removing warnings

Author: emacarron

src/main/java/org/apache/ibatis/annotations/Arg.java

@@ -40,7 +40,7 @@
 
   JdbcType jdbcType() default JdbcType.UNDEFINED;
 
-  Class<? extends TypeHandler> typeHandler() default UnknownTypeHandler.class;
+  Class<? extends TypeHandler<?>> typeHandler() default UnknownTypeHandler.class;
 
   String select() default "";
 

src/main/java/org/apache/ibatis/annotations/Result.java

@@ -42,7 +42,7 @@
 
   JdbcType jdbcType() default JdbcType.UNDEFINED;
 
-  Class<? extends TypeHandler> typeHandler() default UnknownTypeHandler.class;
+  Class<? extends TypeHandler<?>> typeHandler() default UnknownTypeHandler.class;
 
   One one() default @One;
 

src/main/java/org/apache/ibatis/annotations/TypeDiscriminator.java

@@ -38,7 +38,7 @@
 
   JdbcType jdbcType() default JdbcType.UNDEFINED;
 
-  Class<? extends TypeHandler> typeHandler() default UnknownTypeHandler.class;
+  Class<? extends TypeHandler<?>> typeHandler() default UnknownTypeHandler.class;
 
   Case[] cases();
 }