classpath problem with camel:dot and provided dependencies
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Key: CAMEL-3533
URL: https://issues.apache.org/jira/browse/CAMEL-3533
Project: Camel
Issue Type: Improvement
Components: tooling
Affects Versions: 2.5.0
Environment: Running on linux, jdk 1.6. Looks irrelevant.
Reporter: Pablo Gra\~na
Attachments: depends_on_test_classpath.txt
camel:dot in is failing with a class not found exception when the application
context instantiates a class in a jar with provided scope.
If in your maven project you have:
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
and in your application context there is, for example, a subclass of
ServletContextListener, mvn camel:dot fails with:
...
Caused by: java.lang.ClassNotFoundException:
javax.servlet.ServletContextListener
at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
... 92 more
If you change it to:
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>compile</scope>
</dependency>
then camel-maven-plugin correctly generates the output. The fact is
that the servlet-api jar must not be included in the final war.
I don't know the correct way to fix this. One option would be to add the
includePluginDependencies option in the plugin and add the provided jars as
runtime dependencies of the plugin.
The other, very easy to implement, option would be to change the
requiresDependencyResolution from runtime to test.
The third option would be to make the requiresDependencyResolution configurable.
Attached is a patch for the 2nd option (lazy me).
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