[JAVA3D] Exception with 1.2.1 beta 1 (OGL)

[Rob Nugent]

Hi,   I just tried to move to Java 3D 1.2.1 beta 1 (OGL version) on WinNT 4.0   I was previously on Java 1.2 (also OGL)   I am now getting the following exception which wasn't occurring before :   Exception in thread "main" java.lang.NullPointerException         at javax.media.j3d.CompileState.addShape(CompileState.java:156)         at javax.media.j3d.Shape3DRetained.merge(Shape3DRetained.java:1716)         at javax.media.j3d.GroupRetained.merge(GroupRetained.java:1788)         at javax.media.j3d.TransformGroupRetained.compile(TransformGroupRetained.java:308)         at javax.media.j3d.GroupRetained.compile(GroupRetained.java:1761)         at javax.media.j3d.BranchGroupRetained.compile(BranchGroupRetained.java:146)         at javax.media.j3d.BranchGroupRetained.compile(BranchGroupRetained.java:121)         at javax.media.j3d.BranchGroup.compile(BranchGroup.java:82)         at rob.ref.Slab.<init>(Slab.java:649)         at rob.ref.Wall.doSlab(Wall.java:66)         at rob.ref.Room.doWallSlabs(Room.java:472)         at rob.ref.House.init(House.java:119)         at rob.ref.House.setRooms(House.java:168)         at rob.ref.ManorHouse.<init>(ManorHouse.java:51)         at rob.ref.Start.init(Start.java:286)         at rob.ref.Start.main(Start.java:415)   Any suggestions ?   Thanks Rob     Rob Nugent Development Manager Critical Path Southampton [EMAIL PROTECTED] http://www.cp.net Tel: +44 (0) 1489 585503 Fax: +44 (0) 1489 881363