Java使用openjdk在Ubuntu上编译，然后在带有sun java的windows上运行会出错

I have been developing a Java program in Netbeans/Ubuntu 12.04 using OpenJdk. I have got this program to run successfully using the .jar in Linux, but when I copy the .jar to my Windows 7 virtual machine I get the following error;I have been developing a Java program in Netbea