Configuration:
hudson 1.112 using the included container (java -jar hudson.war)
Suse Linux SLES9
JDK 1.5.0_11

To reproduce the issue:

1. Create a job and start configuring it
2. Enter SVN repository URL: https://hostname/foobar/trunk
3. Wait until it tries to test the URL
4. The following text is shown. It looks like that for some reason the exception
is printed together with the regular HTML response. Also the HTML tags are
printed too, they are not evaluated by the browser.

Unable to access https://hostname/foobar/trunk :
svn: authentication cancelled <a href='#' id=svnerrorlink
onclick='javascript:document.getElementById("svnerror").style.display="block";document.getElementById("svnerrorlink").style.display="none";return
false;'>(show details)</a><pre id=svnerror
style='display:none'>org.tmatesoft.svn.core.SVNCancelException: svn:
authentication cancelled
at org.tmatesoft.svn.core.internal.wc.SVNErrorManager.error(SVNErrorManager.java:45)
at
org.tmatesoft.svn.core.internal.io.dav.DAVUtil.findStartingProperties(DAVUtil.java:124)
at
org.tmatesoft.svn.core.internal.io.dav.DAVConnection.fetchRepositoryUUID(DAVConnection.java:88)
at
org.tmatesoft.svn.core.internal.io.dav.DAVRepository.testConnection(DAVRepository.java:84)
at hudson.scm.SubversionSCM$DescriptorImpl$2.check(SubversionSCM.java:940)
at hudson.util.FormFieldValidator.process(FormFieldValidator.java:40)
at
hudson.scm.SubversionSCM$DescriptorImpl.doSvnRemoteLocationCheck(SubversionSCM.java:914)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:95)
at org.kohsuke.stapler.Function.bindAndinvoke(Function.java:51)
at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:63)
at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:30)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:270)
at org.kohsuke.stapler.MetaClass$9.doDispatch(MetaClass.java:240)
at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:30)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:270)
at org.kohsuke.stapler.Stapler.invoke(Stapler.java:207)
at org.kohsuke.stapler.Stapler.service(Stapler.java:72)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:45)
at winstone.ServletConfiguration.execute(ServletConfiguration.java:249)
at winstone.RequestDispatcher.forward(RequestDispatcher.java:335)
at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:378)
at hudson.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:78)
at winstone.FilterConfiguration.execute(FilterConfiguration.java:195)
at winstone.RequestDispatcher.doFilter(RequestDispatcher.java:368)
at winstone.RequestDispatcher.forward(RequestDispatcher.java:333)
at winstone.RequestHandlerThread.processRequest(RequestHandlerThread.java:244)
at winstone.RequestHandlerThread.run(RequestHandlerThread.java:150)
at java.lang.Thread.run(Thread.java:595)
</pre> (Maybe you need to <a
href='/scm/SubversionSCM/enterCredential?https://hostname/foobar/trunk'>enter
credential</a>?)<br>