ヅラッシュ！ by NI-Lab.

OS: Debian GNU/Linux etch

javac コマンドを実行すると「Eclipse Java Compiler」と表示される。

$ javac
Eclipse Java Compiler v_677_R32x, 3.2.1 release
Copyright IBM Corp 2000, 2006. All rights reserved.
 
 Usage: <options> <source files | directories>
 If directories are specified, then their source contents are compiled.
 Possible options are listed below. Options enabled by default are prefixed
 with '+'.
 
 Classpath options:
    -cp -classpath <directories and zip/jar files separated by :>
                       specify location for application classes and sources.
                       Each directory or file can specify access rules for
                       types between '[' and ']' (e.g. [-X] to forbid
                       access to type X, [~X] to discourage access to type X,
                       [+p/X:-p/*] to forbid access to all types in package p
                       but allow access to p/X)
    -bootclasspath <directories and zip/jar files separated by :>
                       specify location for system classes. Each directory or
                       file can specify access rules for types between '['
                       and ']'
    -sourcepath <directories and zip/jar files separated by :>
                       specify location for application sources. Each directory
                       or file can specify access rules for types between '['
                       and ']'.
                       .class files created from source files contained in a
                       jar file are put in the user.dir folder in case no
                       destination directory is specified.
    -extdirs <directories separated by :>
                       specify location for extension zip/jar files
    -endorseddirs <directories separated by :>
                       specify location for endorsed zip/jar files
    -d <dir>           destination directory (if omitted, no directory is
                       created)
    -d none            generate no .class files
    -encoding <enc>    specify custom encoding for all sources. Each
                       file/directory can override it when suffixed with
                       '['<enc>']' (e.g. X.java[utf8])
 
 Compliance options:
    -1.3               use 1.3 compliance level (implicit -source 1.3
                       -target 1.1)
    -1.4             + use 1.4 compliance level (implicit -source 1.3
                       -target 1.2)
    -1.5               use 1.5 compliance level (implicit -source 1.5
                       -target 1.5)
    -1.6               use 1.6 compliance level (implicit -source 1.6
                       -target 1.6)
    -source <version>  set source level: 1.3 to 1.6 (or 5, 5.0, 6 or 6.0)
    -target <version>  set classfile target level: 1.1 to 1.6 (or 5, 5.0, 6 or
                       6.0)
 
 Warning options:
    -deprecation     + deprecation outside deprecated code
    -nowarn -warn:none disable all warnings
    -?:warn -help:warn display advanced warning options
 
 Debug options:
    -g[:lines,vars,source] custom debug info
    -g:lines,source  + both lines table and source debug info
    -g                 all debug info
    -g:none            no debug info
    -preserveAllLocals preserve unused local vars for debug purpose
 
 Ignored options:
    -J<option>         pass option to virtual machine (ignored)
    -X<option>         specify non-standard option (ignored)
    -X                 print non-standard options and exit (ignored)
    -O                 optimize for execution time (ignored)
 
 Advanced options:
    @<file>            read command line arguments from file
    -maxProblems <n>   max number of problems per compilation unit (100 by
                       default)
    -log <file>        log to a file. If the file extension is '.xml', then
                       the log will be a xml file.
    -proceedOnError    do not stop at first error, dumping class files with
                       problem methods
    -verbose           enable verbose output
    -referenceInfo     compute reference info
    -progress          show progress (only in -log mode)
    -time              display speed information
    -noExit            do not call System.exit(n) at end of compilation (n==0
                       if no error)
    -repeat <n>        repeat compilation process <n> times for perf analysis
    -inlineJSR         inline JSR bytecode (implicit if target >= 1.5)
    -enableJavadoc     consider references in javadoc
    -Xemacs            used to enable emacs-style output
 
    -? -help           print this help message
    -v -version        print compiler version
    -showversion       print compiler version and continue

でも、java コマンドは Sun の JVM らしい。

$ java -version
java version "1.5.0_14"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_14-b03)
Java HotSpot(TM) 64-Bit Server VM (build 1.5.0_14-b03, mixed mode)
$ dpkg -l | grep jdk
ii  sun-java5-jdk                     1.5.0-14-1etch1                      Sun Java(TM) Development Kit (JDK) 5.0