I'm having this same issue: just trying to retrieve <url>/method=OPTIONS on my
WadlApplication derivative gives the following:
SEVERE: An exception occured writing the response entity
java.lang.NullPointerException
at
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:642)
at
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1273)
at
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1251)
at
org.restlet.ext.xml.TransformRepresentation.transform(TransformRepresentation.java:572)
at
org.restlet.ext.xml.TransformRepresentation.write(TransformRepresentation.java:589)
at
org.restlet.ext.xml.TransformRepresentation.write(TransformRepresentation.java:599)
at
org.restlet.representation.CharacterRepresentation.write(CharacterRepresentation.java:76)
at
org.restlet.engine.adapter.ServerCall.writeResponseBody(ServerCall.java:509)
at
org.restlet.engine.adapter.ServerCall.sendResponse(ServerCall.java:453)
at
org.restlet.ext.servlet.internal.ServletCall.sendResponse(ServletCall.java:459)
Requesting JSON works fine, of course.
Like Paul, I have xalan 2.7.1 (Maven dependency).
This is the GAE edition, if it matters.
Help!
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