如何解决MATLAB启动sun.io.MalformedInputException异常

把MATLAB7.0装好后启动，竟然冒出这么一大堆的异常错误？？

sun.io.MalformedInputException
at sun.io.ByteToCharGB18030.convert(Unknown Source)
at sun.nio.cs.StreamDecoder$ConverterSD.convertInto(Unknown Source)
at sun.nio.cs.StreamDecoder$ConverterSD.implRead(Unknown Source)
at sun.nio.cs.StreamDecoder.read(Unknown Source)
at java.io.InputStreamReader.read(Unknown Source)
at org.apache.xerces.impl.XMLEntityManager$EntityScanner.load(XMLEntityManager.java:3186)
at org.apache.xerces.impl.XMLEntityManager$EntityScanner.skipString(XMLEntityManager.java:2948)
at org.apache.xerces.impl.XMLDocumentScannerImpl$XMLDeclDispatcher.dispatch(XMLDocumentScannerImpl.java:563)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:333)
at org.apache.xerces.parsers.StandardParserConfiguration.parse(StandardParserConfiguration.java:529)
at org.apache.xerces.parsers.StandardParserConfiguration.parse(StandardParserConfiguration.java:585)
at org.apache.xerces.parsers.XMLParser.parse(XMLParser.java:147)
at org.apache.xerces.parsers.DOMParser.parse(DOMParser.java:221)
at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:201)
at com.mathworks.mlwidgets.util.productinfo.ProductInfoUtils.getDomDocument(ProductInfoUtils.java:481)
at com.mathworks.mlwidgets.util.productinfo.ProductInfoUtils.parseFile(ProductInfoUtils.java:403)
at com.mathworks.mlwidgets.util.productinfo.ProductInfoUtils.parseAllFiles(ProductInfoUtils.java:460)
at com.mathworks.mlwidgets.util.productinfo.ProductInfoUtils.pathChanged(ProductInfoUtils.java:342)
at com.mathworks.mlwidgets.util.productinfo.ProductInfoUtils.<init>(ProductInfoUtils.java:288)
at com.mathworks.mlwidgets.util.productinfo.ProductInfoUtils.getAllProductsInfo(ProductInfoUtils.java:966)
at com.mathworks.mlwidgets.util.productinfo.ProductInfoUtils.<clinit>(ProductInfoUtils.java:274)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at com.mathworks.mde.desk.StartupClassLoader$LoadInfo.<init>(StartupClassLoader.java:76)
at com.mathworks.mde.desk.StartupClassLoader.addLoadInfo(StartupClassLoader.java:210)
at com.mathworks.mde.desk.StartupClassLoader.createLoadInfos(StartupClassLoader.java:186)
at com.mathworks.mde.desk.StartupClassLoader.access$400(StartupClassLoader.java:24)
at com.mathworks.mde.desk.StartupClassLoader$2.run(StartupClassLoader.java:138)
at java.util.TimerThread.mainLoop(Unknown Source)
at java.util.TimerThread.run(Unknown Source)
解决方法：

方法1:

假设你安装到D盘，那么找到d:\matlab7\toolbox\ccslink\ccslink\info.xml 这个文件，用写字板打开这个文件 ，找到有一行这样的<name>Link for Code Composer Studio?/name>，把这句的/name>改成</name>,再保存一下这文件。 这样修改后，应当不会有问题了，我的就是这样解决的。

方法2:

在命令窗口执行以下语句试试:com.mathworks.services.Prefs.setStringPref('HelpSelectedProducts','MATLAB');

官方参考：

Technical Solutions

Why do I receive Java lang errors after starting MATLAB R14?

Date Last Modified: 25 Feb 2008

Solution ID:1-OVWJ9

Product:MATLAB

Reported in Release:R14

Platform:All Platforms

Operating System:All OS

Subject:Why do I receive Java lang errors after starting MATLAB R14?

Problem Description:
The following error messages appear in the MATLAB Command Window after MATLAB is started:

java.lang.ExceptionInInitializerError
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at com.mathworks.mlservices.MLHelpServices.getDocRoot(MLHelpServices.java:372)
at com.mathworks.mlwidgets.util.productinfo.ProductInfoUtils.getAbsolutePath(ProductInfoUtils.java:847)
at com.mathworks.mlwidgets.util.productinfo.ProductInfoUtils.parseFile(ProductInfoUtils.java:420)
at com.mathworks.mlwidgets.util.productinfo.ProductInfoUtils.parseAllFiles(ProductInfoUtils.java:460)
at com.mathworks.mlwidgets.util.productinfo.ProductInfoUtils.pathChanged(ProductInfoUtils.java:342)
at com.mathworks.mlwidgets.util.productinfo.ProductInfoUtils.<init>(ProductInfoUtils.java:288) ...

This behavior was seen on Windows 2000 and XP.

Another similar error message on Linux is as follows:

sun.io.MalformedInputException
at sun.io.ByteToCharGB18030.convert(Unknown Source)
at sun.nio.cs.StreamDecoder$ConverterSD.convertInto(Unknown Source)
at sun.nio.cs.StreamDecoder$ConverterSD.implRead(Unknown Source)
at sun.nio.cs.StreamDecoder.read(Unknown Source)
at java.io.InputStreamReader.read(Unknown Source)
at org.apache.xerces.impl.XMLEntityManager$EntityScanner.load(XMLEntityManager.java:3186)
at org.apache.xerces.impl.XMLEntityManager$EntityScanner.skipString(XMLEntityManager.java:2948)
at org.apache.xerces.impl.XMLDocumentScannerImpl$XMLDeclDispatcher.dispatch(XMLDocumentScannerImpl.java:563) ...

Solution:

This bug has been fixed for Release 14 SP1 (R14SP1). For previous releases, please read below for any possible workarounds:

This error is ocurring because of a corrupt preference setting in the MATLAB preferences file. To fix this problem, start MATLAB and run the following statement in the Command Window, after the exceptions display:

com.mathworks.services.Prefs.setStringPref('HelpSelectedProducts','MATLAB');

After running the statement, quit MATLAB and then restart it. The problem should be fixed.

参考信息：

http://www.mathworks.com/support/solutions/data/1-OVWJ9.html?solution=1-
http://www.chinavib.com/forum/viewthread.php?tid=40470&extra=page%3D1
http://tieba.baidu.com/f?ct=335675392&tn=baiduPostBrowser&sc=3642103521&z=355500850&pn=0&rn=50&lm=0&word=matlab