WireMock server failing to stop with Cucumber

[ihaworth]

I've been using WireMock with Cucumber (Cuke4Duke and CucumberJVM) and have been experiencing problems with the lifecycle of WireMock.

I start the server with the following as I can't use the @rule as it is for JUnit, not cucumber.

wireMockServer = new WireMockServer(wireMockConfig().port(8082));
wireMockServer.start();
WireMock.configureFor("localhost", 8082);
WireMock.reset();

and stopping with

wireMockServer.stop();

When wireMockServer.stop() is called then I get an exception

[INFO] 2013-05-31 15:26:24,748 [main] ERROR wiremock.org.mortbay.log - EXCEPTION 
[INFO] java.lang.NullPointerException
[INFO]        at javax.servlet.GenericServlet.getServletContext(GenericServlet.java:205)
[INFO]        at javax.servlet.GenericServlet.log(GenericServlet.java:300)
[INFO]        at javax.servlet.GenericServlet.destroy(GenericServlet.java:122)
[INFO]        at wiremock.org.mortbay.jetty.servlet.ServletHolder.destroyInstance(ServletHolder.java:318)
[INFO]        at wiremock.org.mortbay.jetty.servlet.ServletHolder.doStop(ServletHolder.java:289)
[INFO]        at wiremock.org.mortbay.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:76)
[INFO]        at wiremock.org.mortbay.jetty.servlet.ServletHandler.doStop(ServletHandler.java:185)
[INFO]        at wiremock.org.mortbay.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:76)
[INFO]        at wiremock.org.mortbay.jetty.handler.HandlerWrapper.doStop(HandlerWrapper.java:142)
[INFO]        at wiremock.org.mortbay.jetty.handler.ContextHandler.doStop(ContextHandler.java:592)
[INFO]        at wiremock.org.mortbay.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:76)
[INFO]        at wiremock.org.mortbay.jetty.handler.HandlerCollection.doStop(HandlerCollection.java:169)
[INFO]        at wiremock.org.mortbay.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:76)
[INFO]        at wiremock.org.mortbay.jetty.handler.HandlerWrapper.doStop(HandlerWrapper.java:142)
[INFO]        at wiremock.org.mortbay.jetty.Server.doStop(Server.java:283)
[INFO]        at wiremock.org.mortbay.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:76)
[INFO]        at com.github.tomakehurst.wiremock.WireMockServer.stop(WireMockServer.java:148)
[INFO]        at com.thehutgroup.acceptancetests.support.MockOrderManager.stop(MockOrderManager.java:39)
[INFO]        at com.thehutgroup.acceptancetests.steps.SetupSteps.tearDown(SetupSteps.java:27)
[INFO]        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[INFO]        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[INFO]        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[INFO]        at java.lang.reflect.Method.invoke(Method.java:597)
[INFO]        at cuke4duke.internal.java.MethodInvoker.invoke(MethodInvoker.java:21)
[INFO]        at cuke4duke.internal.jvmclass.ClassLanguage.invoke(ClassLanguage.java:120)
[INFO]        at cuke4duke.internal.jvmclass.ClassLanguage.invokeHook(ClassLanguage.java:114)
[INFO]        at cuke4duke.internal.java.JavaHook.invoke(JavaHook.java:22)
[INFO]        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[INFO]        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[INFO]        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[INFO]        at java.lang.reflect.Method.invoke(Method.java:597)

Jetty seems not to close and the port (8082) is left occupied, such that should I start to run another test, starting WireMock fails to bind to port 8082.

[tomakehurst]

Do you have an additional copy of the servlet API on the classpath?

In the version of GenericServlet embedded within Jetty, line 205 is a comment, which suggests the version you're running is different.

[ihaworth]

Good spot! That seems to be it. All working smoothly now. :) Thanks

[tomakehurst]

No worries, glad you got it sorted.

[mikemike754]

I encounted the same problem. But I have only one servlet jar version in my pom:
CMD$: mvn dependency:tree | grep servlet
Output: [INFO] | - javax.servlet:servlet-api:jar:2.3:compile

What's possible reasons? @tomakehurst

and my pom version of wiremock is:

com.github.tomakehurst
wiremock-standalone
2.6.0

    <dependency>
        <groupId>org.hamcrest</groupId>
        <artifactId>hamcrest-core</artifactId>
        <version>1.3</version>
        <scope>test</scope>
    </dependency>