Re: Grief!

From:
Eric Sosman <esosman@comcast-dot-net.invalid>
Newsgroups:
comp.lang.java.programmer
Date:
Mon, 15 Sep 2014 17:32:30 -0400
Message-ID:
<lv7ltk$ld3$1@dont-email.me>
On 9/15/2014 5:09 PM, Knute Johnson wrote:

On 9/14/2014 18:51, Arne Vajh??j wrote:

On 9/14/2014 9:39 PM, Knute Johnson wrote:

Two days of grief, my manifest file with only one line in it:

Permissions: sandbox

Java kept rejecting the app as insecure.


Unsigned Applet and newer Java versions?

Arne


It's a signed Java Web Start app that runs in the sandbox. I have a
code signing cert and the file is signed. The problem was the blank
spaces between 'Permissions:' and 'sandbox', only one space is
permissible between the colon and the key or value. I couldn't find
anything in the docs but that is the way it works. I've never seen a
properties file or any other pair file that wouldn't ignore blank space.


     Only one space? Sounds moronic.[*] After some digging, though, I
found these syntax productions in Oracle's "JAR File Specification" at
<http://docs.oracle.com/javase/7/docs/technotes/guides/jar/jar.html#JAR_Manifest>:

    header: name : value
    ...
    value: SPACE *otherchar newline *continuation

So, the single SPACE character is actually a documented requirement of
the syntax, odd[*] as that may seem.

     [*] Maybe not completely moronic nor totally odd, though. The
syntax has no quoting convention, so if the parser were to collapse a
run of spaces together there'd be no way to specify a space as the
first character of a value -- and what a huge loss THAT would be!

--
esosman@comcast-dot-net.invalid

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