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https://issues.apache.org/jira/browse/CALCITE-4136?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17162656#comment-17162656
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Stamatis Zampetakis commented on CALCITE-4136:
----------------------------------------------
The problem was raised by [~eolivelli] and [~rubenql]. Can you please fill in
the environment section with the JDK and the version that you are using?
> ReduceExpressionsRule.FILTER_INSTANCE cannot be initialized by some JVM
> -----------------------------------------------------------------------
>
> Key: CALCITE-4136
> URL: https://issues.apache.org/jira/browse/CALCITE-4136
> Project: Calcite
> Issue Type: Bug
> Components: core
> Reporter: Stamatis Zampetakis
> Priority: Major
>
> In certain JVM implementations the field cannot be initialized leading to
> {{NullPointerException}} when using the rule.
> Few stacktraces are given below:
> {noformat}
> Caused by: java.lang.NullPointerException: at index 0
> at
> com.onwbp.com.google.common.collect.ObjectArrays.checkElementNotNull(ObjectArrays.java:239)
> at
> com.onwbp.com.google.common.collect.ObjectArrays.checkElementsNotNull(ObjectArrays.java:230)
> at
> com.onwbp.com.google.common.collect.ObjectArrays.checkElementsNotNull(ObjectArrays.java:225)
> at
> com.onwbp.com.google.common.collect.ImmutableList.construct(ImmutableList.java:281)
> at
> com.onwbp.com.google.common.collect.ImmutableList.copyOf(ImmutableList.java:239)
> at
> com.onwbp.com.google.common.collect.ImmutableList.copyOf(ImmutableList.java:209)
> at com.onwbp.org.apache.calcite.tools.RuleSets.ofList(RuleSets.java:41)
> {noformat}
> {noformat}
> java.lang.NullPointerException
> at
> org.apache.calcite.plan.AbstractRelOptPlanner.addRule(AbstractRelOptPlanner.java:147)
> at
> org.apache.calcite.plan.volcano.VolcanoPlanner.addRule(VolcanoPlanner.java:416)
> at herddb.sql.CalcitePlanner.runPlanner(CalcitePlanner.java:576)
> at herddb.sql.CalcitePlanner.translate(CalcitePlanner.java:331)
> at herddb.core.TestUtils.scan(TestUtils.java:70)
> {noformat}
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