thufir@mordor:~/java$
thufir@mordor:~/java$ nl build.gradle
     1	apply plugin: 'java'

     2	archiveBaseName = "HelloWorld"
     3	version = "0.5"


     4	task hello << {
     5	println 'hello, world'
     6	}



     7	jar {
     8	  manifest {
     9	    attributes(
    10	      'Class-Path': configurations.compile.collect { it.getName() }.join(' ')
    11	      'Main-Class': 'HelloWorld'
    12	    )
    13	  }
    14	}
thufir@mordor:~/java$
thufir@mordor:~/java$ gradle tasks

FAILURE: Build failed with an exception.

* Where:
Build file '/home/thufir/java/build.gradle' line: 17

* What went wrong:
Could not compile build file '/home/thufir/java/build.gradle'.
> startup failed:
  build file '/home/thufir/java/build.gradle': 17: unexpected token: Main-Class @ line 17, column 7.
           'Main-Class': 'HelloWorld'
           ^

  1 error


* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

Total time: 3.425 secs
thufir@mordor:~/java$