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

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via Oracle Community by 807541, 1 year ago
This exception has no message.
via Oracle Community by 807541, 1 year ago
This exception has no message.
java.lang.NullPointerException:
at test5.client$1.getColumnClass(client.java:86)
at javax.swing.JTable.getColumnClass(JTable.java:1695)
at javax.swing.JTable.getCellRenderer(JTable.java:3512)
at javax.swing.JTable.getToolTipText(JTable.java:2303)
at javax.swing.ToolTipManager.mouseEntered(ToolTipManager.java:397)
at java.awt.AWTEventMulticaster.mouseEntered(AWTEventMulticaster.java:240)
at java.awt.Component.processMouseEvent(Component.java:3724)
at java.awt.Component.processEvent(Component.java:3544)
at java.awt.Container.processEvent(Container.java:1164)

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