problems with iago on ubuntu raring

[Michael Hudson-Doyle]

Hi all,

I'm trying to use iago on ubuntu raring (if that matters) and it's not working.  I'm following the steps from the README:

% mvn package -DskipTests
% mkdir tmp; cd tmp
% unzip ../target/iago-version-package-dist.zip
% java -jar iago-version.jar -f config/my_config.scala

but it's not working:

mwhudson@narsil:iago$ rm -rf tmp
mwhudson@narsil:iago$ mkdir tmp; cd tmp
mwhudson@narsil:tmp$ unzip -q ../target/iago-package-dist.zip
mwhudson@narsil:tmp$ java -jar iago-0.6.8.jar -f config/my_config.scala
Exception in thread "main" java.lang.NoClassDefFoundError: scala/ScalaObject
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:788)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:447)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at com.twitter.parrot.launcher.LauncherMain.main(LauncherMain.scala)
Caused by: java.lang.ClassNotFoundException: scala.ScalaObject
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 13 more

I'm no Java expert, but this doesn't look right:

mwhudson@narsil:tmp$ unzip -c iago-0.6.8.jar META-INF/MANIFEST.MF| head
Archive:  iago-0.6.8.jar
  inflating: META-INF/MANIFEST.MF   
Manifest-Version: 1.0
Built-By: mwhudson
Build-Jdk: 1.7.0_25
Class-Path: libs/null-null-nullnull.null libs/null-null-nullnull.null
 libs/null-null-nullnull.null libs/null-null-nullnull.null libs/null-n
 ull-nullnull.null libs/null-null-nullnull.null libs/null-null-nullnul
 l.null libs/null-null-nullnull.null libs/null-null-nullnull.null libs
 /null-null-nullnull.null libs/null-null-nullnull.null libs/null-null-

Does anyone know what the correct fix is?

Cheers & TIA,
mwh

[James Waldrop]

The manifest is clearly odd/off. All the nulls indicate some sort of packaging error. Can you check your Maven version? mvn -version.

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[Michael Hudson-Doyle]

Sure:

mwhudson@narsil:tmp$ mvn -version
Apache Maven 2.2.1 (rdebian-8)
Java version: 1.7.0_25
Java home: /usr/lib/jvm/java-7-openjdk-amd64/jre
Default locale: en_NZ, platform encoding: UTF-8
OS name: "linux" version: "3.8.0-28-generic" arch: "amd64" Family: "unix"

Cheers,
mwh

[James Waldrop]

This is a relatively old version (I'm personally on 3, but that's even an old version of 2 I believe). I don't normally like to blame versions, especially given that everything in Maven is a plugin, but since it would be simple to upgrade, can I suggest that you do that and then see if you get the same results?

[Michael Hudson-Doyle]

Upgrading to 3.1 from maven.apache.org helped indeed.  Then there were some bashisms in the shell scripts and the JAVA_HOME guessing didn't work, but progress!

Now, has anyone run iago on an ARM server system, do you think? :)

[James Waldrop]

I haven't heard about it, but I don't know why it wouldn't work.

[James Waldrop]

p.s. why would you need to? Seems weird. :)

[Michael Hudson-Doyle]

No very good reason, I want to test an ARM server and the chassis it's in doesn't have fast enough networking to the outside world.

[James Waldrop]

Cool! Let us know how it goes. 

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