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Wang Yanlin commented on CALCITE-3246: -------------------------------------- OK. And, any suggestion for update? > RelJsonReader throws NullPointerException while deserializing from JSON a > call to a user-defined function (UDF) > --------------------------------------------------------------------------------------------------------------- > > Key: CALCITE-3246 > URL: https://issues.apache.org/jira/browse/CALCITE-3246 > Project: Calcite > Issue Type: Bug > Components: core > Reporter: Wang Yanlin > Assignee: Chunwei Lei > Priority: Major > Labels: pull-request-available > Fix For: 1.21.0 > > Time Spent: 1h 50m > Remaining Estimate: 0h > > when deserializing of logical rel with udf operator, NPE occurs. > The exception stacktrace as follow. > {code:java} > java.lang.RuntimeException: java.lang.NullPointerException > at org.apache.calcite.tools.Frameworks.withPrepare(Frameworks.java:181) > at org.apache.calcite.tools.Frameworks.withPlanner(Frameworks.java:125) > at org.apache.calcite.tools.Frameworks.withPlanner(Frameworks.java:143) > at org.apache.calcite.plan.RelWriterTest.testUdf(RelWriterTest.java:598) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:498) > at > org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) > at > org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) > at > org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) > at > org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) > at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) > at > org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) > at > org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) > at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) > at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) > at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) > at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) > at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) > at org.junit.runners.ParentRunner.run(ParentRunner.java:363) > at org.junit.runner.JUnitCore.run(JUnitCore.java:137) > at > com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68) > at > com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47) > at > com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242) > at > com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70) > Caused by: java.lang.NullPointerException > at java.util.Objects.requireNonNull(Objects.java:203) > at org.apache.calcite.rex.RexCall.<init>(RexCall.java:83) > at org.apache.calcite.rex.RexBuilder.makeCall(RexBuilder.java:237) > at org.apache.calcite.rel.externalize.RelJson.toRex(RelJson.java:485) > at > org.apache.calcite.rel.externalize.RelJsonReader$2.getExpressionList(RelJsonReader.java:204) > at org.apache.calcite.rel.core.Project.<init>(Project.java:100) > at > org.apache.calcite.rel.logical.LogicalProject.<init>(LogicalProject.java:88) > at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) > at > sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) > at > sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) > at java.lang.reflect.Constructor.newInstance(Constructor.java:423) > at > org.apache.calcite.rel.externalize.RelJsonReader.readRel(RelJsonReader.java:261) > at > org.apache.calcite.rel.externalize.RelJsonReader.readRels(RelJsonReader.java:91) > at > org.apache.calcite.rel.externalize.RelJsonReader.read(RelJsonReader.java:85) > at > org.apache.calcite.plan.RelWriterTest.lambda$testUdf$7(RelWriterTest.java:603) > at > org.apache.calcite.tools.Frameworks.lambda$withPlanner$0(Frameworks.java:130) > at > org.apache.calcite.prepare.CalcitePrepareImpl.perform(CalcitePrepareImpl.java:915) > at org.apache.calcite.tools.Frameworks.withPrepare(Frameworks.java:179) > ... 25 more > {code} -- This message was sent by Atlassian Jira (v8.3.2#803003)