InternalException: combination of --all and --only not allowed

Question

I was trying out jgit on z/OS. The self contained .sh is of no great use because I have to upload class files untranslated while the script source needs conversion to EBCDIC. I removed the script part and used the .jar file with a command line. When I got stuck with the following problem, I retried the same approach on MacOSX and saw it fail in the same way. This is with 3.4.1: jgit version 3.4.1.201406201815-r
AB2217:/u/ab2217/testjgit: >jgit commit -m 'first test' --all
org.eclipse.jgit.api.errors.JGitInternalException: The combination of arguments --all and --only is not allowed
at org.eclipse.jgit.api.CommitCommand.setAll(CommitCommand.java:648)
at org.eclipse.jgit.pgm.Commit.run(Commit.java:96)
at org.eclipse.jgit.pgm.TextBuiltin.execute(TextBuiltin.java:209)
at org.eclipse.jgit.pgm.Main.execute(Main.java:223)
at org.eclipse.jgit.pgm.Main.run(Main.java:124)
at org.eclipse.jgit.pgm.Main.main(Main.java:98)
this is after a 'jgit init', 'jgit add *.nrx', 'jgit commit -a -m 'first commit'. The commit fails on this internal error. A 'jgit log' shows the commit, but not subsequent commits. Can someone help?
z/OS java is IBM's 1.6, 31 bit version. MacOSX is Oracle Java 1.8.0_20 b13, although the error is the same so that might be insignificant.
Many thanks in advance.
René Vincent Jansen.

Answer 1

I thought I'd have a look around myself and I cloned the jgit repository to build the code. However, mvn clean install fails:
[INFO] JGit - Core ....................................... FAILURE [54.140s]
[INFO] JGit - Ant Tasks .................................. SKIPPED
[INFO] JGit Archive Formats .............................. SKIPPED
[INFO] JGit - AWT User Interface ......................... SKIPPED
[INFO] JGit - Apache httpclient based HTTP support ....... SKIPPED
[INFO] JGit - HTTP Server ................................ SKIPPED
[INFO] JGit - Core Java7 Support ......................... SKIPPED
[INFO] JGit - Console User Interface ..................... SKIPPED
[INFO] JGit - Command Line Interface ..................... SKIPPED
[INFO] JGit - JUnit Utility Classes ...................... SKIPPED
[INFO] JGit - JUnit Http Utility Classes ................. SKIPPED
[INFO] JGit - Core Tests ................................. SKIPPED
[INFO] JGit - Ant Tasks Tests ............................ SKIPPED
[INFO] JGit - HTTP Tests ................................. SKIPPED
[INFO] JGit - Command Line Interface Tests ............... SKIPPED
[INFO] JGit - Core Java 7 Tests .......................... SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2:15.174s
[INFO] Finished at: Thu Sep 11 14:52:52 CEST 2014
[INFO] Final Memory: 28M/205M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-javadoc-plugin:2.9.1:jar (attach-javadocs) on project org.eclipse.jgit: MavenReportException: Error while creating archive:
[ERROR] Exit code: 1 - /Users/rvjansen/apps/jgit/org.eclipse.jgit/src/org/eclipse/jgit/api/AddCommand.java:115: warning: no description for @param
[ERROR] * @param f
[ERROR] ^
[ERROR] /Users/rvjansen/apps/jgit/org.eclipse.jgit/src/org/eclipse/jgit/api/AddCommand.java:88: warning: no description for @param
[ERROR] * @param repo
[ERROR] ^
[ERROR] /Users/rvjansen/apps/jgit/org.eclipse.jgit/src/org/eclipse/jgit/api/AddNoteCommand.java:113: warning: no description for @param
[ERROR] * @param id
[ERROR] ^
[ERROR] /Users/rvjansen/apps/jgit/org.eclipse.jgit/src/org/eclipse/jgit/api/AddNoteCommand.java:78: warning: no description for @param
javac is javac 1.8.0_20-ea
repo is:
Fifi:jgit rvjansen$ git remote -v
origin git://git.eclipse.org/gitroot/jgit/jgit.git (fetch)
origin git://git.eclipse.org/gitroot/jgit/jgit.git (push)
what am I doing wrong?