[jira] [Created] (OAK-510) Multivalued properties with array size 0 forget their type

["angela (JIRA)" <ji...@apache.org>]

angela created OAK-510:
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             Summary: Multivalued properties with array size 0 forget their type
                 Key: OAK-510
                 URL: https://issues.apache.org/jira/browse/OAK-510
             Project: Jackrabbit Oak
          Issue Type: Bug
          Components: core, jcr
            Reporter: angela


thought i remember that i have seen a related TODO or issue before, i
couldn't find it any more... sorry for that.

while cleaning up the node type code i found that one FIXME in the 
ReadOnlyNodeTypeManager related to definition generation was only needed
because the TypeValidator failed upon validation of an empty jcr:supertypes
definition. not storing the super types if none has be declared solved the
problem for the time being.

however, it seems to me that the underlying problem is in a completely
different area: namely that mv properties with an empty value array
forget their type.

this can be verified with the following test:
{code}
    @Test
    public void addEmptyMultiValueName() throws RepositoryException {
        Node parentNode = getNode(TEST_PATH);
        Value[] values = new Value[0];

        parentNode.setProperty("multi name", values);
        parentNode.getSession().save();

        Session session2 = createAnonymousSession();
        try {
            Property property = session2.getProperty(TEST_PATH + "/multi name");
            assertTrue(property.isMultiple());
            assertEquals(PropertyType.NAME, property.getType());
            Value[] values2 = property.getValues();
            assertEquals(values.length, values2.length);
            assertEquals(values[0], values2[0]);
            assertEquals(values[1], values2[1]);
        } finally {
            session2.logout();
        }
    }
{code}

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