Null pointer fix for PreviewPane not in main window
Null pointer fix for PreviewPane not in main window

jhshinn/jabref,shitikanth/jabref,mredaelli/jabref,Braunch/jabref,shitikanth/jabref,Braunch/jabref,oscargus/jabref,jhshinn/jabref,shitikanth/jabref,Braunch/jabref,Siedlerchr/jabref,mairdl/jabref,jhshinn/jabref,ayanai1/jabref,JabRef/jabref,shitikanth/jabref,mredaelli/jabref,oscargus/jabref,jhshinn/jabref,bartsch-dev/jabref,ayanai1/jabref,Mr-DLib/jabref,grimes2/jabref,zellerdev/jabref,tschechlovdev/jabref,zellerdev/jabref,tschechlovdev/jabref,mairdl/jabref,Braunch/jabref,ayanai1/jabref,obraliar/jabref,zellerdev/jabref,mredaelli/jabref,ayanai1/jabref,sauliusg/jabref,Siedlerchr/jabref,bartsch-dev/jabref,motokito/jabref,zellerdev/jabref,obraliar/jabref,tschechlovdev/jabref,bartsch-dev/jabref,mairdl/jabref,Mr-DLib/jabref,shitikanth/jabref,Siedlerchr/jabref,grimes2/jabref,tobiasdiez/jabref,obraliar/jabref,motokito/jabref,zellerdev/jabref,Mr-DLib/jabref,grimes2/jabref,motokito/jabref,oscargus/jabref,jhshinn/jabref,Braunch/jabref,Mr-DLib/jabref,JabRef/jabref,motokito/jabref,grimes2/jabref,mredaelli/jabref,tschechlovdev/jabref,motokito/jabref,grimes2/jabref,ayanai1/jabref,obraliar/jabref,sauliusg/jabref,bartsch-dev/jabref,bartsch-dev/jabref,tobiasdiez/jabref,sauliusg/jabref,mairdl/jabref,tobiasdiez/jabref,Siedlerchr/jabref,tobiasdiez/jabref,oscargus/jabref,Mr-DLib/jabref,obraliar/jabref,tschechlovdev/jabref,JabRef/jabref,mredaelli/jabref,sauliusg/jabref,JabRef/jabref,oscargus/jabref,mairdl/jabref