JNI interface changed for TJ class, since it only has static methods now

java/TJ.h

@@ -39,7 +39,7 @@ extern "C" {
  * Signature: (II)J
  */
 JNIEXPORT jlong JNICALL Java_TJ_BUFSIZE
-  (JNIEnv *, jobject, jint, jint);
+  (JNIEnv *, jclass, jint, jint);
 
 #ifdef __cplusplus
 }

turbojpeg-jni.c

@@ -50,7 +50,7 @@
 }
 
 JNIEXPORT jlong JNICALL Java_TJ_BUFSIZE
-	(JNIEnv *env, jobject obj, jint width, jint height)
+	(JNIEnv *env, jclass cls, jint width, jint height)
 {
 	return TJBUFSIZE(width, height);
 }