Java: fixing request scheme using 'tls' flag.

src/java/nginx/unit/Request.java

@@ -920,7 +920,7 @@ public class Request implements HttpServletRequest, DynamicPathRequest
     @Override
     public String getScheme()
     {
-        log("getScheme");
+        trace("getScheme");
 
         return getScheme(req_ptr);
     }

src/java/nxt_jni_Request.c

@@ -542,7 +542,11 @@ nxt_java_Request_getRemotePort(JNIEnv *env, jclass cls, jlong req_ptr)
 static jstring JNICALL
 nxt_java_Request_getScheme(JNIEnv *env, jclass cls, jlong req_ptr)
 {
-    return (*env)->NewStringUTF(env, "http");
+    nxt_unit_request_t  *r;
+
+    r = nxt_jlong2ptr(req_ptr);
+
+    return (*env)->NewStringUTF(env, r->tls ? "https" : "http");
 }