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https://issues.apache.org/jira/browse/CALCITE-4136?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17163115#comment-17163115
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Stamatis Zampetakis commented on CALCITE-4136:
----------------------------------------------
I guess we could cut the cyclic dependency just by instantiating the rule(s)
twice (once where it is deprecated and once in his new home). That way we can
keep the deprecated annotation and also have a working rule.
> 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
> Attachments: DeprecatedRulesAreNull.png
>
>
> 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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