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POError deserializing ConcurrentHashMap: Possible JVM bug
primarykey
Id
13984424
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0
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ClosedDate
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14
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2012-12-21T04:49:20.043
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2012-12-21T05:09:41.333
LastEditDate
2012-12-21T05:09:41.333
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14316
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Score
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ViewCount
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text
Body
<p>We have a serializable class containing a ConcurrentHashMap field. Almost all the times the serialization/deserialization of this class works perfectly. However, we just received a file containing a serialized version of this class and when we try to deserialize it, we are getting an error msg like this:</p> <pre><code>Exception in thread "main" java.lang.NullPointerException at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:262) at java.util.concurrent.ConcurrentHashMap$Segment.put(ConcurrentHashMap.java:417) at java.util.concurrent.ConcurrentHashMap.put(ConcurrentHashMap.java:883) at java.util.concurrent.ConcurrentHashMap.readObject(ConcurrentHashMap.java:1278) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1946) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1870) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1946) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1870) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350) </code></pre> <p>Could this be a JVM bug? The error occurs entirely inside jvm classes.</p>
Tags
<java><serialization><jvm>
Title
Error deserializing ConcurrentHashMap: Possible JVM bug
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