background: integration tests that used the imagemanip service were failing
with fesl (the new, experimental security layer) enabled.
The odd thing was, even requests to:
http://localhost:8080/imagemanip/ImageManipulation?op=resize&newWidth=50&url=http://localhost:8080/tomcat.gif
would hang/timeout if the fedora webapp had started with fesl enabled was
running alongside in the same container.
In the ImageManipulation servlet at line 271, it was at JAI.create that things
would hang. See:
http://fedora-commons.svn.sourceforge.net/viewvc/fedora-commons/fedora/trunk/fcrepo-webapp/fcrepo-webapp-imagemanip/src/main/java/fedora/localservices/imagemanip/ImageManipulation.java?view=markup
On the fesl side of things, the problem appeared to be with created a new
com.sun.xacml.PDP instance. See:
http://fedora-commons.svn.sourceforge.net/viewvc/fedora-commons/fedora/trunk/fcrepo-security/fcrepo-security-pdp/src/main/java/melcoe/xacml/pdp/MelcoePDPImpl.java?view=markup
Commenting out the populatepolicies and instantiation of the PDP instance would
get imagemanip working again.
After spending entirely too much time trying to run this issue down, I tried
setting
System.setProperty("java.awt.headless", "true");
in the imagemanip servlet and suddenly imagemanip is working. I'd sort of
understand if this was happening all the time in the imagemanip servlet without
headless. But having it only happen when a different webapp is running
alongside using an unrelated package is just weird.
Anyone ever see something like this or have any insights?
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