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From TenLeftFingers <jarlathre...@gmail.com>
Subject Re: Build is successful but can't run?
Date Thu, 06 Feb 2014 11:12:05 GMT
I have just noticed that the dependency it complains about does not exist
in my .m2 folder. I don't know how Eclipse is executing this project but I
would have expected mvn package to pull in that dependency to the local
repository.


On Thu, Feb 6, 2014 at 10:02 AM, Jarlath Reidy <jarlathreidy@gmail.com>wrote:

> "You should specify the fully qualified main class eg:
> com.mycompany.app.App
> in the mainClass field/parameter to the plugin."
> "1. the main-class-name was supposed to be your main class"
> Let me clarify. The entry appears in the manifest as:
> mainClass: fully.qualified.path.to.MyApp
> instead of
> Main-Class: fully.qualified.path.to.MyApp
>
> I've changed it in the pom (I thought that the tag was a fixed keyword so
> I didn't change it there initially).
>
>
> "The classpathPrefix line sets where to look for additional JAR files. It
> is relative to where you are."
> So relative to where I execute my java -jar ... command from. Okay, I have
> that. I'm executing from the directory above (..) the target.
>
>
> "Maven compiles and packages your program into a JAR. It copies all of
> the supporting JAR files listed in your dependencies into target/lib.
> Before you run, make sure that target/lib exists and has all of the JAR
> files you need."
> Yep, they're all there. Including the jar which contains the class it says
> it can't load and I can see that that class is present in the jar.
>
>
> "The exec plugin (http://mojo.codehaus.org/exec-maven-plugin/) as Wayne
> has mentioned is another way to accomplish this. This will help you run
> from within an IDE or by using mvn exec:exec, but it won't help you
> package and ship your code out for other users."
> Once I get this running from the command line, this will be an option that
> I want to use. I'm still getting ClassNotFoundException though. I'm
> guessing that since I _can_ see the dependencies that this line must be the
> culprit:
> "<classpathPrefix>target/</classpathPrefix>"
> I'm going to try target/lib now.
>
> This is a sample client so packaging isn't too important at this point.
> Good to know, thank you.
>
>
> On Wed, Feb 5, 2014 at 10:17 PM, Wayne Fay [via Maven] <
> ml-node+s40175n5783328h45@n5.nabble.com> wrote:
>
>> > *Failed to load Main-Class manifest attribute from target/myApp.jar*
>> >
>> > I opened the manifest and the *Main-Class* attribute was entered as
>> > *mainClass.* So I changed it to the former and that got rid of that
>> error.
>> > But now  I *still *get the original error.
>>
>> You should specify the fully qualified main class eg:
>> com.mycompany.app.App
>> in the mainClass field/parameter to the plugin.
>>
>> Wayne
>>
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