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https://issues.apache.org/jira/browse/METAMODEL-241?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15283036#comment-15283036
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Tomasz Guzialek commented on METAMODEL-241:
-------------------------------------------
The ticket mentions the environment as Windows 7, but I experienced that also
on Mac OS X El Capitan 10.11.4 with Java(TM) SE Runtime Environment (build
1.8.0_92-b14).
Moreover, I started to experience that in Travis builds. Did not manage to
reproduce that on the master branch, but my feature branch is currently failing
with same error: https://travis-ci.org/tomaszguzialek/metamodel/jobs/130065495
> Deserializing legacy objects fails on some JREs
> -----------------------------------------------
>
> Key: METAMODEL-241
> URL: https://issues.apache.org/jira/browse/METAMODEL-241
> Project: Apache MetaModel
> Issue Type: Bug
> Affects Versions: 4.5.2
> Environment: Windows 7
> JDK 1.8.0_77
> Happens both via command line build and test runs in eclipse
> Reporter: Kasper Sørensen
>
> I just got myself a new laptop and installed a new development environment.
> For some reason there seems to be a change in the JRE that causes legacy
> object deserialization to fail with the following causes:
> The failing test is {code}
> java.io.InvalidClassException: cannot bind enum descriptor to a non-enum class
> at java.io.ObjectStreamClass.initNonProxy(Unknown Source)
> at java.io.ObjectInputStream.readNonProxyDesc(Unknown Source)
> at java.io.ObjectInputStream.readClassDesc(Unknown Source)
> at java.io.ObjectInputStream.readEnum(Unknown Source)
> at java.io.ObjectInputStream.readObject0(Unknown Source)
> at java.io.ObjectInputStream.defaultReadFields(Unknown Source)
> at java.io.ObjectInputStream.readSerialData(Unknown Source)
> at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
> at java.io.ObjectInputStream.readObject0(Unknown Source)
> at java.io.ObjectInputStream.readObject(Unknown Source)
> at java.util.ArrayList.readObject(Unknown Source)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> at java.lang.reflect.Method.invoke(Unknown Source)
> at java.io.ObjectStreamClass.invokeReadObject(Unknown Source)
> at java.io.ObjectInputStream.readSerialData(Unknown Source)
> at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
> at java.io.ObjectInputStream.readObject0(Unknown Source)
> at java.io.ObjectInputStream.defaultReadFields(Unknown Source)
> at java.io.ObjectInputStream.readSerialData(Unknown Source)
> at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
> at java.io.ObjectInputStream.readObject0(Unknown Source)
> at java.io.ObjectInputStream.defaultReadFields(Unknown Source)
> at java.io.ObjectInputStream.readSerialData(Unknown Source)
> at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
> at java.io.ObjectInputStream.readObject0(Unknown Source)
> at java.io.ObjectInputStream.readObject(Unknown Source)
> at
> org.apache.metamodel.util.LegacyDeserializationObjectInputStreamTest.testCreateSerializeAndDeserializeOldSchemaAndQuery(LegacyDeserializationObjectInputStreamTest.java:67)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> at java.lang.reflect.Method.invoke(Unknown Source)
> at junit.framework.TestCase.runTest(TestCase.java:176)
> at junit.framework.TestCase.runBare(TestCase.java:141)
> ...
> {code}
> and underlying I found that in
> LegacyDeserializationObjectInputStream.isEnumExpected(...) we run into this
> problem which causes the rest of the deserialization to go wrong:
> {code}
> java.lang.reflect.InvocationTargetException
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> at java.lang.reflect.Method.invoke(Unknown Source)
> at
> org.apache.metamodel.util.LegacyDeserializationObjectInputStream.isEnumExpected(LegacyDeserializationObjectInputStream.java:257)
> at
> org.apache.metamodel.util.LegacyDeserializationObjectInputStream.readClassDescriptor(LegacyDeserializationObjectInputStream.java:231)
> at java.io.ObjectInputStream.readNonProxyDesc(Unknown Source)
> at java.io.ObjectInputStream.readClassDesc(Unknown Source)
> at java.io.ObjectInputStream.readEnum(Unknown Source)
> at java.io.ObjectInputStream.readObject0(Unknown Source)
> at java.io.ObjectInputStream.defaultReadFields(Unknown Source)
> at java.io.ObjectInputStream.readSerialData(Unknown Source)
> at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
> at java.io.ObjectInputStream.readObject0(Unknown Source)
> at java.io.ObjectInputStream.readObject(Unknown Source)
> at java.util.ArrayList.readObject(Unknown Source)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> at java.lang.reflect.Method.invoke(Unknown Source)
> at java.io.ObjectStreamClass.invokeReadObject(Unknown Source)
> at java.io.ObjectInputStream.readSerialData(Unknown Source)
> at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
> at java.io.ObjectInputStream.readObject0(Unknown Source)
> at java.io.ObjectInputStream.defaultReadFields(Unknown Source)
> at java.io.ObjectInputStream.readSerialData(Unknown Source)
> at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
> at java.io.ObjectInputStream.readObject0(Unknown Source)
> at java.io.ObjectInputStream.defaultReadFields(Unknown Source)
> at java.io.ObjectInputStream.readSerialData(Unknown Source)
> at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
> at java.io.ObjectInputStream.readObject0(Unknown Source)
> at java.io.ObjectInputStream.readObject(Unknown Source)
> at
> org.apache.metamodel.util.LegacyDeserializationObjectInputStreamTest.testCreateSerializeAndDeserializeOldSchemaAndQuery(LegacyDeserializationObjectInputStreamTest.java:67)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> at java.lang.reflect.Method.invoke(Unknown Source)
> at junit.framework.TestCase.runTest(TestCase.java:176)
> at junit.framework.TestCase.runBare(TestCase.java:141)
> ...
> Caused by: java.lang.InternalError: Unexpected call when not initialized
> at java.io.ObjectStreamClass.requireInitialized(Unknown Source)
> at java.io.ObjectStreamClass.isEnum(Unknown Source)
> ... 53 more
> {code}
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