Fixed missing permissions to defines.inc.php and created ext_lib directory by default

java-gateway/alpine/Dockerfile

@@ -17,6 +17,8 @@ RUN set -eux && \
             -h /var/lib/zabbix/ \
         zabbix && \
     mkdir -p /etc/zabbix/ && \
+    mkdir -p /usr/sbin/zabbix_java/ && \
+    mkdir -p /usr/sbin/zabbix_java/ext_lib/ && \
     apk add --clean-protected --no-cache \
             bash \
             openjdk8-jre-base && \

java-gateway/centos/Dockerfile

@@ -17,6 +17,7 @@ RUN set -eux && \
         zabbix && \
     mkdir -p /etc/zabbix/ && \
     mkdir -p /usr/sbin/zabbix_java/ && \
+    mkdir -p /usr/sbin/zabbix_java/ext_lib/ && \
     dnf --quiet makecache && \
     dnf -y install --setopt=tsflags=nodocs --setopt=install_weak_deps=False --best \
             java-1.8.0-openjdk-headless && \

java-gateway/ubuntu/Dockerfile

@@ -19,6 +19,8 @@ RUN set -eux && \
             --home /var/lib/zabbix/ \
         zabbix && \
     mkdir -p /etc/zabbix/ && \
+    mkdir -p /usr/sbin/zabbix_java/ && \
+    mkdir -p /usr/sbin/zabbix_java/ext_lib/ && \
     apt-get -y update && \
     DEBIAN_FRONTEND=noninteractive apt-get -y --no-install-recommends install \
             openjdk-8-jre-headless && \