diff --git a/src/builder/java/speiger/src/builder/GlobalVariables.java b/src/builder/java/speiger/src/builder/GlobalVariables.java
index b820921a..37b7bed7 100644
--- a/src/builder/java/speiger/src/builder/GlobalVariables.java
+++ b/src/builder/java/speiger/src/builder/GlobalVariables.java
@@ -175,6 +175,8 @@ public class GlobalVariables
 		addFunctionValueMappers("ENUM_MAP", valueType.isObject() ? "Enum2ObjectMap" : "Enum2%sMap");
 		addBiClassMapper("HASH_MAP", "OpenHashMap", "2");
 		addBiClassMapper("ARRAY_MAP", "ArrayMap", "2");
+		addBiClassMapper("IMMUTABLE_PAIR", "ImmutablePair", "");
+		addBiClassMapper("MUTABLE_PAIR", "MutablePair", "");
 		addClassMapper("RB_TREE_SET", "RBTreeSet");
 		addClassMapper("AVL_TREE_SET", "AVLTreeSet");
 		addClassMapper("ARRAY_SET", "ArraySet");
@@ -214,6 +216,7 @@ public class GlobalVariables
 		addBiClassMapper("SORTED_MAP", "SortedMap", "2");
 		addBiClassMapper("MAP", "Map", "2");
 		addClassMapper("NAVIGABLE_SET", "NavigableSet");
+		addBiClassMapper("PAIR", "Pair", "");
 		addClassMapper("PRIORITY_QUEUE", "PriorityQueue");
 		addClassMapper("PRIORITY_DEQUEUE", "PriorityDequeue");
 		addClassMapper("PREDICATE", "2BooleanFunction");
@@ -266,6 +269,8 @@ public class GlobalVariables
 		addFunctionValueMappers("LAST_ENTRY_VALUE", "last%sValue");
 		addFunctionMappers("ENTRY_KEY", "get%sKey");
 		addFunctionValueMappers("ENTRY_VALUE", "get%sValue");
+		addFunctionMappers("KEY_ENTRY", "set%sKey");
+		addFunctionValueMappers("VALUE_ENTRY", "set%sValue");
 		addFunctionMapper("GET_KEY", "get");
 		if(type.isObject()) addFunctionValueMapper("GET_VALUE", valueType.isObject() ? "getObject" : "get");
 		else addSimpleMapper("GET_VALUE", "get");
diff --git a/src/builder/java/speiger/src/builder/PrimitiveCollectionsBuilder.java b/src/builder/java/speiger/src/builder/PrimitiveCollectionsBuilder.java
index 2ebc2276..59c56762 100644
--- a/src/builder/java/speiger/src/builder/PrimitiveCollectionsBuilder.java
+++ b/src/builder/java/speiger/src/builder/PrimitiveCollectionsBuilder.java
@@ -70,6 +70,9 @@ public class PrimitiveCollectionsBuilder extends TemplateProcessor
 		enumRequired.add("LinkedEnumMap");
 		biRequired.put("BiConsumer", "");
 		biRequired.put("UnaryOperator", "");
+		biRequired.put("Pair", "");
+		biRequired.put("MutablePair", "");
+		biRequired.put("ImmutablePair", "");
 		addBiClass("Function", "Maps", "Map", "SortedMap", "NavigableMap", "AbstractMap", "ImmutableOpenHashMap", "OpenHashMap", "LinkedOpenHashMap", "OpenCustomHashMap", "LinkedOpenCustomHashMap", "ArrayMap", "RBTreeMap", "AVLTreeMap");
 		nameRemapper.put("BiConsumer", "%sConsumer");
 		nameRemapper.put("IArray", "I%sArray");
diff --git a/src/builder/resources/speiger/assets/collections/templates/misc/pairs/Pair.template b/src/builder/resources/speiger/assets/collections/templates/misc/pairs/Pair.template
new file mode 100644
index 00000000..89c439fa
--- /dev/null
+++ b/src/builder/resources/speiger/assets/collections/templates/misc/pairs/Pair.template
@@ -0,0 +1,157 @@
+package speiger.src.collections.PACKAGE.misc.pairs;
+
+import speiger.src.collections.PACKAGE.misc.pairs.impl.IMMUTABLE_PAIR;
+import speiger.src.collections.PACKAGE.misc.pairs.impl.MUTABLE_PAIR;
+/**
+ * Key Value Pair Interface that allows to reduce boxing/unboxing.
+ * @Type(T)
+ * @ValueType(V)
+ */
+public interface PAIR KEY_VALUE_GENERIC_TYPE
+{
+	/**
+	 * Empty Reference for Immutable Pairs
+	 */
+	public static final PAIR NO_KV_GENERIC_TYPE EMPTY = new IMMUTABLE_PAIRKV_BRACES();
+	
+	/**
+	 * @Type(T)
+	 * @ValueType(V)
+	 * @return empty Immutable Pair
+	 */
+	public static GENERIC_KEY_VALUE_BRACES PAIR KEY_VALUE_GENERIC_TYPE of() {
+#if TYPE_OBJECT || VALUE_OBJECT
+		return (PAIR KEY_VALUE_GENERIC_TYPE)EMPTY;
+#else
+		return EMPTY;
+#endif
+	}
+	
+	/**
+	 * @param key the key that should be in the pair
+	 * @Type(T)
+	 * @ValueType(V)
+	 * @return Immutable Pair of Key
+	 */	
+	public static GENERIC_KEY_VALUE_BRACES PAIR KEY_VALUE_GENERIC_TYPE ofKey(KEY_TYPE key) {
+		return new IMMUTABLE_PAIRKV_BRACES(key, EMPTY_VALUE);
+	}
+	
+	/**
+	 * @param value the value that should be in the pair
+	 * @Type(T)
+	 * @ValueType(V)
+	 * @return Immutable Pair of Value
+	 */	
+	public static GENERIC_KEY_VALUE_BRACES PAIR KEY_VALUE_GENERIC_TYPE ofValue(VALUE_TYPE value) {
+		return new IMMUTABLE_PAIRKV_BRACES(EMPTY_KEY_VALUE, value);
+	}
+	
+	/**
+	 * @param key the key that should be in the pair
+	 * @param value the value that should be in the pair
+	 * @Type(T)
+	 * @ValueType(V)
+	 * @return Immutable Pair of key and value
+	 */
+	public static GENERIC_KEY_VALUE_BRACES PAIR KEY_VALUE_GENERIC_TYPE of(KEY_TYPE key, VALUE_TYPE value) {
+		return new IMMUTABLE_PAIRKV_BRACES(key, value);
+	}
+	
+	/**
+	 * @param pair the Pair that should be immutably copied
+	 * @Type(T)
+	 * @ValueType(V)
+	 * @return a Immutable Copy of the Provided Pair
+	 */
+	public static GENERIC_KEY_VALUE_BRACES PAIR KEY_VALUE_GENERIC_TYPE of(PAIR KEY_VALUE_GENERIC_TYPE pair) {
+		return new IMMUTABLE_PAIRKV_BRACES(pair.ENTRY_KEY(), pair.ENTRY_VALUE());
+	}
+	
+	/**
+	 * @Type(T)
+	 * @ValueType(V)
+	 * @return empty Mutable Pair
+	 */
+	public static GENERIC_KEY_VALUE_BRACES PAIR KEY_VALUE_GENERIC_TYPE mutable() {
+		return new MUTABLE_PAIRKV_BRACES();
+	}
+	
+	/**
+	 * @param key the key that should be in the pair
+	 * @Type(T)
+	 * @ValueType(V)
+	 * @return Mutable Pair of key
+	 */
+	public static GENERIC_KEY_VALUE_BRACES PAIR KEY_VALUE_GENERIC_TYPE mutableKey(KEY_TYPE key) {
+		return new MUTABLE_PAIRKV_BRACES(key, EMPTY_VALUE);
+	}
+	
+	/**
+	 * @param value the value that should be in the pair
+	 * @Type(T)
+	 * @ValueType(V)
+	 * @return Mutable Pair of value
+	 */
+	public static GENERIC_KEY_VALUE_BRACES PAIR KEY_VALUE_GENERIC_TYPE mutableValue(VALUE_TYPE value) {
+		return new MUTABLE_PAIRKV_BRACES(EMPTY_KEY_VALUE, value);
+	}
+	
+	/**
+	 * @param key the key that should be in the pair
+	 * @param value the value that should be in the pair
+	 * @Type(T)
+	 * @ValueType(V)
+	 * @return Mutable Pair of key and value
+	 */
+	public static GENERIC_KEY_VALUE_BRACES PAIR KEY_VALUE_GENERIC_TYPE mutable(KEY_TYPE key, VALUE_TYPE value) {
+		return new MUTABLE_PAIRKV_BRACES(key, value);
+	}
+	
+	/**
+	 * @param pair the Pair that should be copied
+	 * @Type(T)
+	 * @ValueType(V)
+	 * @return a Mutable Copy of the Provided Pair
+	 */
+	public static GENERIC_KEY_VALUE_BRACES PAIR KEY_VALUE_GENERIC_TYPE mutable(PAIR KEY_VALUE_GENERIC_TYPE pair) {
+		return new MUTABLE_PAIRKV_BRACES(pair.ENTRY_KEY(), pair.ENTRY_VALUE());
+	}
+	
+	/**
+	 * Sets the Key of the Pair.
+	 * @param key the key that should be set.
+	 * @return self or a new Pair instance with the new key. (Map.Entry may throw error)
+	 */
+	public PAIR KEY_VALUE_GENERIC_TYPE KEY_ENTRY(KEY_TYPE key);
+	/**
+	 * @return the Key of the Pair
+	 */
+	public KEY_TYPE ENTRY_KEY();
+	
+	/**
+	 * Sets the Value of the Pair.
+	 * @param value the value that should be set.
+	 * @return self or a new Pair instance with the new value. (Map.Entry may throw error)
+	 */	
+	public PAIR KEY_VALUE_GENERIC_TYPE VALUE_ENTRY(VALUE_TYPE value);
+	
+	/**
+	 * @return the Value of the Pair
+	 */
+	public VALUE_TYPE ENTRY_VALUE();
+	
+	/**
+	 * Sets key and value of the Pair
+	 * @param key the key that should be set.
+	 * @param value the value that should be set.
+	 * @return self or a new Pair instance with the new key and value. (Map.Entry may throw error)
+	 */
+	public PAIR KEY_VALUE_GENERIC_TYPE set(KEY_TYPE key, VALUE_TYPE value);
+	
+	/**
+	 * Clones the Pair if it is mutable.
+	 * @return a New Mutable Instance if it is mutable
+	 */
+	public PAIR KEY_VALUE_GENERIC_TYPE shallowCopy();
+}
\ No newline at end of file
diff --git a/src/builder/resources/speiger/assets/collections/templates/misc/pairs/impl/ImmutablePair.template b/src/builder/resources/speiger/assets/collections/templates/misc/pairs/impl/ImmutablePair.template
new file mode 100644
index 00000000..0f4a4fc2
--- /dev/null
+++ b/src/builder/resources/speiger/assets/collections/templates/misc/pairs/impl/ImmutablePair.template
@@ -0,0 +1,61 @@
+package speiger.src.collections.PACKAGE.misc.pairs.impl;
+
+import speiger.src.collections.PACKAGE.misc.pairs.PAIR;
+
+/**
+ * Mutable Pair Implementation that
+ * @Type(T)
+ * @ValueType(V)
+ */
+public class IMMUTABLE_PAIR KEY_VALUE_GENERIC_TYPE implements PAIR KEY_VALUE_GENERIC_TYPE
+{
+	protected final KEY_TYPE key;
+	protected final VALUE_TYPE value;
+	
+	/**
+	 * Default Constructor
+	 */
+	public IMMUTABLE_PAIR() {
+		this(EMPTY_KEY_VALUE, EMPTY_VALUE);
+	}
+	
+	/**
+	 * Key/Value Constructur
+	 * @param key the key of the Pair
+	 * @param value the value of the Pair
+	 */
+	public IMMUTABLE_PAIR(KEY_TYPE key, VALUE_TYPE value) {
+		this.key = key;
+		this.value = value;
+	}
+	
+	@Override
+	public PAIR KEY_VALUE_GENERIC_TYPE KEY_ENTRY(KEY_TYPE key) {
+		return new IMMUTABLE_PAIRKV_BRACES(key, value);
+	}
+	
+	@Override
+	public KEY_TYPE ENTRY_KEY() {
+		return key;
+	}
+	
+	@Override
+	public PAIR KEY_VALUE_GENERIC_TYPE VALUE_ENTRY(VALUE_TYPE value) {
+		return new IMMUTABLE_PAIRKV_BRACES(key, value);
+	}
+	
+	@Override
+	public VALUE_TYPE ENTRY_VALUE() {
+		return value;
+	}
+	
+	@Override
+	public PAIR KEY_VALUE_GENERIC_TYPE set(KEY_TYPE key, VALUE_TYPE value) {
+		return new IMMUTABLE_PAIRKV_BRACES(key, value);
+	}
+	
+	@Override
+	public PAIR KEY_VALUE_GENERIC_TYPE shallowCopy() {
+		return this;
+	}
+}
\ No newline at end of file
diff --git a/src/builder/resources/speiger/assets/collections/templates/misc/pairs/impl/MutablePair.template b/src/builder/resources/speiger/assets/collections/templates/misc/pairs/impl/MutablePair.template
new file mode 100644
index 00000000..2c488375
--- /dev/null
+++ b/src/builder/resources/speiger/assets/collections/templates/misc/pairs/impl/MutablePair.template
@@ -0,0 +1,63 @@
+package speiger.src.collections.PACKAGE.misc.pairs.impl;
+
+import speiger.src.collections.PACKAGE.misc.pairs.PAIR;
+
+/**
+ * Mutable Pair Implementation that
+ * @Type(T)
+ * @ValueType(V)
+ */
+public class MUTABLE_PAIR KEY_VALUE_GENERIC_TYPE implements PAIR KEY_VALUE_GENERIC_TYPE
+{
+	protected KEY_TYPE key;
+	protected VALUE_TYPE value;
+	
+	/**
+	 * Default Constructor
+	 */
+	public MUTABLE_PAIR() {}
+	
+	/**
+	 * Key/Value Constructur
+	 * @param key the key of the Pair
+	 * @param value the value of the Pair
+	 */
+	public MUTABLE_PAIR(KEY_TYPE key, VALUE_TYPE value) {
+		this.key = key;
+		this.value = value;
+	}
+	
+	@Override
+	public PAIR KEY_VALUE_GENERIC_TYPE KEY_ENTRY(KEY_TYPE key) {
+		this.key = key;
+		return this;
+	}
+	
+	@Override
+	public KEY_TYPE ENTRY_KEY() {
+		return key;
+	}
+	
+	@Override
+	public PAIR KEY_VALUE_GENERIC_TYPE VALUE_ENTRY(VALUE_TYPE value) {
+		this.value = value;
+		return this;
+	}
+	
+	@Override
+	public VALUE_TYPE ENTRY_VALUE() {
+		return value;
+	}
+	
+	@Override
+	public PAIR KEY_VALUE_GENERIC_TYPE set(KEY_TYPE key, VALUE_TYPE value) {
+		this.key = key;
+		this.value = value;
+		return this;
+	}
+	
+	@Override
+	public PAIR KEY_VALUE_GENERIC_TYPE shallowCopy() {
+		return PAIR.mutable(key, value);
+	}
+}
\ No newline at end of file