Assuming default type [ch.qos.logback.classic.encoder.PatternLayoutEncoder] for [encoder] property
22:38:57,884 |-INFO in ch.qos.logback.classic.joran.action.LoggerAction - Setting level of logger [org.kie] to WARN
22:38:57,884 |-INFO in ch.qos.logback.classic.joran.action.LoggerAction - Setting level of logger [org.drools] to WARN
22:38:57,884 |-INFO in ch.qos.logback.classic.joran.action.LoggerAction - Setting level of logger [org.drools.compiler.kie.builder.impl] to ERROR
22:38:57,884 |-INFO in ch.qos.logback.classic.joran.action.RootLoggerAction - Setting level of ROOT logger to WARN
22:38:57,884 |-INFO in ch.qos.logback.core.joran.action.AppenderRefAction - Attaching appender named [consoleAppender] to Logger[ROOT]
22:38:57,885 |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction - End of configuration.
22:38:57,885 |-INFO in ch.qos.logback.classic.joran.JoranConfigurator@1f1c7bf6 - Registering current configuration as safe fallback point

22:38:58.282 [main] WARN  o.k.m.i.embedder.MavenSettings.initSettings:107 - Environment variable M2_HOME is not set
### parse : ANTLR4_PARSER_ENABLED = true
22:38:59.745 [main] ERROR o.d.d.parser.antlr4.DRLParserWrapper.parse:77 - Exception while creating PackageDescr
java.lang.NullPointerException: Cannot invoke "org.antlr.v4.runtime.Token.getStopIndex()" because the return value of "org.antlr.v4.runtime.ParserRuleContext.getStop()" is null
    at org.drools.drl.parser.antlr4.DescrHelper.populateCommonProperties(DescrHelper.java:55)
    at org.drools.drl.parser.antlr4.BaseDescrFactory$Builder.withParserRuleContext(BaseDescrFactory.java:52)
    at org.drools.drl.parser.antlr4.DRLVisitorImpl.visitCompilationUnit(DRLVisitorImpl.java:97)
    at org.drools.drl.parser.antlr4.DRLVisitorImpl.visitCompilationUnit(DRLVisitorImpl.java:83)
    at org.drools.drl.parser.antlr4.DRLParser$CompilationUnitContext.accept(DRLParser.java:435)
    at org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
    at org.drools.drl.parser.antlr4.DRLParserHelper.compilationUnitContext2PackageDescr(DRLParserHelper.java:91)
    at org.drools.drl.parser.antlr4.DRLParserWrapper.parse(DRLParserWrapper.java:75)
    at org.drools.drl.parser.antlr4.DRLParserWrapper.parse(DRLParserWrapper.java:55)
    at org.drools.drl.parser.DrlParser.lambda$parse$2(DrlParser.java:191)
    at org.drools.drl.parser.DrlParser.compileWithAntlr4Parser(DrlParser.java:204)
    at org.drools.drl.parser.DrlParser.parse(DrlParser.java:191)
    at org.drools.drl.parser.DrlParser.parse(DrlParser.java:179)
    at org.drools.drl.parser.DrlParser.parse(DrlParser.java:168)
    at org.drools.compiler.builder.impl.resources.DrlResourceHandler.process(DrlResourceHandler.java:55)
    at org.drools.compiler.builder.impl.PackageDescrBuilder.buildResource(PackageDescrBuilder.java:73)
    at org.drools.compiler.builder.impl.PackageDescrBuilder.build(PackageDescrBuilder.java:51)
    at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.buildPackageDescr(CompositeKnowledgeBuilderImpl.java:173)
    at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.build(CompositeKnowledgeBuilderImpl.java:116)
    at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.build(CompositeKnowledgeBuilderImpl.java:109)
    at org.drools.compiler.kie.builder.impl.AbstractKieProject.buildKnowledgePackages(AbstractKieProject.java:274)
    at org.drools.compiler.kie.builder.impl.AbstractKieProject.buildKnowledgePackages(AbstractKieProject.java:220)
    at org.drools.compiler.kie.builder.impl.AbstractKieProject.verify(AbstractKieProject.java:84)
    at org.drools.compiler.kie.builder.impl.KieBuilderImpl.buildKieProject(KieBuilderImpl.java:285)
    at org.drools.compiler.kie.builder.impl.KieBuilderImpl.buildAll(KieBuilderImpl.java:251)
    at org.drools.compiler.kie.builder.impl.KieBuilderImpl.buildAll(KieBuilderImpl.java:208)
    at org.drools.testcoverage.common.util.KieUtil.getKieBuilderFromKieFileSystem(KieUtil.java:149)
    at org.drools.testcoverage.common.util.KieUtil.getKieBuilderFromKieFileSystem(KieUtil.java:134)
    at org.drools.testcoverage.common.util.KieUtil.buildAndInstallKieModuleIntoRepo(KieUtil.java:78)
    at org.drools.testcoverage.common.util.KieUtil.buildAndInstallKieModuleIntoRepo(KieUtil.java:72)
    at org.drools.testcoverage.common.util.KieUtil.getKieModuleFromResources(KieUtil.java:249)
    at org.drools.testcoverage.common.util.KieUtil.getKieModuleFromResources(KieUtil.java:238)
    at org.drools.testcoverage.common.util.KieBaseUtil.getKieBaseFromKieModuleFromResources(KieBaseUtil.java:102)
    at org.drools.testcoverage.common.util.KieBaseUtil.getKieBaseFromKieModuleFromDrl(KieBaseUtil.java:115)
    at org.drools.testcoverage.regression.MultipleKieBaseListenersTest.testKnowledgeBaseEventSupportLeak(MultipleKieBaseListenersTest.java:53)
22:38:59.759 [main] ERROR o.d.c.k.b.impl.AbstractKieProject.buildKnowledgePackages:280 - Unable to build KieBaseModel:KieBaseModelName
[0,0]: 
[0,0]: Parser returned a null Package

22:38:59.765 [main] ERROR o.d.testcoverage.common.util.KieUtil.getKieBuilderFromKieFileSystem:165 - KieBuilder errors: [Message [id=1, kieBase=KieBaseModelName, level=ERROR, path=rules1.drl, line=0, column=0
   text=], Message [id=2, kieBase=KieBaseModelName, level=ERROR, path=rules1.drl, line=0, column=0
   text=Parser returned a null Package]]

java.lang.AssertionError: [[Message [id=1, kieBase=KieBaseModelName, level=ERROR, path=rules1.drl, line=0, column=0
   text=], Message [id=2, kieBase=KieBaseModelName, level=ERROR, path=rules1.drl, line=0, column=0
   text=Parser returned a null Package]]] 
Expecting empty but was: [Message [id=1, kieBase=KieBaseModelName, level=ERROR, path=rules1.drl, line=0, column=0
   text=],
    Message [id=2, kieBase=KieBaseModelName, level=ERROR, path=rules1.drl, line=0, column=0
   text=Parser returned a null Package]]

    at org.drools.testcoverage.common.util.KieUtil.getKieBuilderFromKieFileSystem(KieUtil.java:169)
    at org.drools.testcoverage.common.util.KieUtil.getKieBuilderFromKieFileSystem(KieUtil.java:134)
    at org.drools.testcoverage.common.util.KieUtil.buildAndInstallKieModuleIntoRepo(KieUtil.java:78)
    at org.drools.testcoverage.common.util.KieUtil.buildAndInstallKieModuleIntoRepo(KieUtil.java:72)
    at org.drools.testcoverage.common.util.KieUtil.getKieModuleFromResources(KieUtil.java:249)
    at org.drools.testcoverage.common.util.KieUtil.getKieModuleFromResources(KieUtil.java:238)
    at org.drools.testcoverage.common.util.KieBaseUtil.getKieBaseFromKieModuleFromResources(KieBaseUtil.java:102)
    at org.drools.testcoverage.common.util.KieBaseUtil.getKieBaseFromKieModuleFromDrl(KieBaseUtil.java:115)
    at org.drools.testcoverage.regression.MultipleKieBaseListenersTest.testKnowledgeBaseEventSupportLeak(MultipleKieBaseListenersTest.java:53)
yurloc commented 6 months ago

/take