Hello everyone
I am currently trying to get some better test-coverage for the websocket
feature in Pax-Web using the Jetty websocket-client API.
Unfortunately Jetty makes use of the ServiceLoader which fails even though
the class specified can be loaded due to different classloaders
(Class.isAssignableFrom yields false when the classes have different
classloaders even though the hierarchy matches).
So I came up with a naive idea to use Aries Spi-Fly which is supposed to
handle exactly this situation and enhance Jettys websocket-client bundle
with an additional Require-Capability header.
wrappedBundle(
mavenBundle().groupId("org.eclipse.jetty.websocket")
.artifactId("websocket-client")
.version(asInProject()))
.overwriteManifest(WrappedUrlProvisionOption.OverwriteMode.MERGE)
.instructions(
"Require-Capability: osgi.extender;
filter:=\"(osgi.extender=osgi.serviceloader.registrar)\"",
"Provide-Capability: osgi.serviceloader;
osgi.serviceloader=javax.websocket.ContainerProvider"),
This fails during Pax-Exam initialization due to
java.lang.IllegalStateException: Stream handler unavailable due to: null
and the reason is the url create by Pax-Url-Wrap which looks like this
wrap:mvn:org.eclipse.jetty.websocket/websocket-client/9.3.11.v20160721
$overwrite=MERGE&Require-Capability: osgi.extender; filter:=
"(osgi.extender=osgi.serviceloader.registrar)"&Provide-Capability: osgi.
serviceloader; osgi.serviceloader=javax.websocket.ContainerProvider
According to the documentation[1] this seems correct, so I thought I might
be missing some Pax-Url-xyz bundles but after trying several I ran out of
ideas
Am I missing something or is it just not possible what I am trying to do
here (adding a header-entry to an existing bundle)?
regards
Marc
[1] https://ops4j1.jira.com/wiki/display/paxurl/Wrap+Protocol
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