openjdk9（jdk11/jdk17）以上版本JVM上运行webservice出错java.lang.NoClassDefFoundError: javax/xml/ws/Endpoint，把如下jar包放在tomcat/lib下面解决问题：

jaxb-impl-2.3.2.jar
jaxb-api-2.3.1.jar
jaxws-api-2.3.1.jar
javax.jws-api-1.1.jar
jaxb-core-2.3.0.1.jar
javax.xml.soap-api-1.4.0.jar
activation-1.1.1.jar

具体原因是，jdk9开始，把xml相关的功能从core中剥离出去了，所以，需要自行引用。
需要从maven引用的，参考如下依赖：

<dependency>
  <groupId>javax.xml</groupId>
  <artifactId>jaxb-impl</artifactId>
  <version>2.1</version>
</dependency>
<dependency>
  <groupId>javax.xml</groupId>
  <artifactId>jaxb-api</artifactId>
  <version>2.1</version>
</dependency>
<dependency>
  <groupId>javax.xml.ws</groupId>
  <artifactId>jaxws-api</artifactId>
  <version>2.3.1</version>
</dependency>
<dependency>
  <groupId>javax.jws</groupId>
  <artifactId>javax.jws-api</artifactId>
  <version>1.1</version>
</dependency>
<dependency>
  <groupId>com.sun.xml.bind</groupId>
  <artifactId>jaxb-core</artifactId>
  <version>2.3.0.1</version>
</dependency>
<dependency>
  <groupId>javax.xml.soap</groupId>
  <artifactId>javax.xml.soap-api</artifactId>
  <version>1.4.0</version>
</dependency>
<dependency>
  <groupId>javax.activation</groupId>
  <artifactId>activation</artifactId>
  <version>1.1.1</version>
</dependency>