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java.lang.NumberFormatException: null at java.lang.Long.parseLong(Long.java:404) at java.lang.Long.parseLong(Long.java:483) at java_lang_Long$parseLong.call(Unknown Source) at com.onresolve.jira.behaviours.BehaviourManagerImpl.runValidator(BehaviourManagerImpl.groovy:115) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite$PogoCachedMethodSite.invoke(PogoMetaMethodSite.java:166) at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite.callCurrent(PogoMetaMethodSite.java:56) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:145) at com.onresolve.jira.behaviours.BehaviourManagerImpl.runValidator(BehaviourManagerImpl.groovy:95) at com.onresolve.jira.behaviours.restservice.BehavioursEndpoint.runValidator(BehavioursEndpoint.groovy:74)