[jira] [Created] (OAK-8218) ReadOnlyNodeTypeManager.isNodeType prone to NPE

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

angela created OAK-8218:
---------------------------

             Summary: ReadOnlyNodeTypeManager.isNodeType prone to NPE
                 Key: OAK-8218
                 URL: https://issues.apache.org/jira/browse/OAK-8218
             Project: Jackrabbit Oak
          Issue Type: Bug
          Components: core
            Reporter: angela


in the light of OAK-8216 and OAK-8212 i spotted a potential NPE in all variants of {{ReadOnlyNodeTypeManager.isNodeType}}: these methods pass the value of {{getTypes()}}, which might return {{null}}, to {{isa(Tree types, String typeName, String superName)}}, which does not check for the {{types}} parameter to be {{null}}.

i checked most extensions of {{ReadOnlyNodeTypeManager}} and non of them ever returns {{null}} because the usually just retrieve the tree at the node-types paths, which may or may not exist but {{Root.getTree}} never returns {{null}} (maybe it did in the early days of oak). anyway, this leaves me with the feeling that the 'nullable' annotation with {{ReadOnlyNodeTypeManager.isNodeType}} is wrong with  and should be 'notnull' instead. this would allow to annotate {{isa(Tree types, String typeName, String superName)}}
with notnull and avoid the extra check for null.... but at the end i would also be find with just adding a check for null in the {{isa}} method and mark the types param as nullable.

[~reschke], [~mreutegg], since you have been touching the {{ReadOnlyNodeTypeManager}} in the past, do you have any preference?




--
This message was sent by Atlassian JIRA
(v7.6.3#76005)