MATLAB: How to avoid a Java out-of-memory error when creating GUI using GUIDE

guiguidejavaout of memory

[EDIT: 20110621 17:15 CDT – reformat – WDR]
Exception in thread "Timer-1" java.lang.OutOfMemoryError: Java heap space
  at java.lang.String.toLowerCase(Unknown Source)
  at java.io.Win32FileSystem.hashCode(Unknown Source)
  at java.io.File.hashCode(Unknown Source)
  at java.util.HashMap.get(Unknown Source)
  at com.mathworks.mlwidgets.explorer.control.DocumentContextImpl.getDocumentChanges(DocumentContextImpl.java:462)
  at com.mathworks.mlwidgets.explorer.control.DocumentContextImpl.refreshContents(DocumentContextImpl.java:569)
  at com.mathworks.mlwidgets.explorer.control.RefreshDaemon$2.run(RefreshDaemon.java:104)
  at java.util.TimerThread.mainLoop(Unknown Source)
  at java.util.TimerThread.run(Unknown Source)
Exception in thread "AWT-EventQueue-0" java.lang.OutOfMemoryError: Java heap space
  at java.lang.AbstractStringBuilder.<init>(Unknown Source)
  at java.lang.StringBuilder.<init>(Unknown Source)
  at javax.swing.plaf.basic.BasicTextUI.getInputMap(Unknown Source)
  at javax.swing.plaf.basic.BasicTextUI.installKeyboardActions(Unknown Source)
  at javax.swing.plaf.basic.BasicTextUI.installUI(Unknown Source)
  at javax.swing.JComponent.setUI(Unknown Source)
  at javax.swing.text.JTextComponent.setUI(Unknown Source)
  at javax.swing.text.JTextComponent.updateUI(Unknown Source)
  at com.mathworks.hg.peer.EditTextPeer$hgTextField.updateUI(EditTextPeer.java:559)
  at com.mathworks.hg.peer.EditTextPeer$hgTextField.setText(EditTextPeer.java:571)
  at com.mathworks.hg.peer.EditTextPeer.doSetString(EditTextPeer.java:126)
  at com.mathworks.hg.peer.AbstractUicontrolPeer$11.run(AbstractUicontrolPeer.java:552)
  at com.mathworks.hg.util.HGPeerQueue$HGPeerRunnablesRunner.runit(HGPeerQueue.java:228)
  at com.mathworks.hg.util.HGPeerQueue$HGPeerRunnablesRunner.runNotThese(HGPeerQueue.java:260)
  at com.mathworks.hg.util.HGPeerQueue$HGPeerRunnablesRunner.run(HGPeerQueue.java:276)
  at java.awt.event.InvocationEvent.dispatch(Unknown Source)
  at java.awt.EventQueue.dispatchEvent(Unknown Source)
  at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
  at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
  at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
  at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
  at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
  at java.awt.EventDispatchThread.run(Unknown Source

Best Answer

Hi Maria,
please try to increase your java heap space from MATLAB. You can find this option under File -> Preferences -> General -> Java Heap Memory. Please make a restart of MATLAB after changing this value.
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