Java Tomcat在取消部署时抛出严重警告

Tomcat版本：7.0.41（也尝试了8.0.32）
JRE:6u42
编写了一个非常简单的JAX-WS应用程序（作为测试）。当使用？wsdl？时，应用程序此时只显示wsdl文件，当给出SOAP请求时，我只返回一个字符串

@WebService
public class SOAPWithWS
{
    @WebMethod
    public String HelloTest(String sMessage)
    {
        return "Received : " + sMessage;
    }
}

当我尝试取消部署上下文时，它会给我一个警告，如下所示：

Mar 09, 2016 1:54:24 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
SEVERE: The web application [/WS] created a ThreadLocal with key of type [com.sun.xml.bind.v2.runtime.Coordinator$1] (value [com.sun.xml.bind.v2.runtime.Coordinator$1@3e26faf2]) and a value of type [java.lang.Object[]] (value [[Ljava.lang.Object;@712545be]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
Mar 09, 2016 1:54:24 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
SEVERE: The web application [/WS] created a ThreadLocal with key of type [com.sun.xml.bind.v2.ClassFactory$1] (value [com.sun.xml.bind.v2.ClassFactory$1@4605f6fa]) and a value of type [java.util.WeakHashMap] (value [{class com.sun.xml.ws.runtime.config.TubelineDefinition=java.lang.ref.WeakReference@3199bb00, class com.sun.xml.ws.runtime.config.TubeFactoryConfig=java.lang.ref.WeakReference@63c41670, class javax.xml.bind.annotation.adapters.CollapsedStringAdapter=java.lang.ref.WeakReference@5e9d463b, class com.sun.xml.ws.runtime.config.Tubelines=java.lang.ref.WeakReference@276dfc04, class javax.xml.bind.annotation.W3CDomHandler=java.lang.ref.WeakReference@25bc7ed5, class java.util.ArrayList=java.lang.ref.WeakReference@7a2ae54d, class com.sun.xml.ws.runtime.config.MetroConfig=java.lang.ref.WeakReference@163460e4, class com.sun.xml.ws.runtime.config.TubeFactoryList=java.lang.ref.WeakReference@48c5241f}]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
Mar 09, 2016 1:54:24 PM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
SEVERE: The web application [/WS] created a ThreadLocal with key of type [org.glassfish.gmbal.generic.OperationTracer$1] (value [org.glassfish.gmbal.generic.OperationTracer$1@6c6948c]) and a value of type [java.util.ArrayList] (value [[]]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.

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每次我测试时都会发生这种情况。在GlassFish服务器上不会发生同样的情况（只是尝试测试这个场景）。知道发生了什么以及如何消除此问题吗？

您的应用程序中存在内存泄漏。检查此主题，它会有所帮助

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当JAX-WS实现作为相应项目的库添加时，会显示此警告

与其将JAX-WS实现添加到项目中，不如将其添加到Tomcat本身的库列表中。 例如：在Linux上，如果Tomcat安装在/usr/java/Tomcat-7中，那么JAX-WS库必须包含在/usr/java/Tomcat-7/lib/中

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如果不想直接将库添加到Tomcat中，那么请确保在取消部署上下文时完全重新启动Tomcat。如果每次取消部署上下文时都重新启动Tomcat，则可以安全地忽略警告。

上述代码是我自己编写的。其他所有内容（其他LIB）都来自Metro 2.0的JAX-WS RI。Metro的JAX-WSRI有问题吗？是不是每个在Tomcat上使用Metro的JAX-WSRI的人都有这个问题？