Hello team, This is a call for help .. I'm working on integration testing of a microservice and I'm using wiremock-spring-boot to stub external APIs during tests. I refer to this docs page and those examples. I'm getting few errors that seem related to dependencies conflicts .. When I first ran my tests with

wiremock-spring-boot 3.6

, I got this:

java.lang.NoClassDefFoundError: org/eclipse/jetty/servlet/ServletContextHandler

	at com.github.tomakehurst.wiremock.jetty.JettyHttpServerFactory.buildHttpServer(JettyHttpServerFactory.java:28)
	at com.github.tomakehurst.wiremock.WireMockServer.<init>(WireMockServer.java:75)
	at org.wiremock.spring.internal.WireMockServerCreator.createWireMockServer(WireMockServerCreator.java:93)
	at org.wiremock.spring.internal.WireMockContextCustomizer.resolveOrCreateWireMockServer(WireMockContextCustomizer.java:57)
	at org.wiremock.spring.internal.WireMockContextCustomizer.customizeContext(WireMockContextCustomizer.java:47)
	at org.springframework.boot.test.context.SpringBootContextLoader$ContextCustomizerAdapter.initialize(SpringBootContextLoader.java:435)
	at org.springframework.boot.SpringApplication.applyInitializers(SpringApplication.java:607)
	at org.springframework.boot.SpringApplication.prepareContext(SpringApplication.java:387)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:311)
	at org.springframework.boot.test.context.SpringBootContextLoader.lambda$loadContext$3(SpringBootContextLoader.java:137)
	at org.springframework.util.function.ThrowingSupplier.get(ThrowingSupplier.java:58)
	at org.springframework.util.function.ThrowingSupplier.get(ThrowingSupplier.java:46)
	at org.springframework.boot.SpringApplication.withHook(SpringApplication.java:1406)
	at org.springframework.boot.test.context.SpringBootContextLoader$ContextLoaderHook.run(SpringBootContextLoader.java:545)
	at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:137)
	at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:108)
	at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:187)
	at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:119)
	at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:127)
	at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:141)
	at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:97)
	at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:241)
	...

I tried to add wiremock-jetty12 dependency, but ran into this

java.lang.NoClassDefFoundError: org/eclipse/jetty/server/ConnectionMetaData at java.base/java.lang.ClassLoader.defineClass1(Native Method) at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1023) at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150) at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:862) at java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:760) at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:681) at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:639) at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:525) at com.github.tomakehurst.wiremock.jetty11.Jetty11HttpServer.createHttpConnector(Jetty11HttpServer.java:90) at com.github.tomakehurst.wiremock.jetty.JettyHttpServer.<init>(JettyHttpServer.java:79) at com.github.tomakehurst.wiremock.jetty11.Jetty11HttpServer.<init>(Jetty11HttpServer.java:76) at com.github.tomakehurst.wiremock.jetty.JettyHttpServerFactory.buildHttpServer(JettyHttpServerFactory.java:28) at com.github.tomakehurst.wiremock.WireMockServer.<init>(WireMockServer.java:75) at org.wiremock.spring.internal.WireMockServerCreator.createWireMockServer(WireMockServerCreator.java:93) at org.wiremock.spring.internal.WireMockContextCustomizer.resolveOrCreateWireMockServer(WireMockContextCustomizer.java:57)

Last, I tried to force jetty12 and exclude jetty11 but got this

error java.lang.NoClassDefFoundError: org/eclipse/jetty/http/MimeTypes$Mutable at org.eclipse.jetty.server.Server.<init>(Server.java:85) at org.eclipse.jetty.server.Server.<init>(Server.java:141) at com.github.tomakehurst.wiremock.jetty.JettyHttpServer.createServer(JettyHttpServer.java:125) at com.github.tomakehurst.wiremock.jetty.JettyHttpServer.<init>(JettyHttpServer.java:70) at com.github.tomakehurst.wiremock.jetty12.Jetty12HttpServer.<init>(Jetty12HttpServer.java:74) at com.github.tomakehurst.wiremock.jetty12.Jetty12HttpServerFactory.buildHttpServer(Jetty12HttpServerFactory.java:33) at com.github.tomakehurst.wiremock.WireMockServer.<init>(WireMockServer.java:75)

Could you please assist in how to fix this dependencies issue so I can use wiremock smoothly🙏 for reference, Spring Boot version is (v3.1.2) Thanks

From what I can tell Spring Boot

3.1.2

still uses jetty 11. Are you fixed to that version of Spring Boot or can you upgrade ?

For now, I'm fixed to this version of Spring Boot

Is there any chance you can put together a small project that reproduces the issue so we can help diagnose the issue?

Sure! will try to do shortly and share it with you.

Thank you very much, that would be very helpful

Thank you for sharing these references, will check them