Definitely! 

As a potential solution, I am going to create a new empty application and copy 
across the code and components and other resources and see what happens.

Mark


> On 6 Sep 2016, at 14:08, Hugi Thordarson <h...@karlmenn.is> wrote:
> 
> This was exactly what happened when the old <nature> was missing.You’re sure 
> it’s in place?
> 
> - hugi
> 
> 
> 
>> On 6. sep. 2016, at 12:34, Mark Wardle <m...@wardle.org> wrote:
>> 
>> I can now build my application on the command-line using maven and it is 
>> packaged beautifully! 
>> 
>> It isn’t quite right from eclipse. I can run a newly created application 
>> from within eclipse, but when I try to run a migrated application, I get 
>> this error:
>> 
>> <main> java.lang.ExceptionInInitializerError
>>      at 
>> com.webobjects.appserver.WOResourceManager.__getJavaWebObjectsResourceAsStream(WOResourceManager.java:116)
>>      at 
>> com.webobjects.appserver._private.WOProperties.initUserDefaultsKeys(WOProperties.java:317)
>>      at 
>> com.webobjects.appserver.WOApplication._initWOApp(WOApplication.java:5743)
>>      at com.webobjects.appserver.WOApplication.<init>(WOApplication.java:779)
>>      at 
>> er.extensions.appserver.ajax.ERXAjaxApplication.<init>(ERXAjaxApplication.java:30)
>>      at 
>> er.extensions.appserver.ERXApplication.<init>(ERXApplication.java:1135)
>>      at com.eldrix.news.app.Application.<init>(Application.java:66)
>>      at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
>>      at 
>> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
>>      at 
>> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
>>      at java.lang.reflect.Constructor.newInstance(Constructor.java:408)
>>      at java.lang.Class.newInstance(Class.java:438)
>>      at com.webobjects.appserver.WOApplication.main(WOApplication.java:547)
>>      at er.extensions.appserver.ERXApplication.main(ERXApplication.java:890)
>>      at com.eldrix.news.app.Application.main(Application.java:63)
>> Caused by: java.lang.NullPointerException
>>      at 
>> er.extensions.appserver.ERXApplication$Loader.collectMainProps(ERXApplication.java:757)
>>      at 
>> er.extensions.appserver.ERXApplication$Loader.bundleDidLoad(ERXApplication.java:682)
>>      at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
>>      at 
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>>      at java.lang.reflect.Method.invoke(Method.java:483)
>>      at 
>> com.webobjects.foundation.NSSelector._safeInvokeMethod(NSSelector.java:122)
>>      at 
>> com.webobjects.foundation.NSNotificationCenter$_Entry.invokeMethod(NSNotificationCenter.java:588)
>>      at 
>> com.webobjects.foundation.NSNotificationCenter.postNotification(NSNotificationCenter.java:532)
>>      at 
>> com.webobjects.foundation.NSNotificationCenter.postNotification(NSNotificationCenter.java:562)
>>      at 
>> com.webobjects.foundation.NSBundle.postNotification(NSBundle.java:2546)
>>      at 
>> com.webobjects.foundation.NSBundle.LoadBundlesFromJars(NSBundle.java:735)
>>      at com.webobjects.foundation.NSBundle.<clinit>(NSBundle.java:345)
>>      ... 15 more
>> 
>> java.lang.NullPointerException
>>      at 
>> er.extensions.appserver.ERXShutdownHook$1.run(ERXShutdownHook.java:64)
>> 
>> I have ensured that I have the correct .project file. It looks as if 
>> NSProperties._mainBundleName(); is returning null.
>> 
>> This doesn’t occur when building and running from the command-line. I have 
>> tried a clean, refresh and maven refresh with no fix.
>> 
>> Mark
>> 
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