diff -r 9023e492b2b9 -r 6e50103c0f1c rt/mojo/src/main/java/org/apidesign/bck2brwsr/mojo/AOTLibrary.java
--- a/rt/mojo/src/main/java/org/apidesign/bck2brwsr/mojo/AOTLibrary.java	Mon Dec 08 18:52:00 2014 +0100
+++ b/rt/mojo/src/main/java/org/apidesign/bck2brwsr/mojo/AOTLibrary.java	Sat Jan 10 08:55:17 2015 +0100
@@ -137,7 +137,7 @@
 
             if (!"false".equals(debug)) {
                 os.putNextEntry(new JarEntry(debug));
-                Writer w = new OutputStreamWriter(os);
+                Writer w = new OutputStreamWriter(os, "UTF-8");
                 configureMain(loader).
                     obfuscation(ObfuscationLevel.NONE).
                     generate(w);
@@ -147,7 +147,7 @@
             if (!"false".equals(minified)) {
                 os.putNextEntry(new JarEntry(minified));
             
-                Writer w = new OutputStreamWriter(os);
+                Writer w = new OutputStreamWriter(os, "UTF-8");
                 configureMain(loader).
                     obfuscation(ObfuscationLevel.FULL).
                     generate(w);
@@ -169,7 +169,7 @@
                     }
                     {
                         os.putNextEntry(new JarEntry(artifactName(a, true)));
-                        Writer w = new OutputStreamWriter(os);
+                        Writer w = new OutputStreamWriter(os, "UTF-8");
                         c.
                             obfuscation(ObfuscationLevel.NONE).
                             generate(w);
@@ -179,7 +179,7 @@
                     {
                         os.putNextEntry(new JarEntry(artifactName(a, false)));
 
-                        Writer w = new OutputStreamWriter(os);
+                        Writer w = new OutputStreamWriter(os, "UTF-8");
                         c.
                             obfuscation(ObfuscationLevel.FULL).
                             generate(w);