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https://issues.apache.org/jira/browse/JCS-156?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15337996#comment-15337996
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Sebb commented on JCS-156:
--------------------------
Good catch; my original patch did not actually work... oops!
Fixed here:
URL: http://svn.apache.org/viewvc?rev=1749070&view=rev
Log:
Need to cast before doing the calculation
Modified:
commons/proper/jcs/trunk/commons-jcs-core/src/main/java/org/apache/commons/jcs/auxiliary/disk/block/BlockDisk.java
> BlockDiskCache is limited to 2GB.
> ---------------------------------
>
> Key: JCS-156
> URL: https://issues.apache.org/jira/browse/JCS-156
> Project: Commons JCS
> Issue Type: Bug
> Components: Composite Cache
> Affects Versions: jcs-2.0-beta-1
> Reporter: Alexander Malyshev
> Assignee: Thomas Vandahl
> Attachments: BlockDisk-calculateByteOffsetPatch.patch, jcs.patch
>
>
> There is a bug in BlockDiskCache which makes it limited to 2GB in size. If I
> try to write more, I'm getting the following exception:
> Exception in thread "CacheEventQueue.QProcessor-sliderCache"
> java.lang.IllegalArgumentException: Negative position
> at sun.nio.ch.FileChannelImpl.write(FileChannelImpl.java:754)
> at
> org.apache.commons.jcs.auxiliary.disk.block.BlockDisk.write(BlockDisk.java:216)
> at
> org.apache.commons.jcs.auxiliary.disk.block.BlockDiskCache.processUpdate(BlockDiskCache.java:394)
> at
> org.apache.commons.jcs.auxiliary.AbstractAuxiliaryCacheEventLogging.updateWithEventLogging(AbstractAuxiliaryCacheEventLogging.java:65)
> at
> org.apache.commons.jcs.auxiliary.disk.AbstractDiskCache.doUpdate(AbstractDiskCache.java:804)
> at
> org.apache.commons.jcs.auxiliary.disk.AbstractDiskCache$MyCacheListener.handlePut(AbstractDiskCache.java:662)
> at
> org.apache.commons.jcs.engine.AbstractCacheEventQueue$PutEvent.doRun(AbstractCacheEventQueue.java:350)
> at
> org.apache.commons.jcs.engine.AbstractCacheEventQueue$AbstractCacheEvent.run(AbstractCacheEventQueue.java:269)
> at
> org.apache.commons.jcs.engine.CacheEventQueue$QProcessor.run(CacheEventQueue.java:304)
> The reason is that method calculateByteOffsetForBlock in BlockDisk class
> returns int instead of long.
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