java: disable highgui wrapped code

modules/highgui/misc/java/gen_dict.json

-{
-    "const_ignore_list": [
-        "EVENT_.*",
-        "WINDOW_AUTOSIZE",
-        "CV_WND_PROP_",
-        "CV_WINDOW_",
-        "CV_EVENT_",
-        "CV_GUI_",
-        "CV_PUSH_BUTTON",
-        "CV_CHECKBOX",
-        "CV_RADIOBOX",
-        "WINDOW_.+",
-        "WND_PROP_.+"
-    ],
-    "ManualFuncs" : {
-        "Highgui" : {
-            "namedWindow"       : {"j_code" : [""], "jn_code" : [""], "cpp_code" : [""] },
-            "destroyWindow"     : {"j_code" : [""], "jn_code" : [""], "cpp_code" : [""] },
-            "destroyAllWindows" : {"j_code" : [""], "jn_code" : [""], "cpp_code" : [""] },
-            "startWindowThread" : {"j_code" : [""], "jn_code" : [""], "cpp_code" : [""] },
-            "setWindowProperty" : {"j_code" : [""], "jn_code" : [""], "cpp_code" : [""] },
-            "getWindowProperty" : {"j_code" : [""], "jn_code" : [""], "cpp_code" : [""] },
-            "getTrackbarPos"    : {"j_code" : [""], "jn_code" : [""], "cpp_code" : [""] },
-            "setTrackbarPos"    : {"j_code" : [""], "jn_code" : [""], "cpp_code" : [""] },
-            "imshow"            : {"j_code" : [""], "jn_code" : [""], "cpp_code" : [""] },
-            "waitKey"           : {"j_code" : [""], "jn_code" : [""], "cpp_code" : [""] },
-            "moveWindow"        : {"j_code" : [""], "jn_code" : [""], "cpp_code" : [""] },
-            "resizeWindow"      : {"j_code" : [""], "jn_code" : [""], "cpp_code" : [""] }
-        }
-    }
-}

modules/java/generator/gen_java.py

@@ -1151,7 +1151,10 @@ if __name__ == "__main__":
         if os.path.exists(java_test_files_dir):
             copy_java_files(java_test_files_dir, java_test_base_path)
 
-        generator.gen(srcfiles, module, dstdir, jni_path, java_path, common_headers)
+        if len(srcfiles) > 0:
+            generator.gen(srcfiles, module, dstdir, jni_path, java_path, common_headers)
+        else:
+            logging.info("No generated code for module: %s", module)
     generator.finalize(jni_path)
 
     print('Generated files: %d (updated %d)' % (total_files, updated_files))