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From "Robin Green" <gree...@hotmail.com>
Subject [PATCH] - Implemented jdk1.3 javac compilation
Date Sun, 19 Mar 2000 22:20:56 GMT
Didn't test it much, but it seems to work.

--- old/jakarta-ant/src/main/org/apache/tools/ant/taskdefs/Javac.java	Sat 
Mar  4 20:07:02 2000
+++ jakarta-ant/src/main/org/apache/tools/ant/taskdefs/Javac.java	Sun Mar 19 
21:54:05 2000
@@ -56,6 +56,7 @@

import org.apache.tools.ant.*;

+import java.lang.reflect.Method;
import java.io.*;
import java.util.*;

@@ -86,6 +87,12 @@

public class Javac extends MatchingTask {

+    /**
+     * Integer returned by the "Modern" jdk1.3 compiler to indicate 
success.
+     */
+    private static final int
+	MODERN_COMPILER_SUCCESS = 0;
+
     private File srcDir;
     private File destDir;
     private String compileClasspath;
@@ -432,6 +439,86 @@

     private void doModernCompile() throws BuildException {
         project.log("Performing a Modern Compile");
+        String classpath = getCompileClasspath();
+        Vector argList = new Vector();
+
+        if (deprecation == true)
+            argList.addElement("-deprecation");
+
+        argList.addElement("-d");
+        argList.addElement(destDir.getAbsolutePath());
+        argList.addElement("-classpath");
+        argList.addElement(classpath);
+        argList.addElement("-sourcepath");
+        argList.addElement(srcDir.getAbsolutePath());
+        if (target != null) {
+            argList.addElement("-target");
+            argList.addElement(target);
+        }
+        if (debug) {
+            argList.addElement("-g");
+        }
+        if (optimize) {
+            argList.addElement("-O");
+        }
+        if (bootclasspath != null) {
+            argList.addElement("-bootclasspath");
+            argList.addElement(bootclasspath);
+        }
+        if (extdirs != null) {
+            argList.addElement("-extdirs");
+            argList.addElement(extdirs);
+        }
+
+        project.log("Compilation args: " + argList.toString(),
+                    project.MSG_VERBOSE);
+
+        String[] args = new String[argList.size() + compileList.size()];
+        int counter = 0;
+
+        for (int i = 0; i < argList.size(); i++) {
+            args[i] = (String)argList.elementAt(i);
+            counter++;
+        }
+
+        // XXX
+        // should be using system independent line feed!
+
+        StringBuffer niceSourceList = new StringBuffer("Files to be 
compiled:"
+                                                       + "\r\n");
+
+        Enumeration enum = compileList.elements();
+        while (enum.hasMoreElements()) {
+            args[counter] = (String)enum.nextElement();
+            niceSourceList.append("    " + args[counter] + "\r\n");
+            counter++;
+        }
+
+        project.log(niceSourceList.toString(), project.MSG_VERBOSE);
+
+	// This won't build under JDK1.2.2 because the new compiler
+	// doesn't exist there.
+        //com.sun.tools.javac.Main compiler = new 
com.sun.tools.javac.Main();
+        //if (compiler.compile(args) != 0) {
+
+	// Use reflection to be able to build on all JDKs >= 1.1:
+	try {
+	    Class c = Class.forName ("com.sun.tools.javac.Main");
+	    Object compiler = c.newInstance ();
+	    Method compile = c.getMethod ("compile",
+	        new Class [] {(new String [] {}).getClass ()});
+	    int result = ((Integer) compile.invoke
+			  (compiler, new Object [] {args}))
+		.intValue ();
+	    if (result != MODERN_COMPILER_SUCCESS) {
+		String msg =
+		    "Compile failed, messages should have been provided.";
+		throw new BuildException(msg);
+	    }
+	}
+	catch (Exception ex) {
+	    throw new BuildException (ex);
+        }
     }

     /**


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