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https://issues.apache.org/jira/browse/CALCITE-5227?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17610381#comment-17610381
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Daniel Glöckner edited comment on CALCITE-5227 at 9/28/22 7:02 AM:
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[~julianhyde] I just fed the generated Java source code which results from my
{{WideTableTest}} into javac and tried to use the generated method. It also
crashes newer JVMs so I guess the test is a bit too extreme. I will see how the
unit test in our business code behaves when I upgrade to Calcite with Janino >=
3.1.8.
I'll also check if there's a bug reported in OpenJDK that captures this issue
(javac accepting the source file vs. JVM exploding at runtime).
was (Author: JIRAUSER288949):
[~julianhyde] I just fed the generated Java source code which results from my
{{WideTableTest}} into javac and tried to use the generated method. It also
crashes newer JVMs so I guess the test is a bit too extreme. I will see how the
unit test in our business code behaves when I upgrade to Calcite with Janino >=
3.1.8. I'll also check if there's a bug in OpenJDK that captures this issue
(javac accepting the source file vs. JVM exploding at runtime).
> Janino upgrade breaks SELECTs with many projects causing JVM crashes
> --------------------------------------------------------------------
>
> Key: CALCITE-5227
> URL: https://issues.apache.org/jira/browse/CALCITE-5227
> Project: Calcite
> Issue Type: Bug
> Affects Versions: 1.30.0
> Reporter: Daniel Glöckner
> Priority: Critical
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> In our case we have SELECTs with > 1000 project fields. You might say this is
> a bit crazy but this is how our data model looks like ;)
> We recently upgraded to Calcite 1.30 and noticed JVM crashes for such
> SELECTs.
> After thorough analysis we found that the byte code produced by newer Janino
> versions is 350 times larger compared to the byte code produced by javac.
> I created a unit test to reproduce the issue in Calcite code base:
> https://github.com/apache/calcite/commit/f4d4815dff5537c56b34b36794c71d7a9829eec6
> The Janino issue is tracked here:
> https://github.com/janino-compiler/janino/issues/174
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