问题
Stuck on this problem for a while. I'm trying to integrate Tomcat 9, JDK 10, Jersey 2.23, HK2 (for DI) along with Automatic dependency injection. I've followed this tutorial, but getting below error, I've searched a lot but couldn't find anything on that.
I've used dependency to generate "META-INF/hk2-locator/default" which is getting generate properly.
Dependency
<dependency>
<groupId>org.glassfish.hk2</groupId>
<artifactId>hk2-metadata-generator</artifactId>
<version>2.4.0</version>
</dependency>
Error stack
SEVERE: Servlet [MyApplication] in web application [/javaeeLearning] threw load() exception
java.lang.AbstractMethodError: org.jvnet.hk2.internal.DynamicConfigurationImpl.addIdempotentFilter([Lorg/glassfish/hk2/api/Filter;)V
at org.glassfish.hk2.utilities.ServiceLocatorUtilities.addClasses(ServiceLocatorUtilities.java:451)
at org.glassfish.hk2.utilities.ServiceLocatorUtilities.enablePerThreadScope(ServiceLocatorUtilities.java:107)
at org.glassfish.jersey.internal.inject.Injections._createLocator(Injections.java:141)
at org.glassfish.jersey.internal.inject.Injections.createLocator(Injections.java:123)
at org.glassfish.jersey.server.ApplicationHandler.<init>(ApplicationHandler.java:330)
at org.glassfish.jersey.servlet.WebComponent.<init>(WebComponent.java:392)
at org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:177)
at org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:369)
at javax.servlet.GenericServlet.init(GenericServlet.java:158)
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1124)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1079)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:971)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4829)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5143)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1429)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1419)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:944)
at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:839)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1429)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1419)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:944)
at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:261)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:770)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.startup.Catalina.start(Catalina.java:682)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:350)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:492)
Code for automatic DI
import java.io.IOException;
import javax.ws.rs.core.Feature;
import javax.ws.rs.core.FeatureContext;
import org.glassfish.hk2.api.DynamicConfigurationService;
import org.glassfish.hk2.api.MultiException;
import org.glassfish.hk2.api.Populator;
import org.glassfish.hk2.api.ServiceLocator;
import org.glassfish.hk2.utilities.ClasspathDescriptorFileFinder;
import org.glassfish.hk2.utilities.DuplicatePostProcessor;
import org.glassfish.jersey.ServiceLocatorProvider;
//This class will cause the HK2 framework to scan your classpath for inhabitants files that are created using the hk2-inhabitant-generator.
public class MyDiscoverableFeature implements Feature {
@Override
public boolean configure(FeatureContext context) {
ServiceLocator locator = ServiceLocatorProvider.getServiceLocator(context);
DynamicConfigurationService dcs = locator.getService(DynamicConfigurationService.class);
Populator populator = dcs.getPopulator();
try {
populator.populate(new ClasspathDescriptorFileFinder(this.getClass().getClassLoader()),
new DuplicatePostProcessor());
} catch (IOException | MultiException ex) {
System.out.println("exception occurred " + ex);
}
return true;
}
}
public class ResourceConfiguration extends ResourceConfig {
public ResourceConfiguration() {
// register(ControllerTest.class);
// register(new MyBinder());
this.packages(true, "com.walmart.services.*");
// for auto scan
register(MyDiscoverableFeature.class);
}
}
I've one interface "IUserService" annotated with org.jvnet.hk2.annotations.Contract (@Contract) with implmentation "UserServiceImpl" annotated with org.jvnet.hk2.annotations.Service (@Service)
And i've one controller class:
@Path("/sayHello")
public class ControllerTest {
@Inject
private IUserService service;
@Inject
private ServicesTest service2;
@GET
@Path("/{name}")
@Produces(MediaType.TEXT_PLAIN)
public String method(@PathParam("name") String msg) {
return service.method() + msg;
}
@GET
@Path("/v2/{name}")
@Produces(MediaType.TEXT_PLAIN)
public String method2(@PathParam("name") String msg) {
return service.method() + msg;
}
}
Along with below dependencies
<dependencies>
<!-- https://mvnrepository.com/artifact/javax/javaee-api -->
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>8.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.ws.rs/javax.ws.rs-api -->
<!-- Jersey2.x Dependencies -->
<!-- https://mvnrepository.com/artifact/org.glassfish.jersey.core/jersey-server -->
<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-server</artifactId>
<version>${jersey2.version}</version>
<exclusions>
<exclusion>
<groupId>org.glassfish.hk2</groupId>
<artifactId>hk2-utils</artifactId>
</exclusion>
<exclusion>
<groupId>org.glassfish.hk2</groupId>
<artifactId>hk2-api</artifactId>
</exclusion>
<exclusion>
<groupId>org.glassfish.hk2.external</groupId>
<artifactId>javax.inject</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- https://mvnrepository.com/artifact/org.glassfish.jersey.core/jersey-common -->
<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-common</artifactId>
<version>${jersey2.version}</version>
<exclusions>
<exclusion>
<groupId>org.glassfish.hk2</groupId>
<artifactId>hk2-utils</artifactId>
</exclusion>
<exclusion>
<groupId>org.glassfish.hk2</groupId>
<artifactId>hk2-api</artifactId>
</exclusion>
<exclusion>
<groupId>org.glassfish.hk2.external</groupId>
<artifactId>javax.inject</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet</artifactId>
<version>${jersey2.version}</version>
<exclusions>
<exclusion>
<groupId>org.glassfish.hk2.external</groupId>
<artifactId>javax.inject</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- Jersey2.x Dependency injection -->
<!-- https://mvnrepository.com/artifact/org.glassfish.jersey.inject/jersey-hk2 -->
<dependency>
<groupId>org.glassfish.jersey.inject</groupId>
<artifactId>jersey-hk2</artifactId>
<version>2.27</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.glassfish.jersey.media/jersey-media-json-jackson -->
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-json-jackson</artifactId>
<version>${jersey2.version}</version>
</dependency>
<!-- generate hk2 metadata (called inhabitant files) t -->
<!-- https://mvnrepository.com/artifact/org.glassfish.hk2/hk2-metadata-generator -->
<dependency>
<groupId>org.glassfish.hk2</groupId>
<artifactId>hk2-metadata-generator</artifactId>
<version>2.4.0</version>
</dependency>
</dependencies>
Update
The above issue is got fixed as soon i remove dependency conflict.
But now, my rest resources are not getting detect at all so i'm getting 404 error on my rest resource.
Though, if i uncomment this line in "ResourceConfiguration" // register(ControllerTest.class); Then it start showing up.
But i don't want to do this for every singel rest resource (not practical ) Please help to solve this problem
@PaulSamsotha; As mention by you to change from ;
this.packages(true, "com.walmart.services.*");
to
this.packages(true, "com.walmart.services");
Gives me below error on server start;
here is the full error;
Don't know the cause of it but as soon as i remove ".*", on server start i get below error.
Sep 27, 2018 2:42:49 PM org.apache.catalina.core.StandardContext loadOnStartup
SEVERE: Servlet [MyApplication] in web application [/javaeeLearning] threw load() exception
java.lang.IllegalArgumentException
at jersey.repackaged.org.objectweb.asm.ClassReader.<init>(ClassReader.java:170)
at jersey.repackaged.org.objectweb.asm.ClassReader.<init>(ClassReader.java:153)
at jersey.repackaged.org.objectweb.asm.ClassReader.<init>(ClassReader.java:424)
at org.glassfish.jersey.server.internal.scanning.AnnotationAcceptingListener.process(AnnotationAcceptingListener.java:170)
at org.glassfish.jersey.server.ResourceConfig.scanClasses(ResourceConfig.java:915)
at org.glassfish.jersey.server.ResourceConfig._getClasses(ResourceConfig.java:869)
at org.glassfish.jersey.server.ResourceConfig.getClasses(ResourceConfig.java:775)
at org.glassfish.jersey.server.ResourceConfig$WrappingResourceConfig._getClasses(ResourceConfig.java:1147)
at org.glassfish.jersey.server.ResourceConfig.getClasses(ResourceConfig.java:775)
at org.glassfish.jersey.server.ResourceConfig$RuntimeConfig.<init>(ResourceConfig.java:1206)
at org.glassfish.jersey.server.ResourceConfig$RuntimeConfig.<init>(ResourceConfig.java:1178)
at org.glassfish.jersey.server.ResourceConfig.createRuntimeConfig(ResourceConfig.java:1174)
at org.glassfish.jersey.server.ApplicationHandler.<init>(ApplicationHandler.java:345)
at org.glassfish.jersey.servlet.WebComponent.<init>(WebComponent.java:392)
at org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:177)
at org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:369)
at javax.servlet.GenericServlet.init(GenericServlet.java:158)
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1124)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1079)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:971)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4829)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5143)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1429)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1419)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:944)
at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:839)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1429)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1419)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:944)
at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:261)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:770)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.startup.Catalina.start(Catalina.java:682)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:350)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:492)
Moreover i found the above line does not makking any sense, even i remove it completly with register of controller everything works fine.
来源：https://stackoverflow.com/questions/52530707/jersey2-hk2-dependency-injection-automatically-gives-abstractmethoderror-org