NPE when query in query exporter is not defined

Create Query Exporter and do not define query property, you'll get:

java.lang.NullPointerException
at org.hibernate.engine.query.QueryPlanCache$HQLQueryPlanKey.<init>(QueryPlanCache.java:203)
at org.hibernate.engine.query.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:91)
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:1760)
at org.hibernate.tool.hbm2x.QueryExporter.doStart(QueryExporter.java:36)
at org.hibernate.tool.hbm2x.AbstractExporter.start(AbstractExporter.java:95)
at org.hibernate.eclipse.launch.CodeGenerationLaunchDelegate$1.execute(CodeGenerationLaunchDelegate.java:354)
at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:63)
at org.hibernate.console.ConsoleConfiguration.execute(ConsoleConfiguration.java:71)
at org.hibernate.eclipse.launch.CodeGenerationLaunchDelegate.runExporters(CodeGenerationLaunchDelegate.java:329)
at org.hibernate.eclipse.launch.CodeGenerationLaunchDelegate.launch(CodeGenerationLaunchDelegate.java:256)
at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:853)
at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:702)
at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:923)
at org.eclipse.debug.internal.ui.DebugUIPlugin$8.run(DebugUIPlugin.java:1126)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)