Crah problem , matlab not working

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shikha katariya 2022-10-3

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1816280-crah-problem-matlab-not-working

回答： Bhavana Ravirala 2023-2-20

mathworkEr.PNG

hi , every time i open matlab , it windown gets stuck on not responding and alsp gets these errors Pls find the attchmnent

pls give me solution for it, as i have already un install in re installed still facing the issue

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shikha katariya 2022-10-3

i have changed the preference but still getting this error

Warning: A Java exception occurred trying to load the LiveAppManager/getAppContainer class:

Java exception occurred:

java.lang.OutOfMemoryError: GC overhead limit exceeded

> In connector.internal.fevalMatlab

In connector.internal.fevalJSON

Warning: A Java exception occurred trying to load the

matlab/internal/editor/LiveTaskUtilities/generateScript class:

Java exception occurred:

java.lang.OutOfMemoryError: GC overhead limit exceeded

> In connector.internal.fevalMatlab

In connector.internal.fevalJSON

Warning: A Java exception occurred trying to load the

matlab/internal/editor/LiveTaskUtilities/generateSummary class:

Java exception occurred:

java.lang.OutOfMemoryError: GC overhead limit exceeded

> In connector.internal.fevalMatlab

In connector.internal.fevalJSON

Warning: A Java exception occurred trying to load the

matlab/internal/editor/LiveAppManager/CHANGED_REQUEST_CHANNEL class:

Java exception occurred:

java.lang.OutOfMemoryError: GC overhead limit exceeded

> In connector.internal.fevalMatlab

In connector.internal.fevalJSON

Warning: A Java exception occurred trying to load the LiveTaskUtilities/reset class:

Java exception occurred:

java.lang.OutOfMemoryError: GC overhead limit exceeded

> In connector.internal.fevalMatlab

In connector.internal.fevalJSON

Warning: A Java exception occurred trying to load the matlab/internal/editor/LiveAppManager/getFigure

class:

Java exception occurred:

java.lang.OutOfMemoryError: GC overhead limit exceeded

> In connector.internal.fevalMatlab

In connector.internal.fevalJSON

Exception in thread "AWT-EventQueue-0": java.lang.OutOfMemoryError: GC overhead limit exceeded

at com.mathworks.widgets.BusyAffordance.paintEachDot(BusyAffordance.java:413)

at com.mathworks.widgets.BusyAffordance.paintDots(BusyAffordance.java:383)

at com.mathworks.widgets.BusyAffordance.paintAffordance(BusyAffordance.java:366)

at com.mathworks.widgets.BusyAffordance$1.paintComponent(BusyAffordance.java:206)

at javax.swing.JComponent.paint(JComponent.java:1056)

at javax.swing.JComponent.paintChildren(JComponent.java:889)

at javax.swing.JComponent.paint(JComponent.java:1065)

at javax.swing.JComponent.paintToOffscreen(JComponent.java:5210)

at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(RepaintManager.java:1579)

at javax.swing.RepaintManager$PaintManager.paint(RepaintManager.java:1502)

at javax.swing.RepaintManager.paint(RepaintManager.java:1272)

at javax.swing.JComponent._paintImmediately(JComponent.java:5158)

at javax.swing.JComponent.paintImmediately(JComponent.java:4969)

at javax.swing.RepaintManager$4.run(RepaintManager.java:831)

at javax.swing.RepaintManager$4.run(RepaintManager.java:814)

at java.security.AccessController.doPrivileged(Native Method)

at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)

at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:814)

at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:789)

at javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:738)

at javax.swing.RepaintManager.access$1200(RepaintManager.java:64)

at javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1732)

at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)

at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)

at java.awt.EventQueue.access$500(EventQueue.java:97)

at java.awt.EventQueue$3.run(EventQueue.java:709)

at java.awt.EventQueue$3.run(EventQueue.java:703)

at java.security.AccessController.doPrivileged(Native Method)

at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)

at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)

at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205)

at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)

Exception in thread "AWT-EventQueue-0": java.lang.OutOfMemoryError: GC overhead limit exceeded

Exception in thread "Explorer NavigationContext request queue": java.lang.OutOfMemoryError: GC overhead limit exceeded

Exception in thread "AWT-EventQueue-0": java.lang.OutOfMemoryError: GC overhead limit exceeded

Exception in thread "AWT-EventQueue-0": java.lang.OutOfMemoryError: GC overhead limit exceeded

>>

Walter Roberson 2022-10-3

You might need to increase the Java Heap Memory https://www.mathworks.com/help/matlab/matlab_external/java-heap-memory-preferences.html -- but if you are receiving the error as soon as you open MATLAB then changing the heap size might not help.

Do you happen to have a startup.m in your path that might be running some function ?

shikha katariya 2022-10-3

no i cannot find any startup.m file in path

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回答（1 个）

Bhavana Ravirala 2023-2-20

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1816280-crah-problem-matlab-not-working#answer_1175445

在 MATLAB Online 中打开

Hi Shikha,

This error can occur when the Java Garbage Collector has exceeded its overhead limit.

You can eliminate this error by following the workarounds mentioned below:

1. To disable the overhead limit, add the following line to the java.opts file:

-XX:-UseGCOverheadLimit

If a java.opts file already exists on your MATLAB path, add the above-mentioned line to this file. If the file does not currently exist on your machine, please create a text file called java.opts and place this file in the location:

$MATLABROOT/bin/$ARCH

where $MATLABROOT is the MATLAB root directory obtained by typing the following at the MATLAB Command Prompt:

matlabroot

and $ARCH is the output of typing the following at the MATLAB Command Prompt:

computer('arch')

2. One may force more Java garbage collection from the command line as well:-

r = java.lang.Runtime.getRuntime();
r.gc;
r.gc;
r.gc;

Running r.gc only once may not activate the object method and hence may need to be used more number of times.

Hope this helps!!

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