Tomcat webapp错误-应用程序启动了线程[AWT-Windows]但未能阻止它-内存泄漏?

I didn't notice it until today during some testing locally on my pc, that Tomcat had posted an error in the log file. I'm using Tomcat 6.0.29 and Java JDK 1.6.I didn't notice it until today during some test