JBoss fails to deploy Appian with "NoSuchMethodError" after deploying a Hotfix

Symptoms

• Jboss fails with an error of the following type after deploying a Hotfix:

ERROR com.appiancorp.ix.diagnostics.Diagnostics - content SYSTEM_SYSRULES_util_showDialogOrPromptDialog 123471 The content [SYSTEM_SYSRULES_util_showDialogOrPromptDialog]/[123471] could not be transported. Cause: java.lang.NoSuchMethodError
.
.
Caused by: java.lang.NoSuchMethodError: com.appiancorp.core.expr.Lex.getTokens()Lcom/appiancorp/core/expr/TokenList

• JBoss starts up as expected when the Hotfix application is reverted.
• On further troubleshooting, deleteFiles.bat|sh shipped with the Hotfix is unable to delete jar files present in <APPIAN_HOME> directory.

Cause

deletFiles script is not present under AE_HOME.

dele

Action

Move deleteFiles script under AE_HOME and then execute the script.

Affected Versions

This article applies to all versions of Appian.