I incorporated two patches into my local meta-java layer. Then openjre-14 builds also!

diff --git a/recipes-core/openjdk/openjdk-14-common.inc b/recipes-core/openjdk/openjdk-14-common.inc

index 36451b8..df99626 100644

--- a/recipes-core/openjdk/openjdk-14-common.inc

+++ b/recipes-core/openjdk/openjdk-14-common.inc

@@ -30,6 +30,8 @@ SRC_URI = "\

     https://hg.openjdk.java.net/jdk-updates/jdk14u/archive/jdk-${PV}-ga.tar.bz2;name=jdk \

     file://0001-make-autoconf-remove-hard-dependency-on-cups.patch \

     file://0002-make-autoconf-toolchain-remove-invalid-compiler-chec.patch \

+    file://0066-autoconf-fix-build-aux-path.patch \

+    file://0067-sysctl-path-fix.patch \

     "



cat patches-openjdk-14/0066-autoconf-fix-build-aux-path.patch 

diff --color -Nur jdk14u-jdk-14.0.1-ga.ORIG/make/autoconf/configure.ac jdk14u-jdk-14.0.1-ga/make/autoconf/configure.ac

--- jdk14u-jdk-14.0.1-ga.ORIG/make/autoconf/configure.ac 2020-03-05 13:10:05.000000000 +0100

+++ jdk14u-jdk-14.0.1-ga/make/autoconf/configure.ac 2021-03-20 15:59:41.985648025 +0100

@@ -33,7 +33,7 @@

 AC_PREREQ([2.69])

 AC_INIT(OpenJDK, openjdk, build-dev@openjdk.java.net,,http://openjdk.java.net)

 

-AC_CONFIG_AUX_DIR([$TOPDIR/make/autoconf/build-aux])

+AC_CONFIG_AUX_DIR([build-aux])

 m4_include([build-aux/pkg.m4])

 

 

 # Include these first...



cat patches-openjdk-14/0067-sysctl-path-fix.patch 

diff --color -Nur jdk14u-jdk-14.0.1-ga.ORIG/src/jdk.incubator.jpackage/unix/native/libapplauncher/PosixPlatform.cpp jdk14u-jdk-14.0.1-ga/src/jdk.incubator.jpackage/unix/native/libapplauncher/PosixPlatform.cpp

--- jdk14u-jdk-14.0.1-ga.ORIG/src/jdk.incubator.jpackage/unix/native/libapplauncher/PosixPlatform.cpp 2020-03-05 13:10:05.000000000 +0100

+++ jdk14u-jdk-14.0.1-ga/src/jdk.incubator.jpackage/unix/native/libapplauncher/PosixPlatform.cpp 2021-03-20 19:15:37.959412799 +0100

@@ -33,7 +33,7 @@

 #include <stdbool.h>

 #include <sys/types.h>

 #include <unistd.h>

-#include <sys/sysctl.h>

+#include <linux/sysctl.h>

 #include <sys/file.h>

 #include <sys/stat.h>

 #include <sys/wait.h>