[RESTEASY-3670] Prevent off-heap OOME with chunked entity file writes #4736
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Introduces chunked writing for entity output streams to prevent large DirectByteBuffer allocations when writing large POST request entities to temporary files. The default buffer size of 8KB prevents the NIO layer from allocating large thread-local buffers that can exhaust off-heap memory with small MaxDirectMemorySize settings. https://issues.redhat.com/browse/RESTEASY-3670 Signed-off-by: James R. Perkins <jperkins@ibm.com>
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Introduces chunked writing for entity output streams to prevent large DirectByteBuffer allocations when writing large POST request entities to temporary files. The default buffer size of 8KB prevents the NIO layer from allocating large thread-local buffers that can exhaust off-heap memory with small MaxDirectMemorySize settings.
https://issues.redhat.com/browse/RESTEASY-3670
Upstream #4735