Add Apache Camel and Spring as jboss modules in WildFly

by Adrianos Dadis on November 29th, 2013 | Filed in: Enterprise Java Tags: Apache Camel, JBoss WildFly, Spring

These days I am playing with Wildfly and Apache Camel and Spring.

A simple way to communicate between EARs / WARs is using direct-vm component of Camel. There are many ways to achieve this with or without Camel. Camel works like a charm in WildFly without any need for extra configurations. Camel is great!!!

In order to avoid pack all required JARs of Spring and Camel with my applications, I create two modules, using the great JBoss Modules framework (which is already used by WildFly). Then I can reference these two frameworks, without the need to pack all these JARs inside my applications (EAR/WAR).

Create Spring module

Go to WildFly home dir: $> cd /home/torun/jboss/wildfly/wildfly-8.0.0.Beta1
Create Spring module directory structure:
- $> mkdir -p modules/org/springframework/3.2.5.RELEASE
Inside this new directory, create module.xml file with this content:

`01`	`<module` `xmlns="urn:jboss:module:1.3"` `name="org.springframework"` `slot="3.2.5.RELEASE">`

`02`	`<resources>`

`03`	`<resource-root` `path="aopalliance-1.0.jar"/>`

`04`	`<resource-root` `path="aspectjrt-1.7.4.jar"/>`

`05`	`<resource-root` `path="aspectjtools-1.7.4.jar"/>`

`06`	`<resource-root` `path="aspectjweaver-1.7.4.jar"/>`

`07`	`<resource-root` `path="org.aspectj.matcher-1.7.4.jar"/>`

`08`	`<resource-root` `path="spring-aop-3.2.5.RELEASE.jar"/>`

`09`	`<resource-root` `path="spring-aspects-3.2.5.RELEASE.jar"/>`

`10`	`<resource-root` `path="spring-beans-3.2.5.RELEASE.jar"/>`

`11`	`<resource-root` `path="spring-context-3.2.5.RELEASE.jar"/>`

`12`	`<resource-root` `path="spring-context-support-3.2.5.RELEASE.jar"/>`

`13`	`<resource-root` `path="spring-core-3.2.5.RELEASE.jar"/>`

`14`	`<resource-root` `path="spring-expression-3.2.5.RELEASE.jar"/>`

`15`	`<resource-root` `path="spring-jdbc-3.2.5.RELEASE.jar"/>`

`16`	`<resource-root` `path="spring-orm-3.2.5.RELEASE.jar"/>`

`17`	`<resource-root` `path="spring-oxm-3.2.5.RELEASE.jar"/>`

`18`	`<resource-root` `path="spring-tx-3.2.5.RELEASE.jar"/>`

`19`	`<resource-root` `path="spring-web-3.2.5.RELEASE.jar"/>`

`20`	`<resource-root` `path="spring-webmvc-3.2.5.RELEASE.jar"/>`

`21`	`<resource-root` `path="spring-webmvc-portlet-3.2.5.RELEASE.jar"/>`

`22`	`</resources>`

23

`24`	`<dependencies>`

`25`	`<module` `name="javaee.api"/>`

`26`	`<module` `name="org.apache.commons.logging"/>`

`27`	`<module` `name="org.jboss.vfs"/>`

`28`	`<module` `name="org.hibernate"/>`

`29`	`<module` `name="javax.el.api"` `export="true"/>`

`30`	`<module` `name="com.sun.xml.bind"` `export="true"/>`

`31`	`</dependencies>`

`32`	`</module>`

Then add all the JARs mentioned as “resource-root” inside this new directory
You are DONE with Spring module!!!
Now you can reference spring module using the next line in your “jboss-deployment-structure.xml”, from your EAR/WAR:
- <module name=”org.springframework” slot=”3.2.5.RELEASE”/>

Create Camel module

Create Camel module directory structure:
- $> mkdir -p modules/org/apache/camel/2.12.1
Inside this new directory, create module.xml file with this content:

`01`	`<module` `xmlns="urn:jboss:module:1.3"` `name="org.apache.camel"` `slot="2.12.1">`

`02`	`<resources>`

`03`	`<resource-root` `path="camel-core-2.12.1.jar"/>`

`04`	`<resource-root` `path="camel-spring-2.12.1.jar"/>`

`05`	`<resource-root` `path="jaxb-impl-2.2.6.jar"/>`

`06`	`</resources>`

`07`	`<dependencies>`

`08`	`<module` `name="org.springframework"` `slot="3.2.5.RELEASE"` `/>`

`09`	`<module` `name="org.slf4j"/>`

`10`	`<module` `name="javax.xml.bind.api"/>`

`11`	`<module` `name="javax.api"/>`

`12`	`<module` `name="sun.jdk"` `/>`

`13`	`</dependencies>`

`14`	`</module>`

Then add all the JARs mentioned as “resource-root” inside this new directory
You are DONE with Camel module!!!
Now you can reference camel module using the next line in your “jboss-deployment-structure.xml”, from your EAR/WAR:
- <module name=”org.apache.camel” slot=”2.12.1″ />

You may cut out a few jar dependencies from Spring or Camel module, but these are just my current settings and I know it works!

One more important note. While I was trying to found the correct JARs for these modules, I met a few exceptions… So, if you forget any JAR, then you may see any of these exceptions:

`01`	`Caused by: java.lang.NoClassDefFoundError: sun/misc/Unsafe`

`02`	`at org.apache.camel.com.googlecode.concurrentlinkedhashmap.ConcurrentHashMapV8.getUnsafe(ConcurrentHashMapV8.java:4136) [camel-core-2.12.1.jar:2.12.1]`

`03`	`at org.apache.camel.com.googlecode.concurrentlinkedhashmap.ConcurrentHashMapV8.<clinit>(ConcurrentHashMapV8.java:4101) [camel-core-2.12.1.jar:2.12.1]`

`04`	`at org.apache.camel.com.googlecode.concurrentlinkedhashmap.ConcurrentLinkedHashMap.<init>(ConcurrentLinkedHashMap.java:221) [camel-core-2.12.1.jar:2.12.1]`

`05`	`at org.apache.camel.com.googlecode.concurrentlinkedhashmap.ConcurrentLinkedHashMap.<init>(ConcurrentLinkedHashMap.java:104) [camel-core-2.12.1.jar:2.12.1]`

`06`	`at org.apache.camel.com.googlecode.concurrentlinkedhashmap.ConcurrentLinkedHashMap$Builder.build(ConcurrentLinkedHashMap.java:1634) [camel-core-2.12.1.jar:2.12.1]`

`07`	`at org.apache.camel.util.LRUCache.<init>(LRUCache.java:83) [camel-core-2.12.1.jar:2.12.1]`

`08`	`at org.apache.camel.util.LRUSoftCache.<init>(LRUSoftCache.java:68) [camel-core-2.12.1.jar:2.12.1]`

`09`	`at org.apache.camel.impl.EndpointRegistry.<init>(EndpointRegistry.java:39) [camel-core-2.12.1.jar:2.12.1]`

`10`	`at org.apache.camel.impl.DefaultCamelContext.<init>(DefaultCamelContext.java:234) [camel-core-2.12.1.jar:2.12.1]`

`11`	`at org.apache.camel.spring.SpringCamelContext.<init>(SpringCamelContext.java:67) [camel-spring-2.12.1.jar:2.12.1]`

`12`	`at org.apache.camel.spring.CamelContextFactoryBean.newCamelContext(CamelContextFactoryBean.java:356) [camel-spring-2.12.1.jar:2.12.1]`

`13`	`at org.apache.camel.spring.CamelContextFactoryBean.createContext(CamelContextFactoryBean.java:350) [camel-spring-2.12.1.jar:2.12.1]`

`14`	`at org.apache.camel.spring.CamelContextFactoryBean.getContext(CamelContextFactoryBean.java:361) [camel-spring-2.12.1.jar:2.12.1]`

`15`	`at org.apache.camel.spring.CamelContextFactoryBean.getContext(CamelContextFactoryBean.java:80) [camel-spring-2.12.1.jar:2.12.1]`

`16`	`at org.apache.camel.core.xml.AbstractCamelContextFactoryBean.getContext(AbstractCamelContextFactoryBean.java:518) [camel-spring-2.12.1.jar:2.12.1]`

`17`	`at org.apache.camel.core.xml.AbstractCamelContextFactoryBean.afterPropertiesSet(AbstractCamelContextFactoryBean.java:160) [camel-spring-2.12.1.jar:2.12.1]`

`18`	`at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1571) [spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]`

`19`	`at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1509) [spring-beans-3.2.5.RELEASE.jar:3.2.5.RELEASE]`

`20`	`... 23` `more`

21 Caused by: java.lang.ClassNotFoundException: sun.misc.Unsafe from [Module "org.apache.camel:2.12.1" from local module loader @1a6e5d5 (finder: local module finder @3b3402 (roots: /home/torun/jboss/wildfly/wildfly-8.0.0.Beta1/modules,/home/torun/jboss/wildfly/wildfly-8.0.0.Beta1/modules/system/layers/base))]

`22`	`at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:197) [jboss-modules.jar:1.3.0.Final]`

23 ...

`01`	`Caused by: java.lang.NoClassDefFoundError: org/w3c/dom/Node`

`02`	`at java.lang.Class.getDeclaredConstructors0(Native Method) [rt.jar:1.7.0_40]`

`03`	`at java.lang.Class.privateGetDeclaredConstructors(Class.java:2483) [rt.jar:1.7.0_40]`

`04`	`at java.lang.Class.getConstructor0(Class.java:2793) [rt.jar:1.7.0_40]`

`05`	`at java.lang.Class.getDeclaredConstructor(Class.java:2043) [rt.jar:1.7.0_40]`

`06`	`at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:105)`

`07`	`at org.springframework.beans.factory.xml.DefaultNamespaceHandlerResolver.resolve(DefaultNamespaceHandlerResolver.java:129)`

`08`	`... 29` `more`

09 Caused by: java.lang.ClassNotFoundException: org.w3c.dom.Node from [Module "org.apache.camel:2.12.1" from local module loader @1a6e5d5 (finder: local module finder @3b3402 (roots: /home/torun/jboss/wildfly/wildfly-8.0.0.Beta1/modules,/home/torun/jboss/wildfly/wildfly-8.0.0.Beta1/modules/system/layers/base))]

`10`	`at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:197) [jboss-modules.jar:1.3.0.Final]`

11 ...

`01`	`Caused by: java.lang.NoClassDefFoundError: javax/xml/bind/JAXBException`

`02`	`at java.lang.Class.getDeclaredConstructors0(Native Method) [rt.jar:1.7.0_40]`

`03`	`at java.lang.Class.privateGetDeclaredConstructors(Class.java:2483) [rt.jar:1.7.0_40]`

`04`	`at java.lang.Class.getConstructor0(Class.java:2793) [rt.jar:1.7.0_40]`

`05`	`at java.lang.Class.getDeclaredConstructor(Class.java:2043) [rt.jar:1.7.0_40]`

`06`	`at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:105)`

`07`	`at org.springframework.beans.factory.xml.DefaultNamespaceHandlerResolver.resolve(DefaultNamespaceHandlerResolver.java:129)`

`08`	`... 29` `more`

09 Caused by: java.lang.ClassNotFoundException: javax.xml.bind.JAXBException from [Module "org.apache.camel:2.12.1" from local module loader @1a6e5d5 (finder: local module finder @3b3402 (roots: /home/torun/jboss/wildfly/wildfly-8.0.0.Beta1/modules,/home/torun/jboss/wildfly/wildfly-8.0.0.Beta1/modules/system/layers/base))]

`10`	`at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:197) [jboss-modules.jar:1.3.0.Final]`

11 ...

Hope it helps!

Add Apache Camel and Spring as jboss modules in WildFly