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Date: Thu, 11 Aug 2005 16:12:13 +0200
From: Guillaume Sauthier <Guillaume.Sauthier@objectweb.org>
Organization: ObjectWeb Consortium
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To: axis-dev@ws.apache.org
Subject: [Axis2] problem with using the Ant Javac programmatically
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instead of running cmd.exe, run javac directly ?

Guillaume

Venkat Reddy wrote:

>I know. If the basic idea really works for you atleast on windows, it
>gives the hint and you can always find an equivalent command for other
>platforms :-)
>
>- venkat
>
>On 8/11/05, Eran Chinthaka <chinthaka@opensource.lk> wrote:
>  
>
>>Small problem. IMHO, this will work only in windows. You have used cmd.exe.
>>
>>    
>>
>>>Ajith,
>>>
>>>I used the following code to get the value of environment variable
>>>"JAVA_HOME" instead of sysetm variable "java.home" which always points
>>>to jre.
>>>
>>>    public static String getEnv(String env) throws Exception { //
>>>env="JAVA_HOME"
>>>        Properties envVars = new Properties();
>>>        Runtime r = Runtime.getRuntime();
>>>        Process  p = r.exec( "cmd.exe /c set" );
>>>        BufferedReader br = new BufferedReader ( new
>>>InputStreamReader( p.getInputStream() ) );
>>>
>>>        for (String line; (line = br.readLine()) != null; ) {
>>>            int idx = line.indexOf( '=' );
>>>            String key = line.substring( 0, idx );
>>>            if (key.equals(env))
>>>                return line.substring( idx+1 );
>>>        }
>>>        return "";
>>>    }
>>>
>>>- venkat
>>>
>>>
>>>On 8/9/05, Guillaume Sauthier <Guillaume.Sauthier@objectweb.org> wrote:
>>>      
>>>
>>>>Hi Ajith
>>>>
>>>>java.home sysprop is always pointing to the JRE directory.
>>>>In JOnAS, when we launch the javac command, we have to use this little
>>>>code snippet to get a real java.home (a JDK home)
>>>>
>>>>            javaHomeBin = System.getProperty("java.home", "");
>>>>            if (!("".equals(javaHomeBin))) {
>>>>                if (Env.isOsMacOsX()) {
>>>>                    javaHomeBin = javaHomeBin + File.separator + "bin" +
>>>>File.separator;
>>>>                } else {
>>>>                    javaHomeBin = javaHomeBin + File.separator + ".." +
>>>>File.separator + "bin" + File.separator;
>>>>                }
>>>>            }
>>>>
>>>>Maybe you can use this and reassign the java.home sysprop ?
>>>>
>>>>Bye
>>>>Guillaume
>>>>
>>>>Ajith Ranabahu wrote:
>>>>
>>>>        
>>>>
>>>>>Hi all,
>>>>>I am writing an end to end test case for the code generator. To
>>>>>compile the generated code I use the Javac task from Ant. However I
>>>>>'ve come across some problems, specially a weird problem where the
>>>>>'java.home' appears to be pointing to the Java runtime instead of the
>>>>>JDK home.
>>>>>Here are the details of the problem
>>>>>I've used the Javac class (from Ant) to run the compiler. When I run
>>>>>the compiler I get an error message saying "Unable to find compiler,
>>>>>Perhaps the JAVA_HOME is pointing to the correct place". I've gone
>>>>>through the Javac code and then figured out that the compiler is
>>>>>searched using the 'java.home'  directory. Strangely I have my
>>>>>JAVA_HOME pointed to c:\java\jdk1.4 but the 'java.home'  system
>>>>>property points to the c:\java\jdk1.4\jre directory (where there is no
>>>>>reference to the tools.jar) and the compile task fails miserably :(. I
>>>>>did some tests and figured that the value of the java.home system
>>>>>property changes according to the environment you run java !
>>>>>Currently the compile code is commented.
>>>>>Any pointer is appreciated
>>>>>
>>>>>Thanks
>>>>>--
>>>>>Ajith Ranabahu
>>>>>          
>>>>>
>>>>
>>>>        
>>>>
>>
>>
>>    
>>
>
>  
>