diff -r cf891b5e69ed java.lexer/src/org/netbeans/api/java/lexer/JavaTokenId.java
--- a/java.lexer/src/org/netbeans/api/java/lexer/JavaTokenId.java	Thu Mar 05 16:12:06 2009 +0100
+++ b/java.lexer/src/org/netbeans/api/java/lexer/JavaTokenId.java	Thu Mar 05 16:51:17 2009 -0800
@@ -51,6 +51,7 @@
 import org.netbeans.api.lexer.PartType;
 import org.netbeans.api.lexer.Token;
 import org.netbeans.api.lexer.TokenId;
+import org.netbeans.api.lexer.TokenUtilities;
 import org.netbeans.lib.java.lexer.JavaLexer;
 import org.netbeans.spi.lexer.LanguageEmbedding;
 import org.netbeans.spi.lexer.LanguageHierarchy;
@@ -245,6 +246,7 @@
             return new JavaLexer(info);
         }
 
+        @SuppressWarnings("unchecked")
         @Override
         protected LanguageEmbedding<?> embedding(
         Token<JavaTokenId> token, LanguagePath languagePath, InputAttributes inputAttributes) {
@@ -256,6 +258,18 @@
                 case STRING_LITERAL:
                     return LanguageEmbedding.create(JavaStringTokenId.language(), 1,
                             (token.partType() == PartType.COMPLETE) ? 1 : 0);
+                case BLOCK_COMMENT: {
+                    // JavaScript embedding? JSNI - in GWT
+                    if (token.text() != null && TokenUtilities.startsWith(token.text(), "/*-{") && // NOI18N
+                            TokenUtilities.endsWith(token.text(), "}-*/")) { // NOI18N
+                        Language lang = Language.find("text/javascript");
+                        if(lang != null) {
+                            return LanguageEmbedding.create(lang, 4, 4, true);
+                        }
+                    }
+
+                    return null;
+                }
             }
             return null; // No embedding
         }