2020-12-16 12:59:48.108 ERROR 3252 --- [rocessorQueue85] org.teiid.PROCESSOR : TEIID30019 Unexpected exception for request YkOm3xkv5otS.3 java.lang.NullPointerException: null at java.base/java.util.ArrayList.(ArrayList.java:179) at org.teiid.query.optimizer.relational.rules.RulePlanSubqueries.planMergeJoin(RulePlanSubqueries.java:470) at org.teiid.query.optimizer.relational.rules.RulePlanSubqueries.planMergeJoin(RulePlanSubqueries.java:279) at org.teiid.query.optimizer.relational.rules.RulePlanSubqueries.processSubqueries(RulePlanSubqueries.java:222) at org.teiid.query.optimizer.relational.rules.RulePlanSubqueries.processSubqueries(RulePlanSubqueries.java:259) at org.teiid.query.optimizer.relational.rules.RulePlanSubqueries.execute(RulePlanSubqueries.java:206) at org.teiid.query.optimizer.relational.RelationalPlanner.executeRules(RelationalPlanner.java:1101) at org.teiid.query.optimizer.relational.RelationalPlanner.optimize(RelationalPlanner.java:235) at org.teiid.query.optimizer.QueryOptimizer.optimizePlan(QueryOptimizer.java:181) at org.teiid.dqp.internal.process.Request.generatePlan(Request.java:488) at org.teiid.dqp.internal.process.Request.processRequest(Request.java:516) at org.teiid.dqp.internal.process.RequestWorkItem.processNew(RequestWorkItem.java:671) at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:350) at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:43) at org.teiid.dqp.internal.process.RequestWorkItem.run(RequestWorkItem.java:284) at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:283) at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:124) at org.teiid.dqp.internal.process.ThreadReuseExecutor$2.run(ThreadReuseExecutor.java:212) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.lang.Thread.run(Thread.java:834)