Re: compiler class

"Andrew Thompson" <andrewthommo@gmail.com> a ?crit dans le
message de news:
1167543313.265084.108700@i12g2000cwa.googlegroups.com...
Jean Pierre Daviau wrote:


...


.....


What did your tests indicate?

When I use compileClasses("string.java") I get a class not found
exception.
java.lang.ClassNotFoundException: Sample
        at Sketch.compile(Compile8.java:37)
        at Sketch.main(Compile8.java:47)

But I can make with exec (I know I would have to develop the exec
method: using wait etc.)
--------------------
   Sketch ---------------------------------
/*
"C:\Program Files\Java\jdk1.5.0_10\bin\java" -classpath
..;"C:\Program Files\Java\jdk1.5.0_10\lib\tools.jar" CompileIt

"C:\Program Files\Java\jdk1.5.0_
10\bin\java" -classpath .;"C:\Program
Files\Java\jdk1.5.0_10\lib\tools.jar" CompileIt Sample

public class Sample {
      public static void main(String args[]) {
        System.out.println(new java.util.Date());
      }
}
*/

import java.io.*;
import java.lang.reflect.*;
import java.lang.Class;
import java.lang.Compiler;

class Sketch{

 public static void compile(String filename)throws Exception {

 /*
 Runtime.getRuntime().exec("javac " + filename);
 */
 String aclass = filename.substring(0, filename.length()-5);

 // compile it
 boolean compileReturnCode =
java.lang.Compiler.compileClasses(filename);

    // run it
 Object objectParameters[] = {new String[]{filename.substring(0,
filename.length()-5)}};
 Class classParameters[] = {objectParameters[0].getClass()};
 Class aClass = Class.forName(aclass);
 Object instance = aClass.newInstance();
 Method theMethod = aClass.getDeclaredMethod("main",
classParameters);
 theMethod.invoke(instance, objectParameters);
 }

 public static void main(String[] args)throws Exception {
 String sourceFile = args[0];
 compile(sourceFile);
 /* 1.2
  System.setProperty("java.compiler", "Jikes");
 */
 }
}
-------------------------------------------------


good enough


of the com.sun.* package heirarchy are undocumented
for a variety of reasons, one of which is that Sun
reserved the right to move the 'entry points' to the code
at will. AFAIR - their were a number of changes that
affected the developers of Apache/Tomcat.

Has long has there is nothing personnal against me ;-)

JPD