NPE when execute query (join via 1:n reference) on objects using
"table-per-subclass"-inheritance
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Key: OJB-94
URL: http://issues.apache.org/jira/browse/OJB-94
Project: OJB
Type: Bug
Versions: 1.0.4
Reporter: Armin Waibel
The NPE is caused by SqlQueryStatement.buildSuperJoinTree
Criteria crit = new Criteria()
.addEqualTo("name", consortium.getName())
.addEqualTo("managers.executives.address", name + "_street_12")
.addEqualTo("managers.name", name + "_Manager");
Query q = QueryFactory.newQuery(Consortium.class, crit);
Caused by: java.lang.NullPointerException
at
org.apache.ojb.broker.accesslayer.sql.SqlQueryStatement.buildSuperJoinTree(SqlQueryStatement.java:1798)
at
org.apache.ojb.broker.accesslayer.sql.SqlQueryStatement.getTableAlias(SqlQueryStatement.java:1210)
at
org.apache.ojb.broker.accesslayer.sql.SqlQueryStatement.buildJoinTreeForColumn(SqlQueryStatement.java:1774)
at
org.apache.ojb.broker.accesslayer.sql.SqlQueryStatement.buildJoinTree(SqlQueryStatement.java:1751)
at
org.apache.ojb.broker.accesslayer.sql.SqlQueryStatement.splitCriteria(SqlQueryStatement.java:1855)
at
org.apache.ojb.broker.accesslayer.sql.SqlQueryStatement.<init>(SqlQueryStatement.java:154)
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