v6.20

+ DietPi-Software | Java: "ca-certificates-java" is now dependency of "openjdk-8-jre-headless" on all distro versions, so do not manually install
+ DietPi-Software | Java: "ca-certificates-java" dependencies now allow Java 8 only on all distro versions, Java 9+10 have been dropped mostly, so we don't require reinstall workaround anymore
+ DietPi-Software | Java: Install headless packages on Jessie as well
+ DietPi-Software | Java: Add all Java related packages to backports priority pin on Jessie, to allow automated APT upgrades for all of them

dietpi/dietpi-software

@@ -4338,8 +4338,7 @@ _EOF_
 
 		fi
 
-		#PIHOLE
-		software_id=93
+		software_id=93 # Pi-hole
 		if (( ${aSOFTWARE_INSTALL_STATE[$software_id]} == 1 )); then
 
 			Banner_Installing
@@ -6859,7 +6858,7 @@ Pin-Priority: -1' > /etc/apt/preferences.d/dietpi-docker_fix
 
 		fi
 
-		software_id=8
+		software_id=8 # Java
 		if (( ${aSOFTWARE_INSTALL_STATE[$software_id]} == 1 )); then
 
 			Banner_Installing
@@ -6868,19 +6867,16 @@ Pin-Priority: -1' > /etc/apt/preferences.d/dietpi-docker_fix
 			if (( $G_DISTRO == 3 )); then
 
 				cat << _EOF_ > /etc/apt/preferences.d/99-dietpi-openjdk-8-jdk
-Package: openjdk-8-jdk
+Package: ca-certificates-java java-common openjdk-8-*
 Pin: release a=jessie-backports
 Pin-Priority: 990
 _EOF_
 
-				G_AGI openjdk-8-jdk -t jessie-backports
+				G_AGI openjdk-8-jre-headless openjdk-8-jdk-headless -t jessie-backports
 
 			else
 
-				# - Workaround to allow install: https://github.com/Fourdee/DietPi/issues/1340#issuecomment-389902031
-				local packages='ca-certificates-java openjdk-8-jre-headless openjdk-8-jdk-headless'
-				apt-get install -y -qq $packages
-				G_AGI $packages
+				G_AGI openjdk-8-jre-headless openjdk-8-jdk-headless
 
 			fi
 
@@ -9323,7 +9319,7 @@ ExecStart=$(which java) -Xmx$airsonic_memory_max -Dairsonic.home=$G_FP_DIETPI_US
 WantedBy=multi-user.target
 _EOF_
 
-			#Symlink ffmpeg to subsonic transcoder
+			#Symlink FFmpeg to Airsonic transcoder
 			ln -sf $(which ffmpeg) $G_FP_DIETPI_USERDATA/airsonic/transcode
 
 			#Grab our test media for user
@@ -9346,15 +9342,15 @@ _EOF_
 
 			cat << _EOF_ > /etc/default/subsonic
 SUBSONIC_USER=root
-SUBSONIC_ARGS="--quiet --pidfile=/run/subsonic.pid --max-memory=$subsonic_memory_max --default-music-folder=$G_FP_DIETPI_USERDATA/$FOLDER_MUSIC --default-podcast-folder=$G_FP_DIETPI_USERDATA/$FOLDER_MUSIC --default-playlist-folder=$G_FP_DIETPI_USERDATA/$FOLDER_MUSIC"
+SUBSONIC_ARGS='--quiet --pidfile=/run/subsonic.pid --max-memory=$subsonic_memory_max --default-music-folder=$G_FP_DIETPI_USERDATA/$FOLDER_MUSIC --default-podcast-folder=$G_FP_DIETPI_USERDATA/$FOLDER_MUSIC --default-playlist-folder=$G_FP_DIETPI_USERDATA/$FOLDER_MUSIC'
 _EOF_
 
+			#Symlink FFmpeg to Subsonic transcoder
+			ln -fs $(which ffmpeg) /var/subsonic/transcode
+
 			#Grab our test media for user
 			Download_Test_Media
 
-			#Symlink ffmpeg to subsonic transcoder
-			ln -fs $(which ffmpeg) /var/subsonic/transcode
-
 		fi
 
 		#WEBIOPI
@@ -14651,8 +14647,8 @@ _EOF_
 
 			Banner_Uninstalling
 
-			apt-mark auto $(dpkg --get-selections default-jre* default-jdk* openjdk-8-jre* openjdk-8-jdk* | awk '{print $1}') ca-certificates-java
-			rm /etc/apt/preferences.d/99-dietpi-openjdk-8-jdk &> /dev/null
+			apt-mark auto $(dpkg --get-selections default-jre* default-jdk* openjdk-* | awk '{print $1}') ca-certificates-java
+			[[ -f /etc/apt/preferences.d/99-dietpi-openjdk-8-jdk ]] && rm /etc/apt/preferences.d/99-dietpi-openjdk-8-jdk
 
 		fi