All the jdks have a -Wuninitialized-const-pointer error due to passing the uninitialized pict_attr to XRenderCreatePicture() for which this is a const argument. This should be harmless because the valuemask is 0, so none of the attributes are read in _XRenderProcessPictureAttributes(). Initializing the attributes to 0 doesn't change that but makes the compiler happy.
On top of that jdk/25 has -Wnontrivial-memcall errors, with an annotation that suggests an explicit cast to void *, which probably just papers over the actual problem... https://github.com/llvm/llvm-project/pull/111434 https://gcc.gnu.org/legacy-ml/gcc-patches/2017-04/msg01571.html * For target hotspot_variant-server_libjvm_objs_resolvedFieldEntry.o: /usr/obj/ports/jdk-25.0.3.6.1/jdk25u-jdk-25.0.3-6-1/src/hotspot/share/oops/resolvedFieldEntry.cpp:49:10: error: first argument in call to 'memset' is a pointer to non-trivially copyable type 'ResolvedFieldEntry' [-Werror,-Wnontrivial-memcall] 49 | memset(this, 0, sizeof(*this)); | ^ /usr/obj/ports/jdk-25.0.3.6.1/jdk25u-jdk-25.0.3-6-1/src/hotspot/share/oops/resolvedFieldEntry.cpp:49:10: note: explicitly cast the pointer to silence this warning 49 | memset(this, 0, sizeof(*this)); | ^ | (void*) Index: 11/Makefile =================================================================== RCS file: /cvs/ports/devel/jdk/11/Makefile,v diff -u -p -r1.70 Makefile --- 11/Makefile 13 May 2026 11:43:13 -0000 1.70 +++ 11/Makefile 20 May 2026 05:53:13 -0000 @@ -13,6 +13,8 @@ PKGNAME= jdk-${PACKAGE_VER} PKGSTEM= jdk-11 EPOCH= 0 +REVISION= 0 + DIST_SUBDIR= jdk DISTNAME= jdk-${VERSION_STR} WRKDIST= ${WRKDIR}/jdk11u-jdk-${BASE_VER}-${BUILD_VER}-${BSD_PORT_REL} Index: 11/patches/patch-src_java_desktop_unix_native_libawt_xawt_java2d_x11_XRBackendNative_c =================================================================== RCS file: 11/patches/patch-src_java_desktop_unix_native_libawt_xawt_java2d_x11_XRBackendNative_c diff -N 11/patches/patch-src_java_desktop_unix_native_libawt_xawt_java2d_x11_XRBackendNative_c --- /dev/null 1 Jan 1970 00:00:00 -0000 +++ 11/patches/patch-src_java_desktop_unix_native_libawt_xawt_java2d_x11_XRBackendNative_c 20 May 2026 05:51:39 -0000 @@ -0,0 +1,14 @@ +error: variable 'pict_attr' is uninitialized when passed as a const pointer argument here [-Werror,-Wuninitialized-const-pointer] + +Index: src/java.desktop/unix/native/libawt_xawt/java2d/x11/XRBackendNative.c +--- src/java.desktop/unix/native/libawt_xawt/java2d/x11/XRBackendNative.c.orig ++++ src/java.desktop/unix/native/libawt_xawt/java2d/x11/XRBackendNative.c +@@ -398,7 +398,7 @@ Java_sun_java2d_xr_XRBackendNative_createPixmap(JNIEnv + JNIEXPORT jint JNICALL + Java_sun_java2d_xr_XRBackendNative_createPictureNative + (JNIEnv *env, jclass cls, jint drawable, jlong formatPtr) { +- XRenderPictureAttributes pict_attr; ++ XRenderPictureAttributes pict_attr = { 0 }; + return XRenderCreatePicture(awt_display, (Drawable) drawable, + (XRenderPictFormat *) jlong_to_ptr(formatPtr), + 0, &pict_attr); Index: 17/Makefile =================================================================== RCS file: /cvs/ports/devel/jdk/17/Makefile,v diff -u -p -r1.41 Makefile --- 17/Makefile 13 May 2026 17:51:09 -0000 1.41 +++ 17/Makefile 20 May 2026 05:53:19 -0000 @@ -13,6 +13,8 @@ PKGNAME= jdk-${PACKAGE_VER} PKGSTEM= jdk-17 EPOCH= 0 +REVISION= 0 + DIST_SUBDIR= jdk DISTNAME= jdk-${VERSION_STR} WRKDIST= ${WRKDIR}/jdk17u-jdk-${BASE_VER}-${BUILD_VER}-${BSD_PORT_REL} Index: 17/patches/patch-src_java_desktop_unix_native_libawt_xawt_java2d_x11_XRBackendNative_c =================================================================== RCS file: 17/patches/patch-src_java_desktop_unix_native_libawt_xawt_java2d_x11_XRBackendNative_c diff -N 17/patches/patch-src_java_desktop_unix_native_libawt_xawt_java2d_x11_XRBackendNative_c --- /dev/null 1 Jan 1970 00:00:00 -0000 +++ 17/patches/patch-src_java_desktop_unix_native_libawt_xawt_java2d_x11_XRBackendNative_c 20 May 2026 05:51:39 -0000 @@ -0,0 +1,14 @@ +error: variable 'pict_attr' is uninitialized when passed as a const pointer argument here [-Werror,-Wuninitialized-const-pointer] + +Index: src/java.desktop/unix/native/libawt_xawt/java2d/x11/XRBackendNative.c +--- src/java.desktop/unix/native/libawt_xawt/java2d/x11/XRBackendNative.c.orig ++++ src/java.desktop/unix/native/libawt_xawt/java2d/x11/XRBackendNative.c +@@ -339,7 +339,7 @@ Java_sun_java2d_xr_XRBackendNative_createPixmap(JNIEnv + JNIEXPORT jint JNICALL + Java_sun_java2d_xr_XRBackendNative_createPictureNative + (JNIEnv *env, jclass cls, jint drawable, jlong formatPtr) { +- XRenderPictureAttributes pict_attr; ++ XRenderPictureAttributes pict_attr = { 0 }; + return XRenderCreatePicture(awt_display, (Drawable) drawable, + (XRenderPictFormat *) jlong_to_ptr(formatPtr), + 0, &pict_attr); Index: 21/Makefile =================================================================== RCS file: /cvs/ports/devel/jdk/21/Makefile,v diff -u -p -r1.16 Makefile --- 21/Makefile 13 May 2026 17:52:30 -0000 1.16 +++ 21/Makefile 20 May 2026 05:53:22 -0000 @@ -13,6 +13,8 @@ PKGNAME= jdk-${PACKAGE_VER} PKGSTEM= jdk-21 EPOCH= 0 +REVISION= 0 + DIST_SUBDIR= jdk DISTNAME= jdk-${VERSION_STR} WRKDIST= ${WRKDIR}/jdk21u-jdk-${BASE_VER}-${BUILD_VER}-${BSD_PORT_REL} Index: 21/patches/patch-src_java_desktop_unix_native_libawt_xawt_java2d_x11_XRBackendNative_c =================================================================== RCS file: 21/patches/patch-src_java_desktop_unix_native_libawt_xawt_java2d_x11_XRBackendNative_c diff -N 21/patches/patch-src_java_desktop_unix_native_libawt_xawt_java2d_x11_XRBackendNative_c --- /dev/null 1 Jan 1970 00:00:00 -0000 +++ 21/patches/patch-src_java_desktop_unix_native_libawt_xawt_java2d_x11_XRBackendNative_c 20 May 2026 05:51:39 -0000 @@ -0,0 +1,14 @@ +error: variable 'pict_attr' is uninitialized when passed as a const pointer argument here [-Werror,-Wuninitialized-const-pointer] + +Index: src/java.desktop/unix/native/libawt_xawt/java2d/x11/XRBackendNative.c +--- src/java.desktop/unix/native/libawt_xawt/java2d/x11/XRBackendNative.c.orig ++++ src/java.desktop/unix/native/libawt_xawt/java2d/x11/XRBackendNative.c +@@ -339,7 +339,7 @@ Java_sun_java2d_xr_XRBackendNative_createPixmap(JNIEnv + JNIEXPORT jint JNICALL + Java_sun_java2d_xr_XRBackendNative_createPictureNative + (JNIEnv *env, jclass cls, jint drawable, jlong formatPtr) { +- XRenderPictureAttributes pict_attr; ++ XRenderPictureAttributes pict_attr = { 0 }; + return XRenderCreatePicture(awt_display, (Drawable) drawable, + (XRenderPictFormat *) jlong_to_ptr(formatPtr), + 0, &pict_attr); Index: 25/Makefile =================================================================== RCS file: /cvs/ports/devel/jdk/25/Makefile,v diff -u -p -r1.9 Makefile --- 25/Makefile 13 May 2026 14:32:05 -0000 1.9 +++ 25/Makefile 20 May 2026 05:53:28 -0000 @@ -13,6 +13,8 @@ PKGNAME= jdk-${PACKAGE_VER} PKGSTEM= jdk-25 EPOCH= 0 +REVISION= 0 + DIST_SUBDIR= jdk DISTNAME= jdk-${VERSION_STR} WRKDIST= ${WRKDIR}/jdk25u-jdk-${BASE_VER}-${BUILD_VER}-${BSD_PORT_REL} Index: 25/patches/patch-src_hotspot_share_oops_resolvedFieldEntry_cpp =================================================================== RCS file: 25/patches/patch-src_hotspot_share_oops_resolvedFieldEntry_cpp diff -N 25/patches/patch-src_hotspot_share_oops_resolvedFieldEntry_cpp --- /dev/null 1 Jan 1970 00:00:00 -0000 +++ 25/patches/patch-src_hotspot_share_oops_resolvedFieldEntry_cpp 20 May 2026 05:51:39 -0000 @@ -0,0 +1,14 @@ +error: first argument in call to 'memset' is a pointer to non-trivially copyable type 'ResolvedFieldEntry' [-Werror,-Wnontrivial-memcall] + +Index: src/hotspot/share/oops/resolvedFieldEntry.cpp +--- src/hotspot/share/oops/resolvedFieldEntry.cpp.orig ++++ src/hotspot/share/oops/resolvedFieldEntry.cpp +@@ -46,7 +46,7 @@ void ResolvedFieldEntry::print_on(outputStream* st) co + #if INCLUDE_CDS + void ResolvedFieldEntry::remove_unshareable_info() { + u2 saved_cpool_index = _cpool_index; +- memset(this, 0, sizeof(*this)); ++ memset((void *)this, 0, sizeof(*this)); + _cpool_index = saved_cpool_index; + } + Index: 25/patches/patch-src_hotspot_share_oops_resolvedMethodEntry_cpp =================================================================== RCS file: 25/patches/patch-src_hotspot_share_oops_resolvedMethodEntry_cpp diff -N 25/patches/patch-src_hotspot_share_oops_resolvedMethodEntry_cpp --- /dev/null 1 Jan 1970 00:00:00 -0000 +++ 25/patches/patch-src_hotspot_share_oops_resolvedMethodEntry_cpp 20 May 2026 05:51:39 -0000 @@ -0,0 +1,20 @@ +error: first argument in call to 'memset' is a pointer to non-trivially copyable type 'ResolvedMethodEntry' [-Werror,-Wnontrivial-memcall] + +Index: src/hotspot/share/oops/resolvedMethodEntry.cpp +--- src/hotspot/share/oops/resolvedMethodEntry.cpp.orig ++++ src/hotspot/share/oops/resolvedMethodEntry.cpp +@@ -40,12 +40,12 @@ void ResolvedMethodEntry::reset_entry() { + if (has_resolved_references_index()) { + u2 saved_resolved_references_index = _entry_specific._resolved_references_index; + u2 saved_cpool_index = _cpool_index; +- memset(this, 0, sizeof(*this)); ++ memset((void *)this, 0, sizeof(*this)); + set_resolved_references_index(saved_resolved_references_index); + _cpool_index = saved_cpool_index; + } else { + u2 saved_cpool_index = _cpool_index; +- memset(this, 0, sizeof(*this)); ++ memset((void *)this, 0, sizeof(*this)); + _cpool_index = saved_cpool_index; + } + } Index: 25/patches/patch-src_java_desktop_unix_native_libawt_xawt_java2d_x11_XRBackendNative_c =================================================================== RCS file: 25/patches/patch-src_java_desktop_unix_native_libawt_xawt_java2d_x11_XRBackendNative_c diff -N 25/patches/patch-src_java_desktop_unix_native_libawt_xawt_java2d_x11_XRBackendNative_c --- /dev/null 1 Jan 1970 00:00:00 -0000 +++ 25/patches/patch-src_java_desktop_unix_native_libawt_xawt_java2d_x11_XRBackendNative_c 20 May 2026 05:51:39 -0000 @@ -0,0 +1,14 @@ +error: variable 'pict_attr' is uninitialized when passed as a const pointer argument here [-Werror,-Wuninitialized-const-pointer] + +Index: src/java.desktop/unix/native/libawt_xawt/java2d/x11/XRBackendNative.c +--- src/java.desktop/unix/native/libawt_xawt/java2d/x11/XRBackendNative.c.orig ++++ src/java.desktop/unix/native/libawt_xawt/java2d/x11/XRBackendNative.c +@@ -339,7 +339,7 @@ Java_sun_java2d_xr_XRBackendNative_createPixmap(JNIEnv + JNIEXPORT jint JNICALL + Java_sun_java2d_xr_XRBackendNative_createPictureNative + (JNIEnv *env, jclass cls, jint drawable, jlong formatPtr) { +- XRenderPictureAttributes pict_attr; ++ XRenderPictureAttributes pict_attr = { 0 }; + return XRenderCreatePicture(awt_display, (Drawable) drawable, + (XRenderPictFormat *) jlong_to_ptr(formatPtr), + 0, &pict_attr);
