diff --git a/grib_api-1.27.0-jasper3-use-wrapper-entry-point.patch b/grib_api-1.27.0-jasper3-use-wrapper-entry-point.patch
new file mode 100644
index 0000000..23a5f63
--- /dev/null
+++ b/grib_api-1.27.0-jasper3-use-wrapper-entry-point.patch
@@ -0,0 +1,74 @@
+diff -urp -x '*.log' -x '*~' -x .libs -x '*.o' grib_api-1.27.0-Source.old/src/grib_jasper_encoding.c grib_api-1.27.0-Source/src/grib_jasper_encoding.c
+--- grib_api-1.27.0-Source.old/src/grib_jasper_encoding.c	2022-02-15 00:16:26.351324799 +0900
++++ grib_api-1.27.0-Source/src/grib_jasper_encoding.c	2022-02-15 00:49:05.207494711 +0900
+@@ -31,14 +31,14 @@ int grib_jasper_decode(grib_context *c,u
+     jas_matrix_t *matrix = NULL;
+     jas_image_cmpt_t *p;
+     int i,j,k;
+-
++    jas_conf_clear(); jas_conf_set_max_mem_usage(jas_get_total_mem_size()); jas_init_library(); jas_init_thread();
+     jpeg = jas_stream_memopen((char*)buf,*buflen);
+     if(!jpeg) {
+         code = GRIB_DECODING_ERROR;
+         goto cleanup;
+     }
+ 
+-    image = jpc_decode(jpeg,NULL);
++    image = jas_image_decode (jpeg, -1, 0);
+     if(!image) {
+         code = GRIB_DECODING_ERROR;
+         goto cleanup;
+@@ -73,7 +73,7 @@ cleanup:
+     if(matrix) jas_matrix_destroy(matrix);
+     if(image)  jas_image_destroy(image);
+     if(jpeg)   jas_stream_close(jpeg);
+-
++    jas_cleanup_thread(); jas_cleanup_library();
+     return code;
+ }
+ 
+@@ -90,6 +90,7 @@ int grib_jasper_encode(grib_context *c,
+     long no_values = helper->no_values;
+     long bits8;
+     int i;
++    int fmt;
+ 
+     size_t buflen = 0;
+     unsigned char *encoded = NULL;
+@@ -150,7 +151,7 @@ int grib_jasper_encode(grib_context *c,
+         }
+     }
+ 
+-    /*jas_init();*/
++    jas_conf_clear(); jas_conf_set_max_mem_usage(jas_get_total_mem_size()); jas_init_library(); jas_init_thread();
+ 
+     opts[0] = 0;
+ 
+@@ -174,7 +175,8 @@ int grib_jasper_encode(grib_context *c,
+     cmpt.stream_    = istream;
+ 
+     jpcstream       = jas_stream_memopen((char*)helper->jpeg_buffer,helper->buffer_size);
+-    jaserr          = jpc_encode(&image,jpcstream,opts);
++    fmt = jas_image_strtofmt("jpc");
++    jaserr          = jas_image_encode(&image, jpcstream, fmt, opts);
+ 
+     if(jaserr != 0) {
+         /* increase the number of guard bits */
+@@ -186,7 +188,7 @@ int grib_jasper_encode(grib_context *c,
+         istream         = jas_stream_memopen((char *)encoded,buflen);
+         cmpt.stream_    = istream;
+         jpcstream       = jas_stream_memopen((char*)helper->jpeg_buffer,helper->buffer_size);
+-        jaserr          = jpc_encode(&image,jpcstream,opts);
++        jaserr          = jas_image_encode(&image, jpcstream, fmt, opts);
+     }
+ 
+     if ( jaserr != 0 ) {
+@@ -203,7 +205,7 @@ cleanup:
+     grib_context_free(c,encoded);
+     if(istream)   jas_stream_close(istream);
+     if(jpcstream) jas_stream_close(jpcstream);
+-
++    jas_cleanup_thread(); jas_cleanup_library();
+     return code;
+ }
+ 
diff --git a/grib_api.spec b/grib_api.spec
index e0b2e38..98c68e9 100644
--- a/grib_api.spec
+++ b/grib_api.spec
@@ -1,6 +1,6 @@
 Name:           grib_api
 Version:        1.27.0
-Release:        14%{?dist}
+Release:        15%{?dist}
 Summary:        WMO FM-92 GRIB (v1,v2) interface accessible from C and FORTRAN programs
 
 License:        ASL 2.0
@@ -16,6 +16,11 @@ Patch1:         grib_api-extern.patch
 # add support jasper-2
 # https://software.ecmwf.int/issues/browse/SUP-1849
 Patch2:         grib_api-jasper-2.patch
+# jasper3 now hides internal encoder / decoder. Use wrapper entry point
+# c.f. https://github.com/jasper-software/jasper/commit/5fe57ac5829ec31396e7eaab59a688da014660af
+# Also, now with jasper3, calling jas_stream_memopen (for example) always needs jasper
+# library initialization
+Patch3:         grib_api-1.27.0-jasper3-use-wrapper-entry-point.patch
 BuildRequires:  gcc-gfortran
 BuildRequires:  netcdf-devel
 BuildRequires:  jasper-devel
@@ -55,6 +60,7 @@ tar xf %SOURCE1
 %patch0 -p1 -b .link
 %patch1 -p1 -b .extern
 %patch2 -p1 -b .jasper2
+%patch3 -p1 -b .jasper3
 
 # Fix rpath issues by using Fedora's libtool
 rm m4/libtool.m4
@@ -98,7 +104,7 @@ chmod +x %{buildroot}%{_datadir}/%{name}/definitions/installDefinitions.sh
 %check
 # ls.sh test is failing
 # https://software.ecmwf.int/issues/browse/SUP-521
-make check || true
+make check
 
 
 %ldconfig_scriptlets
@@ -125,6 +131,9 @@ make check || true
 %{_libdir}/*.a
 
 %changelog
+* Mon Feb 14 2022 Mamoru TASAKA <mtasaka@fedoraproject.org> - 1.27.0-15
+- jasper3: use wrapper entry point for jpeg2000 decoder
+
 * Sun Feb 13 2022 Josef Ridky <jridky@redhat.com> - 1.27.0-14
 - Rebuilt for libjasper.so.6