Update JCMA documentation to show incompatibility with older versions of Oracle Java

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      Request

      Please update the JCMA documentation to show that earlier versions of Oracle Java may be incompatible with JCMA. Jira instances that are using Java 1.8.0_25 or older may throw the following errors.

      2020-07-14 14:19:10,549 https-jsse-nio-6391-exec-19 ERROR sean.haskell 859x167x1 l71mmk 10.144.249.21 /rest/migration/latest/check/9ed34907a910a2e0df43a551d5343df8e86e8a49/status [c.a.j.migration.preflight.AsyncCheckExecutor] Pre-flight execution error occurred for check type InvalidEmails
java.util.concurrent.ExecutionException: java.lang.VerifyError: Uninitialized object exists on backward branch 83
Exception Details:
  Location:
    com/atlassian/jira/migration/serverdataextractors/usergroup/JiraUserGroupMigrationData.<init>(Ljava/util/List;Ljava/util/List;Ljava/util/List;)V @155: goto  Reason:
    Error exists in the bytecode
  Bytecode:
    0x0000000: 2b12 21b8 0027 2c12 28b8 0027 2d12 29b8
    0x0000010: 0027 2a2b 2c2d c000 303a 043a 113a 103a
    0x0000020: 0f03 3605 1904 100a b800 36b8 003c 1010
    0x0000030: b800 4236 0619 043a 07bb 0044 5915 06b7
    0x0000040: 0047 c000 493a 0803 3609 1907 b900 4d01
    0x0000050: 003a 0a19 0ab9 0053 0100 9900 4419 0ab9
    0x0000060: 0057 0100 3a0b 1908 3a0c 190b c000 593a
    0x0000070: 0d03 360e 190d b600 5db6 0063 190d b600
    0x0000080: 67b8 006d 3a0d 0336 0e19 0c19 0db6 0072
    0x0000090: 190d b600 75b9 0079 0300 57a7 ffb8 1908
    0x00000a0: 003a 1219 0f19 1019 1119 12b7 007b b1  
  Stackmap Table:
    full_frame(@83,{UninitializedThis,Object[#138],Object[#138],Object[#138],Object[#48],Integer,Integer,Object[#48],Object[#73],Integer,Object[#79],Top,Top,Top,Top,UninitializedThis,Object[#138],Object[#138]},{})
    same_frame_extended(@158)

      Known Oracle Bug

      This is due to a bug in earlier JDK 8 versions. This appears to be corrected in Oracle Java 1.8.0_25 and greater.

      https://www.oracle.com/java/technologies/javase/8u25-bugfixes.html

      Notice this is fixed after this:

      8046233 hotspot runtime VerifyError on backward branch

            Assignee:
            Unassigned
            Reporter:
            Andy J.
            Votes:
            2 Vote for this issue
            Watchers:
            5 Start watching this issue

              Created:
              Updated: