Initial Formula for Vert.x

[CedricGatay]

Initial Formula for Vert.x, the polyglot effortless application development environment.

[adamv]

I get:

$ vertx 
Exception in thread "main" java.lang.UnsupportedClassVersionError: org/vertx/java/deploy/impl/cli/Starter : Unsupported major.minor version 51.0
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
    at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

[adamv]

Going to 1.2.3 gives me: Error: bin does not exist

[adamv]

Current page lists: JDK. Vert.x requires JDK 1.7.0 or later.

[adamv]

@jacknagel @mxcl @MikeMcQuaid Presumably we have no problem per-se with including Java stuff that requires JDK 1.7.x, right?

[MikeMcQuaid]

No problem per-se but what OSX versions does this mean it can run on? Probably not in core as a result.

[mistydemeo]

Should add a Java17Requirement.

class Java17Requirement < Requirement
  def message; <<-EOS.undent
    Vert.x requires JDK 1.7.0 or later.
    EOS
  end

  def satisfied?
     `java -version 2>&1`.match(/\d\.\d/).to_s >= "1.7"
  end
end

(Not at my Lion box atm, not sure how that plays with its java placeholder executable.)

[adamv]

Non-fatal, I think we should allow it to be installed even if it can't be run until Java is updated.

[mistydemeo]

True, the message should make sure the user knows either way.

My main concern is that users might not see the messages printed during brew install, just the confusing message you saw when you tried to run the installed executable. If Vert.x let users know that they needed JDK 1.7.0 it would be easier for end users to debug.