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

[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();
    }




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