我的ace实例启动错误，但是本地测试都是好的。

log4j 配置是标准的

This is the configuring for logging displayed in the Application Server

log4j.rootLogger=INFO,aceAppender

ace4j log appender

log4j.appender.aceAppender=com.alibaba.appengine.api.log.appender.LogAppender
log4j.appender.aceAppender.layout=org.apache.log4j.PatternLayout
log4j.appender.aceAppender.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS}%-5p[%-c]%m%n
log4j.appender.aceAppender.Threshold=INFO

错误信息

UrlRewriteValve Start init url rewrite filter.
UrlRewriteValve There is not /WEB-INF/ace-meta.xml, Url rewrite will not work.
ContainerBase A child container failed during start
java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]]
at java.util.concurrent.FutureTask.report(FutureTask.java:122)
at java.util.concurrent.FutureTask.get(FutureTask.java:188)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123)
at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:799)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
... 6 more
Caused by: java.lang.ExceptionInInitializerError
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at java.lang.Class.newInstance(Class.java:374)
at org.apache.tomcat.websocket.server.WsSci.onStartup(WsSci.java:95)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5456)
at com.aliyun.ace4j.container.tomcat7.AceContext.startInternal(AceContext.java:45)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
... 6 more
Caused by: org.apache.logging.log4j.core.config.ConfigurationException: No appenders are available for AsyncAppender Async
at org.apache.logging.log4j.core.appender.AsyncAppender.start(AsyncAppender.java:105)
at org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:157)
at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:364)
at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:422)
at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:146)
at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:85)
at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:37)
at org.apache.logging.log4j.LogManager.getContext(LogManager.java:269)
at org.apache.logging.slf4j.Log4jLoggerFactory$PrivateManager.getContext(Log4jLoggerFactory.java:98)
at org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:84)
at org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:44)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:270)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:281)
at ace.demo.websocket.DemoWebsocketConfig.(DemoWebsocketConfig.java:20)
... 15 more