[Unity-idm-discuss] Nullpointer when SP tries to access IDP

[Willem E. <wi...@cl...>]

Dear Krzysztof,

we have received the following stacktrace when trying to authenticate
via one of our SPs:

HTTP Error: 500
Error reason:

    Server Error

Caused by:

java.lang.NullPointerException
    at java.net.URI$Parser.parse(URI.java:3042)
    at java.net.URI.<init>(URI.java:588)
    at eu.unicore.samly2.SAMLUtils.normalizeUri(SAMLUtils.java:228)
    at
eu.unicore.samly2.trust.EnumeratedTrustChecker.checkTrust(EnumeratedTrustChecker.java:103)
    at
eu.unicore.samly2.validators.AbstractRequestValidator.validate(AbstractRequestValidator.java:83)
    at
pl.edu.icm.unity.saml.validator.WebAuthRequestValidator.validate(WebAuthRequestValidator.java:33)
    at
pl.edu.icm.unity.saml.idp.web.filter.SamlParseServlet.validate(SamlParseServlet.java:237)
    at
pl.edu.icm.unity.saml.idp.web.filter.SamlParseServlet.processSamlRequestInterruptible(SamlParseServlet.java:164)
    at
pl.edu.icm.unity.saml.idp.web.filter.SamlParseServlet.processSamlRequest(SamlParseServlet.java:100)
    at
pl.edu.icm.unity.saml.idp.web.filter.SamlParseServlet.doGet(SamlParseServlet.java:80)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
    at
org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:845)
    at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1689)
    at
pl.edu.icm.unity.webui.authn.InvocationContextSetupFilter.doFilter(InvocationContextSetupFilter.java:73)
    at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1676)
    at
pl.edu.icm.unity.webui.authn.AuthenticationFilter.gotoNotProtectedResource(AuthenticationFilter.java:190)
    at
pl.edu.icm.unity.webui.authn.AuthenticationFilter.doFilter(AuthenticationFilter.java:78)
    at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1676)
    at
pl.edu.icm.unity.server.utils.HiddenResourcesFilter.doFilter(HiddenResourcesFilter.java:49)
    at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1676)
    at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:581)
    at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:224)
    at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1174)
    at
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:511)
    at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
    at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1106)
    at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
    at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213)
    at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
    at
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)
    at
org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:459)
    at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
    at org.eclipse.jetty.server.Server.handle(Server.java:524)
    at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:319)
    at
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:253)
    at
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273)
    at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)
    at
org.eclipse.jetty.io.ssl.SslConnection.onFillable(SslConnection.java:186)
    at
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273)
    at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)
    at
org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
    at
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303)
    at
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148)
    at
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136)
    at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671)
    at
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589)
    at java.lang.Thread.run(Thread.java:745)


No further information is available in the logs. The SP is using the
LASSO (http://lasso.entrouvert.org/) library.

Any ideas what can be the cause of this issue and how we can improve the
error message?

Best,

Willem


-- 
Willem Elbers
CLARIN ERIC
www.clarin.eu | skype: wjm.elbers