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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)