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https://issues.apache.org/jira/browse/FLINK-1251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Robert Metzger reassigned FLINK-1251:
-------------------------------------
Assignee: Robert Metzger
> CollectionInputFormat is not able to handle Enums
> -------------------------------------------------
>
> Key: FLINK-1251
> URL: https://issues.apache.org/jira/browse/FLINK-1251
> Project: Flink
> Issue Type: Bug
> Reporter: Robert Metzger
> Assignee: Robert Metzger
>
> It seems that the CollectionInputFormat is not able to handle POJOs
> containing enums properly.
> {code}
> public enum Category {
> CAT_A, CAT_B
> }
> public static class PojoWithDateAndEnum {
> public String group;
> public Date date;
> public Category cat;
> }
> {code}
> leads to
> {code}
> java.lang.IllegalStateException: unread block data
> at
> java.io.ObjectInputStream$BlockDataInputStream.setBlockDataMode(ObjectInputStream.java:2424)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1383)
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)
> at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
> at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
> at
> org.apache.flink.util.InstantiationUtil.deserializeObject(InstantiationUtil.java:245)
> at
> org.apache.flink.util.InstantiationUtil.readObjectFromConfig(InstantiationUtil.java:231)
> at
> org.apache.flink.runtime.operators.util.TaskConfig.getStubWrapper(TaskConfig.java:281)
> at
> org.apache.flink.runtime.jobgraph.InputFormatVertex.initializeOnMaster(InputFormatVertex.java:46)
> at
> org.apache.flink.runtime.jobmanager.JobManager.submitJob(JobManager.java:380)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:483)
> at org.apache.flink.runtime.ipc.RPC$Server.call(RPC.java:420)
> at org.apache.flink.runtime.ipc.Server$Handler.run(Server.java:947)
> org.apache.flink.runtime.client.JobExecutionException:
> java.lang.IllegalStateException: unread block data
> at
> java.io.ObjectInputStream$BlockDataInputStream.setBlockDataMode(ObjectInputStream.java:2424)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1383)
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)
> at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
> at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
> at
> org.apache.flink.util.InstantiationUtil.deserializeObject(InstantiationUtil.java:245)
> at
> org.apache.flink.util.InstantiationUtil.readObjectFromConfig(InstantiationUtil.java:231)
> at
> org.apache.flink.runtime.operators.util.TaskConfig.getStubWrapper(TaskConfig.java:281)
> at
> org.apache.flink.runtime.jobgraph.InputFormatVertex.initializeOnMaster(InputFormatVertex.java:46)
> at
> org.apache.flink.runtime.jobmanager.JobManager.submitJob(JobManager.java:380)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:483)
> at org.apache.flink.runtime.ipc.RPC$Server.call(RPC.java:420)
> at org.apache.flink.runtime.ipc.Server$Handler.run(Server.java:947)
> at
> org.apache.flink.runtime.client.JobClient.submitJobAndWait(JobClient.java:256)
> at
> org.apache.flink.test.util.JavaProgramTestBase$TestEnvironment.execute(JavaProgramTestBase.java:216)
> at
> org.apache.flink.api.java.ExecutionEnvironment.execute(ExecutionEnvironment.java:578)
> at
> org.apache.flink.test.javaApiOperators.ReduceITCase$ReduceProgs.runProgram(ReduceITCase.java:364)
> at
> org.apache.flink.test.javaApiOperators.ReduceITCase.testProgram(ReduceITCase.java:66)
> at
> org.apache.flink.test.util.JavaProgramTestBase.testJob(JavaProgramTestBase.java:121)
> {code}
> I don't know if this is related:
> https://bugs.openjdk.java.net/browse/JDK-7132873
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