几个月前，我在RESTful架构之后开发了一个服务器代码。服务器代码托管在云服务上，直到昨天才按预期工作。我打开Eclipse IDE对服务器代码进行了一些更改（只添加了几个java类），并且我在云端和本地Tomcat服务器上自动更新了我的服务器代码。
我突然发现我的端点不起作用，我得到以下异常：
javax.servlet.ServletException: Resource configuration class
org.abc.def.gh.MyApplication could not be loaded.
org.glassfish.jersey.servlet.WebComponent.createResourceConfig(WebComponent.java:502)
org.glassfish.jersey.servlet.WebComponent.<init(WebComponent.java:324)
org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:170)
org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:358)
javax.servlet.GenericServlet.init(GenericServlet.java:160)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
java.lang.Thread.run(Unknown Source)
root cause java.lang.ClassNotFoundException:
org.abc.def.gh.MyApplication
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1702)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1547)
java.lang.Class.forName0(Native Method)
java.lang.Class.forName(Unknown Source)
org.glassfish.jersey.internal.util.ReflectionHelper$7.run(ReflectionHelper.java:404)
org.glassfish.jersey.internal.util.ReflectionHelper$7.run(ReflectionHelper.java:394)
java.security.AccessController.doPrivileged(Native Method)
org.glassfish.jersey.servlet.WebComponent.createResourceConfig(WebComponent.java:489)
org.glassfish.jersey.servlet.WebComponent.<init(WebComponent.java:324)
org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:170)
org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:358)
javax.servlet.GenericServlet.init(GenericServlet.java:160)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
java.lang.Thread.run(Unknown Source)
，MyApplication在web.xml中以下列方式注册：
<init-param>
<param-name>javax.ws.rs.Application</param-name>
<param-value>org.abc.def.gh.MyApplication</param-value>
</init-param>
我没有对web.xml和pom.xml文件进行任何更改。我发现很难分析这个突发问题的原因。
感谢您的帮助！ 感谢。