java.lang.NullPointerException

Cannot invoke "concept.data.SWPage.siteForThisPage()" because the return value of "gagnrad.components.GRLook.selectedPage()" is null

File Line # Method Package Bundle
GRLook.java 43 pages gagnrad.components Gagnrad
DirectMethodHandleAccessor.java 103 invoke java.base/jdk.internal.reflect
Method.java 580 invoke java.base/java.lang.reflect
NSKeyValueCoding.java 636 methodValue com.webobjects.foundation JavaFoundation
NSKeyValueCoding.java 1134 valueInObject com.webobjects.foundation JavaFoundation
NSKeyValueCoding.java 1324 valueForKey com.webobjects.foundation JavaFoundation
WOComponent.java 1736 valueForKey com.webobjects.appserver JavaWebObjects
NSKeyValueCoding.java 447 valueForKey com.webobjects.foundation JavaFoundation
NSKeyValueCodingAdditions.java 212 valueForKeyPath com.webobjects.foundation JavaFoundation
WOComponent.java 1804 valueForKeyPath com.webobjects.appserver JavaWebObjects
SWBaseComponent.java 67 valueForKeyPath concept SoloWeb
WOKeyValueAssociation.java 50 valueInComponent com.webobjects.appserver._private JavaWebObjects
WOComponent.java 731 valueForBinding com.webobjects.appserver JavaWebObjects
CPNavigation.java 40 list concept.components.client SoloWeb
DirectMethodHandleAccessor.java 103 invoke java.base/jdk.internal.reflect
Method.java 580 invoke java.base/java.lang.reflect
NSKeyValueCoding.java 636 methodValue com.webobjects.foundation JavaFoundation
NSKeyValueCoding.java 1134 valueInObject com.webobjects.foundation JavaFoundation
NSKeyValueCoding.java 1324 valueForKey com.webobjects.foundation JavaFoundation
WOComponent.java 1736 valueForKey com.webobjects.appserver JavaWebObjects
NSKeyValueCoding.java 447 valueForKey com.webobjects.foundation JavaFoundation
NSKeyValueCodingAdditions.java 216 valueForKeyPath com.webobjects.foundation JavaFoundation
WOComponent.java 1804 valueForKeyPath com.webobjects.appserver JavaWebObjects
SWBaseComponent.java 67 valueForKeyPath concept SoloWeb
WOKeyValueAssociation.java 50 valueInComponent com.webobjects.appserver._private JavaWebObjects
WOAssociation.java 276 booleanValueInComponent com.webobjects.appserver JavaWebObjects
ERXWOConditional.java 47 conditionInComponent er.extensions.components.conditionals ERExtensions
ERXWOConditional.java 52 meetsConditionInComponent er.extensions.components.conditionals ERExtensions
ERXWOConditional.java 124 appendToResponse er.extensions.components.conditionals ERExtensions
WOComponent.java 1122 appendToResponse com.webobjects.appserver JavaWebObjects
ERXComponent.java 187 appendToResponse er.extensions.components ERExtensions
WOComponentReference.java 135 appendToResponse com.webobjects.appserver._private JavaWebObjects
WODynamicGroup.java 126 appendChildrenToResponse com.webobjects.appserver._private JavaWebObjects
WODynamicGroup.java 136 appendToResponse com.webobjects.appserver._private JavaWebObjects
WOComponent.java 1122 appendToResponse com.webobjects.appserver JavaWebObjects
ERXComponent.java 187 appendToResponse er.extensions.components ERExtensions
SWGenericSiteLook.java 56 appendToResponse concept SoloWeb
GRLook.java 29 appendToResponse gagnrad.components Gagnrad
WOComponentReference.java 135 appendToResponse com.webobjects.appserver._private JavaWebObjects
ERXSwitchComponent.java 136 appendToResponse er.extensions.components._private ERExtensions
WOComponent.java 1122 appendToResponse com.webobjects.appserver JavaWebObjects
ERXComponent.java 187 appendToResponse er.extensions.components ERExtensions
WOComponent.java 1574 _appendPageToResponse com.webobjects.appserver JavaWebObjects
WOComponent.java 1543 _generateResponseInContext com.webobjects.appserver JavaWebObjects
WOComponent.java 1538 generateResponse com.webobjects.appserver JavaWebObjects
WOActionRequestHandler.java 278 _handleRequest com.webobjects.appserver._private JavaWebObjects
WOActionRequestHandler.java 161 handleRequest com.webobjects.appserver._private JavaWebObjects
ERXDirectActionRequestHandler.java 127 handleRequest er.extensions.appserver ERExtensions
WOApplication.java 1687 dispatchRequest com.webobjects.appserver JavaWebObjects
ERXApplication.java 2090 dispatchRequestImmediately er.extensions.appserver ERExtensions
ERXApplication.java 2055 dispatchRequest er.extensions.appserver ERExtensions
WOWorkerThread.java 144 runOnce com.webobjects.appserver._private JavaWebObjects
WOWorkerThread.java 226 run com.webobjects.appserver._private JavaWebObjects
Thread.java 1583 run java.base/java.lang

The exception occurred in the application Gagnrad