[MNG-5852] mvn shell script invokes /bin/sh but requires Bash functions

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.3.3
• Fix Version/s: 3.5.0-alpha-1, 3.5.0
• Component/s: Command Line
• Environment: Solaris 11
• Assignee: Michael Osipov
• Reporter: Jeffrey Alexander
• Created: 06/Jul/15 18:30
• Updated: 28/Mar/20 15:00
• Resolved: 30/Jan/17 12:01

Description

The bin/mvn script uses the "local" command which is a shell builtin of bash and similar shells, but is not required for POSIX-compliance in sh. When I attempt to run mvn on my Solaris system, I see the following output:

$ ./mvn
./mvn[200]: local: not found [No such file or directory]
./mvn[201]: local: not found [No such file or directory]
...

Lines 200 and 201 invoke "local" to make local variables to the function. According to "man bash", this is a shell builtin. However, bin/mvn is invoked as:

#!/bin/sh

On most flavors of linux, this resolves to bash or dash which probably runs in a restricted environment after checking to see that its $0 is sh. But on Solaris's /bin/sh is actually ksh93 for backwards compatibility.

Since "local" is not part of a POSIX-compliant /bin/sh, depending on it in a script that is invoked with /bin/sh is a bug.

Issue Links

• is duplicated by: MNG-6095 mvn script warns on Solaris
• supercedes: MNG-5837 Syntax error in bin/mvn on Solaris SPARC