4:40 p.m.
Hi Bill,
I already had <module name="javax.api”/> in my module.xml
I did find a workaround that I do not like and I am hoping that you can help me do it
right
Ok so I first set jaxp debug to true,
and I was getting the following error
JAXP: using thread context class loader (ModuleClassLoader for Module
"deployment.keycloak-server.war:main" from Service Module Loader) for search
11:03:40,517 ERROR [stderr] (default task-2) JAXP: Looking up system property
'javax.xml.xpath.XPathFactory:http://java.sun.com/jaxp/xpath/dom'
<http://java.sun.com/jaxp/xpath/dom'>
11:03:40,517 ERROR [stderr] (default task-2) JAXP: The value is
'__redirected.__XPathFactory'
11:03:40,517 ERROR [stderr] (default task-2) JAXP:
createInstance(__redirected.__XPathFactory)
11:03:40,518 ERROR [stderr] (default task-2) JAXP: loaded __redirected.__XPathFactory from
jar:file:/Users/Carmen/software/keycloak-demo-1.5.0.Final/keycloak/jboss-modules.jar!/__redirected/__XPathFactory.class
11:03:40,518 ERROR [stderr] (default task-2) JAXP: could not instantiate
__redirected.__XPathFactory
11:03:40,519 ERROR [stderr] (default task-2) java.lang.ClassCastException:
__redirected.__XPathFactory cannot be cast to javax.xml.xpath.XPathFactory
11:03:40,519 ERROR [stderr] (default task-2) at
javax.xml.xpath.XPathFactoryFinder.createInstance(XPathFactoryFinder.java:306)
11:03:40,519 ERROR [stderr] (default task-2) at
javax.xml.xpath.XPathFactoryFinder._newFactory(XPathFactoryFinder.java:184)
11:03:40,519 ERROR [stderr] (default task-2) at
javax.xml.xpath.XPathFactoryFinder.newFactory(XPathFactoryFinder.java:157)
So it looked like there was a class loader issue and the ClassCast was not working.
I did not know how to fix that, so I went ahead and I changed the property
javax.xml.xpath.XPathFactory:http://java.sun.com/jaxp/xpath/dom
<http://java.sun.com/jaxp/xpath/dom> back to the default, to override looking for
__redirected.__XPathFactory
The default implementation is a com.sun….. class that lives in rt.jar and when I tried
that I was getting a ClassNotFound, so I went ahead, added Xalan to my module and changed
the property to use the Xalan class: org.apache.path.jaxp.XPathFactoryImpl
That worked.
I had that same issue with another class that was also overriden with a __redirected class
(DocumentBuilderFactory), and once I set the default value to the default implementation,
the implementation cannot be loaded because it is in rt.jar. I went around that by adding
crimsom to my module.
So it looks like even though there is a dependency defined of java.api, those jars (at
least for xml) do not contain implementations, just the interfaces, and the actual
providers are in rt.jar and I get an error trying to load them.
So I really do not like what I have done. There’s got to be a way to be able to use the
implementations in rt.jar, right?
Thanks
Maria