[superbuilder] toBuilder + singular + javac6 was broken

superbuilder generated the node `x.pluralName(plural == null ? Collections.emptyList() : plural)`.
java6 is not smart enough to infer the appropriate generics for the emptyList() call.
Fixed by always specifying the needed type explicitly: Collections.<String>emptyList();

1 files changed, 6 insertions, 0 deletions

diff --git a/src/core/lombok/javac/handlers/JavacSingularsRecipes.java b/src/core/lombok/javac/handlers/JavacSingularsRecipes.java
index 15607ce0..4ca09b82 100644
--- a/src/core/lombok/javac/handlers/JavacSingularsRecipes.java
+++ b/src/core/lombok/javac/handlers/JavacSingularsRecipes.java
@@ -501,5 +501,11 @@ public class JavacSingularsRecipes {
 		protected abstract int getTypeArgumentsCount();
 		
 		protected abstract String getEmptyMaker(String target);
+		
+		public JCExpression getEmptyExpression(String target, JavacTreeMaker maker, SingularData data, JavacNode builderType, JavacNode source) {
+			String emptyMaker = getEmptyMaker(target);
+			List<JCExpression> typeArgs = createTypeArgs(getTypeArgumentsCount(), false, builderType, data.getTypeArgs(), source);
+			return maker.Apply(typeArgs, chainDots(builderType, emptyMaker.split("\\.")), List.<JCExpression>nil());
+		}
 	}
 }