打开matlab时命令行里遇到错误：
Exception in thread "FileDecorationCache request queue" java.lang.OutOfMemoryError: Java heap space at java.util.Arrays.copyOf(Unknown Source) at java.lang.StringCoding.safeTrim(Unknown Source) at java.lang.StringCoding.access$100(Unknown Source) at java.lang.StringCoding$StringDecoder.decode(Unknown Source) at java.lang.StringCoding.decode(Unknown Source) at java.lang.StringCoding.decode(Unknown Source) at java.lang.String.<init>(Unknown Source) at java.lang.String.<init>(Unknown Source) at com.mathworks.mlwidgets.explorer.util.FileSystemUtils.readText(FileSystemUtils.java:449) at com.mathworks.mlwidgets.explorer.util.FileSystemUtils.readText(FileSystemUtils.java:437) at com.mathworks.mlwidgets.explorer.extensions.matlab.MFileTypeFinder.findMFileType(MFileTypeFinder.java:29) at com.mathworks.mlwidgets.explorer.extensions.matlab.MFileInfoProvider$1.run(MFileInfoProvider.java:68) at com.mathworks.mlwidgets.explorer.model.FileDecorationModel$DeferHandler.run(FileDecorationModel.java:391) at com.mathworks.mlwidgets.explorer.model.FileDecorationModel$2.get(FileDecorationModel.java:276) at com.mathworks.mlwidgets.explorer.model.FileDecorationModel$1$2.run(FileDecorationModel.java:183) at com.mathworks.mlwidgets.explorer.model.FileDecorationModel$3$1.run(FileDecorationModel.java:344) at com.mathworks.util.RequestQueue.execute(RequestQueue.java:105) at com.mathworks.util.RequestQueue.access$000(RequestQueue.java:22) at com.mathworks.util.RequestQueue$2.run(RequestQueue.java:75) at java.lang.Thread.run(Unknown Source)解决方法： 选择菜单栏中preferences中的java heap memory项，增加java heap size，重启。
