Re: NullPointerException in EODatabaseContext java
I supposed that the component ec should be created within the component itself. So that any invalid objects will not affect other ec. - Original Message - From: Raghavender Bokka To: Cheong Hee (Gmail) Cc: Development WebObjects Sent: Friday, June 01, 2012 7:16 PM Subject: Re: NullPointerException in EODatabaseContext java Hi Cheong Hee, I am using the localEditingContext() method of GenericComponent class which internally creates the ERXEC.newEditingContext(). Please advise if this not the component-based ec. Regards, Raghu. On 01-Jun-2012, at 4:35 PM, Cheong Hee (Gmail) wrote: Hi Raghu May be you really need to look at how the object model design. Usually, once the invalidate all objects, the ec will fetch again new objects and theirs object graph. May be some code will be helpful. Also, pls remember to have component-based ec. Cheers Cheong Hee - Original Message - From: "Raghavender Bokka" To: "Cheong Hee (Gmail)" Cc: "Development WebObjects" Sent: Friday, June 01, 2012 2:17 PM Subject: Re: NullPointerException in EODatabaseContext java Hi Cheong Hee, I tried invalidating the objects in ec, then we are able to view the details of this eo object, but the other similar objects in the wodisplaygroup list is behaving weirdly when they are selected. Regards, Raghu. On 01-Jun-2012, at 11:41 AM, Cheong Hee (Gmail) wrote: i guessed one quick way is to invalidate the objects in ec and force it to refetch from db. - Original Message - From: "Raghavender Bokka" To: "Development WebObjects" Sent: Thursday, May 31, 2012 9:04 PM Subject: NullPointerException in EODatabaseContext java Hi Team, I have created an enterprise object with one-to-many relationship objects associating. Then in the search page searched for these enterprise objects (that has WODisplayGroup), I am able to view the newly created object, but when I try to select that object to view the details it is generating the following exception. If I restart the application then I am able to view the details of the newly created object without any error, or If we try accessing the newly created object after sometime (around half an hour later) then without error able to view the object details. Otherwise the enterprise object is getting null. This enterprise object's super class has the database table, and this object does not has the database table, it points to the same database table of the super class. And the to-many relationship is existing with this enterprise object (sub-class), not the super class. Any help would be appreciated. EXCEPTION-- [2012-5-31 8:25:4 EDT] java.lang.NullPointerException at com.webobjects.eoaccess.EODatabaseContext.arrayFaultWithSourceGlobalID(EODatabaseContext.java:3510) at com.webobjects.eoaccess.EODatabaseContext._fireDeferredFaultWithSourceObject(EODatabaseContext.java:2377) at com.webobjects.eoaccess.EOAccessDeferredFaultHandler.createFaultForDeferredFault(EOAccessDeferredFaultHandler.java:49) at com.webobjects.eocontrol.EOCustomObject.willReadRelationship(EOCustomObject.java:1279) at com.webobjects.eocontrol._EOMutableKnownKeyDictionary$Initializer$_LazyGenericRecordBinding.valueInObject(_EOMutableKnownKeyDictionary.java:614) at com.webobjects.eocontrol.EOCustomObject.storedValueForKey(EOCustomObject.java:1634) at _StoredDistrictTest.storedTestItems(_StoredDistrictTest.java:33) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at KeyValueCodingProtectedAccessor.methodValue(KeyValueCodingProtectedAccessor.java:60) at com.webobjects.foundation.NSKeyValueCoding$_MethodBinding.valueInObject(NSKeyValueCoding.java:1134) at com.webobjects.eocontrol.EOCustomObject.valueForKey(EOCustomObject.java:1498) at com.webobjects.eocontrol.EOCustomObject.eoDescription(EOCustomObject.java:793) at com.webobjects.eocontrol.EOCustomObject.toString(EOCustomObject.java:299) at java.lang.String.valueOf(String.java:2826) at java.lang.StringBuilder.append(StringBuilder.java:115) at StoredTestListPage.printTestSession(StoredTestListPage.java:276) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
Re: NullPointerException in EODatabaseContext java
Hi Cheong Hee, I am using the localEditingContext() method of GenericComponent class which internally creates the ERXEC.newEditingContext(). Please advise if this not the component-based ec. Regards, Raghu. On 01-Jun-2012, at 4:35 PM, Cheong Hee (Gmail) wrote: > Hi Raghu > > May be you really need to look at how the object model design. Usually, once > the invalidate all objects, the ec will fetch again new objects and theirs > object graph. May be some code will be helpful. Also, pls remember to have > component-based ec. > > Cheers > > Cheong Hee > > - Original Message - From: "Raghavender Bokka" > > To: "Cheong Hee (Gmail)" > Cc: "Development WebObjects" > Sent: Friday, June 01, 2012 2:17 PM > Subject: Re: NullPointerException in EODatabaseContext java > > > Hi Cheong Hee, > > I tried invalidating the objects in ec, then we are able to view the details > of this eo object, but the other similar objects in the wodisplaygroup list > is behaving weirdly when they are selected. > > Regards, > Raghu. > > On 01-Jun-2012, at 11:41 AM, Cheong Hee (Gmail) wrote: > >> i guessed one quick way is to invalidate the objects in ec and force it to >> refetch from db. >> >> - Original Message ----- From: "Raghavender Bokka" >> >> To: "Development WebObjects" >> Sent: Thursday, May 31, 2012 9:04 PM >> Subject: NullPointerException in EODatabaseContext java >> >> >>> Hi Team, >>> >>> I have created an enterprise object with one-to-many relationship objects >>> associating. Then in the search page searched for these enterprise objects >>> (that has WODisplayGroup), I am able to view the newly created object, but >>> when I try to select that object to view the details it is generating the >>> following exception. If I restart the application then I am able to view >>> the details of the newly created object without any error, or If we try >>> accessing the newly created object after sometime (around half an hour >>> later) then without error able to view the object details. Otherwise the >>> enterprise object is getting null. >>> >>> This enterprise object's super class has the database table, and this >>> object does not has the database table, it points to the same database >>> table of the super class. And the to-many relationship is existing with >>> this enterprise object (sub-class), not the super class. >>> >>> Any help would be appreciated. >>> >>> EXCEPTION-- >>> [2012-5-31 8:25:4 EDT] java.lang.NullPointerException >>> at >>> com.webobjects.eoaccess.EODatabaseContext.arrayFaultWithSourceGlobalID(EODatabaseContext.java:3510) >>> at >>> com.webobjects.eoaccess.EODatabaseContext._fireDeferredFaultWithSourceObject(EODatabaseContext.java:2377) >>> at >>> com.webobjects.eoaccess.EOAccessDeferredFaultHandler.createFaultForDeferredFault(EOAccessDeferredFaultHandler.java:49) >>> at >>> com.webobjects.eocontrol.EOCustomObject.willReadRelationship(EOCustomObject.java:1279) >>> at >>> com.webobjects.eocontrol._EOMutableKnownKeyDictionary$Initializer$_LazyGenericRecordBinding.valueInObject(_EOMutableKnownKeyDictionary.java:614) >>> at >>> com.webobjects.eocontrol.EOCustomObject.storedValueForKey(EOCustomObject.java:1634) >>> at _StoredDistrictTest.storedTestItems(_StoredDistrictTest.java:33) >>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >>> at >>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) >>> at >>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) >>> at java.lang.reflect.Method.invoke(Method.java:597) >>> at >>> KeyValueCodingProtectedAccessor.methodValue(KeyValueCodingProtectedAccessor.java:60) >>> at >>> com.webobjects.foundation.NSKeyValueCoding$_MethodBinding.valueInObject(NSKeyValueCoding.java:1134) >>> at >>> com.webobjects.eocontrol.EOCustomObject.valueForKey(EOCustomObject.java:1498) >>> at >>> com.webobjects.eocontrol.EOCustomObject.eoDescription(EOCustomObject.java:793) >>> at >>> com.webobjects.eocontrol.EOCustomObject.toString(EOCustomObject.java:299) >>> at java.lang.String.valueOf(String.java:2826) >>> at java.la
Re: NullPointerException in EODatabaseContext java
Hi Raghu May be you really need to look at how the object model design. Usually, once the invalidate all objects, the ec will fetch again new objects and theirs object graph. May be some code will be helpful. Also, pls remember to have component-based ec. Cheers Cheong Hee - Original Message - From: "Raghavender Bokka" To: "Cheong Hee (Gmail)" Cc: "Development WebObjects" Sent: Friday, June 01, 2012 2:17 PM Subject: Re: NullPointerException in EODatabaseContext java Hi Cheong Hee, I tried invalidating the objects in ec, then we are able to view the details of this eo object, but the other similar objects in the wodisplaygroup list is behaving weirdly when they are selected. Regards, Raghu. On 01-Jun-2012, at 11:41 AM, Cheong Hee (Gmail) wrote: i guessed one quick way is to invalidate the objects in ec and force it to refetch from db. - Original Message - From: "Raghavender Bokka" To: "Development WebObjects" Sent: Thursday, May 31, 2012 9:04 PM Subject: NullPointerException in EODatabaseContext java Hi Team, I have created an enterprise object with one-to-many relationship objects associating. Then in the search page searched for these enterprise objects (that has WODisplayGroup), I am able to view the newly created object, but when I try to select that object to view the details it is generating the following exception. If I restart the application then I am able to view the details of the newly created object without any error, or If we try accessing the newly created object after sometime (around half an hour later) then without error able to view the object details. Otherwise the enterprise object is getting null. This enterprise object's super class has the database table, and this object does not has the database table, it points to the same database table of the super class. And the to-many relationship is existing with this enterprise object (sub-class), not the super class. Any help would be appreciated. EXCEPTION-- [2012-5-31 8:25:4 EDT] java.lang.NullPointerException at com.webobjects.eoaccess.EODatabaseContext.arrayFaultWithSourceGlobalID(EODatabaseContext.java:3510) at com.webobjects.eoaccess.EODatabaseContext._fireDeferredFaultWithSourceObject(EODatabaseContext.java:2377) at com.webobjects.eoaccess.EOAccessDeferredFaultHandler.createFaultForDeferredFault(EOAccessDeferredFaultHandler.java:49) at com.webobjects.eocontrol.EOCustomObject.willReadRelationship(EOCustomObject.java:1279) at com.webobjects.eocontrol._EOMutableKnownKeyDictionary$Initializer$_LazyGenericRecordBinding.valueInObject(_EOMutableKnownKeyDictionary.java:614) at com.webobjects.eocontrol.EOCustomObject.storedValueForKey(EOCustomObject.java:1634) at _StoredDistrictTest.storedTestItems(_StoredDistrictTest.java:33) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at KeyValueCodingProtectedAccessor.methodValue(KeyValueCodingProtectedAccessor.java:60) at com.webobjects.foundation.NSKeyValueCoding$_MethodBinding.valueInObject(NSKeyValueCoding.java:1134) at com.webobjects.eocontrol.EOCustomObject.valueForKey(EOCustomObject.java:1498) at com.webobjects.eocontrol.EOCustomObject.eoDescription(EOCustomObject.java:793) at com.webobjects.eocontrol.EOCustomObject.toString(EOCustomObject.java:299) at java.lang.String.valueOf(String.java:2826) at java.lang.StringBuilder.append(StringBuilder.java:115) at StoredTestListPage.printTestSession(StoredTestListPage.java:276) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at KeyValueCodingProtectedAccessor.methodValue(KeyValueCodingProtectedAccessor.java:60) at com.webobjects.foundation.NSKeyValueCoding$_MethodBinding.valueInObject(NSKeyValueCoding.java:1134) at com.webobjects.foundation.NSKeyValueCoding$DefaultImplementation.valueForKey(NSKeyValueCoding.java:1324) at com.webobjects.appserver.WOComponent.valueForKey(WOComponent.java:1736) at com.webobjects.foundation.NSKeyValueCoding$Utility.valueForKey(NSKeyValueCoding.java:447) at com.webobjects.foundation.NSKeyValueCodingAdditions$DefaultImplementation.valueForKeyPath(NSKeyValueCodingAdditions.java:212) at com.webobjects.appserver.WOComponent.valueForKeyPath(WO
Re: NullPointerException in EODatabaseContext java
Hi Cheong Hee, I tried invalidating the objects in ec, then we are able to view the details of this eo object, but the other similar objects in the wodisplaygroup list is behaving weirdly when they are selected. Regards, Raghu. On 01-Jun-2012, at 11:41 AM, Cheong Hee (Gmail) wrote: > i guessed one quick way is to invalidate the objects in ec and force it to > refetch from db. > > - Original Message - From: "Raghavender Bokka" > > To: "Development WebObjects" > Sent: Thursday, May 31, 2012 9:04 PM > Subject: NullPointerException in EODatabaseContext java > > >> Hi Team, >> >> I have created an enterprise object with one-to-many relationship objects >> associating. Then in the search page searched for these enterprise objects >> (that has WODisplayGroup), I am able to view the newly created object, but >> when I try to select that object to view the details it is generating the >> following exception. If I restart the application then I am able to view >> the details of the newly created object without any error, or If we try >> accessing the newly created object after sometime (around half an hour >> later) then without error able to view the object details. Otherwise the >> enterprise object is getting null. >> >> This enterprise object's super class has the database table, and this object >> does not has the database table, it points to the same database table of the >> super class. And the to-many relationship is existing with this enterprise >> object (sub-class), not the super class. >> >> Any help would be appreciated. >> >> EXCEPTION-- >> [2012-5-31 8:25:4 EDT] java.lang.NullPointerException >> at >> com.webobjects.eoaccess.EODatabaseContext.arrayFaultWithSourceGlobalID(EODatabaseContext.java:3510) >> at >> com.webobjects.eoaccess.EODatabaseContext._fireDeferredFaultWithSourceObject(EODatabaseContext.java:2377) >> at >> com.webobjects.eoaccess.EOAccessDeferredFaultHandler.createFaultForDeferredFault(EOAccessDeferredFaultHandler.java:49) >> at >> com.webobjects.eocontrol.EOCustomObject.willReadRelationship(EOCustomObject.java:1279) >> at >> com.webobjects.eocontrol._EOMutableKnownKeyDictionary$Initializer$_LazyGenericRecordBinding.valueInObject(_EOMutableKnownKeyDictionary.java:614) >> at >> com.webobjects.eocontrol.EOCustomObject.storedValueForKey(EOCustomObject.java:1634) >> at _StoredDistrictTest.storedTestItems(_StoredDistrictTest.java:33) >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >> at >> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) >> at >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) >> at java.lang.reflect.Method.invoke(Method.java:597) >> at >> KeyValueCodingProtectedAccessor.methodValue(KeyValueCodingProtectedAccessor.java:60) >> at >> com.webobjects.foundation.NSKeyValueCoding$_MethodBinding.valueInObject(NSKeyValueCoding.java:1134) >> at >> com.webobjects.eocontrol.EOCustomObject.valueForKey(EOCustomObject.java:1498) >> at >> com.webobjects.eocontrol.EOCustomObject.eoDescription(EOCustomObject.java:793) >> at >> com.webobjects.eocontrol.EOCustomObject.toString(EOCustomObject.java:299) >> at java.lang.String.valueOf(String.java:2826) >> at java.lang.StringBuilder.append(StringBuilder.java:115) >> at StoredTestListPage.printTestSession(StoredTestListPage.java:276) >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >> at >> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) >> at >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) >> at java.lang.reflect.Method.invoke(Method.java:597) >> at >> KeyValueCodingProtectedAccessor.methodValue(KeyValueCodingProtectedAccessor.java:60) >> at >> com.webobjects.foundation.NSKeyValueCoding$_MethodBinding.valueInObject(NSKeyValueCoding.java:1134) >> at >> com.webobjects.foundation.NSKeyValueCoding$DefaultImplementation.valueForKey(NSKeyValueCoding.java:1324) >> at >> com.webobjects.appserver.WOComponent.valueForKey(WOComponent.java:1736) >> at >> com.webobjects.foundation.NSKeyValueCoding$Utility.valueForKey(NSKeyValueCoding.java:447) >> at >> com.webobjects.foundation.NSKeyValueCodingAdditions$DefaultImp
Re: NullPointerException in EODatabaseContext java
i guessed one quick way is to invalidate the objects in ec and force it to refetch from db. - Original Message - From: "Raghavender Bokka" To: "Development WebObjects" Sent: Thursday, May 31, 2012 9:04 PM Subject: NullPointerException in EODatabaseContext java Hi Team, I have created an enterprise object with one-to-many relationship objects associating. Then in the search page searched for these enterprise objects (that has WODisplayGroup), I am able to view the newly created object, but when I try to select that object to view the details it is generating the following exception. If I restart the application then I am able to view the details of the newly created object without any error, or If we try accessing the newly created object after sometime (around half an hour later) then without error able to view the object details. Otherwise the enterprise object is getting null. This enterprise object's super class has the database table, and this object does not has the database table, it points to the same database table of the super class. And the to-many relationship is existing with this enterprise object (sub-class), not the super class. Any help would be appreciated. EXCEPTION-- [2012-5-31 8:25:4 EDT] java.lang.NullPointerException at com.webobjects.eoaccess.EODatabaseContext.arrayFaultWithSourceGlobalID(EODatabaseContext.java:3510) at com.webobjects.eoaccess.EODatabaseContext._fireDeferredFaultWithSourceObject(EODatabaseContext.java:2377) at com.webobjects.eoaccess.EOAccessDeferredFaultHandler.createFaultForDeferredFault(EOAccessDeferredFaultHandler.java:49) at com.webobjects.eocontrol.EOCustomObject.willReadRelationship(EOCustomObject.java:1279) at com.webobjects.eocontrol._EOMutableKnownKeyDictionary$Initializer$_LazyGenericRecordBinding.valueInObject(_EOMutableKnownKeyDictionary.java:614) at com.webobjects.eocontrol.EOCustomObject.storedValueForKey(EOCustomObject.java:1634) at _StoredDistrictTest.storedTestItems(_StoredDistrictTest.java:33) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at KeyValueCodingProtectedAccessor.methodValue(KeyValueCodingProtectedAccessor.java:60) at com.webobjects.foundation.NSKeyValueCoding$_MethodBinding.valueInObject(NSKeyValueCoding.java:1134) at com.webobjects.eocontrol.EOCustomObject.valueForKey(EOCustomObject.java:1498) at com.webobjects.eocontrol.EOCustomObject.eoDescription(EOCustomObject.java:793) at com.webobjects.eocontrol.EOCustomObject.toString(EOCustomObject.java:299) at java.lang.String.valueOf(String.java:2826) at java.lang.StringBuilder.append(StringBuilder.java:115) at StoredTestListPage.printTestSession(StoredTestListPage.java:276) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at KeyValueCodingProtectedAccessor.methodValue(KeyValueCodingProtectedAccessor.java:60) at com.webobjects.foundation.NSKeyValueCoding$_MethodBinding.valueInObject(NSKeyValueCoding.java:1134) at com.webobjects.foundation.NSKeyValueCoding$DefaultImplementation.valueForKey(NSKeyValueCoding.java:1324) at com.webobjects.appserver.WOComponent.valueForKey(WOComponent.java:1736) at com.webobjects.foundation.NSKeyValueCoding$Utility.valueForKey(NSKeyValueCoding.java:447) at com.webobjects.foundation.NSKeyValueCodingAdditions$DefaultImplementation.valueForKeyPath(NSKeyValueCodingAdditions.java:212) at com.webobjects.appserver.WOComponent.valueForKeyPath(WOComponent.java:1804) at com.webobjects.appserver._private.WOKeyValueAssociation.valueInComponent(WOKeyValueAssociation.java:50) at com.webobjects.appserver._private.WOHyperlink.invokeAction(WOHyperlink.java:98) at er.extensions.components._private.ERXHyperlink.invokeAction(ERXHyperlink.java:66) at com.webobjects.appserver._private.WODynamicGroup.invokeChildrenAction(WODynamicGroup.java:105) at com.webobjects.appserver._private.WODynamicGroup.invokeAction(WODynamicGroup.java:115) at er.extensions.components._private.ERXWORepetition.invokeAction(ERXWORepetition.java:496) at com.webobjects.appserver._private.WODynamicGroup.invokeChildrenAction(WODynamicGroup.java:105) at com.webobjects.appserver._private.WODynamicGroup.invokeAction(WODynamic
Re: NullPointerException in EODatabaseContext java
Something is wrong with your model or how you are creating this new object. Are you setting the relationship both ways? On 2012-05-31, at 6:04 AM, Raghavender Bokka wrote: > Hi Team, > > I have created an enterprise object with one-to-many relationship objects > associating. Then in the search page searched for these enterprise objects > (that has WODisplayGroup), I am able to view the newly created object, but > when I try to select that object to view the details it is generating the > following exception. If I restart the application then I am able to view > the details of the newly created object without any error, or If we try > accessing the newly created object after sometime (around half an hour later) > then without error able to view the object details. Otherwise the enterprise > object is getting null. > > This enterprise object's super class has the database table, and this object > does not has the database table, it points to the same database table of the > super class. And the to-many relationship is existing with this enterprise > object (sub-class), not the super class. > > Any help would be appreciated. > > EXCEPTION-- > [2012-5-31 8:25:4 EDT] java.lang.NullPointerException >at > com.webobjects.eoaccess.EODatabaseContext.arrayFaultWithSourceGlobalID(EODatabaseContext.java:3510) >at > com.webobjects.eoaccess.EODatabaseContext._fireDeferredFaultWithSourceObject(EODatabaseContext.java:2377) >at > com.webobjects.eoaccess.EOAccessDeferredFaultHandler.createFaultForDeferredFault(EOAccessDeferredFaultHandler.java:49) >at > com.webobjects.eocontrol.EOCustomObject.willReadRelationship(EOCustomObject.java:1279) >at > com.webobjects.eocontrol._EOMutableKnownKeyDictionary$Initializer$_LazyGenericRecordBinding.valueInObject(_EOMutableKnownKeyDictionary.java:614) >at > com.webobjects.eocontrol.EOCustomObject.storedValueForKey(EOCustomObject.java:1634) >at _StoredDistrictTest.storedTestItems(_StoredDistrictTest.java:33) >at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) >at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) >at java.lang.reflect.Method.invoke(Method.java:597) >at > KeyValueCodingProtectedAccessor.methodValue(KeyValueCodingProtectedAccessor.java:60) >at > com.webobjects.foundation.NSKeyValueCoding$_MethodBinding.valueInObject(NSKeyValueCoding.java:1134) >at > com.webobjects.eocontrol.EOCustomObject.valueForKey(EOCustomObject.java:1498) >at > com.webobjects.eocontrol.EOCustomObject.eoDescription(EOCustomObject.java:793) >at > com.webobjects.eocontrol.EOCustomObject.toString(EOCustomObject.java:299) >at java.lang.String.valueOf(String.java:2826) >at java.lang.StringBuilder.append(StringBuilder.java:115) >at StoredTestListPage.printTestSession(StoredTestListPage.java:276) >at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) >at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) >at java.lang.reflect.Method.invoke(Method.java:597) >at > KeyValueCodingProtectedAccessor.methodValue(KeyValueCodingProtectedAccessor.java:60) >at > com.webobjects.foundation.NSKeyValueCoding$_MethodBinding.valueInObject(NSKeyValueCoding.java:1134) >at > com.webobjects.foundation.NSKeyValueCoding$DefaultImplementation.valueForKey(NSKeyValueCoding.java:1324) >at > com.webobjects.appserver.WOComponent.valueForKey(WOComponent.java:1736) >at > com.webobjects.foundation.NSKeyValueCoding$Utility.valueForKey(NSKeyValueCoding.java:447) >at > com.webobjects.foundation.NSKeyValueCodingAdditions$DefaultImplementation.valueForKeyPath(NSKeyValueCodingAdditions.java:212) >at > com.webobjects.appserver.WOComponent.valueForKeyPath(WOComponent.java:1804) >at > com.webobjects.appserver._private.WOKeyValueAssociation.valueInComponent(WOKeyValueAssociation.java:50) >at > com.webobjects.appserver._private.WOHyperlink.invokeAction(WOHyperlink.java:98) >at > er.extensions.components._private.ERXHyperlink.invokeAction(ERXHyperlink.java:66) >at > com.webobjects.appserver._private.WODynamicGroup.invokeChildrenAction(WODynamicGroup.java:105) >at > com.webobjects.appserver._private.WODynamicGroup.invokeAction(WODynamicGroup.java:115) >at > er.extensions.components._private.ERXWORepetition.invokeAction(ERXWORepetition.java:496) >at > com.webobjects.appserver._private.WODynamicGroup.invokeChildrenAction(WODynamicGroup.java:105) >at > com.webobjects.appserver._
NullPointerException in EODatabaseContext java
Hi Team, I have created an enterprise object with one-to-many relationship objects associating. Then in the search page searched for these enterprise objects (that has WODisplayGroup), I am able to view the newly created object, but when I try to select that object to view the details it is generating the following exception. If I restart the application then I am able to view the details of the newly created object without any error, or If we try accessing the newly created object after sometime (around half an hour later) then without error able to view the object details. Otherwise the enterprise object is getting null. This enterprise object's super class has the database table, and this object does not has the database table, it points to the same database table of the super class. And the to-many relationship is existing with this enterprise object (sub-class), not the super class. Any help would be appreciated. EXCEPTION-- [2012-5-31 8:25:4 EDT] java.lang.NullPointerException at com.webobjects.eoaccess.EODatabaseContext.arrayFaultWithSourceGlobalID(EODatabaseContext.java:3510) at com.webobjects.eoaccess.EODatabaseContext._fireDeferredFaultWithSourceObject(EODatabaseContext.java:2377) at com.webobjects.eoaccess.EOAccessDeferredFaultHandler.createFaultForDeferredFault(EOAccessDeferredFaultHandler.java:49) at com.webobjects.eocontrol.EOCustomObject.willReadRelationship(EOCustomObject.java:1279) at com.webobjects.eocontrol._EOMutableKnownKeyDictionary$Initializer$_LazyGenericRecordBinding.valueInObject(_EOMutableKnownKeyDictionary.java:614) at com.webobjects.eocontrol.EOCustomObject.storedValueForKey(EOCustomObject.java:1634) at _StoredDistrictTest.storedTestItems(_StoredDistrictTest.java:33) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at KeyValueCodingProtectedAccessor.methodValue(KeyValueCodingProtectedAccessor.java:60) at com.webobjects.foundation.NSKeyValueCoding$_MethodBinding.valueInObject(NSKeyValueCoding.java:1134) at com.webobjects.eocontrol.EOCustomObject.valueForKey(EOCustomObject.java:1498) at com.webobjects.eocontrol.EOCustomObject.eoDescription(EOCustomObject.java:793) at com.webobjects.eocontrol.EOCustomObject.toString(EOCustomObject.java:299) at java.lang.String.valueOf(String.java:2826) at java.lang.StringBuilder.append(StringBuilder.java:115) at StoredTestListPage.printTestSession(StoredTestListPage.java:276) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at KeyValueCodingProtectedAccessor.methodValue(KeyValueCodingProtectedAccessor.java:60) at com.webobjects.foundation.NSKeyValueCoding$_MethodBinding.valueInObject(NSKeyValueCoding.java:1134) at com.webobjects.foundation.NSKeyValueCoding$DefaultImplementation.valueForKey(NSKeyValueCoding.java:1324) at com.webobjects.appserver.WOComponent.valueForKey(WOComponent.java:1736) at com.webobjects.foundation.NSKeyValueCoding$Utility.valueForKey(NSKeyValueCoding.java:447) at com.webobjects.foundation.NSKeyValueCodingAdditions$DefaultImplementation.valueForKeyPath(NSKeyValueCodingAdditions.java:212) at com.webobjects.appserver.WOComponent.valueForKeyPath(WOComponent.java:1804) at com.webobjects.appserver._private.WOKeyValueAssociation.valueInComponent(WOKeyValueAssociation.java:50) at com.webobjects.appserver._private.WOHyperlink.invokeAction(WOHyperlink.java:98) at er.extensions.components._private.ERXHyperlink.invokeAction(ERXHyperlink.java:66) at com.webobjects.appserver._private.WODynamicGroup.invokeChildrenAction(WODynamicGroup.java:105) at com.webobjects.appserver._private.WODynamicGroup.invokeAction(WODynamicGroup.java:115) at er.extensions.components._private.ERXWORepetition.invokeAction(ERXWORepetition.java:496) at com.webobjects.appserver._private.WODynamicGroup.invokeChildrenAction(WODynamicGroup.java:105) at com.webobjects.appserver._private.WODynamicGroup.invokeAction(WODynamicGroup.java:115) at com.webobjects.appserver._private.WOConditional.invokeAction(WOConditional.java:86) at com.webobjects.appserver._private.WODynamicGroup.invokeChildrenAction(WODynamicGroup.java:105) at com.webobjects.appserver._private.WODynam
