diff --git a/javac_parser/__init__.pyi b/javac_parser/__init__.pyi
index ffcdda0..388358a 100644
--- a/javac_parser/__init__.pyi
+++ b/javac_parser/__init__.pyi
@@ -1 +1 @@
-from .javac_parser import Java
+from .javac_parser import Java as Java
diff --git a/javac_parser/__version__.py b/javac_parser/__version__.py
index 55e5943..2a7df69 100644
--- a/javac_parser/__version__.py
+++ b/javac_parser/__version__.py
@@ -1,4 +1,4 @@
 #!/usr/bin/env python3
 # -*- coding: UTF-8 -*-
 
-__version__ = '0.2.4'
+__version__ = '1.0.0'
diff --git a/javac_parser/javac_parser.pyi b/javac_parser/javac_parser.pyi
index 4f6d2d2..c128d8b 100644
--- a/javac_parser/javac_parser.pyi
+++ b/javac_parser/javac_parser.pyi
@@ -13,4 +13,4 @@ Token = Tuple[str, str, Tuple[int, int], Tuple[int, int], str]
 class Java:
     def check_syntax(self, java_source: Union[str, bytes]) -> List[Diagnostic]: ...
     def get_num_parse_errors(self, java_source: Union[str, bytes]) -> int: ...
-    def lex(self, java_source: Union[str, bytes]) -> List[Token]: ...
+    def lex(self, java_source: str) -> List[Token]: ...