https://community.appian.com/support/w/kb/600/kb-1362-slicing-a-list-of-lists-causes-nullpointerexceptionen-USTelligent Community 12https://community.appian.com/support/w/kb/600/kb-1362-slicing-a-list-of-lists-causes-nullpointerexceptionMon, 23 Jul 2018 14:29:42 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:5a394076-2192-4fcc-a7df-159005009601Jordan Horwathttps://community.appian.com/support/w/kb/600/kb-1362-slicing-a-list-of-lists-causes-nullpointerexception#commentsCurrent Revision posted to Appian Knowledge Base by Jordan Horwat on 7/23/2018 2:29:42 PM<br /> <h2>Symptoms</h2> <p>When attempting to slice a value from a list of lists, the following error occurs:&nbsp;</p> <pre class="code-java">Expression evaluation error : </pre> <p>Additionally, the following error is seen in the logs:</p> <pre class="code-java">Expression evaluation error : (APNX-1-4198-000) ... Caused by: java.lang.NullPointerException </pre> <h2>Cause</h2> <p>This issue has been reported to the Appian product team. The reference number for this issue is <strong>AN-51686</strong>.</p> <h2>Affected Versions</h2> <p>This article applies to all versions of Appian.</p> <p>Last Reviewed: May 2017</p><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: known issues, expression rules, application design, open issues</div> https://community.appian.com/support/w/kb/600/kb-1362-slicing-a-list-of-lists-causes-nullpointerexception/revision/2Fri, 26 May 2017 11:30:44 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:5a394076-2192-4fcc-a7df-159005009601Nick Vigilantehttps://community.appian.com/support/w/kb/600/kb-1362-slicing-a-list-of-lists-causes-nullpointerexception#commentsRevision 2 posted to Appian Knowledge Base by Nick Vigilante on 5/26/2017 11:30:44 AM<br /> <h2>Symptoms</h2> <p>When attempting to slice a value from a list of lists, the following error occurs:&nbsp;</p> <pre class="code-java">Expression evaluation error : </pre> <p>Additionally, the following error is seen in the logs:</p> <pre class="code-java">Expression evaluation error : (APNX-1-4198-000) ... Caused by: java.lang.NullPointerException </pre> <h2>Cause</h2> <p>This issue has been reported to the Appian product team. The reference number for this issue is <strong>AN-51686</strong>.</p> <h2>Affected Versions</h2> <p>This article applies to all versions of Appian.</p> <p>Last Reviewed: May 2017</p><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: known issues, expression rules, open issues</div> https://community.appian.com/support/w/kb/600/kb-1362-slicing-a-list-of-lists-causes-nullpointerexception/revision/1Thu, 25 May 2017 18:24:39 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:5a394076-2192-4fcc-a7df-159005009601Jenn Pridemorehttps://community.appian.com/support/w/kb/600/kb-1362-slicing-a-list-of-lists-causes-nullpointerexception#commentsRevision 1 posted to Appian Knowledge Base by Jenn Pridemore on 5/25/2017 6:24:39 PM<br /> <h2>Symptoms</h2> <p>When attempting to slice a value from a list of lists, the following error occurs:&nbsp;</p> <pre class="code-java">Expression evaluation error : </pre> <p>Additionally, the following error is seen in the logs:</p> <pre class="code-java">Expression evaluation error : (APNX-1-4198-000) ... Caused by: java.lang.NullPointerException </pre> <h2>Cause</h2> <p>This issue has been reported to the Appian product team. The reference number for this issue is <strong>AN-51686</strong>.</p> <h2>Affected Versions</h2> <p>This article applies to all versions of Appian.</p> <p>Last Reviewed: May 2017</p><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: known issues, expression rules, open issues</div>