java.lang.NullPointerException: This exception has no message.

Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via JIRA by Etienne Morency-Bachand [X], 1 year ago
This exception has no message.
via JIRA by Vincent Ferretti, 1 year ago
This exception has no message.
via JIRA by Etienne Morency-Bachand [X], 1 year ago
This exception has no message.
via JIRA by Vincent Ferretti, 1 year ago
This exception has no message.
java.lang.NullPointerException:
at org.obiba.onyx.quartz.editor.variable.VariableUtils.convertToValueType(VariableUtils.java:103)
at org.obiba.onyx.quartz.editor.questionnaire.ValidationPanel.validateOpenAnswerValidators(ValidationPanel.java:131)
at org.obiba.onyx.quartz.editor.questionnaire.ValidationPanel.validate(ValidationPanel.java:94)
at org.obiba.onyx.quartz.editor.questionnaire.ValidationPanel.(ValidationPanel.java:74)
at org.obiba.onyx.quartz.editor.questionnaire.QuestionnaireListPanel$LinkFragment$2.onClick(QuestionnaireListPanel.java:275)
at org.apache.wicket.ajax.markup.html.AjaxLink$1.onEvent(AjaxLink.java:68)
at org.apache.wicket.ajax.AjaxEventBehavior.respond(AjaxEventBehavior.java:177)
at org.apache.wicket.ajax.AbstractDefaultAjaxBehavior.onRequest(AbstractDefaultAjaxBehavior.java:300)
at org.apache.wicket.request.target.component.listener.BehaviorRequestTarget.processEvents(BehaviorRequestTarget.java:119)
at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1250)
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1329)
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1436)
at org.apache.wicket.RequestCycle.request(RequestCycle.java:545)
at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:484)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Unknown Source)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Unknown Source)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(Unknown Source)
at org.apache.catalina.core.StandardWrapperValve.invoke(Unknown Source)
at org.apache.catalina.core.StandardContextValve.invoke(Unknown Source)
at org.apache.catalina.core.StandardHostValve.invoke(Unknown Source)
at org.apache.catalina.valves.ErrorReportValve.invoke(Unknown Source)
at org.apache.catalina.core.StandardEngineValve.invoke(Unknown Source)
at org.apache.coyote.http11.Http11Processor.process(Unknown Source)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Unknown Source)
at java.lang.Thread.run(Thread.java:619)

Users with the same issue

You are the first who have seen this exception. Write a tip to help other users and build your expert profile.

Know the solutions? Share your knowledge to help other developers to debug faster.