add dotted environment variables test

test/tests/dotted-environment-variables/container.java

@@ -0,0 +1,11 @@
+public class container {
+	/**
+	 * Check if dotted env vars are supported.
+	 */
+	public static void main(String[] args) {
+		// get value of variable.with.a.dot and print it out
+		String value = System.getenv("variable.with.a.dot");
+		System.out.println(value);
+		System.exit(0);
+	}
+}

test/tests/dotted-environment-variables/expected-std-out.txt

@@ -0,0 +1 @@
+a.dotted.value

test/tests/dotted-environment-variables/run.sh

@@ -0,0 +1 @@
+../run-java-in-container.sh

test/tests/run-java-in-container.sh

@@ -51,4 +51,9 @@ COPY --from=jdk /container /container
 WORKDIR /container
 EOD
 
-docker run --rm "$newImage" java -cp . container
+# if testDir contains dotted-environment-variables we need to add an environment variable to the docker run command
+if [[ "$testDir" == *"dotted-environment-variables"* ]]; then
+  docker run --rm -e "variable.with.a.dot=a.dotted.value" "$newImage" java -cp . container
+else
+  docker run --rm "$newImage" java -cp . container
+fi