JDK_JAVA_OPTIONS picked up twice

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

```bash
$ 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

```bash
$ 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.

Reproduce the issue with the supplied docker run command and compare the two JDK_JAVA_OPTIONS notices and the jps output. Inspect how the Eclipse Temurin container starts Java and passes environment options; done means the option is picked up once and appears once in the running process and JMX view.

Written by the indexing model from the issue text.