diff --git a/Sources/JNI/JNIFields.swift b/Sources/JNI/JNIFields.swift
index 8e86fb9..d823477 100644
--- a/Sources/JNI/JNIFields.swift
+++ b/Sources/JNI/JNIFields.swift
@@ -49,6 +49,13 @@ public extension JNI {
         return result
     }
 
+    public func GetLongField(of javaObject: JavaObject, id: JavaFieldID) throws -> JavaLong {
+        let _env = self._env
+        let result = _env.pointee.pointee.GetLongField(_env, javaObject, id)
+        try checkAndThrowOnJNIError()
+        return result
+    }
+
     public func GetDoubleField(of javaObject: JavaObject, id: JavaFieldID) throws -> JavaDouble {
         let _env = self._env
         let result = _env.pointee.pointee.GetDoubleField(_env, javaObject, id)
@@ -86,6 +93,13 @@ public extension JNI {
         return result
     }
 
+    public func GetStaticLongField(of javaClass: JavaClass, id: JavaFieldID) throws -> JavaLong {
+        let _env = self._env
+        let result = _env.pointee.pointee.GetStaticLongField(_env, javaClass, id)
+        try checkAndThrowOnJNIError()
+        return result
+    }
+
     public func GetStaticDoubleField(of javaClass: JavaClass, id: JavaFieldID) throws -> JavaDouble {
         let _env = self._env
         let result = _env.pointee.pointee.GetStaticDoubleField(_env, javaClass, id)
diff --git a/Sources/JNI/JNIMethods.swift b/Sources/JNI/JNIMethods.swift
index 4a9c5a1..37414c4 100644
--- a/Sources/JNI/JNIMethods.swift
+++ b/Sources/JNI/JNIMethods.swift
@@ -123,6 +123,14 @@ extension JNI {
         return result
     }
 
+    public func CallLongMethod(_ method: JavaMethodID, on object: JavaObject, parameters: [JavaParameter]) throws -> JavaLong {
+        let _env = self._env
+        var methodArgs = parameters
+        let result = _env.pointee.pointee.CallLongMethod(_env, object, method, &methodArgs)
+        try checkAndThrowOnJNIError()
+        return result
+    }
+
     public func CallDoubleMethod(_ method: JavaMethodID, on object: JavaObject, parameters: [JavaParameter]) throws -> JavaDouble {
         let _env = self._env
         var methodArgs = parameters
@@ -168,6 +176,14 @@ extension JNI {
         return result
     }
 
+    public func CallStaticLongMethod(_ method: JavaMethodID, on javaClass: JavaClass, parameters: [JavaParameter]) throws -> JavaLong {
+        let _env = self._env
+        var methodArgs = parameters
+        let result = _env.pointee.pointee.CallStaticLongMethodA(_env, javaClass, method, &methodArgs)
+        try checkAndThrowOnJNIError()
+        return result
+    }
+
     public func CallStaticFloatMethod(_ method: JavaMethodID, on javaClass: JavaClass, parameters: [JavaParameter]) throws -> JavaFloat {
         let _env = self._env
         var methodArgs = parameters
diff --git a/Sources/JNI/JavaParameterConvertible+Primitives.swift b/Sources/JNI/JavaParameterConvertible+Primitives.swift
index c324e32..033f456 100644
--- a/Sources/JNI/JavaParameterConvertible+Primitives.swift
+++ b/Sources/JNI/JavaParameterConvertible+Primitives.swift
@@ -107,3 +107,29 @@ extension Float: JavaParameterConvertible, JavaInitializableFromMethod, JavaInit
         return try jni.GetFloatField(of: javaObject, id: fieldID)
     }
 }
+
+// JavaLong aka Int64
+
+extension JavaLong: JavaParameterConvertible, JavaInitializableFromMethod, JavaInitializableFromField {
+    public static let asJNIParameterString = "J"
+
+    public func toJavaParameter() -> JavaParameter {
+        return JavaParameter(long: self)
+    }
+
+    public static func fromStaticField(_ fieldID: JavaFieldID, of javaClass: JavaClass) throws -> JavaLong {
+        return try JavaLong(jni.GetStaticLongField(of: javaClass, id: fieldID))
+    }
+
+    public static func fromMethod(calling methodID: JavaMethodID, on object: JavaObject, args: [JavaParameter]) throws -> JavaLong {
+        return try jni.CallLongMethod(methodID, on: object, parameters: args)
+    }
+
+    public static func fromStaticMethod(calling methodID: JavaMethodID, on javaClass: JavaClass, args: [JavaParameter]) throws -> JavaLong {
+        return try jni.CallStaticLongMethod(methodID, on: javaClass, parameters: args)
+    }
+
+    public static func fromField(_ fieldID: JavaFieldID, on javaObject: JavaObject) throws -> JavaLong {
+        return try jni.GetLongField(of: javaObject, id: fieldID)
+    }
+}