java - Exception thrown while converting large sized jpg images -

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After

I'm trying to upload jpg upload ; Converting through servlet to the same new thumbnail After writing that file to disk, my requirment is to create a thumbnail for the same jpg file. And for this, I used the following code ... 

  // Code to upload & amp; The disk goes here when you write the image file. BufferedImage img = new BufferedImage (100, 100, BufferedImage.TYPE_INT_RGB); . Img.createGraphics () drawImage (ImageIO.read (new File (sourcefile)) getScaledInstance (100, 100, Image.SCALE_SMOOTH), 0,0, null.); ImageIO.write (IMG, "jpg", new file (thumbfile));   
 The code above  gets well for small files  but when it comes to the file of  5MB  It has copies, but it fails to convert it to thumbnails & amp; amp; Throws  
  Thread Exceptions "" http-bio-8888 "-exec-63" java.lang.OutOfMemoryError: Java heap space java.awt.image.DataBufferByte. & Lt; Init & gt; In (Unknown Source) JavakawtkimagekComponentSampleModelkcreateDataBuffer (Unknown Source java.awt.image.Raster.createWritableRaster on javax.imageio.ImageTypeSpecifier.createBufferedImage on JavaxkimageiokImageReader) (Unknown Source) (Unknown Source) . On GetDestination (Unknown Source) ComksunkimageiokpluginskjpegkJPEGImageReaderkreadInternal (Unknown Source com.sun.imageio.plugins.jpeg.JPEGImageReader.read on JavaxkimageiokImageIOkread) (unknown source) ( Unknown Source) on UploadFile.doPost at javax.imageio.ImageIO.read (Unknown Source) (UploadFile.java:67).   
 Please guide me.   
 
 
 You can increase the stack size of Java for '-Xms' and interpreter  - Using the Xmx  command line option (sets the initial hep size and maximum heap size respectively).  
 Check out this blog entry

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