JIRA Welcome Plugin fails to load after Jira server upgrade

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Symptoms

The JIRA Welcome Plugin cannot be loaded.

The following appears in the atlassian-jira.log:

********************************************************************************************************************************************************************************************************
___ FAILED PLUGIN REPORT _____________________
1 plugin failed to load during JIRA startup.
	'com.atlassian.jira.welcome.jira-welcome-plugin' - 'JIRA Welcome Plugin'  failed to load.
		Error creating bean with name 'sampleDataImporter': Initialization of bean failed; nested exception is org.springframework.beans.TypeMismatchException: Failed to convert property value of type [java.util.LinkedHashSet] to required type [java.lang.Class[]] for property 'interfaces'; nested exception is java.lang.IllegalArgumentException: Cannot find class [com.atlassian.jira.plugins.importer.sample.SampleDataImporter]
			Failed to convert property value of type [java.util.LinkedHashSet] to required type [java.lang.Class[]] for property 'interfaces'; nested exception is java.lang.IllegalArgumentException: Cannot find class [com.atlassian.jira.plugins.importer.sample.SampleDataImporter]
				Cannot find class [com.atlassian.jira.plugins.importer.sample.SampleDataImporter]
					com.atlassian.jira.plugins.importer.sample.SampleDataImporter not found from bundle [com.atlassian.jira.welcome.jira-welcome-plugin]
						com.atlassian.jira.plugins.importer.sample.SampleDataImporter
		It was loaded from /proj/mgwjira/jira_1/jira_home/plugins/installed-plugins/plugin.8163992234788019615.jira-welcome-plugin-1.1.48.jar
********************************************************************************************************************************************************************************************************

Cause

The JIRA Welcome Plugin is a bundled system plugin since JIRA 6.3, and should not be installed into the installed-plugins folder. If there is an issue with the plugin JAR file, removing it will tell JIRA to revert back to the bundled JIRA Welcome Plugin.

Resolution

(warning) Only applies to JIRA 6.3 or newer

  • Stop JIRA.

  • Go to $JIRA_HOME/plugins/installed-plugins/ and remove the JIRA Welcome Plugin jar file.

    (info) The file may be named with random numbers such as plugin.8163992234788019615.jira-welcome-plugin-1.1.48.jar

  • Restart JIRA.

Last modified on Sep 25, 2019

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