I love me some Perl, don't get me wrong; but why would you wrap Java in Perl and then in Java again? Why are you invoking 3 different technologies (there's some shell in there) when 1 will do? If the inner Java requires an external call, why aren't you invoking it from Java?

If you are debugging a complex system, the easiest approach is to systematically debug sub systems. It sounds like your inner Java is outputting incorrectly. That means you should be debugging your Java or call-parameters, not hiding the problem in Perl.

If you do want to just ignore the issue with Perl, then see if invoking the Perl on the command line yields the expected output. If it does, then you are invoking Perl incorrectly in your Java; if it doesn't, then modify your Perl, perhaps as I've suggested above. I can't be more specific without seeing the actual code you are using at these interfaces.

#11929 First ask yourself `How would I do this without a computer?' Then have the computer do it the same way.

In reply to Re^5: neglect warnings in open 3 HANDLE_OUT by kennethk
in thread neglect warnings in open 3 HANDLE_OUT by sandeepda

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.