On 19/01/10 12:48 PM, Craig Wickesser wrote:
So I added the following to my build.gradle:
task copyToLib(dependsOn: configurations.default.buildArtifacts,
type: Copy) {
into('build/output/lib')
from configurations.default
from configurations.default.allArtifacts*.file
}
Then I ran:
$ gradle build
$ gradle copyToLib
Next I tried to run the JAR...
$ cd build\output\lib
$ dir
Directory of C:\work\projects\playground\mrhakibook\build\output\lib
01/18/2010 08:41 PM <DIR> .
01/18/2010 08:41 PM <DIR> ..
07/09/2008 03:04 PM 1,323,005 ant-1.7.1.jar
07/09/2008 03:04 PM 12,143 ant-launcher-1.7.1.jar
01/13/2007 01:28 AM 445,288 antlr-2.7.7.jar
08/27/2006 08:49 PM 34,832 asm-2.2.3.jar
08/27/2006 08:49 PM 17,977 asm-analysis-2.2.3.jar
08/27/2006 08:49 PM 16,248 asm-tree-2.2.3.jar
08/27/2006 08:49 PM 34,989 asm-util-2.2.3.jar
12/02/2009 07:11 AM 3,987,117 groovy-1.6.7.jar
02/22/2008 02:53 PM 87,325 jline-0.9.94.jar
03/03/2006 06:22 PM 120,640 junit-3.8.2.jar
01/18/2010 08:41 PM 30,589 foo-1.0-SNAPSHOT.jar
$ java -jar foo-1.0-SNAPSHOT.jar
and I get..
Exception in thread "main" java.lang.NoClassDefFoundError:
groovy/lang/GroovyObject
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$000(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
Caused by: java.lang.ClassNotFoundException: groovy.lang.GroovyObject
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
... 12 more
Could not find the main class: org.mindscratch.foo.ParseMain. Program
will exit.
I'm not sure why it can't find "GroovyObject"...the JAR is in the same
directory as my "foo" jar.
I tried this as well:
$ java -cp . org.mindscratch.foo.ParseMain ....and I get:
Exception in thread "main" java.lang.NoClassDefFoundError:
org/mindscratch/foo/ParseMain
Caused by: java.lang.ClassNotFoundException: org.mindscratch.foo.ParseMain
at java.net.URLClassLoader$1.run(Unknown Source)
I did verify the ParseMain class does exist in my "foo" jar.
By using -cp . you're asking the jvm to look for class files in the
current directory. This doesn'twork because the classes are all packaged
into jars. Instead, you want to ask it to look for class files in each
of the jars in the current directory. Some ways you can do this:
1. Include each of the jar names in the argument to the -cp option, ie
java -cp foo-1.0-SNAPSHOT.jar:groovy-1.6.7.jar:...
2. Include a 'Class-Path' attribute in the manifest of your jar which
lists all of the jars, then you can run java -jar foo-1.0-SNAPSHOT.jar
3. Merge all of the jars together, as described in the cookbook, then
you can run java -jar foo-1.0-SNAPSHOT.jar
Thanks in advance.
craig
On Sun, Jan 17, 2010 at 6:27 PM, Adam Murdoch <[email protected]
<mailto:[email protected]>> wrote:
On 18/01/10 4:15 AM, Craig Wickesser wrote:
I'm trying to get an executable JAR that contains groovy code
that I can run by doing a simple: java -jar myapp.jar
Here's my build.gradle
usePlugin 'groovy'
usePlugin 'maven' // Maven plugin to install artifact in local
Maven repo.
sourceCompatibility = '1.6'
targetCompatibility = '1.6'
manifest.mainAttributes("Main-Class" :
"org.mindscratch.foo.ParseMain")
def localMavenRepo = 'file://' + new
File(System.getProperty('user.home'), '.m2/repository').absolutePath
repositories {
// Use local Maven repo location. We don't need this if we
only want to install
// an artifact, but we do need it if we want to use
dependencies from the local
// repository.
mavenRepo urls: localMavenRepo
}
// Project configuration:
version = '1.0-SNAPSHOT'
group = 'org.mindscratch.foo'
// The following line is not necessary. Default the install tasks
depends on the
// jar task, but this means no tests and checks are executed when
we use the
// install task. The following line makes the install tasks
depend on the build task
// and now all tests and checks are done before install is executed.
install.dependsOn ':build'
repositories {
mavenCentral() // Define Maven central repository to look
for dependencies.
}
dependencies {
groovy 'org.codehaus.groovy:groovy:1.6.7' //
group:name:version is a nice shortcut notation for dependencies.
testCompile 'junit:junit:4.7'
}
task initProject(description: 'Initialize project directory
structure.') << {
// Default package to be created in each src dir.
def defaultPackage = 'org/mindscratch/foo'
['java', 'groovy', 'resources'].each {
// convention.sourceSets contains the directory structure
// for our Groovy project. So we use this struture
// and make a directory for each node.
convention.sourceSets.all."${it}".srcDirs*.each { dir ->
def newDir = new File(dir, defaultPackage)
logger.info <http://logger.info> "Creating directory $newDir" //
gradle -i shows this message.
newDir.mkdirs() // Create dir.
}
}
}
I run:
$ gradle install -i
$ cd build/libs
$ java -jar foo-1.0-SNAPSHOT.jar
..doesn't work b/c the Groovy jar isn't on the classpath (or
inside my JAR). GUess what I need is a JAR that contians the
Groovy jar inside of it (maybe in a "lib" folder). Can you help?
The cookbook has some options for creating a JAR which contains
its compile or runtime dependencies:
http://docs.codehaus.org/display/GRADLE/Cookbook#Cookbook-Creatingafatjar
There's also a JIRA issue for making this easier:
http://jira.codehaus.org/browse/GRADLE-566
--
Adam Murdoch
Gradle Developer
http://www.gradle.org
--
Adam Murdoch
Gradle Developer
http://www.gradle.org
