Fwd: Dependencies for Camel Core 2.10

[Igor Stepanov]

Failed to send the mail to "iss...@camel.apache.org", so trying this one.

---------- Forwarded message ----------
From: Igor Stepanov <stepio...@gmail.com>
Date: 2013/3/3
Subject: Dependencies for Camel Core 2.10
To: iss...@camel.apache.org


Hi Apache Camel Community,

I'm a new user of this cool integration framework. While starting to
use it, I've found several problems and had not a very good time
solving them, so now I'd like to share some of that solutions with
you.

First of all I've used this page for the list of dependencies:
http://camel.apache.org/what-are-the-dependencies.html
In my opinion it requires to be updated a bit.

I've found out that for my case it wasn't complete. I use Weblogic 10
with Java 6 and Red Hat Linux.
Error:
"NoClassDefFoundError: org/osgi/framework/BundleActivator"
Root cause:
Class "org.apache.camel.impl.osgi.Activator" has a dependency for OSGI
interfaces, so a jar with them was required for Camel deployment. I've
added "osgi.core.jar" to the list of my server's libraries.
        <dependency>
            <groupId>org.osgi</groupId>
            <artifactId>org.osgi.core</artifactId>
            <version>5.0.0</version>
            <scope>runtime</scope>
        </dependency>

Error:
Logging is not working for Apache Camel - the appropriate log files
are created, but stay empty.
Root cause:
Both jdk and log4j binding libraries of slf4j are deployed on the
server. In my case I've updated "slf4j-api.jar" and
"slf4j-log4j12.jar" to the versions required by Camel and removed
"slf4j-jdk14.jar" from the server.
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.6.1</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>1.6.1</version>
            <scope>runtime</scope>
        </dependency>

Error:
                java.lang.IllegalArgumentException: Source parameter
of type 'org.apache.camel.StringSource' is not compatible with result
parameter of type 'javax.xml.transform.stream.StreamResult'.
                    at
org.apache.xerces.jaxp.validation.StreamValidatorHelper.validate(Unknown
Source)
                    at
org.apache.xerces.jaxp.validation.ValidatorImpl.validate(Unknown
Source)
                    at
org.apache.camel.processor.validation.ValidatingProcessor.process(ValidatingProcessor.java:127)
                    at
org.apache.camel.impl.ProcessorEndpoint.onExchange(ProcessorEndpoint.java:101)
                    at
org.apache.camel.impl.ProcessorEndpoint$1.process(ProcessorEndpoint.java:71)
Root cause:
I had Apache Xerces version 2.9.1 and tried to use Camel 2.10.3/2.10.4
- error occures any time I try to use XSD validation. Than I tried
Camel 2.9.2 - everything was great.
To fix the same on 2.10.3/2.10.4 you require to update Xerces to
2.11.0, at least it works for me:
  <dependency>
    <groupId>apache</groupId>
    <artifactId>xerces</artifactId>
    <version>2.11.0</version>
    <scope>runtime</scope>
    <type>pom</type>
  </dependency>

P.S.: I've decided to move from 2.9.2 to 2.10.4 because unit tests
fail to launch on 2.9.2 for some reason. This investigation is still
in progress.

--
BR,
Igor Stepanov


--
BR,
Igor Stepanov