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From Jean-Baptiste Onofré ...@nanthrax.net>
Subject Re: Jackson Module Afterburner not working in Karaf 3.0.5
Date Sat, 07 May 2016 17:10:07 GMT
Hi,

1. Can you check that the generated MANIFEST contains the afterburner 
import ?
2. If you install afterburner bundle after your bundle, you have to 
refresh your bundle as it's an optional import

Regards
JB

On 05/07/2016 05:27 PM, Debraj Manna wrote:
> Hi,
>
> I have a simple Hello World type Karaf Bundle. The activator code looks
> like below:-
>
> |public class HelloWorldActivator implements BundleActivator { @Override
> public void start(BundleContext bundleContext) throws Exception {
> System.out.println("STARTING DEMO: hello, world\n");
> System.out.println(getJsonDataAsString()); } @Override public void
> stop(BundleContext bundleContext) throws Exception {
> System.out.println("STOPPING DEMO"); } private String
> getJsonDataAsString() { JsonDataBlob jsonDataBlob = new JsonDataBlob();
> ObjectMapper objectMapper = new ObjectMapper();
> objectMapper.registerModule(new AfterburnerModule()); try { return
> objectMapper.writeValueAsString(jsonDataBlob); } catch(Exception e) {
> e.printStackTrace(); } return ""; } } |
>
> |pom.xml| looks like below:-
>
> |<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/xsd/maven-4.0.0.xsd">
> <modelVersion>4.0.0</modelVersion> <groupId>com.hello</groupId>
> <artifactId>world</artifactId> <version>0.0.1</version>
> <packaging>bundle</packaging> <name>Hello World</name> <dependencies>
> <!-- OSGi --> <dependency> <groupId>org.osgi</groupId>
> <artifactId>org.osgi.core</artifactId> <version>4.3.1</version>
> </dependency> <dependency> <groupId>org.osgi</groupId>
> <artifactId>org.osgi.compendium</artifactId> <version>4.3.1</version>
> </dependency> <dependency> <groupId>org.json</groupId>
> <artifactId>json</artifactId> <version>20160212</version> </dependency>
> <dependency> <groupId>com.fasterxml.jackson.core</groupId>
> <artifactId>jackson-core</artifactId> <version>2.6.2</version>
> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId>
> <artifactId>jackson-annotations</artifactId> <version>2.6.2</version>
> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId>
> <artifactId>jackson-databind</artifactId> <version>2.6.2</version>
> </dependency> <dependency>
> <groupId>com.fasterxml.jackson.module</groupId>
> <artifactId>jackson-module-afterburner</artifactId>
> <version>2.7.1</version> </dependency> </dependencies> <build>
> <sourceDirectory>src</sourceDirectory> <plugins> <plugin>
> <artifactId>maven-compiler-plugin</artifactId> <version>3.3</version>
> <configuration> <source>1.8</source> <target>1.8</target>
<excludes>
> <exclude>**/com/hello/main/*</exclude> </excludes> </configuration>
> </plugin> <plugin> <groupId>org.apache.felix</groupId>
> <artifactId>maven-bundle-plugin</artifactId> <version>2.4.0</version>
> <inherited>true</inherited> <extensions>true</extensions>
> <configuration> <instructions>
> <Bundle-SymbolicName>${project.artifactId}</Bundle-SymbolicName>
> <Bundle-Version>${project.version}</Bundle-Version>
> <Bundle-Activator>com.hello.world.HelloWorldActivator</Bundle-Activator>
> <Import-Package>*;resolution:=optional</Import-Package> </instructions>
> </configuration> </plugin> </plugins> </build> </project>
|
>
> The java object which I am trying to convert to json is a simple object
> as shown below:-
>
> |package com.hello.world; public class JsonDataBlob { private String add1
> = "JP Naagar"; private String add2 = ""; private int shippartagent = 1;
> public String getAdd1() { return add1; } public void setAdd1(String
> add1) { this.add1 = add1; } public String getAdd2() { return add2; }
> public void setAdd2(String add2) { this.add2 = add2; } public int
> getShippartagent() { return shippartagent; } public void
> setShippartagent(int shippartagent) { this.shippartagent =
> shippartagent; } } |
>
> Whenever I am trying to install the bundle I am getting the below
> exception:-
>
> |2016-05-07 15:36:48,986 | WARN | x-6.1-2.0/deploy | fileinstall | 7 -
> org.apache.felix.fileinstall - 3.5.0 | Error while starting bundle:
> file:/Users/debraj/Downloads/apache-servicemix-6.1-2.0/deploy/world-0.0.1.jar
> org.osgi.framework.BundleException: Activator start error in bundle
> world [239]. at
> org.apache.felix.framework.Felix.activateBundle(Felix.java:2196)[org.apache.felix.framework-4.2.1.jar:]
> at
> org.apache.felix.framework.Felix.startBundle(Felix.java:2064)[org.apache.felix.framework-4.2.1.jar:]
> at
> org.apache.felix.framework.BundleImpl.start(BundleImpl.java:955)[org.apache.felix.framework-4.2.1.jar:]
> at
> org.apache.felix.fileinstall.internal.DirectoryWatcher.startBundle(DirectoryWatcher.java:1245)[7:org.apache.felix.fileinstall:3.5.0]
> at
> org.apache.felix.fileinstall.internal.DirectoryWatcher.startBundles(DirectoryWatcher.java:1217)[7:org.apache.felix.fileinstall:3.5.0]
> at
> org.apache.felix.fileinstall.internal.DirectoryWatcher.doProcess(DirectoryWatcher.java:509)[7:org.apache.felix.fileinstall:3.5.0]
> at
> org.apache.felix.fileinstall.internal.DirectoryWatcher.process(DirectoryWatcher.java:358)[7:org.apache.felix.fileinstall:3.5.0]
> at
> org.apache.felix.fileinstall.internal.DirectoryWatcher.run(DirectoryWatcher.java:310)[7:org.apache.felix.fileinstall:3.5.0]
> Caused by: java.lang.NoClassDefFoundError:
> com/fasterxml/jackson/module/afterburner/AfterburnerModule at
> java.lang.Class.getDeclaredConstructors0(Native Method)[:1.8.0_77] at
> java.lang.Class.privateGetDeclaredConstructors(Class.java:2671)[:1.8.0_77]
> at java.lang.Class.getConstructor0(Class.java:3075)[:1.8.0_77] at
> java.lang.Class.newInstance(Class.java:412)[:1.8.0_77] at
> org.apache.felix.framework.Felix.createBundleActivator(Felix.java:4336)
> at org.apache.felix.framework.Felix.activateBundle(Felix.java:2141) ...
> 7 more Caused by: java.lang.ClassNotFoundException:
> com.fasterxml.jackson.module.afterburner.AfterburnerModule not found by
> world [239] at
> org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1532)[org.apache.felix.framework-4.2.1.jar:]
> at
> org.apache.felix.framework.BundleWiringImpl.access$400(BundleWiringImpl.java:75)[org.apache.felix.framework-4.2.1.jar:]
> at
> org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:1955)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:357)[:1.8.0_77] ...
> 13 more |
>
> All the required Jackson bundles are installed in Karaf:-
>
> |karaf@root>bundle:list | grep Jackson 123 | Active | 50 | 2.6.2 |
> Jackson-core 125 | Active | 50 | 2.6.2 | Jackson-annotations 238 |
> Installed | 80 | 2.7.1 | Jackson-module-Afterburner
> karaf@root>bundle:list | grep jackson 124 | Active | 50 | 2.6.2 |
> jackson-databind |
>
> Everything works fine if I just comment out the below line:-
>
> |objectMapper.registerModule(new AfterburnerModule()); |
>
> I have placed the required code in github
> <https://github.com/debraj-manna/afterburner-issue>
>
> Has anyone able to execute the Jackson's Afterburner module in Karaf 3.0.5?
>
> Thanks,
>
> Debraj
>

-- 
Jean-Baptiste Onofré
jbonofre@apache.org
http://blog.nanthrax.net
Talend - http://www.talend.com

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