better solution for JDT, ECJ, and class loading dynamically to get XQMode working

app/src/processing/app/Mode.java

@@ -51,6 +51,12 @@ public abstract class Mode {
 
   /** Library folder for core. (Used for OpenGL in particular.) */
   protected Library coreLibrary;
+  
+  /** 
+   * ClassLoader used to retrieve classes for this mode. Useful if you want
+   * to grab any additional classes that subclass what's in the mode folder. 
+   */
+  protected ClassLoader classLoader;
 
 
 //  public Mode(Base base, File folder) {
@@ -71,6 +77,16 @@ public abstract class Mode {
     rebuildLibraryList();
 //    rebuildExamplesMenu();
   }
+  
+  
+  public void setClassLoader(ClassLoader loader) {
+    this.classLoader = loader;
+  }
+  
+  
+  public ClassLoader getClassLoader() {
+    return classLoader;
+  }
 
 
   /**

app/src/processing/app/contrib/ModeContribution.java

@@ -96,6 +96,7 @@ public class ModeContribution extends InstalledContribution {
       Class<?> modeClass = loader.loadClass(className);
       Constructor con = modeClass.getConstructor(Base.class, File.class);
       mode = (Mode) con.newInstance(base, folder);
+      mode.setClassLoader(loader);
       mode.setupGUI();
     }
 

app/src/processing/app/tools/InstallCommander.java

@@ -82,7 +82,6 @@ public class InstallCommander implements Tool {
       String[] jarList = new String[] {
         "pde.jar",
         "antlr.jar",
-        "jdt-core.jar",
         "jna.jar",
         "ant.jar",
         "ant-launcher.jar",

app/src/processing/mode/java/Compiler.java

@@ -27,9 +27,10 @@ import processing.app.*;
 import processing.core.*;
 
 import java.io.*;
+import java.lang.reflect.Method;
 
-import org.eclipse.jdt.core.compiler.batch.BatchCompiler;
-import org.eclipse.jdt.core.compiler.CompilationProgress;
+//import org.eclipse.jdt.core.compiler.batch.BatchCompiler;
+//import org.eclipse.jdt.core.compiler.CompilationProgress;
 
 
 public class Compiler {
@@ -107,10 +108,31 @@ public class Compiler {
       PrintWriter writer = new PrintWriter(internalWriter);
 
       //result = com.sun.tools.javac.Main.compile(command, writer);
-
-      CompilationProgress progress = null;
+      
       PrintWriter outWriter = new PrintWriter(System.out);
-      success = BatchCompiler.compile(command, outWriter, writer, progress);
+      
+      // Version that's not dynamically loaded
+      //CompilationProgress progress = null;
+      //success = BatchCompiler.compile(command, outWriter, writer, progress);
+      
+      // Version that *is* dynamically loaded. First gets the mode class loader
+      // so that it can grab the compiler JAR files from it.
+      ClassLoader loader = build.mode.getClassLoader();
+      try {
+        Class batchClass = 
+          Class.forName("org.eclipse.jdt.core.compiler.batch.BatchCompiler", false, loader);
+        Class progressClass = 
+          Class.forName("org.eclipse.jdt.core.compiler.CompilationProgress", false, loader);
+        Class[] compileArgs = 
+          new Class[] { String[].class, PrintWriter.class, PrintWriter.class, progressClass };
+        Method compileMethod = batchClass.getMethod("compile", compileArgs);
+        success = (Boolean) 
+          compileMethod.invoke(null, new Object[] { command, outWriter, writer, null });
+      } catch (Exception e) {
+        e.printStackTrace();
+        throw new SketchException("Unknown error inside the compiler.");
+      }
+      
       // Close out the stream for good measure
       writer.flush();
       writer.close();

build/build.xml

@@ -37,7 +37,7 @@
   <fileset dir=".." id="runtime.jars">
     <include name="app/pde.jar" />
     <include name="app/lib/antlr.jar" />
-    <include name="app/lib/jdt-core.jar" />
+<!--    <include name="app/lib/jdt-core.jar" />-->
     <include name="app/lib/jna.jar" />
     <include name="app/lib/ant.jar" />
     <include name="app/lib/ant-launcher.jar" />

build/macosx/template.app/Contents/Info.plist

@@ -81,7 +81,7 @@
       <!-- In 0149, removed /System/Library/Java from the CLASSPATH because
            it can cause problems if users have installed weird files there.
            http://dev.processing.org/bugs/show_bug.cgi?id=1045 -->
-      <string>$JAVAROOT/pde.jar:$JAVAROOT/core/library/core.jar:$JAVAROOT/ant.jar:$JAVAROOT/ant-launcher.jar:$JAVAROOT/antlr.jar:$JAVAROOT/jdt-core.jar:$JAVAROOT/jna.jar:$JAVAROOT/quaqua.jar</string>
+      <string>$JAVAROOT/pde.jar:$JAVAROOT/core/library/core.jar:$JAVAROOT/ant.jar:$JAVAROOT/ant-launcher.jar:$JAVAROOT/antlr.jar:$JAVAROOT/jna.jar:$JAVAROOT/quaqua.jar</string>
 
       <!-- More properties can be found in http://developer.apple.com/releasenotes/Java/java141/system_properties/chapter_4_section_1.html#//apple_ref/doc/uid/TP30000285 -->
       <key>Properties</key>

build/windows/launcher/config-cmd.xml

@@ -18,7 +18,6 @@
     <cp>lib/pde.jar</cp>
     <cp>core/library/core.jar</cp>
     <cp>lib/jna.jar</cp>
-    <cp>lib/jdt-core.jar</cp>
     <cp>lib/antlr.jar</cp>
     <cp>lib/ant.jar</cp>
     <cp>lib/ant-launcher.jar</cp>

build/windows/launcher/config.xml

@@ -18,7 +18,6 @@
     <cp>lib/pde.jar</cp>
     <cp>core/library/core.jar</cp>
     <cp>lib/jna.jar</cp>
-    <cp>lib/jdt-core.jar</cp>
     <cp>lib/antlr.jar</cp>
     <cp>lib/ant.jar</cp>
     <cp>lib/ant-launcher.jar</cp>