java.lang.NullPointerException: This exception has no message.

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via Stack Overflow by A Kenneth
, 1 year ago
This exception has no message.
via Stack Overflow by Maurice Barbar
, 1 year ago
This exception has no message.
via Oracle Community by 843804, 1 year ago
via Oracle Community by 843802, 1 year ago
This exception has no message.
via Netbeans Bugzilla by karlshen, 1 year ago
This exception has no message.
via GitHub by bhartman2
, 2 years ago
This exception has no message.
java.lang.NullPointerException:
at javax.swing.ImageIcon.(Unknown Source)
at Sokoban.Wall.(Wall.java:15)
at Sokoban.Board.initWorld(Board.java:77)
at Sokoban.Board.(Board.java:44)
at Sokoban.Sokoban.InitUI(Sokoban.java:15)
at Sokoban.Sokoban.(Sokoban.java:11)
at Sokoban.Sokoban.main(Sokoban.java:28)

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