Error waiting for multi-thread deployment of directories to completehostConfig.deployWar

在xp下启动Tomcat，报错如下：

严重: Error waiting for multi-thread deployment of WAR files to complete
java.util.concurrent.ExecutionException: java.lang.OutOfMemoryError: Java heap space

修改tomcat6目录下bin的catalina.bat的虚拟内存，set JAVA_OPTS=-Xms64m -Xmx256m，无效果！