feat: add TypeSafeMap

Author: lokic

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>com.github.lokic</groupId>
     <artifactId>java-plus</artifactId>
-    <version>0.1.3</version>
+    <version>0.1.4</version>
     <name>java-plus</name>
     <description>Provide some useful extensions on the basis of java8 to make java more usable.</description>
     <url>https://github.com/lokic/java-plus</url>

src/main/java/com/github/lokic/javaplus/TypeSafeMap.java

@@ -0,0 +1,16 @@
+package com.github.lokic.javaplus;
+
+import java.util.Map;
+
+public class TypeSafeMap {
+
+    private final Map<?, ?> map;
+
+    public TypeSafeMap(Map<?, ?> map) {
+        this.map = map;
+    }
+
+    public <K, V> Map<K, V> getMap() {
+        return Types.cast(map);
+    }
+}