November 2011 - jboss-jira - Jboss List Archives

[JBoss JIRA] Created: (JBRULES-3057) Misleading error message for missing constructor

by Wolfgang Laun (JIRA)

Misleading error message for missing constructor ------------------------------------------------ Key: JBRULES-3057 URL: https://issues.jboss.org/browse/JBRULES-3057 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-compiler (expert) Affects Versions: 5.2.0.CR1 Reporter: Wolfgang Laun Assignee: Mark Proctor Fix For: 5.2.0 If an undeclared constructor is called in a consequence, a very strange error message is produced: - error text is "Failed to compileShared" ("Shared" is not used by the app) - The message part meant ot identify the location of the error is misleanding, e.g., Near : {... p3.setName( "Paul" ); ....} with the marker ("^") pointing to "Paul". public static class Person { private String name; public Person(String name){ this.name = name; } public String getField1() { return field1; } public void setName( String name ) { this.name = name; } public String getName() { return name; } } @Test public void testExistsIterativeModifyBug() { String str = ""; str += "package org.simple "; str += "import Person "; str += "rule xxx "; str += "when "; str += "then "; str += " Person = new Person() "; str += "end "; KnowledgeBase kbase = loadKnowledgeBaseFromString( str ); assertFalse( kBuilder.hasErrors() ); StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession(); ksession.fireAllRules(); ksession.dispose(); } -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years

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[JBoss JIRA] Created: (JBRULES-3026) drools-camel-server and guvnor-webapp: Do not use the dependency cxf-bundle-jaxrs because it's an uber jar that disrupts our dependency graph

by Geoffrey De Smet (JIRA)

drools-camel-server and guvnor-webapp: Do not use the dependency cxf-bundle-jaxrs because it's an uber jar that disrupts our dependency graph --------------------------------------------------------------------------------------------------------------------------------------------- Key: JBRULES-3026 URL: https://issues.jboss.org/browse/JBRULES-3026 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Affects Versions: 5.2.0.M2 Reporter: Geoffrey De Smet Assignee: Geoffrey De Smet Priority: Critical Fix For: 5.2.0.CR1 cxf-bundle-jaxrs isn't mentioned in here: http://cxf.apache.org/docs/using-cxf-with-maven.html it pulls in a lot we don't need and we try to exclude what we don't need (but fail at it). -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years

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[JBoss JIRA] Created: (JBRULES-3014) Too many error messages (and stack dumps!) due to simple syntax error

by Wolfgang Laun (JIRA)

Too many error messages (and stack dumps!) due to simple syntax error --------------------------------------------------------------------- Key: JBRULES-3014 URL: https://issues.jboss.org/browse/JBRULES-3014 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 Fix For: 5.2.0.CR1 Person( age > ($age * 2) ) ) ### typo - note the redundant ')' This produces nested Empty Stack and Class Cast Exceptions, lots of stack dumps and three error messages: [0,0]: Line 30:0 unexpected exception at input 'rule'. Exception: java.util.EmptyStackException. Stack trace: java.util.EmptyStackException at java.util.Stack.peek(Stack.java:85) at java.util.Stack.pop(Stack.java:67) at org.drools.lang.ParserHelper.popParaphrases(ParserHelper.java:409) at org.drools.lang.ParserHelper.end(ParserHelper.java:723) at org.drools.lang.DRLParser.rule(DRLParser.java:915) at org.drools.lang.DRLParser.statement(DRLParser.java:248) at org.drools.lang.DRLParser.compilationUnit(DRLParser.java:143) 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:307) at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:486) at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:28) at express.Main.setup(Main.java:48) at express.Main.main(Main.java:92) [0,0]: Line 31:8 unexpected exception at input '"mvel"'. Exception: java.lang.ClassCastException: org.drools.lang.api.CEDescrBuilderImpl cannot be cast to org.drools.lang.api.AttributeSupportBuilder. Stack trace: java.lang.ClassCastException: org.drools.lang.api.CEDescrBuilderImpl cannot be cast to org.drools.lang.api.AttributeSupportBuilder at org.drools.lang.ParserHelper.start(ParserHelper.java:667) at org.drools.lang.DRLParser.stringAttribute(DRLParser.java:1294) at org.drools.lang.DRLParser.attribute(DRLParser.java:1073) at org.drools.lang.DRLParser.statement(DRLParser.java:257) at org.drools.lang.DRLParser.compilationUnit(DRLParser.java:143) 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:307) at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:486) at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:28) at express.Main.setup(Main.java:48) at express.Main.main(Main.java:92) [31,8]: [ERR 107] Line 31:8 mismatched input '"mvel"' expecting one of the following tokens: '[package, import, global, declare, function, rule, query]'. [0,0]: Line 39:0 unexpected exception at input 'rule'. Exception: java.util.EmptyStackException. Stack trace: java.util.EmptyStackException at java.util.Stack.peek(Stack.java:85) at java.util.Stack.pop(Stack.java:67) at org.drools.lang.ParserHelper.popParaphrases(ParserHelper.java:409) at org.drools.lang.ParserHelper.end(ParserHelper.java:723) at org.drools.lang.DRLParser.rule(DRLParser.java:915) at org.drools.lang.DRLParser.statement(DRLParser.java:248) at org.drools.lang.DRLParser.compilationUnit(DRLParser.java:143) 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:307) at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:486) at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:28) at express.Main.setup(Main.java:48) at express.Main.main(Main.java:92) -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years

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[JBoss JIRA] Created: (JBRULES-3011) Incorrect salience expression => CCE at runtime

by Wolfgang Laun (JIRA)

Incorrect salience expression => CCE at runtime ----------------------------------------------- Key: JBRULES-3011 URL: https://issues.jboss.org/browse/JBRULES-3011 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 Fix For: 5.2.0.CR1 function int FSAL(){ return 100; } rule insFirst salience ( FSAL ) ## Oops, forgot the parens... when then end No compile-time error. At runtime we get: Exception in thread "main" org.drools.RuntimeDroolsException: Unexpected exception executing action org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction@354749 at org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:996) at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:730) at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:699) at org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:218) at express.Main.execute(Main.java:71) at express.Main.main(Main.java:93) Caused by: java.lang.ClassCastException: org.mvel2.util.MethodStub cannot be cast to java.lang.Number at org.drools.base.mvel.MVELSalienceExpression.getValue(MVELSalienceExpression.java:86) at org.drools.reteoo.RuleTerminalNode.assertLeftTuple(RuleTerminalNode.java:215) at org.drools.reteoo.SingleLeftTupleSinkAdapter.doPropagateAssertLeftTuple(SingleLeftTupleSinkAdapter.java:189) at org.drools.reteoo.SingleLeftTupleSinkAdapter.createAndPropagateAssertLeftTuple(SingleLeftTupleSinkAdapter.java:138) at org.drools.reteoo.LeftInputAdapterNode.assertObject(LeftInputAdapterNode.java:141) at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:59) at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:185) at org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:143) at org.drools.reteoo.Rete.assertObject(Rete.java:107) at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:260) at org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction.execute(ReteooWorkingMemory.java:343) at org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:994) ... 5 more -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years

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[JBoss JIRA] Created: (JBRULES-3070) Incorrect relational operator usage accepted by compiler

by Wolfgang Laun (JIRA)

Incorrect relational operator usage accepted by compiler -------------------------------------------------------- Key: JBRULES-3070 URL: https://issues.jboss.org/browse/JBRULES-3070 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-compiler (expert) Affects Versions: 5.2.0.CR1 Reporter: Wolfgang Laun Assignee: Mark Proctor Fix For: 5.2.0 Given class Person { int age; ... } the following pattern can be written Person( $name: name, age > 20 > 50 ) And the pattern matches all Person facts with an age > 50. a) This should cause an error: a boolean (age > 20) cannot be compared with an integer (50) b) The result implies that some strange interpretation is in effect. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years

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[JBoss JIRA] Created: (JBRULES-3059) declare: inconsistent behaviour w.r.t. field redefinition

by Wolfgang Laun (JIRA)

declare: inconsistent behaviour w.r.t. field redefinition --------------------------------------------------------- Key: JBRULES-3059 URL: https://issues.jboss.org/browse/JBRULES-3059 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-compiler (expert) Affects Versions: 5.2.0.CR1 Reporter: Wolfgang Laun Assignee: Mark Proctor Fix For: 5.2.0 import Person declare Person name : String = "Joe" @key # here only @key is recognized; the initialization is not done end declare Employee extends Person custno : int @key name : String = "Joe" @key # here @key and initialization are recognized end If it cannot be honoured, the initialization should cause an error. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years

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[JBoss JIRA] Created: (JBRULES-3071) NPE in Pattern Builder (invalid unification usage)

by Wolfgang Laun (JIRA)

NPE in Pattern Builder (invalid unification usage) -------------------------------------------------- Key: JBRULES-3071 URL: https://issues.jboss.org/browse/JBRULES-3071 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-compiler (expert) Affects Versions: 5.2.0.CR1 Reporter: Wolfgang Laun Assignee: Mark Proctor Fix For: 5.2.0 class Person { String name; } $p1: Person( $name := name, age < 20 ) $p2: Person( $name; ) Exception in thread "main" java.lang.NullPointerException at org.drools.rule.builder.PatternBuilder.processPositional(PatternBuilder.java:372) at org.drools.rule.builder.PatternBuilder.processConstraintsAndBinds(PatternBuilder.java:341) at org.drools.rule.builder.PatternBuilder.build(PatternBuilder.java:262) at org.drools.rule.builder.PatternBuilder.build(PatternBuilder.java:120) at org.drools.rule.builder.GroupElementBuilder.build(GroupElementBuilder.java:65) at org.drools.rule.builder.RuleBuilder.build(RuleBuilder.java:81) at org.drools.compiler.PackageBuilder.addRule(PackageBuilder.java:1769) at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:743) at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:358) at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:536) at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:28) -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years

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[JBoss JIRA] Created: (JBRULES-3060) Very odd error message due to unknow class

by Wolfgang Laun (JIRA)

Very odd error message due to unknow class ------------------------------------------ Key: JBRULES-3060 URL: https://issues.jboss.org/browse/JBRULES-3060 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-compiler (expert) Affects Versions: 5.2.0.CR1 Reporter: Wolfgang Laun Assignee: Mark Proctor Fix For: 5.2.0 rule x when then X x = new Integer( 42 ); end without an import or declare for X causes: Unable to Analyse Expression X x = new Integer( 42 );: [Error: unknown class or illegal statement: org.mvel2.ParserContext@1e1be92] [Near : {... X x = new Integer( 42 ); ....}] ^ [Line: 1, Column: 7] Note: (1) org.mvel2.ParserContext! Note: (2) The line number is relative to "then", but you'll have to guess that! -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years

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[JBoss JIRA] Created: (JBRULES-3058) initializations in declare not applied for non-default constructor

by Wolfgang Laun (JIRA)

initializations in declare not applied for non-default constructor ------------------------------------------------------------------ Key: JBRULES-3058 URL: https://issues.jboss.org/browse/JBRULES-3058 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-compiler (expert) Affects Versions: 5.2.0.CR1 Reporter: Wolfgang Laun Assignee: Mark Proctor Fix For: 5.2.0 declare Person name : String @key nick : String = "Joe" end It can be shown that after Person p = new Person(); assert "Joe".equals( p.getNick() ); However after Person p = new Person( "Smith" ); assert p.getNick() == null; -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years

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[JBoss JIRA] Created: (JBRULES-3089) position of "dialect 'mvel'" affects function and/or rule parsing (NPE)

by Wolfgang Laun (JIRA)

position of "dialect 'mvel'" affects function and/or rule parsing (NPE) ----------------------------------------------------------------------- Key: JBRULES-3089 URL: https://issues.jboss.org/browse/JBRULES-3089 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-compiler (expert) Affects Versions: 5.2.0.CR1 Reporter: Wolfgang Laun Assignee: Mark Proctor Fix For: 5.2.0 The DRL shown below does not compile. Exchanging dialect and function fixes the problem, as does removing the dialect stmt. entirely. dialect "mvel" function boolean ping( String x ){ System.out.println( "ping " + x ); return true; } rule exa4 when eval( ping("A") ) then System.out.println( "Hello world!" ); end Unable to Analyse Expression ping("A"): [Error: unable to resolve method using strict-mode: java.lang.Object.ping(java.lang.String)] [Near : {... ping("A") ....}] ^ [Line: 1, Column: 1] : [Rule name='exa4'] Unable to build expression for 'eval':null 'ping("A")' : [Rule name='exa4'] java.lang.NullPointerException -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years

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jboss-jira November 2011