diff --git a/java/com/craftinginterpreters/lox/Scanner.java b/java/com/craftinginterpreters/lox/Scanner.java
index 52c7c27..7b3499f 100644
--- a/java/com/craftinginterpreters/lox/Scanner.java
+++ b/java/com/craftinginterpreters/lox/Scanner.java
@@ -9,7 +9,7 @@ import static com.craftinginterpreters.lox.TokenType.*;
 
 class Scanner {
   private final String source;
-  private final List<Token> tokens = new ArrayList();
+  private final List<Token> tokens = new ArrayList<Token>();
   private int start = 0;
   private int current = 0;
   private int line = 1;
diff --git a/java/com/craftinginterpreters/tool/GenerateAst.java b/java/com/craftinginterpreters/tool/GenerateAst.java
index ce9a78b..80fc6ff 100644
--- a/java/com/craftinginterpreters/tool/GenerateAst.java
+++ b/java/com/craftinginterpreters/tool/GenerateAst.java
@@ -27,7 +27,7 @@ public class GenerateAst {
 
     writer.println("package com.craftinginterpreters.lox;");
     writer.println();
-    writer.println("import java.util.List;");
+    // writer.println("import java.util.List;");
     writer.println();
     writer.println("abstract class " + baseName + " {");