[hibernate-issues] [Hibernate-JIRA] Created: (HHH-3715) NPE in HqlSqlWalker, if named parameter contains a "."

NPE in HqlSqlWalker, if named parameter contains a "." ------------------------------------------------------ Key: HHH-3715 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3715 Project: Hibernate Core Issue Type: Bug Components: query-hql Affects Versions: 3.3.1 Reporter: Andreas Sahlbach Priority: Minor Query used: select company from example.PersistentCompany as company join company.attributes as attr where attr.value like :id.krias With this query I got a NullPointerException in HqlSqlWalker (see Stacktrace below). After some debugging I changed my query to select company from example.PersistentCompany as company join company.attributes as attr where attr.value like :krias which works perfectly. I guess the parser misinterpretes the "." in the parametername as tries to resolve a "krias" property. The NPE occurs, because there is no "next sibling" for the "krias" node. I suggest to harden your code against such a parameter name. Error would be ok, if "." in parameter names are not allowed, but there should be no NPE which gives no real hint about the cause. Stacktrace: at org.hibernate.hql.ast.HqlSqlWalker.lookupProperty(HqlSqlWalker.java:466) at org.hibernate.hql.antlr.HqlSqlBaseWalker.addrExpr(HqlSqlBaseWalker.java:4.326) at org.hibernate.hql.antlr.HqlSqlBaseWalker.expr(HqlSqlBaseWalker.java:1.212) at org.hibernate.hql.antlr.HqlSqlBaseWalker.comparisonExpr(HqlSqlBaseWalker.java:3.672) at org.hibernate.hql.antlr.HqlSqlBaseWalker.logicalExpr(HqlSqlBaseWalker.java:1.762) at org.hibernate.hql.antlr.HqlSqlBaseWalker.whereClause(HqlSqlBaseWalker.java:776) at org.hibernate.hql.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:577) at org.hibernate.hql.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:281) at org.hibernate.hql.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:229) at org.hibernate.hql.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:251) at org.hibernate.hql.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:183) at org.hibernate.hql.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:134) at org.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:101) at org.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:80) at org.hibernate.engine.query.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:94) at org.hibernate.impl.AbstractSessionImpl.getHQLQueryPlan(AbstractSessionImpl.java:156) at org.hibernate.impl.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:135) at org.hibernate.impl.SessionImpl.createQuery(SessionImpl.java:1.650) [...my classes from here on] -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira