-server
 -Xms512m
 -Xmx1250m
 -XX:MaxPermSize=1250m
 -XX:ReservedCodeCacheSize=240m
 -XX:+UseConcMarkSweepGC
 -XX:SoftRefLRUPolicyMSPerMB=50
 -ea
 -Dsun.io.useCanonCaches=false
 -Djava.net.preferIPv4Stack=true
 -XX:+HeapDumpOnOutOfMemoryError
 -XX:-OmitStackTraceInFastThrow=========
内存设置改成
-Xmx1250m