Lincoln, frankly, I'm stumped by this one. I never received a
LoaderConstraintViolation or anything similar. My issue was with
the seam-render not being added as a module to the plugin, since it
was already included with the Forge core. However, that issue has
since been resolved.
Thomas, I'm not sure of the cause of your exception, as including
seam-render and MVEL as dependencies solved the problem for me. If
I understand your most recent e-mail correctly, your problem is
solved if MVEL is manually added to module.xml? MVEL is not
required for my ScaffoldProvider implementation, so maybe you are
experiencing a similar problem?
Sorry,
Ryan
On 02/13/2012 07:15 PM, Lincoln Baxter, III wrote:
Ryan, how did you get around this?
Thomas, perhaps you could try including seam-render instead of
MVEL? Make sure you use the same version that Forge Shell uses as
a temporary workaround.
~Lincoln
On Mon, Feb 13, 2012 at 5:33 PM, Thomas Frühbeck <fruehbeck@aon.at>
wrote:
Hi Ryan, Lincoln
> I ran into similar problems with my own plugin
development. Including
> MVEL as a Maven dependency in your pom.xml should
resolve this issue.
this is exactly what I have tried to do. This will really look
ugly :/
I will write it as clear as possible:
in pom.xml I added:
<dependency>
<groupId>org.mvel</groupId>
<artifactId>mvel2</artifactId>
<scope>compile</scope>
</dependency>
On forge install-plugin ~/blabla/ I get:
***SUCCESS*** Installed from [plugin-faces-idaware]
successfully.
Wrote
/home/thomas/.forge/plugins/at/tfr/forge/plugin-faces-id-aware
Wrote
/home/thomas/.forge/plugins/at/tfr/forge/plugin-faces-id-aware/1.0.0-SNAPSHOT-6c38c8fd-45f4-4736-ad0a-467dc9154a11
Wrote
/home/thomas/.forge/plugins/at/tfr/forge/plugin-faces-id-aware/1.0.0-SNAPSHOT-6c38c8fd-45f4-4736-ad0a-467dc9154a11/plugin-faces-id-aware.jar
Wrote
/home/thomas/.forge/plugins/at/tfr/forge/plugin-faces-id-aware/1.0.0-SNAPSHOT-6c38c8fd-45f4-4736-ad0a-467dc9154a11/module.xml
Wrote
/home/thomas/.forge/plugins/at/tfr/forge/plugin-faces-id-aware/dependencies
Wrote
/home/thomas/.forge/plugins/at/tfr/forge/plugin-faces-id-aware/dependencies/1.0.0-SNAPSHOT-6c38c8fd-45f4-4736-ad0a-467dc9154a11
Wrote
/home/thomas/.forge/plugins/at/tfr/forge/plugin-faces-id-aware/dependencies/1.0.0-SNAPSHOT-6c38c8fd-45f4-4736-ad0a-467dc9154a11/metawidget-all-2.0.jar
Wrote
/home/thomas/.forge/plugins/at/tfr/forge/plugin-faces-id-aware/dependencies/1.0.0-SNAPSHOT-6c38c8fd-45f4-4736-ad0a-467dc9154a11/mvel2-2.1.Beta7.jar
Wrote
/home/thomas/.forge/plugins/at/tfr/forge/plugin-faces-id-aware/dependencies/1.0.0-SNAPSHOT-6c38c8fd-45f4-4736-ad0a-467dc9154a11/module.xml
So to me it is clear, that I was successful, integration of
Mvel libraries is done.
But when I invoke my plugin, I get _a
LoaderConstraintViolation_!!
[myidaware] myidaware $ set VERBOSE true
[myidaware] myidaware $ scaffold from-entity
at.tfr.test.model.* --scaffoldType idaware
Use which scaffold provider?
1 - [idaware]
2 - [faces]*
? Choose an option by typing the number of the selection
[*-default] [0] 1
***ERROR*** [scaffold from-entity] loader
constraint violation: loader (instance of
org/jboss/modules/ModuleClassLoader) previously initiated
loading for a different type with name
"org/mvel2/templates/CompiledTemplate"
org.jboss.forge.shell.exceptions.CommandExecutionException:
loader constraint violation: loader (instance of
org/jboss/modules/ModuleClassLoader) previously initiated
loading for a different type with name
"org/mvel2/templates/CompiledTemplate"
Caused by: java.lang.LinkageError: loader constraint
violation: loader (instance of
org/jboss/modules/ModuleClassLoader) previously initiated
loading for a different type with name
"org/mvel2/templates/CompiledTemplate"
So for me it is evident, that I brought my own Mvel jar, but
the module loader will not let me use it!