use bash entrypoint for Ubuntu

11/jdk/ubuntu/focal/entrypoint.sh

@@ -1,5 +1,5 @@
-#!/usr/bin/env sh
-# Converted to POSIX shell to avoid the need for bash in the image
+#!/usr/bin/env bash
+# Sheband needs to be `bash`, see https://github.com/adoptium/containers/issues/415 for details
 
 set -e
 
@@ -9,15 +9,15 @@ if [ -n "$USE_SYSTEM_CA_CERTS" ]; then
     # Copy certificates from /certificates to the system truststore, but only if the directory exists and is not empty.
     # The reason why this is not part of the opt-in is because it leaves open the option to mount certificates at the
     # system location, for whatever reason.
-    if [ -d /certificates ] && [ -n "$(ls -A /certificates 2>/dev/null)" ]; then
+    if [ -d /certificates ] && [ "$(ls -A /certificates)" ]; then
         cp -a /certificates/* /usr/local/share/ca-certificates/
     fi
 
-    CACERT="$JAVA_HOME/lib/security/cacerts"
+    CACERT=$JAVA_HOME/lib/security/cacerts
 
     # JDK8 puts its JRE in a subdirectory
     if [ -f "$JAVA_HOME/jre/lib/security/cacerts" ]; then
-        CACERT="$JAVA_HOME/jre/lib/security/cacerts"
+        CACERT=$JAVA_HOME/jre/lib/security/cacerts
     fi
 
     # OpenJDK images used to create a hook for `update-ca-certificates`. Since we are using an entrypoint anyway, we

11/jdk/ubuntu/jammy/entrypoint.sh

@@ -1,5 +1,5 @@
-#!/usr/bin/env sh
-# Converted to POSIX shell to avoid the need for bash in the image
+#!/usr/bin/env bash
+# Sheband needs to be `bash`, see https://github.com/adoptium/containers/issues/415 for details
 
 set -e
 
@@ -9,15 +9,15 @@ if [ -n "$USE_SYSTEM_CA_CERTS" ]; then
     # Copy certificates from /certificates to the system truststore, but only if the directory exists and is not empty.
     # The reason why this is not part of the opt-in is because it leaves open the option to mount certificates at the
     # system location, for whatever reason.
-    if [ -d /certificates ] && [ -n "$(ls -A /certificates 2>/dev/null)" ]; then
+    if [ -d /certificates ] && [ "$(ls -A /certificates)" ]; then
         cp -a /certificates/* /usr/local/share/ca-certificates/
     fi
 
-    CACERT="$JAVA_HOME/lib/security/cacerts"
+    CACERT=$JAVA_HOME/lib/security/cacerts
 
     # JDK8 puts its JRE in a subdirectory
     if [ -f "$JAVA_HOME/jre/lib/security/cacerts" ]; then
-        CACERT="$JAVA_HOME/jre/lib/security/cacerts"
+        CACERT=$JAVA_HOME/jre/lib/security/cacerts
     fi
 
     # OpenJDK images used to create a hook for `update-ca-certificates`. Since we are using an entrypoint anyway, we

11/jre/ubuntu/focal/entrypoint.sh

@@ -1,5 +1,5 @@
-#!/usr/bin/env sh
-# Converted to POSIX shell to avoid the need for bash in the image
+#!/usr/bin/env bash
+# Sheband needs to be `bash`, see https://github.com/adoptium/containers/issues/415 for details
 
 set -e
 
@@ -9,15 +9,15 @@ if [ -n "$USE_SYSTEM_CA_CERTS" ]; then
     # Copy certificates from /certificates to the system truststore, but only if the directory exists and is not empty.
     # The reason why this is not part of the opt-in is because it leaves open the option to mount certificates at the
     # system location, for whatever reason.
-    if [ -d /certificates ] && [ -n "$(ls -A /certificates 2>/dev/null)" ]; then
+    if [ -d /certificates ] && [ "$(ls -A /certificates)" ]; then
         cp -a /certificates/* /usr/local/share/ca-certificates/
     fi
 
-    CACERT="$JAVA_HOME/lib/security/cacerts"
+    CACERT=$JAVA_HOME/lib/security/cacerts
 
     # JDK8 puts its JRE in a subdirectory
     if [ -f "$JAVA_HOME/jre/lib/security/cacerts" ]; then
-        CACERT="$JAVA_HOME/jre/lib/security/cacerts"
+        CACERT=$JAVA_HOME/jre/lib/security/cacerts
     fi
 
     # OpenJDK images used to create a hook for `update-ca-certificates`. Since we are using an entrypoint anyway, we

11/jre/ubuntu/jammy/entrypoint.sh

@@ -1,5 +1,5 @@
-#!/usr/bin/env sh
-# Converted to POSIX shell to avoid the need for bash in the image
+#!/usr/bin/env bash
+# Sheband needs to be `bash`, see https://github.com/adoptium/containers/issues/415 for details
 
 set -e
 
@@ -9,15 +9,15 @@ if [ -n "$USE_SYSTEM_CA_CERTS" ]; then
     # Copy certificates from /certificates to the system truststore, but only if the directory exists and is not empty.
     # The reason why this is not part of the opt-in is because it leaves open the option to mount certificates at the
     # system location, for whatever reason.
-    if [ -d /certificates ] && [ -n "$(ls -A /certificates 2>/dev/null)" ]; then
+    if [ -d /certificates ] && [ "$(ls -A /certificates)" ]; then
         cp -a /certificates/* /usr/local/share/ca-certificates/
     fi
 
-    CACERT="$JAVA_HOME/lib/security/cacerts"
+    CACERT=$JAVA_HOME/lib/security/cacerts
 
     # JDK8 puts its JRE in a subdirectory
     if [ -f "$JAVA_HOME/jre/lib/security/cacerts" ]; then
-        CACERT="$JAVA_HOME/jre/lib/security/cacerts"
+        CACERT=$JAVA_HOME/jre/lib/security/cacerts
     fi
 
     # OpenJDK images used to create a hook for `update-ca-certificates`. Since we are using an entrypoint anyway, we

17/jdk/ubuntu/focal/entrypoint.sh

@@ -1,5 +1,5 @@
-#!/usr/bin/env sh
-# Converted to POSIX shell to avoid the need for bash in the image
+#!/usr/bin/env bash
+# Sheband needs to be `bash`, see https://github.com/adoptium/containers/issues/415 for details
 
 set -e
 
@@ -9,15 +9,15 @@ if [ -n "$USE_SYSTEM_CA_CERTS" ]; then
     # Copy certificates from /certificates to the system truststore, but only if the directory exists and is not empty.
     # The reason why this is not part of the opt-in is because it leaves open the option to mount certificates at the
     # system location, for whatever reason.
-    if [ -d /certificates ] && [ -n "$(ls -A /certificates 2>/dev/null)" ]; then
+    if [ -d /certificates ] && [ "$(ls -A /certificates)" ]; then
         cp -a /certificates/* /usr/local/share/ca-certificates/
     fi
 
-    CACERT="$JAVA_HOME/lib/security/cacerts"
+    CACERT=$JAVA_HOME/lib/security/cacerts
 
     # JDK8 puts its JRE in a subdirectory
     if [ -f "$JAVA_HOME/jre/lib/security/cacerts" ]; then
-        CACERT="$JAVA_HOME/jre/lib/security/cacerts"
+        CACERT=$JAVA_HOME/jre/lib/security/cacerts
     fi
 
     # OpenJDK images used to create a hook for `update-ca-certificates`. Since we are using an entrypoint anyway, we

17/jdk/ubuntu/jammy/entrypoint.sh

@@ -1,5 +1,5 @@
-#!/usr/bin/env sh
-# Converted to POSIX shell to avoid the need for bash in the image
+#!/usr/bin/env bash
+# Sheband needs to be `bash`, see https://github.com/adoptium/containers/issues/415 for details
 
 set -e
 
@@ -9,15 +9,15 @@ if [ -n "$USE_SYSTEM_CA_CERTS" ]; then
     # Copy certificates from /certificates to the system truststore, but only if the directory exists and is not empty.
     # The reason why this is not part of the opt-in is because it leaves open the option to mount certificates at the
     # system location, for whatever reason.
-    if [ -d /certificates ] && [ -n "$(ls -A /certificates 2>/dev/null)" ]; then
+    if [ -d /certificates ] && [ "$(ls -A /certificates)" ]; then
         cp -a /certificates/* /usr/local/share/ca-certificates/
     fi
 
-    CACERT="$JAVA_HOME/lib/security/cacerts"
+    CACERT=$JAVA_HOME/lib/security/cacerts
 
     # JDK8 puts its JRE in a subdirectory
     if [ -f "$JAVA_HOME/jre/lib/security/cacerts" ]; then
-        CACERT="$JAVA_HOME/jre/lib/security/cacerts"
+        CACERT=$JAVA_HOME/jre/lib/security/cacerts
     fi
 
     # OpenJDK images used to create a hook for `update-ca-certificates`. Since we are using an entrypoint anyway, we

17/jre/ubuntu/focal/entrypoint.sh

@@ -1,5 +1,5 @@
-#!/usr/bin/env sh
-# Converted to POSIX shell to avoid the need for bash in the image
+#!/usr/bin/env bash
+# Sheband needs to be `bash`, see https://github.com/adoptium/containers/issues/415 for details
 
 set -e
 
@@ -9,15 +9,15 @@ if [ -n "$USE_SYSTEM_CA_CERTS" ]; then
     # Copy certificates from /certificates to the system truststore, but only if the directory exists and is not empty.
     # The reason why this is not part of the opt-in is because it leaves open the option to mount certificates at the
     # system location, for whatever reason.
-    if [ -d /certificates ] && [ -n "$(ls -A /certificates 2>/dev/null)" ]; then
+    if [ -d /certificates ] && [ "$(ls -A /certificates)" ]; then
         cp -a /certificates/* /usr/local/share/ca-certificates/
     fi
 
-    CACERT="$JAVA_HOME/lib/security/cacerts"
+    CACERT=$JAVA_HOME/lib/security/cacerts
 
     # JDK8 puts its JRE in a subdirectory
     if [ -f "$JAVA_HOME/jre/lib/security/cacerts" ]; then
-        CACERT="$JAVA_HOME/jre/lib/security/cacerts"
+        CACERT=$JAVA_HOME/jre/lib/security/cacerts
     fi
 
     # OpenJDK images used to create a hook for `update-ca-certificates`. Since we are using an entrypoint anyway, we

17/jre/ubuntu/jammy/entrypoint.sh

@@ -1,5 +1,5 @@
-#!/usr/bin/env sh
-# Converted to POSIX shell to avoid the need for bash in the image
+#!/usr/bin/env bash
+# Sheband needs to be `bash`, see https://github.com/adoptium/containers/issues/415 for details
 
 set -e
 
@@ -9,15 +9,15 @@ if [ -n "$USE_SYSTEM_CA_CERTS" ]; then
     # Copy certificates from /certificates to the system truststore, but only if the directory exists and is not empty.
     # The reason why this is not part of the opt-in is because it leaves open the option to mount certificates at the
     # system location, for whatever reason.
-    if [ -d /certificates ] && [ -n "$(ls -A /certificates 2>/dev/null)" ]; then
+    if [ -d /certificates ] && [ "$(ls -A /certificates)" ]; then
         cp -a /certificates/* /usr/local/share/ca-certificates/
     fi
 
-    CACERT="$JAVA_HOME/lib/security/cacerts"
+    CACERT=$JAVA_HOME/lib/security/cacerts
 
     # JDK8 puts its JRE in a subdirectory
     if [ -f "$JAVA_HOME/jre/lib/security/cacerts" ]; then
-        CACERT="$JAVA_HOME/jre/lib/security/cacerts"
+        CACERT=$JAVA_HOME/jre/lib/security/cacerts
     fi
 
     # OpenJDK images used to create a hook for `update-ca-certificates`. Since we are using an entrypoint anyway, we

21/jdk/ubuntu/jammy/entrypoint.sh

@@ -1,5 +1,5 @@
-#!/usr/bin/env sh
-# Converted to POSIX shell to avoid the need for bash in the image
+#!/usr/bin/env bash
+# Sheband needs to be `bash`, see https://github.com/adoptium/containers/issues/415 for details
 
 set -e
 
@@ -9,15 +9,15 @@ if [ -n "$USE_SYSTEM_CA_CERTS" ]; then
     # Copy certificates from /certificates to the system truststore, but only if the directory exists and is not empty.
     # The reason why this is not part of the opt-in is because it leaves open the option to mount certificates at the
     # system location, for whatever reason.
-    if [ -d /certificates ] && [ -n "$(ls -A /certificates 2>/dev/null)" ]; then
+    if [ -d /certificates ] && [ "$(ls -A /certificates)" ]; then
         cp -a /certificates/* /usr/local/share/ca-certificates/
     fi
 
-    CACERT="$JAVA_HOME/lib/security/cacerts"
+    CACERT=$JAVA_HOME/lib/security/cacerts
 
     # JDK8 puts its JRE in a subdirectory
     if [ -f "$JAVA_HOME/jre/lib/security/cacerts" ]; then
-        CACERT="$JAVA_HOME/jre/lib/security/cacerts"
+        CACERT=$JAVA_HOME/jre/lib/security/cacerts
     fi
 
     # OpenJDK images used to create a hook for `update-ca-certificates`. Since we are using an entrypoint anyway, we

21/jre/ubuntu/jammy/entrypoint.sh

@@ -1,5 +1,5 @@
-#!/usr/bin/env sh
-# Converted to POSIX shell to avoid the need for bash in the image
+#!/usr/bin/env bash
+# Sheband needs to be `bash`, see https://github.com/adoptium/containers/issues/415 for details
 
 set -e
 
@@ -9,15 +9,15 @@ if [ -n "$USE_SYSTEM_CA_CERTS" ]; then
     # Copy certificates from /certificates to the system truststore, but only if the directory exists and is not empty.
     # The reason why this is not part of the opt-in is because it leaves open the option to mount certificates at the
     # system location, for whatever reason.
-    if [ -d /certificates ] && [ -n "$(ls -A /certificates 2>/dev/null)" ]; then
+    if [ -d /certificates ] && [ "$(ls -A /certificates)" ]; then
         cp -a /certificates/* /usr/local/share/ca-certificates/
     fi
 
-    CACERT="$JAVA_HOME/lib/security/cacerts"
+    CACERT=$JAVA_HOME/lib/security/cacerts
 
     # JDK8 puts its JRE in a subdirectory
     if [ -f "$JAVA_HOME/jre/lib/security/cacerts" ]; then
-        CACERT="$JAVA_HOME/jre/lib/security/cacerts"
+        CACERT=$JAVA_HOME/jre/lib/security/cacerts
     fi
 
     # OpenJDK images used to create a hook for `update-ca-certificates`. Since we are using an entrypoint anyway, we

8/jdk/ubuntu/focal/entrypoint.sh

@@ -1,5 +1,5 @@
-#!/usr/bin/env sh
-# Converted to POSIX shell to avoid the need for bash in the image
+#!/usr/bin/env bash
+# Sheband needs to be `bash`, see https://github.com/adoptium/containers/issues/415 for details
 
 set -e
 
@@ -9,15 +9,15 @@ if [ -n "$USE_SYSTEM_CA_CERTS" ]; then
     # Copy certificates from /certificates to the system truststore, but only if the directory exists and is not empty.
     # The reason why this is not part of the opt-in is because it leaves open the option to mount certificates at the
     # system location, for whatever reason.
-    if [ -d /certificates ] && [ -n "$(ls -A /certificates 2>/dev/null)" ]; then
+    if [ -d /certificates ] && [ "$(ls -A /certificates)" ]; then
         cp -a /certificates/* /usr/local/share/ca-certificates/
     fi
 
-    CACERT="$JAVA_HOME/lib/security/cacerts"
+    CACERT=$JAVA_HOME/lib/security/cacerts
 
     # JDK8 puts its JRE in a subdirectory
     if [ -f "$JAVA_HOME/jre/lib/security/cacerts" ]; then
-        CACERT="$JAVA_HOME/jre/lib/security/cacerts"
+        CACERT=$JAVA_HOME/jre/lib/security/cacerts
     fi
 
     # OpenJDK images used to create a hook for `update-ca-certificates`. Since we are using an entrypoint anyway, we

8/jdk/ubuntu/jammy/entrypoint.sh

@@ -1,5 +1,5 @@
-#!/usr/bin/env sh
-# Converted to POSIX shell to avoid the need for bash in the image
+#!/usr/bin/env bash
+# Sheband needs to be `bash`, see https://github.com/adoptium/containers/issues/415 for details
 
 set -e
 
@@ -9,15 +9,15 @@ if [ -n "$USE_SYSTEM_CA_CERTS" ]; then
     # Copy certificates from /certificates to the system truststore, but only if the directory exists and is not empty.
     # The reason why this is not part of the opt-in is because it leaves open the option to mount certificates at the
     # system location, for whatever reason.
-    if [ -d /certificates ] && [ -n "$(ls -A /certificates 2>/dev/null)" ]; then
+    if [ -d /certificates ] && [ "$(ls -A /certificates)" ]; then
         cp -a /certificates/* /usr/local/share/ca-certificates/
     fi
 
-    CACERT="$JAVA_HOME/lib/security/cacerts"
+    CACERT=$JAVA_HOME/lib/security/cacerts
 
     # JDK8 puts its JRE in a subdirectory
     if [ -f "$JAVA_HOME/jre/lib/security/cacerts" ]; then
-        CACERT="$JAVA_HOME/jre/lib/security/cacerts"
+        CACERT=$JAVA_HOME/jre/lib/security/cacerts
     fi
 
     # OpenJDK images used to create a hook for `update-ca-certificates`. Since we are using an entrypoint anyway, we

8/jre/ubuntu/focal/entrypoint.sh

@@ -1,5 +1,5 @@
-#!/usr/bin/env sh
-# Converted to POSIX shell to avoid the need for bash in the image
+#!/usr/bin/env bash
+# Sheband needs to be `bash`, see https://github.com/adoptium/containers/issues/415 for details
 
 set -e
 
@@ -9,15 +9,15 @@ if [ -n "$USE_SYSTEM_CA_CERTS" ]; then
     # Copy certificates from /certificates to the system truststore, but only if the directory exists and is not empty.
     # The reason why this is not part of the opt-in is because it leaves open the option to mount certificates at the
     # system location, for whatever reason.
-    if [ -d /certificates ] && [ -n "$(ls -A /certificates 2>/dev/null)" ]; then
+    if [ -d /certificates ] && [ "$(ls -A /certificates)" ]; then
         cp -a /certificates/* /usr/local/share/ca-certificates/
     fi
 
-    CACERT="$JAVA_HOME/lib/security/cacerts"
+    CACERT=$JAVA_HOME/lib/security/cacerts
 
     # JDK8 puts its JRE in a subdirectory
     if [ -f "$JAVA_HOME/jre/lib/security/cacerts" ]; then
-        CACERT="$JAVA_HOME/jre/lib/security/cacerts"
+        CACERT=$JAVA_HOME/jre/lib/security/cacerts
     fi
 
     # OpenJDK images used to create a hook for `update-ca-certificates`. Since we are using an entrypoint anyway, we

8/jre/ubuntu/jammy/entrypoint.sh

@@ -1,5 +1,5 @@
-#!/usr/bin/env sh
-# Converted to POSIX shell to avoid the need for bash in the image
+#!/usr/bin/env bash
+# Sheband needs to be `bash`, see https://github.com/adoptium/containers/issues/415 for details
 
 set -e
 
@@ -9,15 +9,15 @@ if [ -n "$USE_SYSTEM_CA_CERTS" ]; then
     # Copy certificates from /certificates to the system truststore, but only if the directory exists and is not empty.
     # The reason why this is not part of the opt-in is because it leaves open the option to mount certificates at the
     # system location, for whatever reason.
-    if [ -d /certificates ] && [ -n "$(ls -A /certificates 2>/dev/null)" ]; then
+    if [ -d /certificates ] && [ "$(ls -A /certificates)" ]; then
         cp -a /certificates/* /usr/local/share/ca-certificates/
     fi
 
-    CACERT="$JAVA_HOME/lib/security/cacerts"
+    CACERT=$JAVA_HOME/lib/security/cacerts
 
     # JDK8 puts its JRE in a subdirectory
     if [ -f "$JAVA_HOME/jre/lib/security/cacerts" ]; then
-        CACERT="$JAVA_HOME/jre/lib/security/cacerts"
+        CACERT=$JAVA_HOME/jre/lib/security/cacerts
     fi
 
     # OpenJDK images used to create a hook for `update-ca-certificates`. Since we are using an entrypoint anyway, we