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  1. JBRULES
  2. JBRULES-2689

[drools-spring] KnowledgeSessionDefinitionParser generates nullpointerexception on parsing spring xml file due to missing class attribute on bean

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Details

    • Bug
    • Resolution: Duplicate
    • Minor
    • 5.2.0.M1
    • 5.1.0.FINAL
    • None
    • None
    • Workaround Exists
    • Hide

      Avoid the use of the inheritance using the parent attribute; use class instead.

      Show
      Avoid the use of the inheritance using the parent attribute; use class instead.
    • Low

    Description

      The error below is generated on application load when a spring bean does not specify the class attribute. Spring beans do not need to specify the class attribute as it can use the attribute parent to inherit other spring beans.

      Caused by: java.lang.NullPointerException
      at org.drools.container.spring.namespace.KnowledgeSessionDefinitionParser.parseInternal(KnowledgeSessionDefinitionParser.java:287)
      at org.springframework.beans.factory.xml.AbstractBeanDefinitionParser.parse(AbstractBeanDefinitionParser.java:59)
      at org.springframework.beans.factory.xml.NamespaceHandlerSupport.parse(NamespaceHandlerSupport.java:73)
      at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1335)
      at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1325)
      at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:136)
      at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:93)
      at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions(XmlBeanDefinitionReader.java:493)
      at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:390)

      The equals comparison on 287 should be reversed to avoidthe null pointer exception but it should also take the class of the parent into account if it has been defined.

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          duplicates

          Bug - A problem that impairs or prevents the functions of the product. JBRULES-2727 NullPointerException due to abstract Spring beans in KnowledgeSessionDefinitionParser

          • Blocker - To be worked above all other priorities. This term is chosen when the severity of the issue is very high, has no workaround, or the effort for the change is comparatively low. Issues that may be very publicly visible and could generate significant media attention may also drive a higher priority.
          • Resolved
          is duplicated by

          Patch - An improvement or enhancement to an existing feature or task. Includes patches submitted by community commiters. JBPM-3024 JBPM5/Drools, Spring integration and NullPointer - could a commiter apply a simple patch already?

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Resolved

          Activity

            People

              kverlaen@redhat.com Kris Verlaenen
              david.coleman David Coleman (Inactive)
              Archiver:
              rhn-support-ceverson Clark Everson

              Dates

                Created:
                Updated:
                Resolved:
                Archived:

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