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via Oracle Community by 807551, 1 year ago
This exception has no message.
java.lang.NullPointerException: 	at undefined.LoginGUI.errorMsg(LoginGUI.java:209)	at undefined.LoginGUI.check(LoginGUI.java:177)	at undefined.LoginGUI.actionPerformed(LoginGUI.java:124)	at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)