1 JSTYLE(1ONBLD)                illumos Build Tools               JSTYLE(1ONBLD)
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   3 
   4 
   5 NAME
   6        jstyle - check for some common stylistic errors in Java source files
   7 
   8 SYNOPSIS
   9        jstyle [-chptvC] [file...]
  10 
  11 DESCRIPTION
  12        jstyle inspects Java source files (*.java) for common stylistic errors.
  13        It is similar to cstyle(1ONBLD) in that it attempts to check for the
  14        style documented in /shared/ON/general_docs/cstyle.ms.pdf, although by
  15        necessity is modified to work with Java-specific constructs.  Note that
  16        there is much in that document that cannot be checked for; just because
  17        your code is jstyle(1ONBLD) clean does not mean that you've followed
  18        Sun's Java style.  Caveat emptor.
  19 
  20 OPTIONS
  21        The following options are supported:
  22 
  23        -c  Check continuation line indentation inside of functions.  Sun's C
  24            style states that all statements must be indented to an appropriate
  25            tab stop, and any continuation lines after them must be indented
  26            exactly four spaces from the start line.  This option enables a
  27            series of checks designed to find contination line problems within
  28            functions only.
  29 
  30        -h  Performs heuristic checks that are sometimes wrong.  Not generally
  31            used.
  32 
  33        -p  Performs some of the more picky checks.  You should generally use
  34            this.
  35 
  36        -t  Insists on indentation with tabs.  Because of the depth of nested
  37            blocks that Java requires, and the commonality of long identifiers,
  38            tab indentation in Java code is not always useful, assuming that
  39            tabs are fixed at eight columns and that maximum line length is
  40            fixed at eighty columns, so this option is not on by default.  If
  41            you choose to consider tabs to be four columns wide (not acceptable
  42            for ON), or are writing simple enough code that the nesting is not
  43            very deep, this option might be useful.  Otherwise, avoid it.
  44 
  45        -v  Verbose output; includes the text of the line of error.
  46 
  47        -C  Ignore errors in header comments (i.e., block comments starting in
  48            the first column).  Not generally used.
  49 
  50 NOTES
  51        The jstyle rule for the OS/Net consolidation is that all new files must
  52        be -p clean.  For existing files, the following invocations are run
  53        against both the old and new files:
  54 
  55        jstyle file
  56 
  57        jstyle -p file
  58 
  59        If the old file gave no errors for one of the invocations, the new file
  60        must also give no errors.  This way, files cannot become unclean.
  61 
  62 BUGS
  63        jstyle(1ONBLD) cannot disambiguate Java generic type parameters or
  64        arguments that span multiple lines from relational operators.  For
  65        example:
  66 
  67            private class Foo<A extends Bar,
  68            B extends Bar> { ...
  69 
  70        is flagged as two lines with missing spaces around relational
  71        operators.
  72 
  73 
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  75                                November 22, 2005                JSTYLE(1ONBLD)