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https://issues.apache.org/jira/browse/OPENJPA-1038?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tim McConnell resolved OPENJPA-1038.
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Resolution: Fixed
Fix Version/s: 2.0.0
Issue is now resolved as the Enhancer (as of r765846) is able to detect
indirect circular dependencies without getting stack overflow exceptions and it
also outputs a more useful Exception message as below:
[jpa.fvt/jpafvt.setup/echo] do.nothing:
[jpa.fvt/jpafvt.setup/echo] [echo] Calling wsenhancer script.
[jpa.fvt/jpafvt.setup/echo] [exec] 93 EmbeddableNested_JSE INFO [main]
openjpa.Tool - No targets were given. Running on all classes in your
persistent classes list, or all metadata files in classpath directories if you
have not listed your persistent classes. Use -help to display tool usage
information.
[jpa.fvt/jpafvt.setup/echo] [exec] 359 EmbeddableNested_JSE INFO
[main] openjpa.Enhance - Enhancing type "class
suite.r80.base.embeddable.nested.entities.XMLEmbeddable02b".
[jpa.fvt/jpafvt.setup/echo] [exec] 437 EmbeddableNested_JSE INFO
[main] openjpa.Enhance - Enhancing type "class
suite.r80.base.embeddable.nested.entities.XMLEntity02".
[jpa.fvt/jpafvt.setup/echo] [exec] Exception in thread "main"
<openjpa-2.0.0-SNAPSHOT-r422266:737816 fatal user error>
org.apache.openjpa.util.MetaDataException: Errors encountered while resolving
metadata. See nested exceptions for details.
[jpa.fvt/jpafvt.setup/echo] [exec] at
org.apache.openjpa.meta.MetaDataRepository.resolve(MetaDataRepository.java:563)
[jpa.fvt/jpafvt.setup/echo] [exec] at
org.apache.openjpa.meta.MetaDataRepository.getMetaData(MetaDataRepository.java:308)
[jpa.fvt/jpafvt.setup/echo] [exec] at
org.apache.openjpa.enhance.PCEnhancer.<init>(PCEnhancer.java:251)
[jpa.fvt/jpafvt.setup/echo] [exec] at
org.apache.openjpa.enhance.PCEnhancer.run(PCEnhancer.java:4573)
[jpa.fvt/jpafvt.setup/echo] [exec] at
org.apache.openjpa.enhance.PCEnhancer.run(PCEnhancer.java:4520)
[jpa.fvt/jpafvt.setup/echo] [exec] at
org.apache.openjpa.enhance.PCEnhancer$1.run(PCEnhancer.java:4490)
[jpa.fvt/jpafvt.setup/echo] [exec] at
org.apache.openjpa.lib.conf.Configurations.launchRunnable(Configurations.java:726)
[jpa.fvt/jpafvt.setup/echo] [exec] at
org.apache.openjpa.lib.conf.Configurations.runAgainstAllAnchors(Configurations.java:716)
[jpa.fvt/jpafvt.setup/echo] [exec] at
org.apache.openjpa.enhance.PCEnhancer.run(PCEnhancer.java:4485)
[jpa.fvt/jpafvt.setup/echo] [exec] at
org.apache.openjpa.enhance.PCEnhancer.main(PCEnhancer.java:4476)
[jpa.fvt/jpafvt.setup/echo] [exec] Caused by:
<openjpa-2.0.0-SNAPSHOT-r422266:737816 fatal user error>
org.apache.openjpa.util.MetaDataException: Field
"suite.r80.base.embeddable.nested.entities.Embeddable05e.embeddable05f.suite.r80.base.embeddable.nested.entities.Embeddable05f.embeddable05a.suite.r80.base.embeddable.nested.entities.Embeddable05a.embeddable05b.suite.r80.base.embeddable.nested.entities.Embeddable05b.embeddable05c.suite.r80.base.embeddable.nested.entities.Embeddable05c.embeddable05d.suite.r80.base.embeddable.nested.entities.Embeddable05d.embeddable05e<class
suite.r80.base.embeddable.nested.entities.Embeddable05e>" attempts to
recursively embed its declaring type.
> Enhancer java.lang.StackOverflowError exception when circular dependencies
> are encountered within embeddables
> -------------------------------------------------------------------------------------------------------------
>
> Key: OPENJPA-1038
> URL: https://issues.apache.org/jira/browse/OPENJPA-1038
> Project: OpenJPA
> Issue Type: Improvement
> Affects Versions: 2.0.0
> Reporter: Tim McConnell
> Assignee: Fay Wang
> Fix For: 2.0.0
>
>
> Circular dependencies among embeddable are not allowed. When they are
> encountered by the Enhancer it gets in an infinite loop causing a stack
> overflow exception as shown below. It seems there should be a more graceful
> detection of this scenario and a more useful explanation and/or description
> of the error. The failure is the same for both annotated and XML versions of
> the entities/embeddables.
> [jpa.fvt/jpafvt.setup/echo] [exec] 1016 EmbeddableNested_JSE TRACE
> [main] openjpa.MetaData - Resolving field
> "suite.r80.base.embeddable.nested.entities.xmlembeddable...@969030082.xmlembeddable03a".
> [jpa.fvt/jpafvt.setup/echo] [exec] 1016 EmbeddableNested_JSE TRACE
> [main] openjpa.MetaData - Generating default metadata for type
> "suite.r80.base.embeddable.nested.entities.XMLEmbeddable03a".
> [jpa.fvt/jpafvt.setup/echo] [exec] 1016 EmbeddableNested_JSE TRACE
> [main] openjpa.MetaData - Using reflection for metadata generation.
> [jpa.fvt/jpafvt.setup/echo] [exec] 1016 EmbeddableNested_JSE TRACE
> [main] openjpa.MetaData - Resolving embedded metadata for
> "suite.r80.base.embeddable.nested.entities.xmlembeddable...@961886549".
> [jpa.fvt/jpafvt.setup/echo] [exec] Exception in thread "main"
> java.lang.StackOverflowError
> [jpa.fvt/jpafvt.setup/echo] [exec] at
> sun.nio.cs.SingleByteEncoder.encodeArrayLoop(SingleByteEncoder.java:76)
> [jpa.fvt/jpafvt.setup/echo] [exec] at
> sun.nio.cs.SingleByteEncoder.encodeLoop(SingleByteEncoder.java:152)
> [jpa.fvt/jpafvt.setup/echo] [exec] at
> java.nio.charset.CharsetEncoder.encode(CharsetEncoder.java:556)
> [jpa.fvt/jpafvt.setup/echo] [exec] at
> sun.nio.cs.StreamEncoder$CharsetSE.implWrite(StreamEncoder.java:405)
> [jpa.fvt/jpafvt.setup/echo] [exec] at
> sun.nio.cs.StreamEncoder.write(StreamEncoder.java:159)
> [jpa.fvt/jpafvt.setup/echo] [exec] at
> java.io.OutputStreamWriter.write(OutputStreamWriter.java:229)
> [jpa.fvt/jpafvt.setup/echo] [exec] at
> java.io.BufferedWriter.flushBuffer(BufferedWriter.java:122)
> [jpa.fvt/jpafvt.setup/echo] [exec] at
> java.io.PrintStream.write(PrintStream.java:489)
> [jpa.fvt/jpafvt.setup/echo] [exec] at
> java.io.PrintStream.print(PrintStream.java:632)
> [jpa.fvt/jpafvt.setup/echo] [exec] at
> com.ibm.jvm.io.ConsolePrintStream.print(ConsolePrintStream.java:259)
> [jpa.fvt/jpafvt.setup/echo] [exec] at
> org.apache.openjpa.lib.log.LogFactoryImpl$LogImpl.log(LogFactoryImpl.java:306)
> [jpa.fvt/jpafvt.setup/echo] [exec] at
> org.apache.openjpa.lib.log.AbstractLog.trace(AbstractLog.java:72)
> [jpa.fvt/jpafvt.setup/echo] [exec] at
> org.apache.openjpa.lib.log.AbstractLog.trace(AbstractLog.java:67)
> [jpa.fvt/jpafvt.setup/echo] [exec] at
> org.apache.openjpa.meta.ClassMetaData.resolveMeta(ClassMetaData.java:1649)
> [jpa.fvt/jpafvt.setup/echo] [exec] at
> org.apache.openjpa.meta.ClassMetaData.resolve(ClassMetaData.java:1628)
> [jpa.fvt/jpafvt.setup/echo] [exec] at
> org.apache.openjpa.meta.ValueMetaDataImpl.resolve(ValueMetaDataImpl.java:417)
> [jpa.fvt/jpafvt.setup/echo] [exec] at
> org.apache.openjpa.meta.FieldMetaData.resolve(FieldMetaData.java:1702)
> [jpa.fvt/jpafvt.setup/echo] [exec] at
> org.apache.openjpa.meta.ClassMetaData.resolveMeta(ClassMetaData.java:1693)
> [jpa.fvt/jpafvt.setup/echo] [exec] at
> org.apache.openjpa.meta.ClassMetaData.resolve(ClassMetaData.java:1628)
> [jpa.fvt/jpafvt.setup/echo] [exec] at
> org.apache.openjpa.meta.ValueMetaDataImpl.resolve(ValueMetaDataImpl.java:417)
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