Encountered potentially-fixable OutOfMemoryError with large attachments

[jesse-gallagher]

I saw this in a DB with a UsingDocument that had a 300MB attachment(!). While it makes sense that this would hit memory limits, this specific path may be something that we could rectify by writing to a file buffer instead of a ByteArrayOutputStream. It's likely that it would fail on the next step when trying to actually process the XML, though.

[INFO] java.lang.OutOfMemoryError: Java heap space
[INFO] 	at java.util.Arrays.copyOf(Arrays.java:3236)
[INFO] 	at java.io.ByteArrayOutputStream.grow(ByteArrayOutputStream.java:118)
[INFO] 	at java.io.ByteArrayOutputStream.ensureCapacity(ByteArrayOutputStream.java:93)
[INFO] 	at java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:135)
[INFO] 	at org.openntf.nsfodp.commons.io.SwiperOutputStream.write(SwiperOutputStream.java:76)
[INFO] 	at java.io.OutputStream.write(OutputStream.java:116)
[INFO] 	at java.io.OutputStream.write(OutputStream.java:75)
[INFO] 	at com.darwino.domino.napi.proc.XML_WRITE_FUNCTION$1.callback(XML_WRITE_FUNCTION.java:35)
...