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https://issues.apache.org/jira/browse/CAMEL-7055?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Franz Forsthofer updated CAMEL-7055:
------------------------------------

    Attachment: 0001-bug-CachedOutputStream-close.patch

> NullPointerException at 
> FileInputStreamCache.<init>(FileInputStreamCache.java:52) in connection with 
> DataFormat.marshal
> -----------------------------------------------------------------------------------------------------------------------
>
>                 Key: CAMEL-7055
>                 URL: https://issues.apache.org/jira/browse/CAMEL-7055
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-core
>    Affects Versions: 2.11.2, 2.12.2
>            Reporter: Franz Forsthofer
>            Priority: Critical
>             Fix For: 2.12.3
>
>         Attachments: 0001-bug-CachedOutputStream-close.patch
>
>
> Stack Trace:
> {code}
> Caused by: java.lang.NullPointerException
>       at 
> org.apache.camel.converter.stream.FileInputStreamCache.<init>(FileInputStreamCache.java:52)
>       at 
> org.apache.camel.converter.stream.CachedOutputStream.newStreamCache(CachedOutputStream.java:199)
>       at 
> org.apache.camel.processor.MarshalProcessor.process(MarshalProcessor.java:79)
> {code}
> Error occurs, if streamCache is true and the stream is put into the file 
> system because the spool threashold is reached. 
> The following is happening:
> The Marshall Processor handels over to the DataFromat.marshal method a 
> CachedOutputStream instance. In the marschal method data are written into the 
> output stream, when the spool threshold is reached the data are streamed into 
> the file system. Finally the output stream is closed and the 
> CachedOutputStream instance deletes the cached file during closing. The next 
> processor tries to read the FileInputStreamCache and gets the 
> NullPointerException.
> Currently this problem can occur in the following DataFormat classes (because 
> they close the stream, which is actually correct):
> GzipDataFormat
> CryptoDataFormat
> PGPDataFormat
> SerializationDataFormat
> XMLSecurityDataFormat
> ZipDataFormat
> My proposal is not to delete the cached file during closing the output 
> stream. The cached file shall only be closed on the onCompletion event of the 
> route. See attached patch.



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