src/share/native/java/util/zip/zlib-1.2.3/compress.c

@@ -73,11 +73,11 @@
     err = deflate(&stream, Z_FINISH);
     if (err != Z_STREAM_END) {
         deflateEnd(&stream);
         return err == Z_OK ? Z_BUF_ERROR : err;
     }
-    *destLen = stream.total_out;
+    *destLen = (uLong)stream.total_out;
 
     err = deflateEnd(&stream);
     return err;
 }