mpcci gui启动提示java错误

java为1.7最新版本错误如下:Checking for existing project files ...Checking license availability ...Checking your secure shell rsa/dsa key files ...Starting the GUI ...java.lang.IllegalStateException: This function should be called while holding treeLock        at java.awt.Component.checkTreeLock(Unknown Source)        at java.awt.Container.validateTree(Unknown Source)        at mpcci.gui.base.ParamTree.openFile(Unknown Source)        at mpcci.gui.base.CodeInfo.getParamTree(Unknown Source)        at mpcci.gui.base.CodeInfo.<init>(Unknown Source)        at mpcci.gui.code.CodeOffer.getCode(Unknown Source)        at mpcci.gui.main.CCIInit.open(Unknown Source)        at mpcci.gui.main.CCIInit.<init>(Unknown Source)        at mpcci.gui.main.Mpcci.<init>(Unknown Source)        at mpcci.gui.main.Mpcci.main(Unknown Source)

请先卸载之前安装的全部java包，然后安装mpcci自带的java包。如有需要，再安装自己需要的java包。