[MacPorts] #53595: hadoop fails to install before and after selfupdate to 2.40

[MacPorts]

#53595: hadoop fails to install before and after selfupdate to 2.40
------------------------------+-------------------
  Reporter:  TheLastLovemark  |      Owner:
      Type:  defect           |     Status:  new
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:  2.4.0
Resolution:                   |   Keywords:
      Port:  hadoop           |
------------------------------+-------------------

Comment (by TheLastLovemark):

 {{{
 sh-3.2# ant -v
 Exception in thread "main" java.lang.UnsupportedClassVersionError:
 org/apache/tools/ant/launch/Launcher : Unsupported major.minor version
 52.0
         at java.lang.ClassLoader.defineClass1(Native Method)
         at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637)
         at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
         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)
 }}}

 I'm guessing this has to do with the Java issue I mentioned

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Ticket URL: <https://trac.macports.org/ticket/53595#comment:4>
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