JIRA custom field searcher plugin error

[Ahmed_Bilal]

We have a plugin for a custom field and it's searcher.
It was working fine with JIRA7. We have migrated this to JIRA8.
atlas-package creating jar successfully, but when we uploading it is throwing below error.
Caused by: java.lang.ClassNotFoundException: com.atlassian.jira.jql.values.ClauseValuesGenerator

Details logs are attached.

Below code snippet is causing this error.
this.customFieldSearcherClauseHandler = new SimpleCustomFieldValueGeneratingClauseHandler(
new TreeFreeTextFieldValidator(field.getId(), jqlOperandResolver),
new TreeFreeTextClauseQueryFactory(jqlOperandResolver, field.getId()),
new TreeCustomFieldOptionsClauseValuesGenerator(field),
OperatorClasses.EQUALITY_OPERATORS_WITH_EMPTY,
JiraDataTypes.TEXT
);

2020-01-31 21:44:33,696+0500 ThreadPoolAsyncTaskExecutor::Thread 25 ERROR admin@predict 1304x1584x1 45h0lz 0:0:0:0:0:0:0:1 /rest/plugins/1.0/ [c.a.p.osgi.factory.OsgiPlugin] Unable to start the plugin container for plugin 'com.predict360.plugin.customfield.multi-select-custom-field'
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'MultiSelectSearcher': Lookup method resolution failed; nested exception is java.lang.IllegalStateException: Failed to introspect Class [com.predict360.plugin.customfield.searcher.MultiSelectSearcher] from ClassLoader [com.predict360.plugin.customfield.multi-select-custom-field [257]]
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.determineCandidateConstructors(AutowiredAnnotationBeanPostProcessor.java:259)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineConstructorsFromBeanPostProcessors(AbstractAutowireCapableBeanFactory.java:1194)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1120)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:535)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495)
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:759)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867)
	at org.eclipse.gemini.blueprint.context.support.AbstractDelegatedExecutionApplicationContext.access$1600(AbstractDelegatedExecutionApplicationContext.java:57)
	at org.eclipse.gemini.blueprint.context.support.AbstractDelegatedExecutionApplicationContext$4.run(AbstractDelegatedExecutionApplicationContext.java:322)
	at org.eclipse.gemini.blueprint.util.internal.PrivilegedUtils.executeWithCustomTCCL(PrivilegedUtils.java:85)
	at org.eclipse.gemini.blueprint.context.support.AbstractDelegatedExecutionApplicationContext.completeRefresh(AbstractDelegatedExecutionApplicationContext.java:287)
	at org.eclipse.gemini.blueprint.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor$CompleteRefreshTask.run(DependencyWaiterApplicationContextExecutor.java:137)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.IllegalStateException: Failed to introspect Class [com.predict360.plugin.customfield.searcher.MultiSelectSearcher] from ClassLoader [com.predict360.plugin.customfield.multi-select-custom-field [257]]
	at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:659)
	at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:556)
	at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:541)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.determineCandidateConstructors(AutowiredAnnotationBeanPostProcessor.java:242)
	... 18 more
	at java.lang.Class.getDeclaredMethods0(Native Method)
	at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
	at java.lang.Class.getDeclaredMethods(Unknown Source)
	at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:641)
	... 21 more
Caused by: java.lang.ClassNotFoundException: com.atlassian.jira.jql.values.ClauseValuesGenerator not found by com.predict360.plugin.customfield.multi-select-custom-field [257]
	at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1639)
	at org.apache.felix.framework.BundleWiringImpl.access$200(BundleWiringImpl.java:80)
	at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:2053)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	... 25 more
2020-01-31 21:44:34,209+0500 ThreadPoolAsyncTaskExecutor::Thread 25 ERROR admin@predict 1304x1584x1 45h0lz 0:0:0:0:0:0:0:1 /rest/plugins/1.0/ [o.e.g.b.e.i.util.concurrent.RunnableTimedExecution] Closing runnable for context NonValidatingOsgiBundleXmlApplicationContext(bundle=com.predict360.plugin.customfield.multi-select-custom-field, config=osgibundle:/META-INF/spring/*.xml) did not finish in 500ms; consider taking a snapshot and then shutdown the VM in case the thread still hangs
2020-01-31 21:44:34,344+0500 ThreadPoolAsyncTaskExecutor::Thread 25 ERROR admin@predict 1304x1584x1 45h0lz 0:0:0:0:0:0:0:1 /rest/plugins/1.0/ [o.e.g.b.e.internal.support.ExtenderConfiguration] Application context refresh failed (NonValidatingOsgiBundleXmlApplicationContext(bundle=com.predict360.plugin.customfield.multi-select-custom-field, config=osgibundle:/META-INF/spring/*.xml))
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'MultiSelectSearcher': Lookup method resolution failed; nested exception is java.lang.IllegalStateException: Failed to introspect Class [com.predict360.plugin.customfield.searcher.MultiSelectSearcher] from ClassLoader [com.predict360.plugin.customfield.multi-select-custom-field [257]]
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.determineCandidateConstructors(AutowiredAnnotationBeanPostProcessor.java:259)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineConstructorsFromBeanPostProcessors(AbstractAutowireCapableBeanFactory.java:1194)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1120)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:535)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495)
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:759)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867)
	at org.eclipse.gemini.blueprint.context.support.AbstractDelegatedExecutionApplicationContext.access$1600(AbstractDelegatedExecutionApplicationContext.java:57)
	at org.eclipse.gemini.blueprint.context.support.AbstractDelegatedExecutionApplicationContext$4.run(AbstractDelegatedExecutionApplicationContext.java:322)
	at org.eclipse.gemini.blueprint.util.internal.PrivilegedUtils.executeWithCustomTCCL(PrivilegedUtils.java:85)
	at org.eclipse.gemini.blueprint.context.support.AbstractDelegatedExecutionApplicationContext.completeRefresh(AbstractDelegatedExecutionApplicationContext.java:287)
	at org.eclipse.gemini.blueprint.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor$CompleteRefreshTask.run(DependencyWaiterApplicationContextExecutor.java:137)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.IllegalStateException: Failed to introspect Class [com.predict360.plugin.customfield.searcher.MultiSelectSearcher] from ClassLoader [com.predict360.plugin.customfield.multi-select-custom-field [257]]
	at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:659)
	at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:556)
	at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:541)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.determineCandidateConstructors(AutowiredAnnotationBeanPostProcessor.java:242)
	... 18 more
	at java.lang.Class.getDeclaredMethods0(Native Method)
	at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
	at java.lang.Class.getDeclaredMethods(Unknown Source)
	at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:641)
	... 21 more
Caused by: java.lang.ClassNotFoundException: com.atlassian.jira.jql.values.ClauseValuesGenerator not found by com.predict360.plugin.customfield.multi-select-custom-field [257]
	at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1639)
	at org.apache.felix.framework.BundleWiringImpl.access$200(BundleWiringImpl.java:80)
	at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:2053)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	... 25 more
2020-01-31 21:44:34,345+0500 ThreadPoolAsyncTaskExecutor::Thread 25 ERROR admin@predict 1304x1584x1 45h0lz 0:0:0:0:0:0:0:1 /rest/plugins/1.0/ [o.e.g.b.e.i.dependencies.startup.DependencyWaiterApplicationContextExecutor] Unable to create application context for [com.predict360.plugin.customfield.multi-select-custom-field], unsatisfied dependencies: none
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'MultiSelectSearcher': Lookup method resolution failed; nested exception is java.lang.IllegalStateException: Failed to introspect Class [com.predict360.plugin.customfield.searcher.MultiSelectSearcher] from ClassLoader [com.predict360.plugin.customfield.multi-select-custom-field [257]]
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.determineCandidateConstructors(AutowiredAnnotationBeanPostProcessor.java:259)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineConstructorsFromBeanPostProcessors(AbstractAutowireCapableBeanFactory.java:1194)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1120)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:535)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495)
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:759)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867)
	at org.eclipse.gemini.blueprint.context.support.AbstractDelegatedExecutionApplicationContext.access$1600(AbstractDelegatedExecutionApplicationContext.java:57)
	at org.eclipse.gemini.blueprint.context.support.AbstractDelegatedExecutionApplicationContext$4.run(AbstractDelegatedExecutionApplicationContext.java:322)
	at org.eclipse.gemini.blueprint.util.internal.PrivilegedUtils.executeWithCustomTCCL(PrivilegedUtils.java:85)
	at org.eclipse.gemini.blueprint.context.support.AbstractDelegatedExecutionApplicationContext.completeRefresh(AbstractDelegatedExecutionApplicationContext.java:287)
	at org.eclipse.gemini.blueprint.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor$CompleteRefreshTask.run(DependencyWaiterApplicationContextExecutor.java:137)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.IllegalStateException: Failed to introspect Class [com.predict360.plugin.customfield.searcher.MultiSelectSearcher] from ClassLoader [com.predict360.plugin.customfield.multi-select-custom-field [257]]
	at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:659)
	at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:556)
	at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:541)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.determineCandidateConstructors(AutowiredAnnotationBeanPostProcessor.java:242)
	... 18 more
	at java.lang.Class.getDeclaredMethods0(Native Method)
	at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
	at java.lang.Class.getDeclaredMethods(Unknown Source)
	at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:641)
	... 21 more
Caused by: java.lang.ClassNotFoundException: com.atlassian.jira.jql.values.ClauseValuesGenerator not found by com.predict360.plugin.customfield.multi-select-custom-field [257]
	at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1639)
	at org.apache.felix.framework.BundleWiringImpl.access$200(BundleWiringImpl.java:80)
	at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:2053)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	... 25 more