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OSGI : CXF exception with Karaf JAX-RS: No resource methods have been found for resource

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I am getting an exception while creating a simple CXF web service with OSGI and Karaf.

Would really appreciate any comments/suggestions for fix.

Here is the description of my project and steps I followed:

  1. Downloaded the Apache Karaf-4.0.7
  2. Run the “mvn clean install” in the command line with the path to my project

  3. Started Karaf console, and run the following commands

           feature:repo-add cxf 3.1.8
       feature:install cxf/3.1.8

Interface:

  public interface MyRestService { 
         String pingMe(String echo);
    }

Implementation:

@Path("/")
public class MyRestServiceImpl implements MyRestService {

    @GET
    @Path("/{echo}")
    @Produces(MediaType.APPLICATION_XML)
    public String pingMe(@PathParam("echo") String echo) {
        return "Knock Knock: " + echo + " !!";
    }
}

OSGI blueprint.xml:

<?xml version="1.0" encoding="UTF-8"?>
<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:cm="http://aries.apache.org/blueprint/xmlns/blueprint-cm/v1.1.0"
    xmlns:cxf="http://cxf.apache.org/blueprint/core" xmlns:jaxrs="http://cxf.apache.org/blueprint/jaxrs"
    xmlns:jaxws="http://cxf.apache.org/blueprint/jaxws"
    xsi:schemaLocation="
      http://www.osgi.org/xmlns/blueprint/v1.0.0 http://www.osgi.org/xmlns/blueprint/v1.0.0/blueprint.xsd
      http://www.osgi.org/xmlns/blueprint-ext/v1.1.0 https://svn.apache.org/repos/asf/aries/tags/blueprint-0.3.1/blueprint-core/src/main/resources/org/apache/aries/blueprint/ext/blueprint-ext.xsd  
      http://cxf.apache.org/blueprint/jaxws http://cxf.apache.org/schemas/blueprint/jaxws.xsd
      http://cxf.apache.org/blueprint/jaxrs http://cxf.apache.org/schemas/blueprint/jaxrs.xsd
      http://cxf.apache.org/blueprint/core http://cxf.apache.org/schemas/blueprint/core.xsd
      http://camel.apache.org/schema/blueprint http://camel.apache.org/schema/blueprint/camel-blueprint.xsd
      http://aries.apache.org/blueprint/xmlns/blueprint-cm/v1.1.0 http://aries.apache.org/schemas/blueprint-cm/blueprint-cm-1.1.0.xsd
    ">
    <cxf:bus id=”myBusId”>
        <cxf:features>
            <cxf:logging></cxf:logging>
        </cxf:features>
    </cxf:bus>

    <jaxrs:server id="myRestService" address="/RestProject/SimpleRestCall">
        <jaxrs:serviceBeans>
            <ref component-id="myRestImpl" />
        </jaxrs:serviceBeans>
    </jaxrs:server>

    <bean id="myRestImpl" class="com.rest.api.impl.MyRestServiceImpl" />  
</blueprint>

Features.xml

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<features xmlns="http://karaf.apache.org/xmlns/features/v1.4.0"
    name="restAPI">

    <repository>mvn:org.apache.cxf.karaf/apache-cxf/3.1.8/xml/features</repository> 

    <feature name="test" description="simple test" version="1.0.0-SNAPSHOT">
        <details>A Rest server</details>

        <!-- CXF and depdendencies -->
        <feature version="3.1.8">cxf-jaxrs</feature>

        <!-- Jackson and dependencies -->
        <bundle>mvn:org.apache.servicemix.specs/org.apache.servicemix.specs.jsr339-api-2.0/2.6.0</bundle>
        <bundle>mvn:com.github.fge/jackson-coreutils/1.8</bundle>
        <bundle>mvn:com.fasterxml.jackson.core/jackson-core/2.7.4</bundle>
        <bundle>mvn:com.fasterxml.jackson.jaxrs/jackson-jaxrs-base/2.7.4</bundle>
        <bundle>mvn:com.fasterxml.jackson.core/jackson-annotations/2.7.4</bundle>
        <bundle>mvn:com.fasterxml.jackson.core/jackson-databind/2.7.4</bundle>
        <bundle>mvn:com.fasterxml.jackson.jaxrs/jackson-jaxrs-json-provider/2.7.4</bundle>
        <bundle>mvn:com.github.fge/msg-simple/1.1</bundle>
        <bundle>mvn:com.google.guava/guava/16.0.1</bundle>
        <bundle>mvn:com.github.fge/btf/1.2</bundle>
        <bundle>wrap:mvn:com.google.code.findbugs/jsr305/2.0.1</bundle>

        <!-- The myRest Server -->
        <bundle>mvn:com.rest.ebb.test/myRest/1.0.0-SNAPSHOT</bundle>

    </feature>

</features>

Pom.xml:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

    <modelVersion>4.0.0</modelVersion>

    <parent>
        <groupId>com.rest.ebb.test</groupId>
        <artifactId>myRest-parent</artifactId>
        <version>1.0.0-SNAPSHOT</version>
    </parent>

    <groupId>com.rest.ebb.test</groupId>
    <artifactId>myRest</artifactId>
    <version>1.0.0-SNAPSHOT</version>

    <packaging>bundle</packaging>
    <name>MyRestServer</name>
    <description>A server for test</description>
    <url>.example.com</url>
   <properties>
   <cxf.version>3.1.8</cxf.version>
    <skipTests>true</skipTests>
  </properties>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.felix</groupId>
                <artifactId>maven-bundle-plugin</artifactId>
                <version>2.4.0</version>
                <extensions>true</extensions>
                <configuration>
                    <instructions>
                        <Bundle-Activator>com.ebb.rest.Activator</Bundle-Activator>
                        <Embed-Dependency>!org.osgi.core,*</Embed-Dependency>
                        <Embed-Transitive>true</Embed-Transitive>
                        <Import-Package>
                            !com.google.protobuf,!com.google.protobuf.*,
                            !com.jcraft.*,
                            !com.ning.*,
                            !groovy.lang,
                            !javassist,
                            !lzma.*,
                            !net.jpountz.*,
                            !org.apache.*,
                            !org.bouncycastle.*,
                            !org.codehaus.*,
                            !org.eclipse.*,
                            !org.jboss.*,
                            !rx,
                            !sun.security.*,
                            !net.bytebuddy.*,
                            !org.HdrHistogram,
                            !org.slf4j.event,
                            !org.xerial.*,
                            !sun.reflect,
                            !sun.misc,
                            !sun.util.calendar,
                            !com.sun.jdi.*,
                            !jersey.repackaged.com.google.common.*,
                            !javax.servlet,
                            *
                        </Import-Package>
                    </instructions>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.5.1</version>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                </configuration>
            </plugin>
        </plugins>
    </build>

    <dependencies>
        <dependency>
            <groupId>org.osgi</groupId>
            <artifactId>org.osgi.core</artifactId>
            <version>5.0.0</version>
        </dependency>
        <dependency>
            <groupId>org.glassfish.jersey.core</groupId>
            <artifactId>jersey-server</artifactId>
            <version>2.24</version>
        </dependency>
        <dependency>
            <groupId>org.glassfish.jersey.containers</groupId>
            <artifactId>jersey-container-grizzly2-http</artifactId>
            <version>2.24</version>
        </dependency>
        <dependency>
            <groupId>com.google.guava</groupId>
            <artifactId>guava</artifactId>
            <version>19.0</version>
            <type>bundle</type>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>
        <dependency>
            <groupId>org.mockito</groupId>
            <artifactId>mockito-core</artifactId>
            <version>2.1.0</version>
        </dependency>
        <dependency>
            <groupId>com.google.inject</groupId>
            <artifactId>guice</artifactId>
            <version>4.1.0</version>
        </dependency>
        <dependency>
            <groupId>com.google.inject.extensions</groupId>
            <artifactId>guice-multibindings</artifactId>
            <version>4.1.0</version>
        </dependency>
        <dependency>
            <groupId>com.datastax.cassandra</groupId>
            <artifactId>cassandra-driver-core</artifactId>
            <version>3.1.0</version>
        </dependency>
        <dependency>
            <groupId>org.threeten</groupId>
            <artifactId>threetenbp</artifactId>
            <version>1.3.2</version>
        </dependency>
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.8.0</version>
        </dependency>
        <dependency>
            <groupId>com.opencsv</groupId>
            <artifactId>opencsv</artifactId>
            <version>3.7</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-simple</artifactId>
            <version>1.7.21</version>
        </dependency>
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.5.2</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.5</version>
        </dependency>
         <dependency>
        <groupId>javax.ws.rs</groupId>
        <artifactId>jsr311-api</artifactId>
        <version>1.1.1</version>
    </dependency>
    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-frontend-jaxrs</artifactId>
        <version>${cxf.version}</version>
    </dependency>

    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-transports-http</artifactId>
        <version>${cxf.version}</version>
    </dependency>

    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-transports-http-jetty</artifactId>
        <version>${cxf.version}</version>
    </dependency>
    </dependencies>
</project>

Errors:

Am not able to deploy osgi bundles in Karaf, and getting the following errors:

2017-01-06 11:00:39,340 | WARN  | pool-9-thread-1  | ResourceUtils                    | 141 - org.apache.cxf.cxf-rt-frontend-jaxrs - 3.1.8 | No resource methods have been found for reso
 class com.rest.api.impl.MyRestServiceImpl
2017-01-06 11:00:39,373 | ERROR | pool-9-thread-1  | AbstractJAXRSFactoryBean         | 141 - org.apache.cxf.cxf-rt-frontend-jaxrs - 3.1.8 | No resource classes found
2017-01-06 11:00:39,375 | WARN  | pool-9-thread-1  | BeanRecipe                       | 33 - org.apache.aries.blueprint.core - 1.6.2 | Object to be destroyed is not an instance of Unwra
edBeanHolder, type: null
2017-01-06 11:00:39,385 | ERROR | pool-9-thread-1  | BlueprintContainerImpl           | 33 - org.apache.aries.blueprint.core - 1.6.2 | Unable to start blueprint container for bundle mvn:com.abb.ecc.my/myRest/1.0.0-SNAPSHOT 
org.osgi.service.blueprint.container.ComponentDefinitionException: Unable to initialize bean myRestService
        at org.apache.aries.blueprint.container.BeanRecipe.runBeanProcInit(BeanRecipe.java:738)[33:org.apache.aries.blueprint.core:1.6.2]
        at org.apache.aries.blueprint.container.BeanRecipe.internalCreate2(BeanRecipe.java:848)[33:org.apache.aries.blueprint.core:1.6.2]
        at org.apache.aries.blueprint.container.BeanRecipe.internalCreate(BeanRecipe.java:811)[33:org.apache.aries.blueprint.core:1.6.2]
        at org.apache.aries.blueprint.di.AbstractRecipe$1.call(AbstractRecipe.java:79)[33:org.apache.aries.blueprint.core:1.6.2]
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)[:1.8.0_51]
        at org.apache.aries.blueprint.di.AbstractRecipe.create(AbstractRecipe.java:88)[33:org.apache.aries.blueprint.core:1.6.2]
        at org.apache.aries.blueprint.container.BlueprintRepository.createInstances(BlueprintRepository.java:255)[33:org.apache.aries.blueprint.core:1.6.2]
        at org.apache.aries.blueprint.container.BlueprintRepository.createAll(BlueprintRepository.java:186)[33:org.apache.aries.blueprint.core:1.6.2]
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.instantiateEagerComponents(BlueprintContainerImpl.java:724)[33:org.apache.aries.blueprint.core:1.6.2]
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.doRun(BlueprintContainerImpl.java:411)[33:org.apache.aries.blueprint.core:1.6.2]
        at org.apache.aries.blueprint.container.BlueprintContainerImpl.run(BlueprintContainerImpl.java:276)[33:org.apache.aries.blueprint.core:1.6.2]
        at org.apache.aries.blueprint.container.BlueprintExtender.createContainer(BlueprintExtender.java:300)[33:org.apache.aries.blueprint.core:1.6.2]
        at org.apache.aries.blueprint.container.BlueprintExtender.createContainer(BlueprintExtender.java:269)[33:org.apache.aries.blueprint.core:1.6.2]
        at org.apache.aries.blueprint.container.BlueprintExtender.createContainer(BlueprintExtender.java:265)[33:org.apache.aries.blueprint.core:1.6.2]
        at org.apache.aries.blueprint.container.BlueprintExtender.modifiedBundle(BlueprintExtender.java:255)[33:org.apache.aries.blueprint.core:1.6.2]
        at org.apache.aries.util.tracker.hook.BundleHookBundleTracker$Tracked.customizerModified(BundleHookBundleTracker.java:500)[43:org.apache.aries.util:1.1.1]
        at org.apache.aries.util.tracker.hook.BundleHookBundleTracker$Tracked.customizerModified(BundleHookBundleTracker.java:433)[43:org.apache.aries.util:1.1.1]
        at org.apache.aries.util.tracker.hook.BundleHookBundleTracker$AbstractTracked.track(BundleHookBundleTracker.java:725)[43:org.apache.aries.util:1.1.1]
        at org.apache.aries.util.tracker.hook.BundleHookBundleTracker$Tracked.bundleChanged(BundleHookBundleTracker.java:463)[43:org.apache.aries.util:1.1.1]
        at org.apache.aries.util.tracker.hook.BundleHookBundleTracker$BundleEventHook.event(BundleHookBundleTracker.java:422)[43:org.apache.aries.util:1.1.1]
        at org.apache.felix.framework.util.SecureAction.invokeBundleEventHook(SecureAction.java:1179)[org.apache.felix.framework-5.4.0.jar:]
        at org.apache.felix.framework.util.EventDispatcher.createWhitelistFromHooks(EventDispatcher.java:731)[org.apache.felix.framework-5.4.0.jar:]
        at org.apache.felix.framework.util.EventDispatcher.fireBundleEvent(EventDispatcher.java:486)[org.apache.felix.framework-5.4.0.jar:]
        at org.apache.felix.framework.Felix.fireBundleEvent(Felix.java:4541)[org.apache.felix.framework-5.4.0.jar:]
        at org.apache.felix.framework.Felix.startBundle(Felix.java:2172)[org.apache.felix.framework-5.4.0.jar:]
        at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:998)[org.apache.felix.framework-5.4.0.jar:]
        at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:984)[org.apache.felix.framework-5.4.0.jar:]
        at org.apache.karaf.features.internal.service.FeaturesServiceImpl.startBundle(FeaturesServiceImpl.java:1286)[10:org.apache.karaf.features.core:4.0.7]
        at org.apache.karaf.features.internal.service.Deployer.deploy(Deployer.java:846)[10:org.apache.karaf.features.core:4.0.7]
        at org.apache.karaf.features.internal.service.FeaturesServiceImpl.doProvision(FeaturesServiceImpl.java:1176)[10:org.apache.karaf.features.core:4.0.7]
        at org.apache.karaf.features.internal.service.FeaturesServiceImpl$1.call(FeaturesServiceImpl.java:1074)[10:org.apache.karaf.features.core:4.0.7]
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)[:1.8.0_51]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)[:1.8.0_51]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)[:1.8.0_51]
        at java.lang.Thread.run(Thread.java:745)[:1.8.0_51]
Caused by: org.apache.cxf.service.factory.ServiceConstructionException
        at org.apache.cxf.jaxrs.JAXRSServerFactoryBean.create(JAXRSServerFactoryBean.java:219)
        at org.apache.cxf.jaxrs.JAXRSServerFactoryBean.init(JAXRSServerFactoryBean.java:142)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)[:1.8.0_51]
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)[:1.8.0_51]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)[:1.8.0_51]
        at java.lang.reflect.Method.invoke(Method.java:497)[:1.8.0_51]
        at org.apache.aries.blueprint.utils.ReflectionUtils.invoke(ReflectionUtils.java:299)[33:org.apache.aries.blueprint.core:1.6.2]
        at org.apache.aries.blueprint.container.BeanRecipe.invoke(BeanRecipe.java:980)[33:org.apache.aries.blueprint.core:1.6.2]
        at org.apache.aries.blueprint.container.BeanRecipe.runBeanProcInit(BeanRecipe.java:736)[33:org.apache.aries.blueprint.core:1.6.2]
        ... 34 more
Caused by: org.apache.cxf.service.factory.ServiceConstructionException: No resource classes found
        at org.apache.cxf.jaxrs.AbstractJAXRSFactoryBean.checkResources(AbstractJAXRSFactoryBean.java:317)
        at org.apache.cxf.jaxrs.JAXRSServerFactoryBean.create(JAXRSServerFactoryBean.java:159)
        ... 42 more
rest jax-rs osgi cxf apache-karaf
Original Q&A
2

There are 2 best solutions below

8
On

Try to put the jax-rs annotations on the service interface.

Another possible cause is that the annotation package is not imported. You block a lot of imports in your pom. Can you check without these definitions.

2
On

On my side your code works but I had to change the following things:

  1. Remove the cxf:bus from the blueprint
  2. Remove the @Path on the implementation class
  3. Change the import section in the pom.xml

Implementation:

package com.mycompany.testcxf;

import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;

public class MyRestServiceImpl implements MyRestService {

    @Override
    @GET
    @Path("/{echo}")
    @Produces(MediaType.APPLICATION_XML)
    public String pingMe(@PathParam("echo") String echo) {
        return "Knock Knock: " + echo + " !!";
    }
}

pom.xml:

<osgi.export.package>{local-packages}</osgi.export.package>
<osgi.import.package>
    com.mycompany.testcxf*,
    *
</osgi.import.package>

and I only import the dependency: 

    <dependency>
        <groupId>org.apache.cxf</groupId>
        <artifactId>cxf-rt-frontend-jaxrs</artifactId>
        <version>2.7.13</version>
    </dependency>

Note I cannot test the CXF version 3 as you because my OSGI container is bound to this version. However this setup works perfectly for me, then it could be an issue with the CXF version and some incompatibilities with the embedded http server (Jetty?).

My setup is ServiceMix 5.1.4 with:

  • Version 2.3.9 of Apache Karaf
  • Version 2.13.3 of Camel
  • Version 2.7.13 of CXF

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