Internal Server Error in Application links after ugrading crowd to 4.30 what can we do to fix this?

[Karina Green]

HTTP Status 500 – Internal Server Error

Type Exception Report

Message org.apache.velocity.exception.MethodInvocationException: Invocation of method 'getOrphanedTrustCertificates' in class com.atlassian.applinks.ui.velocity.ListApplicationLinksContext threw exception java.lang.NullPointerException at com/atlassian/applinks/ui/admin/common_header.vm[line 7, column 20]

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

com.atlassian.templaterenderer.RenderingException: org.apache.velocity.exception.MethodInvocationException: Invocation of method 'getOrphanedTrustCertificates' in  class com.atlassian.applinks.ui.velocity.ListApplicationLinksContext threw exception java.lang.NullPointerException at com/atlassian/applinks/ui/admin/common_header.vm[line 7, column 20]
	com.atlassian.templaterenderer.velocity.one.six.internal.VelocityTemplateRendererImpl.render(VelocityTemplateRendererImpl.java:114)
	sun.reflect.GeneratedMethodAccessor838.invoke(Unknown Source)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

Root Cause

org.apache.velocity.exception.MethodInvocationException: Invocation of method 'getOrphanedTrustCertificates' in  class com.atlassian.applinks.ui.velocity.ListApplicationLinksContext threw exception java.lang.NullPointerException at com/atlassian/applinks/ui/admin/common_header.vm[line 7, column 20]
	org.apache.velocity.runtime.parser.node.ASTIdentifier.execute(ASTIdentifier.java:228)

Any help with this would be appreciated.

[Fabio Racobaldo _Catworkx_]

Hi @Karina Green ,

please provide more information about what tool you are trying to link with crowd. BTW, 

usually this issue is caused by corrupt application links in the database and the fix is to clear AppLinks/OAuth properties from the Crowd DB and then recreate the links

Hope this helps,

Fabio