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https://issues.apache.org/jira/browse/DIRSERVER-1357?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12713299#action_12713299
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Stefan Seelmann commented on DIRSERVER-1357:
--------------------------------------------
But the server must protect itself to run into an inconsistent state and f***
up its database.
Maybe the simples thing - when deleting an entry - is to check if there is
still an alias pointing to the entry. And if so throw an exception (53
Unwilling to perfom). Just as a quick fix to get 1.5.5 out.
> NullPointerException when deleting alias
> ----------------------------------------
>
> Key: DIRSERVER-1357
> URL: https://issues.apache.org/jira/browse/DIRSERVER-1357
> Project: Directory ApacheDS
> Issue Type: Bug
> Components: core
> Affects Versions: 1.5.5, 1.5.4
> Reporter: Stefan Seelmann
> Fix For: 1.5.5
>
> Attachments: DIRSERVER_1357.java
>
>
> There is a NPE when deleting an alias entry is some special case. Here is a
> example DIT:
> ou=system
> |--ou=sales
> | |--cn=foo <--real entry
> |--ou=engineering
> |--cn=foo <--alias, pointing to the real entry
> When I first delete the real entry and afterwards the alias the server throws
> an exception, when it cleans the oneAliasIdx and subAliasIdx in the
> JdbmStore. Note, the exception does not occur if the real entry and alias are
> direct descendants of the context entry, because in that case the oneAliasIdx
> and subAliasIdx are not used.
> java.lang.NullPointerException
> at
> org.apache.directory.server.core.partition.impl.btree.LongComparator.compare(LongComparator.java:45)
> at
> org.apache.directory.server.core.partition.impl.btree.LongComparator.compare(LongComparator.java:1)
> at
> org.apache.directory.server.core.avltree.AvlTree.find(AvlTree.java:661)
> at
> org.apache.directory.server.core.avltree.AvlTree.remove(AvlTree.java:217)
> at
> org.apache.directory.server.core.partition.impl.btree.jdbm.JdbmTable.remove(JdbmTable.java:662)
> at
> org.apache.directory.server.core.partition.impl.btree.jdbm.JdbmIndex.drop(JdbmIndex.java:468)
> at
> org.apache.directory.server.core.partition.impl.btree.jdbm.JdbmStore.dropAliasIndices(JdbmStore.java:822)
> at
> org.apache.directory.server.core.partition.impl.btree.jdbm.JdbmStore.delete(JdbmStore.java:1098)
> at
> org.apache.directory.server.core.partition.impl.btree.jdbm.JdbmPartition.delete(JdbmPartition.java:487)
> at
> org.apache.directory.server.core.partition.impl.btree.BTreePartition.delete(BTreePartition.java:217)
> at
> org.apache.directory.server.core.partition.DefaultPartitionNexus.delete(DefaultPartitionNexus.java:824)
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