It does indeed look as if that piece of code (AggregateNode.java line 149) has never been run. Can you please log a JIRA case?
> On Mar 28, 2018, at 1:42 PM, Muhammad Gelbana <[email protected]> wrote: > > Looking at this line > <https://github.com/apache/calcite/blob/master/core/src/main/java/org/apache/calcite/interpreter/AggregateNode.java#L150>, > and the referenced instance variable > <https://github.com/apache/calcite/blob/master/core/src/main/java/org/apache/calcite/adapter/enumerable/AggImpState.java#L33>, > it looks to me that *int stateSize = agg.state.size* will always throw a > NPE because the *agg.state* object reference is never initialized before > it's being used ! > > I'm facing the following exception > > java.sql.SQLException: Error while executing SQL "SELECT MAX(COUNTRY_ID), > MAX(COUNTRY_TOTAL_ID) FROM SALES.COUNTRIES": null > at org.apache.calcite.avatica.Helper.createException(Helper.java:56) > at org.apache.calcite.avatica.Helper.createException(Helper.java:41) > at > org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:156) > at > org.apache.calcite.avatica.AvaticaStatement.executeQuery(AvaticaStatement.java:218) > at > com.mg.sqlinterface.data.provider.calcite.internal.Test_SQLi.testMG(Test_SQLi.java:35) > 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$2.evaluate(ParentRunner.java:268) > at > org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26) > at > org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27) > at org.junit.runners.ParentRunner.run(ParentRunner.java:363) > at > org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86) > at > org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) > at > org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459) > at > org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678) > at > org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382) > at > org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192) > Caused by: *java.lang.NullPointerException* > at org.apache.calcite.interpreter.AggregateNode.getAccumulator( > *AggregateNode.java:150*) > at > org.apache.calcite.interpreter.AggregateNode.<init>(AggregateNode.java:86) > at > org.apache.calcite.interpreter.Nodes$CoreCompiler.visit(Nodes.java:47) > 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.apache.calcite.util.ReflectUtil.invokeVisitorInternal(ReflectUtil.java:257) > at > org.apache.calcite.util.ReflectUtil.invokeVisitor(ReflectUtil.java:214) > at > org.apache.calcite.util.ReflectUtil$1.invokeVisitor(ReflectUtil.java:464) > at > org.apache.calcite.interpreter.Interpreter$Compiler.visit(Interpreter.java:480) > at > org.apache.calcite.interpreter.Interpreter$Compiler.visitRoot(Interpreter.java:437) > at > org.apache.calcite.interpreter.Interpreter.<init>(Interpreter.java:78) > at Baz.bind(Unknown Source) > at > org.apache.calcite.jdbc.CalcitePrepare$CalciteSignature.enumerable(CalcitePrepare.java:365) > at > org.apache.calcite.jdbc.CalciteConnectionImpl.enumerable(CalciteConnectionImpl.java:301) > at > org.apache.calcite.jdbc.CalciteMetaImpl._createIterable(CalciteMetaImpl.java:559) > at > org.apache.calcite.jdbc.CalciteMetaImpl.createIterable(CalciteMetaImpl.java:550) > at > org.apache.calcite.avatica.AvaticaResultSet.execute(AvaticaResultSet.java:204) > at > org.apache.calcite.jdbc.CalciteResultSet.execute(CalciteResultSet.java:67) > at > org.apache.calcite.jdbc.CalciteResultSet.execute(CalciteResultSet.java:44) > at > org.apache.calcite.avatica.AvaticaConnection$1.execute(AvaticaConnection.java:630) > at > org.apache.calcite.jdbc.CalciteMetaImpl.prepareAndExecute(CalciteMetaImpl.java:619) > at > org.apache.calcite.avatica.AvaticaConnection.prepareAndExecuteInternal(AvaticaConnection.java:638) > at > org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:149) > ... 27 more > > > Thanks, > Gelbana >
