[BUGFIX] For some reason, JCLiteral objects contain '1' or '0' (integers) for booleans, not actual booleans. You can tell the difference via the getKind() method. hence, boolean fields in annotations

were throwing unexpected type errors (Integer instead of Boolean). Fixed this.

src/lombok/javac/Javac.java

@@ -88,7 +88,11 @@ public class Javac {
 	
 	private static Object calculateGuess(JCExpression expr) {
 		if ( expr instanceof JCLiteral ) {
-			return ((JCLiteral)expr).value;
+			JCLiteral lit = (JCLiteral)expr;
+			if ( lit.getKind() == com.sun.source.tree.Tree.Kind.BOOLEAN_LITERAL ) {
+				return ((Number)lit.value).intValue() == 0 ? false : true;
+			}
+			return lit.value;
 		} else if ( expr instanceof JCIdent || expr instanceof JCFieldAccess ) {
 			String x = expr.toString();
 			if ( x.endsWith(".class") ) x = x.substring(0, x.length() - 6);