diff --git a/functions/java-jre.bash b/functions/java-jre.bash
index 9461fabf7..b86b523f4 100644
--- a/functions/java-jre.bash
+++ b/functions/java-jre.bash
@@ -31,16 +31,14 @@ java_install() {
 ##    adoptium_fetch_apt()
 ##
 adoptium_fetch_apt() {
-  if ! apt-cache show "temurin-${1}-jre" &> /dev/null; then
-    local keyName="adoptium"
+  local keyName="adoptium"
 
-    if ! add_keys "https://packages.adoptium.net/artifactory/api/gpg/key/public" "$keyName"; then return 1; fi
-    cond_redirect apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 843C48A565F8F04B
+  if ! add_keys "https://packages.adoptium.net/artifactory/api/gpg/key/public" "$keyName"; then return 1; fi
+  cond_redirect apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 843C48A565F8F04B
 
-    echo -n "$(timestamp) [openHABian] Adding Adoptium repository to apt... "
-    if ! echo "deb https://packages.adoptium.net/artifactory/deb ${osrelease:-bookworm} main" > /etc/apt/sources.list.d/adoptium.list; then echo "FAILED"; return 1; fi
-    if cond_redirect apt-get update; then echo "OK"; else echo "FAILED (update apt lists)"; return 1; fi
-  fi
+  echo -n "$(timestamp) [openHABian] Adding Adoptium repository to apt... "
+  if ! echo "deb https://packages.adoptium.net/artifactory/deb ${osrelease:-bookworm} main" > /etc/apt/sources.list.d/adoptium.list; then echo "FAILED"; return 1; fi
+  if cond_redirect apt-get update; then echo "OK"; else echo "FAILED (update apt lists)"; return 1; fi
 
   echo -n "$(timestamp) [openHABian] Fetching Adoptium Eclipse Temurin JDK... "
   if cond_redirect apt-get install --download-only --yes "temurin-${1}-jre"; then echo "OK"; else echo "FAILED"; return 1; fi
@@ -56,7 +54,7 @@ adoptium_install_apt() {
     echo -n "$(timestamp) [openHABian] Installing Adoptium Eclipse Temurin JDK... "
     cond_redirect java_alternatives_reset
     if cond_redirect apt-get install --yes -o DPkg::Lock::Timeout="$APTTIMEOUT" "temurin-${1}-jre"; then echo "OK"; else echo "FAILED"; return 1; fi
-  elif dpkg -s "temurin-${1}-jre" &> /dev/null; then
+  else
     echo -n "$(timestamp) [openHABian] Reconfiguring Adoptium Eclipse Temurin JDK... "
     cond_redirect java_alternatives_reset
     if cond_redirect dpkg-reconfigure "temurin-${1}-jre"; then echo "OK"; else echo "FAILED"; return 1; fi
@@ -73,16 +71,14 @@ adoptium_install_apt() {
 ##    openjdk_fetch_apt()
 ##
 openjdk_fetch_apt() {
-  if ! apt-cache show "openjdk-${1}-jre-headless" &> /dev/null; then
-    echo "deb http://deb.debian.org/debian/ unstable main" > /etc/apt/sources.list.d/java.list
-    cond_redirect apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 04EE7237B7D453EC
-    cond_redirect apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 648ACFD622F3D138
+  echo "deb http://deb.debian.org/debian/ unstable main" > /etc/apt/sources.list.d/java.list
+  cond_redirect apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 04EE7237B7D453EC
+  cond_redirect apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 648ACFD622F3D138
 
-    # important to avoid release mixing:
-    # prevent RPi from using the Debian distro for normal Raspbian packages
-    echo -e "Package: *\\nPin: release a=unstable\\nPin-Priority: 90\\n" > /etc/apt/preferences.d/limit-unstable
-    cond_redirect apt-get update
-  fi
+  # important to avoid release mixing:
+  # prevent RPi from using the Debian distro for normal Raspbian packages
+  echo -e "Package: *\\nPin: release a=unstable\\nPin-Priority: 90\\n" > /etc/apt/preferences.d/limit-unstable
+  cond_redirect apt-get update
 
   dpkg --configure -a
   echo -n "$(timestamp) [openHABian] Fetching OpenJDK ${1}... "
@@ -99,7 +95,7 @@ openjdk_install_apt() {
     echo -n "$(timestamp) [openHABian] Installing OpenJDK ${1}... "
     cond_redirect java_alternatives_reset
     if cond_redirect apt-get install --yes -o DPkg::Lock::Timeout="$APTTIMEOUT" "openjdk-${1}-jre-headless"; then echo "OK"; else echo "FAILED"; return 1; fi
-  elif dpkg -s "openjdk-${1}-jre-headless" &> /dev/null; then
+  else
     echo -n "$(timestamp) [openHABian] Reconfiguring OpenJDK ${1}... "
     cond_redirect java_alternatives_reset
     if cond_redirect dpkg-reconfigure "openjdk-${1}-jre-headless"; then echo "OK"; else echo "FAILED"; return 1; fi