Spring SAML ServletException - spring-saml

Question

I've created a weblogic 12c version of the Spring Security SAML sample application. When I try to run it, I get the following error:
]] Root cause of ServletException.
weblogic.servlet.jsp.CompilationException: Failed to compile JSP
/WEB-INF/security/idpSelection.jsp idpSelection.jsp:1:1: The validator
class: "org.apache.taglibs.standard.tlv.JstlCoreTLV" has failed with
the following exception: "java.lang.ClassCastException:
weblogic.xml.jaxp.RegistrySAXParserFactory cannot be cast to
javax.xml.parsers.SAXParserFactory". <%# page ^-------
import="org.springframework.security.saml.metadata.MetadataManager"%>
----------------------------------------------------------------------------^
at
weblogic.servlet.jsp.JavelinxJSPStub.reportCompilationErrorIfNeccessary(JavelinxJSPStub.java:244)
at
weblogic.servlet.jsp.JavelinxJSPStub.compilePage0(JavelinxJSPStub.java:180)
at
weblogic.servlet.jsp.JavelinxJSPStub.access$000(JavelinxJSPStub.java:50)
at
weblogic.servlet.jsp.JavelinxJSPStub$1.run(JavelinxJSPStub.java:108)
at java.security.AccessController.doPrivileged(Native Method)
Truncated. see log file for complete stacktrace
<[ServletContext#11256322[app:_auto_generated_ear_ module:SAML2Sample
path:null spec-version:3.0]] Problem occurred while serving the error
page. javax.servlet.ServletException:
weblogic.servlet.jsp.CompilationException: Failed to compile JSP
/error.jsp error.jsp:1:1: The validator class:
"org.apache.taglibs.standard.tlv.JstlCoreTLV" has failed with the
following exception: "java.lang.ClassCastException:
weblogic.xml.jaxp.RegistrySAXParserFactory cannot be cast to
javax.xml.parsers.SAXParserFactory". <%# page
import="java.io.StringWriter" %>
^---------------------------------------^
at
weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:306)
at
weblogic.servlet.internal.ServletStubImpl.onAddToMapException(ServletStubImpl.java:483)
at
weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:372)
at
weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:243)
at
weblogic.servlet.internal.RequestDispatcherImpl.invokeServlet(RequestDispatcherImpl.java:587)
Truncated. see log file for complete stacktrace Caused By:
weblogic.servlet.jsp.CompilationException: Failed to compile JSP
/error.jsp error.jsp:1:1: The validator class:
"org.apache.taglibs.standard.tlv.JstlCoreTLV" has failed with the
following exception: "java.lang.ClassCastException:
weblogic.xml.jaxp.RegistrySAXParserFactory cannot be cast to
javax.xml.parsers.SAXParserFactory". <%# page
import="java.io.StringWriter" %>
^---------------------------------------^
at
weblogic.servlet.jsp.JavelinxJSPStub.reportCompilationErrorIfNeccessary(JavelinxJSPStub.java:244)
at
weblogic.servlet.jsp.JavelinxJSPStub.compilePage0(JavelinxJSPStub.java:180)
at
weblogic.servlet.jsp.JavelinxJSPStub.access$000(JavelinxJSPStub.java:50)
at
weblogic.servlet.jsp.JavelinxJSPStub$1.run(JavelinxJSPStub.java:108)
at java.security.AccessController.doPrivileged(Native Method)
Truncated. see log file for complete stacktrace
>
Any ideas on what's causing the CompilationException? Thanks!

Answer 1

For those of you who may run into this in the future, changing the scope of the dependency (javax.servlet/jstl) from compile to provided in the pom.xml fixed my problem.