Confluence returns system error due to 'Invocation of method 'isShowSignUp' in class com.atlassian.confluence.user.actions.LoginAction threw exception java.lang.NullPointerException at /login.vm'

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Platform Notice: Server and Data Center Only - This article only applies to Atlassian products on the server and data center platforms.


Problem

After attempting to log in, Confluence returns System Error:

The following appears in the atlassian-confluence.log:

2014-12-24 21:26:20,866 ERROR [http-bio-10565-exec-9] [opensymphony.webwork.dispatcher.VelocityResult] doExecute Unable to render Velocity Template, '/login.vm'
 -- url: /confluence/login.action | userName: anonymous | action: login
org.apache.velocity.exception.MethodInvocationException: Invocation of method 'isShowSignUp' in  class com.atlassian.confluence.user.actions.LoginAction threw exception java.lang.NullPointerException at /login.vm[line 6, column 28]
    at org.apache.velocity.runtime.parser.node.ASTMethod.handleInvocationException(ASTMethod.java:337)
    at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:284)
    at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:262)
    at org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:507)
    at org.apache.velocity.runtime.parser.node.ASTExpression.value(ASTExpression.java:71)
    at org.apache.velocity.runtime.parser.node.ASTSetDirective.render(ASTSetDirective.java:142)
    at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:336)
    at org.apache.velocity.Template.merge(Template.java:328)
    at org.apache.velocity.Template.merge(Template.java:235)
    at com.opensymphony.webwork.dispatcher.VelocityResult.doExecute(VelocityResult.java:91)
    at com.atlassian.xwork.results.ProfiledVelocityResult.doExecute(ProfiledVelocityResult.java:21)
    at com.atlassian.confluence.setup.webwork.EncodingVelocityResult.doExecute(EncodingVelocityResult.java:48)
    at com.opensymphony.webwork.dispatcher.WebWorkResultSupport.execute(WebWorkResultSupport.java:116)
    at com.opensymphony.xwork.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:263)
    at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:187)
    at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
    at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
    at com.atlassian.confluence.core.ConfluenceWorkflowInterceptor.intercept(ConfluenceWorkflowInterceptor.java:65)
    at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
    at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
    at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
    at com.atlassian.xwork.interceptors.XsrfTokenInterceptor.intercept(XsrfTokenInterceptor.java:100)
    at com.atlassian.confluence.xwork.ConfluenceXsrfTokenInterceptor.intercept(ConfluenceXsrfTokenInterceptor.java:26)
    at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
    at com.atlassian.confluence.security.interceptors.CaptchaInterceptor.intercept(CaptchaInterceptor.java:50)
    ...
Caused by: java.lang.NullPointerException
    at com.atlassian.confluence.user.crowd.DefaultApplicationCache.toCacheValue(DefaultApplicationCache.java:69)
    at com.atlassian.confluence.user.crowd.DefaultApplicationCache.putApplication(DefaultApplicationCache.java:54)
    at com.atlassian.confluence.user.crowd.CachedCrowdApplicationDao.findByName(CachedCrowdApplicationDao.java:50)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    ... 295 more

Diagnosis

Determine the list_index for each directory in the Confluence database using the following SQL query:

SELECT * FROM cwd_app_dir_mapping ORDER BY 5;

(info)  This error can also occur when the cwd_application and/or cwd_app_dir_mapping tables are empty after a failed XML import. If this is the case, please follow Unable to Log In to Confluence

Cause

This problem occurs if the list index of your directories is not incremental (0,1,2..), or if the cwd_app_dir_mapping table does not include a directory with a list-index of 0.

Resolution

  1. Shutdown Confluence
  2. Update the cwd_app_dir_mapping table so that the list_index of the directories are in proper incremental order (i.e., 0, 1, 2, ...). You can use the following SQL queries:

    UPDATE cwd_app_dir_mapping
    SET LIST_INDEX=0
    WHERE ID=<first_id>;
    
    UPDATE cwd_app_dir_mapping
    SET LIST_INDEX=1
    WHERE ID=<second_id>;
    
    UPDATE cwd_app_dir_mapping
    SET LIST_INDEX=2
    WHERE ID=<third_id>;
  3. Restart Confluence

    Always back up your data before performing any modifications to the database. If possible, test any alter, insert, update, or delete SQL commands on a staging server first.

DescriptionAfter attempting to log in, Confluence returns System Error:
ProductConfluence
PlatformServer
Last modified on Apr 2, 2020

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