Erro Maven Java Application NullPointer

Criei um projeto Maven Java Application e somente criei um layout de uma tela e quando tento rodar apresentar erro de NullPointer, sendo que ainda não implementei nenhum código a não ser os próprios gerados pela IDE.
Algumas sugestão?

— exec-maven-plugin:1.2.1:exec (default-cli) @ jSeguranca —
Exception in thread “AWT-EventQueue-0” java.lang.NullPointerException
at javax.swing.ImageIcon.(ImageIcon.java:217)
at br.com.jseguranca.Configuracao.initComponents(Configuracao.java:51)
at br.com.jseguranca.Configuracao.(Configuracao.java:18)
at br.com.jseguranca.Configuracao$3.run(Configuracao.java:220)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

BUILD SUCCESS

Total time: 3.121s
Finished at: Tue Mar 07 18:13:30 BRT 2017
Final Memory: 6M/245M