JDK_JAVA_OPTIONS picked up twice

[irigarae]

When using the JDK_JAVA_OPTIONS environment variable it's picked up twice.

$ echo 'public class Test { public static void main(String[] args) { System.out.println("Should pick once"); } }' > Test.java
$ docker run --rm -it -v $(pwd)/Test.java:/Test.java:Z -e JDK_JAVA_OPTIONS="-Dsomehow=duplicated" eclipse-temurin:17.0.1_12-jdk-alpine java Test.java
NOTE: Picked up JDK_JAVA_OPTIONS: -Dsomehow=duplicated
NOTE: Picked up JDK_JAVA_OPTIONS: -Dsomehow=duplicated
Should pick once

Visible also by running an app in the background and doing

$ jps -lvm
6 jdk.compiler/com.sun.tools.javac.launcher.Main Test.java -Dsomehow=duplicated -Dsomehow=duplicated --add-modules=ALL-DEFAULT

Also visible from JMX.

[zdtsw]

duplicated as in adoptium/adoptium-support#303 ?

[gdams]

i think this is because we set JAVA_TOOL_OPTIONS in our entrypoint.sh:

containers/17/jdk/alpine/entrypoint.sh

Line 48 in e78d855

export JAVA_TOOL_OPTIONS="${JAVA_TOOL_OPTIONS} -Djavax.net.ssl.trustStore=${JRE_CACERTS_PATH} -Djavax.net.ssl.trustStorePassword=changeit"

Running your test with JAVA_TOOL_OPTIONS instead of JDK_JAVA_OPTIONS seems to prevent this from happening:

docker run --rm -it -v $(pwd)/Test.java:/Test.java:Z -e JAVA_TOOL_OPTIONS="-Dsomehow=duplicated" eclipse-temurin:17-jdk-alpine java Test.java

Picked up JAVA_TOOL_OPTIONS: -Dsomehow=duplicated
Should pick once