Hello,
I have a little problem with JCS. In the loading of my application, I load
thousands of objects from a database. If I use just LRUMemory, all my
objects are loaded and can be read. But if I use LRU and IndexedDiskCache I
have this error message :
-----------------------------------------------------
IndexedDiskCache.java:593 - Region [adosCache] Exception, Problem reading
object from file
java.lang.NullPointerException
at com.test.app.dto.ListObject.hashCode(ListObject.java:130)
at java.util.HashMap.put(Unknown Source)
at java.util.HashSet.readObject(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
…
-----------------------------------------------------
IndexedDiskCache.java:551 - Region [adosCache] Failure getting from disk,
key = [GAN: groupId=[groupId=adosCache, adosCache], attrName=AZ.BVG.1278]
java.io.IOException: Region [adosCache] Problem reading object from disk.
null
at
org.apache.jcs.auxiliary.disk.indexed.IndexedDiskCache.readElement(IndexedDiskCache.java:594)
at
org.apache.jcs.auxiliary.disk.indexed.IndexedDiskCache.doGet(IndexedDiskCache.java:537)
…
-----------------------------------------------------
When I see in the log, I found that the object witch I tried to read is in
the cache. Here is a part of my log file:
-----------------------------------------------------
2007-09-17 13:13:40,437 DEBUG [Analyser_0] - LRUMap.java:192 - getting item
for key [AWS: groupId=[groupId=adosCache, adosCache], attrName=aa.MM.12149]
2007-09-17 13:13:40,437 DEBUG [Analyser_0] - LRUMap.java:212 - LRUMap miss
for [AWS: groupId=[groupId=adosCache, adosCache], attrName=aa.MM.12149]
2007-09-17 13:13:40,437 DEBUG [Analyser_0] - IndexedDiskCache.java:528 -
Region [adosCache] Trying to get from disk: [AWS:
groupId=[groupId=adosCache, adosCache], attrName=aa.MM.12149]
2007-09-17 13:13:40,593 DEBUG [Analyser_0] - LRUMap.java:192 - getting item
for key [AWS: groupId=[groupId=adosCache, adosCache], attrName=aa.MM.12149]
2007-09-17 13:13:40,593 DEBUG [Analyser_0] - LRUMap.java:202 - LRUMap hit
for [AWS: groupId=[groupId=adosCache, adosCache], attrName=aa.MM.12149]
2007-09-17 13:13:40,593 DEBUG [Analyser_0] - IndexedDiskCache.java:580 -
Region [adosCache] Found on disk, key: [AWS: groupId=[groupId=adosCache,
adosCache], attrName=aa.MM.12149]
2007-09-17 13:13:40,906 ERROR [Analyser_0] - IndexedDiskCache.java:551 -
Region [adosCache] Failure getting from disk, key = [AWS:
groupId=[groupId=adosCache, adosCache], attrName=aa.MM.12149]
-----------------------------------------------------
Please help if a have any idea for resolving this problem.
Thanks in advance.
Mohammed.
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