While changing PdePreprocessor to make it more amenable to unit tests, I discovered a bug in my last fix. This fixes the bug while changing the construction of PdePreprocessor. Now instead of emitting the literal text "public" while walking the tree, I modify the tree to contain the "public" modifier on methods that lack explicit access.

android/tool/src/processing/app/tools/android/Build.java

@@ -107,7 +107,8 @@ class Build {
 
       // grab code from current editing window
       sketch.prepare();
-      className = sketch.preprocess(buildPath, new Preproc());
+      className = sketch.preprocess(buildPath, new Preproc(buildPath, sketch
+          .getName()));
       if (className != null) {
         final File androidXML = new File(androidFolder, "AndroidManifest.xml");
         writeAndroidManifest(androidXML, sketch.getName(), className);
@@ -143,6 +144,9 @@ class Build {
     } catch (final RunnerException e) {
       editor.statusError(e);
       return false;
+    } catch (final IOException e) {
+      editor.statusError(e);
+      return false;
     }
     return true;
   }
@@ -320,6 +324,12 @@ class Build {
   }
 
   class Preproc extends PdePreprocessor {
+
+    public Preproc(final String buildPath, final String sketchName)
+        throws IOException {
+      super(buildPath, sketchName);
+    }
+
     @Override
     public int writeImports(final PrintStream out) {
       out.println("package " + getPackageName() + ";");