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  1. UIMA
  2. UIMA-1839

String-subtype features can't be set to null?

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: 2.3
    • Fix Version/s: 2.3.1SDK
    • Component/s: Core Java Framework
    • Labels:
      None

      Description

      If you try to set a string-subtype feature to null, you get a NullPointerException:
      java.lang.NullPointerException
      at java.lang.String.compareTo(String.java:1167)
      at java.lang.String.compareTo(String.java:92)
      at java.util.Arrays.binarySearch0(Arrays.java:2001)
      at java.util.Arrays.binarySearch(Arrays.java:1943)
      at org.apache.uima.cas.impl.CASImpl.ll_setStringValue(CASImpl.java:3203)
      at org.apache.uima.cas.impl.FeatureStructureImpl.setStringValue(FeatureStructureImpl.java:130)

      The documentation doesn't specifically address whether this is allowed, but my intuition was that it should be. For one thing, a string-subtype feature can have the value null when it is uninitialized, so why shouldn't I be able to explicitly set it to null?

      A simple way to replicate is to add the line
      fs.setStringValue(stringSetFeat, null);
      to the test case method StringSubtypeTest.testCas()

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            • Assignee:
              schor Marshall Schor
              Reporter:
              alally Adam Lally
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              • Created:
                Updated:
                Resolved: