Help function and 'doc help' does not load on Intel Mac with Matlab R2007a
MechEng
My problem is that I can not use the help function in Matlab. When I
try to activate it, it does not load completly and the help browser
does not respond to anything. Using the 'doc help' function does not
work either, it only produces a lot of error messages. I have tried
updating my version of X11 and I have also installed the newest
release of Java VM. Does anyone know how to work around this problem.
Thanks
I have the following setup:
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MATLAB Version 7.4.0.287 (R2007a)
MATLAB License Number: XXXXXX
Operating System: Mac OS X Version: 10.4.10 Build: XXXXXX
Java VM Version: Java 1.5.0_07 with "Apple Computer, Inc." Java
HotSpot(TM) Client VM mixed mode
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Everytime I start up I get the following error message:
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java.lang.IllegalArgumentException: http://java.sun.com/xml/jaxp/properties/schemaSource
at
org.apache.xerces.jaxp.DocumentBuilderFactoryImpl.setAttribute(DocumentBuilderFactoryImpl.java:
118)
at com.mathworks.xml.XMLValidator.validateFile(XMLValidator.java:54)
at
com.mathworks.mlwidgets.util.productinfo.Product.getItems(Product.java:
324)
at
com.mathworks.mlwidgets.util.productinfo.ProductInfoUtils.pathChanged(ProductInfoUtils.java:
221)
at
com.mathworks.mlwidgets.util.productinfo.ProductInfoUtils.<init>(ProductInfoUtils.java:
64)
at
com.mathworks.mlwidgets.util.productinfo.ProductInfoUtils.getAllProductsInfo(ProductInfoUtils.java:
835)
at
com.mathworks.mlwidgets.util.productinfo.ProductInfoUtils.<clinit>(ProductInfoUtils.java:
50)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:164)
at
com.mathworks.mde.desk.StartupClassLoader.callClassForName(StartupClassLoader.java:
304)
at com.mathworks.mde.desk.StartupClassLoader.access
$000(StartupClassLoader.java:27)
at com.mathworks.mde.desk.StartupClassLoader
$LoadInfo.<init>(StartupClassLoader.java:80)
at
com.mathworks.mde.desk.StartupClassLoader.addLoadInfo(StartupClassLoader.java:
219)
at
com.mathworks.mde.desk.StartupClassLoader.createLoadInfos(StartupClassLoader.java:
195)
at com.mathworks.mde.desk.StartupClassLoader.access
$500(StartupClassLoader.java:27)
at com.mathworks.mde.desk.StartupClassLoader
$1$1.run(StartupClassLoader.java:147)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
Exception in thread "Timer-2" java.lang.ExceptionInInitializerError
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:164)
at
com.mathworks.mde.desk.StartupClassLoader.callClassForName(StartupClassLoader.java:
304)
at com.mathworks.mde.desk.StartupClassLoader.access
$000(StartupClassLoader.java:27)
at com.mathworks.mde.desk.StartupClassLoader
$LoadInfo.<init>(StartupClassLoader.java:80)
at
com.mathworks.mde.desk.StartupClassLoader.addLoadInfo(StartupClassLoader.java:
219)
at
com.mathworks.mde.desk.StartupClassLoader.createLoadInfos(StartupClassLoader.java:
195)
at com.mathworks.mde.desk.StartupClassLoader.access
$500(StartupClassLoader.java:27)
at com.mathworks.mde.desk.StartupClassLoader
$1$1.run(StartupClassLoader.java:147)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
Caused by: java.lang.NullPointerException
at
com.mathworks.mlwidgets.util.productinfo.Product.getItems(Product.java:
331)
at
com.mathworks.mlwidgets.util.productinfo.ProductInfoUtils.pathChanged(ProductInfoUtils.java:
221)
at
com.mathworks.mlwidgets.util.productinfo.ProductInfoUtils.<init>(ProductInfoUtils.java:
64)
at
com.mathworks.mlwidgets.util.productinfo.ProductInfoUtils.getAllProductsInfo(ProductInfoUtils.java:
835)
at
com.mathworks.mlwidgets.util.productinfo.ProductInfoUtils.<clinit>(ProductInfoUtils.java:
50)
... 11 more
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Trying the 'doc help' command produces the output:
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doc help
??? Java exception occurred:
java.lang.NoClassDefFoundError
at
com.mathworks.mlwidgets.help.HelpPanel.showProductPage(HelpPanel.java:
214)
at
com.mathworks.mde.help.HelpBrowser.showProductPage(HelpBrowser.java:
584)
at
com.mathworks.mde.help.HelpBrowserBridge.showProductPage(HelpBrowserBridge.java:
23)
at
com.mathworks.mlservices.MLHelpServices.showProductPage(MLHelpServices.java:
102)
Error in ==> doc at 130
result =
com.mathworks.mlservices.MLHelpServices.showProductPage(lower(topic));
Exception in thread "Thread-9" java.lang.NoClassDefFoundError
at
com.mathworks.mlwidgets.help.HelpInfo.resetInstalledProducts(HelpInfo.java:
150)
at
com.mathworks.mlwidgets.help.HelpInfo.getInstalledProducts(HelpInfo.java:
762)
at com.mathworks.mlwidgets.help.HelpInfo.<clinit>(HelpInfo.java:45)
at com.mathworks.mde.help.HelpNavigator.populate(HelpNavigator.java:
167)
at com.mathworks.mde.help.HelpBrowser
$PopulateNavigatorThread.run(HelpBrowser.java:222)
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