java - Should I be worried about this error? -


this question has answer here:

i got error game still works. should worried? can provide coding cause error if needed.

error:

exception in thread "awt-eventqueue-0" java.lang.nullpointerexception         @ main.gamepanel.paintcomponent(gamepanel.java:77)         @ javax.swing.jcomponent.paint(unknown source)         @ javax.swing.jcomponent.paintchildren(unknown source)         @ javax.swing.jcomponent.paint(unknown source)         @ javax.swing.jcomponent.paintchildren(unknown source)         @ javax.swing.jcomponent.paint(unknown source)         @ javax.swing.jlayeredpane.paint(unknown source)         @ javax.swing.jcomponent.paintchildren(unknown source)         @ javax.swing.jcomponent.painttooffscreen(unknown source)         @ javax.swing.repaintmanager$paintmanager.paintdoublebuffered(unknown source)         @ javax.swing.repaintmanager$paintmanager.paint(unknown source)         @ javax.swing.repaintmanager.paint(unknown source)         @ javax.swing.jcomponent.paint(unknown source)         @ java.awt.graphicscallback$paintcallback.run(unknown source)         @ sun.awt.sungraphicscallback.runonecomponent(unknown source)         @ sun.awt.sungraphicscallback.runcomponents(unknown source)         @ java.awt.container.paint(unknown source)         @ java.awt.window.paint(unknown source)         @ javax.swing.repaintmanager$4.run(unknown source)         @ javax.swing.repaintmanager$4.run(unknown source)         @ java.security.accesscontroller.doprivileged(native method)         @ java.security.protectiondomain$1.dointersectionprivilege(unknown source)         @ javax.swing.repaintmanager.paintdirtyregions(unknown source)         @ javax.swing.repaintmanager.paintdirtyregions(unknown source)         @ javax.swing.repaintmanager.prepaintdirtyregions(unknown source)         @ javax.swing.repaintmanager.access$1300(unknown source)         @ javax.swing.repaintmanager$processingrunnable.run(unknown source)         @ java.awt.event.invocationevent.dispatch(unknown source)         @ java.awt.eventqueue.dispatcheventimpl(unknown source)         @ java.awt.eventqueue.access$500(unknown source)         @ java.awt.eventqueue$3.run(unknown source)         @ java.awt.eventqueue$3.run(unknown source)         @ java.security.accesscontroller.doprivileged(native method)         @ java.security.protectiondomain$1.dointersectionprivilege(unknown source)         @ java.awt.eventqueue.dispatchevent(unknown source)         @ java.awt.eventdispatchthread.pumponeeventforfilters(unknown source)         @ java.awt.eventdispatchthread.pumpeventsforfilter(unknown source)         @ java.awt.eventdispatchthread.pumpeventsforhierarchy(unknown source)         @ java.awt.eventdispatchthread.pumpevents(unknown source)         @ java.awt.eventdispatchthread.pumpevents(unknown source)         @ java.awt.eventdispatchthread.run(unknown source)

of course, should worried. null pointer means variable supposed contain empty , used. in paintcomponent function might reflect on , feel of application.


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