NoClassDefFoundError: jakarta/servlet/ServletInputStream

By mkyong | Updated: May 27, 2021

Viewed: 20,774 (+194 pv/w)

Tags: java error servlet 5 servlet api

Using Jersey 3x + Jetty to develop endpoints, but hits the following error during application startup.

Exception in thread "main" java.lang.NoClassDefFoundError: jakarta/servlet/ServletInputStream
  at org.glassfish.jersey.jetty.JettyHttpContainerProvider.createContainer(JettyHttpContainerProvider.java:43)
  at org.glassfish.jersey.server.ContainerFactory.createContainer(ContainerFactory.java:58)
  at org.glassfish.jersey.jetty.JettyHttpContainerFactory.createServer(JettyHttpContainerFactory.java:110)
  at com.mkyong.MainApp.startServer(MainApp.java:22)
  at com.mkyong.MainApp.main(MainApp.java:32)

Caused by: java.lang.ClassNotFoundException: jakarta.servlet.ServletInputStream
  at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:583)
  at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
  at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
  ... 5 more

1. jakarta/servlet/* and Servlet API 5.0

Since Servlet API 5.0, the API moved from the package javax.servlet to jakarta.servlet.

Below is the short history of Servlet API

2. Solution

Some libraries depend on the Servlet API 5.0, which can not found in the project dependency. We can fix it by including the following [email protected]:

  <dependency>
      <groupId>jakarta.servlet</groupId>
      <artifactId>jakarta.servlet-api</artifactId>
      <version>5.0.0</version>
  </dependency>

3. References

• Wikipedia – Jakarta Servlet
• Jakarta Servlet 5.0
• Jersey and Jetty HTTP Server examples