Ant 1.4 -- javac task

[Eddie Bernard <eb...@digitalthink.com>]

Has anyone experienced this problem?  I need to extend the memory size
parameter for the javac task.  The command line syntax for this would
normally look like:

javac -J-Xms64m -J-Xmx512m Foo.java

The only way you can make these changes is within Ant 1.4 and higher.  So,
in looking at the docs I made the following modifications to my target task:

    <javac srcdir="${lms.src};${lms.beans}"
           destdir="${lms.build}"
           excludesfile="${lms.excludesfile}"
           optimize="off"
           deprecation="off"
           depend="false"
           failonerror="no"
           classpath="${lms.classpath}"
           memoryInitialSize="64m"
           memoryMaximumSize="512m">
    </javac>

However, now I'm getting the following error:

classes:
     [echo] --(DT)--> Compiling class files
    [javac] Compiling 618 source files to /vobs/lms/build
    [javac] -J-Xmx512m is an invalid option or argument.
    [javac] Usage: javac <options> <source files>
    [javac] 
    [javac] where <options> includes:
    [javac]   -g                     Generate all debugging info
    [javac]   -g:none                Generate no debugging info
    [javac]   -g:{lines,vars,source} Generate only some debugging info
    [javac]   -O                     Optimize; may hinder debugging or
enlarge class files
    [javac]   -nowarn                Generate no warnings
    [javac]   -verbose               Output messages about what the compiler
is doing
    [javac]   -deprecation           Output source locations where
deprecated APIs are used
    [javac]   -classpath <path>      Specify where to find user class files
    [javac]   -sourcepath <path>     Specify where to find input source
files
    [javac]   -bootclasspath <path>  Override location of bootstrap class
files
    [javac]   -extdirs <dirs>        Override location of installed
extensions
    [javac]   -d <directory>         Specify where to place generated class
files
    [javac]   -encoding <encoding>   Specify character encoding used by
source files
    [javac]   -target <release>      Generate class files for specific VM
version
    [javac] Compile failed, messages should have been provided.

Anybody have any ideas on how to get around this?

Re: Ant 1.4 -- javac task

[Stefan Bodewig <bo...@apache.org>]

On Mon, 22 Oct 2001, Conor MacNeill <co...@cortexebusiness.com.au>
wrote:

> These attributes are only effective when you use the fork="yes"
> attribute, since that is the only way to control the memory of the
> javac process.

Not true for Ant 1.4, this has been fixed for Ant 1.4.1.

Eddie, you'll need to upgrade to the latest Ant release.

Stefan

RE: Ant 1.4 -- javac task

[Conor MacNeill <co...@cortexebusiness.com.au>]

Eddie,

That is a bit odd. These attributes are only effective when you use the
fork="yes" attribute, since that is the only way to control the memory of
the javac process. You should have received a warning about that.

Can you try adding the fork attribute in and also running an ant -debug to
see why this may be happening?

Conor

> -----Original Message-----
> From: Eddie Bernard [mailto:ebernard@digitalthink.com]
> Sent: Monday, 22 October 2001 3:49 PM
> To: 'ant-user@jakarta.apache.org'
> Subject: Ant 1.4 -- javac task
>
>
> Has anyone experienced this problem?  I need to extend the memory size
> parameter for the javac task.  The command line syntax for this would
> normally look like:
>
> javac -J-Xms64m -J-Xmx512m Foo.java
>
> The only way you can make these changes is within Ant 1.4 and higher.  So,
> in looking at the docs I made the following modifications to my
> target task:
>
>     <javac srcdir="${lms.src};${lms.beans}"
>            destdir="${lms.build}"
>            excludesfile="${lms.excludesfile}"
>            optimize="off"
>            deprecation="off"
>            depend="false"
>            failonerror="no"
>            classpath="${lms.classpath}"
>            memoryInitialSize="64m"
>            memoryMaximumSize="512m">
>     </javac>
>
> However, now I'm getting the following error:
>
> classes:
>      [echo] --(DT)--> Compiling class files
>     [javac] Compiling 618 source files to /vobs/lms/build
>     [javac] -J-Xmx512m is an invalid option or argument.
>     [javac] Usage: javac <options> <source files>
>     [javac]
>     [javac] where <options> includes:
>     [javac]   -g                     Generate all debugging info
>     [javac]   -g:none                Generate no debugging info
>     [javac]   -g:{lines,vars,source} Generate only some debugging info
>     [javac]   -O                     Optimize; may hinder debugging or
> enlarge class files
>     [javac]   -nowarn                Generate no warnings
>     [javac]   -verbose               Output messages about what
> the compiler
> is doing
>     [javac]   -deprecation           Output source locations where
> deprecated APIs are used
>     [javac]   -classpath <path>      Specify where to find user
> class files
>     [javac]   -sourcepath <path>     Specify where to find input source
> files
>     [javac]   -bootclasspath <path>  Override location of bootstrap class
> files
>     [javac]   -extdirs <dirs>        Override location of installed
> extensions
>     [javac]   -d <directory>         Specify where to place
> generated class
> files
>     [javac]   -encoding <encoding>   Specify character encoding used by
> source files
>     [javac]   -target <release>      Generate class files for specific VM
> version
>     [javac] Compile failed, messages should have been provided.
>
> Anybody have any ideas on how to get around this?
>
>