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

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via Oracle Community by 807577, 1 year ago
This exception has no message.
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This exception has no message.
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This exception has no message.
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java.lang.NullPointerException:
at javax.swing.ImageIcon.(ImageIcon.java:138)
at mjava.TestTree3.(TestTree3.java:39)
at mjava.TestTree3.main(TestTree3.java:82)

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