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From "Song Yihan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (OLINGO-1219) When nullable key is defined Encoder would throw NPE
Date Wed, 03 Jan 2018 07:29:00 GMT
Song Yihan created OLINGO-1219:

             Summary: When nullable key is defined Encoder would throw NPE
                 Key: OLINGO-1219
                 URL: https://issues.apache.org/jira/browse/OLINGO-1219
             Project: Olingo
          Issue Type: Bug
          Components: odata2-core
    Affects Versions: V2 2.0.9
            Reporter: Song Yihan
             Fix For: V2 2.0.10

in current Encoder implementation, if given input is null, an NPE would be thrown

The scenario would be, consider an Entity which key is allowed to be null in Edmx, thus, the
data retrieved in data source would be a HashMap only with non-null value, when createEntryKey<-createSelfLink,
we generate the key representation from the given data, some of the key would be null and
passed to Encoder, which would throw NullPointerException and skip the check of its corresponding

if (value == null) {
      if (facets == null || facets.isNullable() == null || facets.isNullable()) {
        return null;
      } else {
        throw new EdmSimpleTypeException(EdmSimpleTypeException.VALUE_NULL_NOT_ALLOWED);

A pull request has been created aim to fix it at https://github.com/apache/olingo-odata2/pull/14

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