JAVAlang.内存不足错误

Question

我们是cbse 12年级的ip学生。。 我们面临着这个例外，我们不知道如何纠正这个例外

run:
Exception in thread "Image Fetcher 1" java.lang.OutOfMemoryError: Java heap space
        at java.awt.image.DataBufferInt.<init>(DataBufferInt.java:41)
        at java.awt.image.Raster.createPackedRaster(Raster.java:458)
        at java.awt.image.DirectColorModel.createCompatibleWritableRaster(DirectColorModel.java:1015)
        at sun.awt.image.ImageRepresentation.createBufferedImage(ImageRepresentation.java:230)
        at sun.awt.image.ImageRepresentation.setPixels(ImageRepresentation.java:484)
        at sun.awt.image.ImageDecoder.setPixels(ImageDecoder.java:120)
        at sun.awt.image.JPEGImageDecoder.sendPixels(JPEGImageDecoder.java:97)
        at sun.awt.image.JPEGImageDecoder.readImage(Native Method)
        at sun.awt.image.JPEGImageDecoder.produceImage(JPEGImageDecoder.java:119)
        at sun.awt.image.InputStreamImageSource.doFetch(InputStreamImageSource.java:246)
        at sun.awt.image.ImageFetcher.fetchloop(ImageFetcher.java:172)
        at sun.awt.image.ImageFetcher.run(ImageFetcher.java:136)
Exception in thread "AWT-EventQueue-0" java.lang.OutOfMemoryError: Java heap space
        at java.awt.image.DataBufferInt.<init>(DataBufferInt.java:41)
        at java.awt.image.Raster.createPackedRaster(Raster.java:458)
        at java.awt.image.DirectColorModel.createCompatibleWritableRaster(DirectColorModel.java:1015)
        at sun.awt.image.SunVolatileImage.getBackupImage(SunVolatileImage.java:225)
        at sun.awt.image.VolatileSurfaceManager.getBackupSurface(VolatileSurfaceManager.java:252)
        at sun.awt.image.VolatileSurfaceManager.initialize(VolatileSurfaceManager.java:108)
        at sun.awt.image.SunVolatileImage.<init>(SunVolatileImage.java:72)
        at sun.awt.image.SunVolatileImage.<init>(SunVolatileImage.java:82)
        at sun.awt.image.SunVolatileImage.<init>(SunVolatileImage.java:93)
        at sun.awt.image.SunVolatileImage.<init>(SunVolatileImage.java:87)
        at sun.awt.windows.WComponentPeer.createVolatileImage(WComponentPeer.java:604)
        at java.awt.Component.createVolatileImage(Component.java:3316)
        at java.awt.Component$BltBufferStrategy.createBackBuffers(Component.java:4038)
        at java.awt.Component$BltBufferStrategy.<init>(Component.java:3983)
        at java.awt.Component$BltSubRegionBufferStrategy.<init>(Component.java:4236)
        at java.awt.Component.createBufferStrategy(Component.java:3567)
        at java.awt.Window.createBufferStrategy(Window.java:3012)
        at javax.swing.BufferStrategyPaintManager$BufferInfo.createBufferStrategy(BufferStrategyPaintManager.java:844)
        at javax.swing.BufferStrategyPaintManager$BufferInfo.createBufferStrategy(BufferStrategyPaintManager.java:795)
        at javax.swing.BufferStrategyPaintManager$BufferInfo.getBufferStrategy(BufferStrategyPaintManager.java:728)
        at javax.swing.BufferStrategyPaintManager.prepare(BufferStrategyPaintManager.java:505)
        at javax.swing.BufferStrategyPaintManager.paint(BufferStrategyPaintManager.java:263)
        at javax.swing.RepaintManager.paint(RepaintManager.java:1217)
        at javax.swing.JComponent.paint(JComponent.java:1013)
        at java.awt.GraphicsCallback$PaintCallback.run(GraphicsCallback.java:21)
        at sun.awt.SunGraphicsCallback.runOneComponent(SunGraphicsCallback.java:60)
        at sun.awt.SunGraphicsCallback.runComponents(SunGraphicsCallback.java:97)
        at java.awt.Container.paint(Container.java:1780)
        at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:814)
        at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:714)
        at javax.swing.RepaintManager.seqPaintDirtyRegions(RepaintManager.java:694)
        at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQueueUtilities.java:128)
Exception in thread "AWT-EventQueue-0" java.lang.OutOfMemoryError: Java heap space
        at java.awt.image.DataBufferInt.<init>(DataBufferInt.java:41)
        at java.awt.image.Raster.createPackedRaster(Raster.java:458)
        at java.awt.image.DirectColorModel.createCompatibleWritableRaster(DirectColorModel.java:1015)
        at sun.awt.image.SunVolatileImage.getBackupImage(SunVolatileImage.java:225)
        at sun.awt.image.VolatileSurfaceManager.getBackupSurface(VolatileSurfaceManager.java:252)
        at sun.awt.image.VolatileSurfaceManager.initialize(VolatileSurfaceManager.java:108)
        at sun.awt.image.SunVolatileImage.<init>(SunVolatileImage.java:72)
        at sun.awt.image.SunVolatileImage.<init>(SunVolatileImage.java:82)
        at sun.awt.image.SunVolatileImage.<init>(SunVolatileImage.java:93)
        at sun.awt.image.SunVolatileImage.<init>(SunVolatileImage.java:87)
        at sun.awt.windows.WComponentPeer.createVolatileImage(WComponentPeer.java:604)
        at java.awt.Component.createVolatileImage(Component.java:3316)
        at java.awt.Component$BltBufferStrategy.createBackBuffers(Component.java:4038)
        at java.awt.Component$BltBufferStrategy.<init>(Component.java:3983)
        at java.awt.Component$BltSubRegionBufferStrategy.<init>(Component.java:4236)
        at java.awt.Component.createBufferStrategy(Component.java:3567)
        at java.awt.Window.createBufferStrategy(Window.java:3012)
        at javax.swing.BufferStrategyPaintManager$BufferInfo.createBufferStrategy(BufferStrategyPaintManager.java:844)
        at javax.swing.BufferStrategyPaintManager$BufferInfo.createBufferStrategy(BufferStrategyPaintManager.java:795)
        at javax.swing.BufferStrategyPaintManager$BufferInfo.getBufferStrategy(BufferStrategyPaintManager.java:728)
        at javax.swing.BufferStrategyPaintManager.prepare(BufferStrategyPaintManager.java:505)
        at javax.swing.BufferStrategyPaintManager.paint(BufferStrategyPaintManager.java:263)
        at javax.swing.RepaintManager.paint(RepaintManager.java:1217)
        at javax.swing.JComponent._paintImmediately(JComponent.java:5070)
        at javax.swing.JComponent.paintImmediately(JComponent.java:4880)
        at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:803)
        at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:714)
        at javax.swing.RepaintManager.seqPaintDirtyRegions(RepaintManager.java:694)
        at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQueueUtilities.java:128)
        at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
Exception in thread "AWT-EventQueue-0" java.lang.OutOfMemoryError: Java heap space
        at java.awt.image.DataBufferInt.<init>(DataBufferInt.java:41)
        at java.awt.image.Raster.createPackedRaster(Raster.java:458)
        at java.awt.image.DirectColorModel.createCompatibleWritableRaster(DirectColorModel.java:1015)
        at sun.awt.image.SunVolatileImage.getBackupImage(SunVolatileImage.java:225)
        at sun.awt.image.VolatileSurfaceManager.getBackupSurface(VolatileSurfaceManager.java:252)
        at sun.awt.image.VolatileSurfaceManager.initialize(VolatileSurfaceManager.java:108)
        at sun.awt.image.SunVolatileImage.<init>(SunVolatileImage.java:72)
        at sun.awt.image.SunVolatileImage.<init>(SunVolatileImage.java:82)
        at sun.awt.image.SunVolatileImage.<init>(SunVolatileImage.java:93)
        at sun.awt.image.SunVolatileImage.<init>(SunVolatileImage.java:87)
        at sun.awt.windows.WComponentPeer.createVolatileImage(WComponentPeer.java:604)
        at java.awt.Component.createVolatileImage(Component.java:3316)
        at java.awt.Component$BltBufferStrategy.createBackBuffers(Component.java:4038)
        at java.awt.Component$BltBufferStrategy.<init>(Component.java:3983)
        at java.awt.Component$BltSubRegionBufferStrategy.<init>(Component.java:4236)
        at java.awt.Component.createBufferStrategy(Component.java:3567)
        at java.awt.Window.createBufferStrategy(Window.java:3012)
        at javax.swing.BufferStrategyPaintManager$BufferInfo.createBufferStrategy(BufferStrategyPaintManager.java:844)
        at javax.swing.BufferStrategyPaintManager$BufferInfo.createBufferStrategy(BufferStrategyPaintManager.java:795)
        at javax.swing.BufferStrategyPaintManager$BufferInfo.getBufferStrategy(BufferStrategyPaintManager.java:728)
        at javax.swing.BufferStrategyPaintManager.prepare(BufferStrategyPaintManager.java:505)
        at javax.swing.BufferStrategyPaintManager.paint(BufferStrategyPaintManager.java:263)
        at javax.swing.RepaintManager.paint(RepaintManager.java:1217)
        at javax.swing.JComponent._paintImmediately(JComponent.java:5070)
        at javax.swing.JComponent.paintImmediately(JComponent.java:4880)
        at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:803)
        at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:714)
        at javax.swing.RepaintManager.seqPaintDirtyRegions(RepaintManager.java:694)
        at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQueueUtilities.java:128)
        at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
Exception in thread "AWT-EventQueue-0" java.lang.OutOfMemoryError: Java heap space
Exception in thread "AWT-EventQueue-0" java.lang.OutOfMemoryError: Java heap space
BUILD SUCCESSFUL (total time: 25 seconds)

Answer 1

默认情况下，如果不修改JVM启动参数，则有128m的堆空间

程序分配的内存大于128m

您可以增加堆空间限制：

java -Xms<initial heap size> -Xmx<maximum heap size>

Answer 2

可以使用以下选项设置堆大小：

  -Xms32m -Xmx128m

请在此处查看VM选项：

http://www.oracle.com/technetwork/java/javase/tech/vmoptions-jsp-140102.html

但我建议你检查一下你的堆里都是什么。您可以使用以下分析工具完成此操作：

• JProfiler
• VisualVM