With a job using CHOICE parameters the parameterised scheduler fails
java.lang.NumberFormatException: For input string: "STACK=base"
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
at java.lang.Integer.parseInt(Integer.java:580)
at java.lang.Integer.parseInt(Integer.java:615)
at java.text.MessageFormat.makeFormat(MessageFormat.java:1427)
Caused: java.lang.IllegalArgumentException: can't parse argument number: STACK=base
at java.text.MessageFormat.makeFormat(MessageFormat.java:1429)

The schedule is defined as
0 0 1 * * % STACK=base; OS_RELEASE=centos7