Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

java.lang.NullPointerException: 	at nl.lxtreme.ols.client.signaldisplay.signalelement.SignalElement.getColorKey(SignalElement.java:687)	at nl.lxtreme.ols.client.signaldisplay.signalelement.SignalElement.setColor(SignalElement.java:525)	at nl.lxtreme.ols.client.signaldisplay.action.EditSignalElementPropertiesAction.actionPerformed(EditSignalElementPropertiesAction.java:560)	at nl.lxtreme.ols.client.signaldisplay.view.ChannelLabelsView$ChannelLabelMouseHandler.mouseClicked(ChannelLabelsView.java:83)