Whole response is cached in memory
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Key: WICKET-4113
URL: https://issues.apache.org/jira/browse/WICKET-4113
Project: Wicket
Issue Type: Bug
Components: wicket
Affects Versions: 1.4.18
Reporter: Adam Pierzchała
Priority: Critical
In class {{org.apache.wicket.protocol.http.portlet.WicketResponseState}} there
is used {{CharArrayWriterBuffer}} and {{ByteArrayOutputStream}} to cache in
memory whole response.
This creates issues with Java heap space when downloading big files:
{noformat}
Caused by: java.lang.OutOfMemoryError: Java heap space
at java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:70)
at
org.apache.wicket.protocol.http.portlet.WicketResponseState$1.write(WicketResponseState.java:439)
at java.io.OutputStream.write(OutputStream.java:99)
{noformat}
I think there should be used stream implementation that caches big data amounts
on disk e.g. {{org.apache.cxf.io.CachedOutputStream}}
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