user2638465 user2638465 - 4 months ago 55
Java Question

Problems running JerseyTest when dealing with HttpServletResponse

Here is a sample Resource class:

@Path("/resource")
public class SomeResource {
@GET
@Produces({MediaType.APPLICATION_XML})
public String someMethod(@QueryParam("param1") String param1, ..., @Context HttpServletRequest request) {
String remoteUser = request.getRemoteAddr();
// Business logic here.
return response;
}
}


And the JerseyTest for the resource:

public class TestSomeResource extends JerseyTest {
@Override
protected Application configure() {
enable(TestProperties.LOG_TRAFFIC);
return new ResourceConfig(SomeResource.class);
}

@Test
public void testXMLResponse() {
String response = target("resource")
.queryParam("param1", param1)
// More parameters here.
.request()
.accept(MediaType.APPLICATION_XML)
.get(String.class);
// Some assertions on response.
}
}


I am able to run jersey tests for all other resources except the ones using
@Context HttpServletRequest
as an input parameter. It gives a
InternalServerErrorException: HTTP 500 Internal Server Error.


Following is the stacktrace:

javax.ws.rs.InternalServerErrorException: HTTP 500 Internal Server Error
at org.glassfish.jersey.client.JerseyInvocation.convertToException(JerseyInvocation.java:904)
at org.glassfish.jersey.client.JerseyInvocation.translate(JerseyInvocation.java:749)
at org.glassfish.jersey.client.JerseyInvocation.access$500(JerseyInvocation.java:88)
at org.glassfish.jersey.client.JerseyInvocation$2.call(JerseyInvocation.java:650)
at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
at org.glassfish.jersey.internal.Errors.process(Errors.java:228)
at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:421)
at org.glassfish.jersey.client.JerseyInvocation.invoke(JerseyInvocation.java:646)
at org.glassfish.jersey.client.JerseyInvocation$Builder.method(JerseyInvocation.java:375)
at org.glassfish.jersey.client.JerseyInvocation$Builder.get(JerseyInvocation.java:275)
at com.mysample.TestSomeResource.testXMLResponse(TestSomeResource.java:15)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

Answer

You exception is related to the fact that the HttpServletRequest is null.

Jersey documentation says:

3.6. Use of @Context

Previous sections have introduced the use of @Context. Chapter 5 of the JAX-RS specification presents all the standard JAX-RS Java types that may be used with @Context.

When deploying a JAX-RS application using servlet then ServletConfig, ServletContext, HttpServletRequest and HttpServletResponse are available using @Context.

I'm guessing that you use jersey-test-framework-provider-grizzly2 which doesn't support it.

If you want to have access to HttpServletResponse remove that dependency and add:

<dependency>
    <groupId>org.glassfish.jersey.test-framework</groupId>
    <artifactId>jersey-test-framework-core</artifactId>
    <version>2.1</version>
</dependency>
<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>javax.servlet-api</artifactId>
    <version>3.0.1</version>
</dependency>
<dependency>
    <groupId>org.glassfish.jersey.containers</groupId>
    <artifactId>jersey-container-grizzly2-servlet</artifactId>
    <version>2.1</version>
</dependency>

Now you actually want to tell JerseyTest to start the right test server, to do that you have to override a method protected TestContainerFactory getTestContainerFactory(). Please be sure to replace <your-java-package> with the actual name of your package.

@Override
protected TestContainerFactory getTestContainerFactory() throws TestContainerException {
    return new TestContainerFactory() {
        @Override
        public TestContainer create(final URI baseUri, final ApplicationHandler application) throws IllegalArgumentException {
            return new TestContainer() {
                private HttpServer server;

                @Override
                public ClientConfig getClientConfig() {
                    return null;
                }

                @Override
                public URI getBaseUri() {
                    return baseUri;
                }

                @Override
                public void start() {
                    try {
                        this.server = GrizzlyWebContainerFactory.create(
                                baseUri, Collections.singletonMap("jersey.config.server.provider.packages", "<your-java-package>")
                        );
                    } catch (ProcessingException e) {
                        throw new TestContainerException(e);
                    } catch (IOException e) {
                        throw new TestContainerException(e);
                    }
                }

                @Override
                public void stop() {
                    this.server.stop();
                }
            };

        }
    };
}

You can also check org.glassfish.jersey.test.grizzly.GrizzlyTestContainerFactory for better implementation of the factory.

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