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

Question

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

Answer 1

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.

Answer 2

On my side your code works but I had to change the following things:
Remove the cxf:bus from the blueprint
Remove the #Path on the implementation class
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