public String getScriptExpression() {
        return scriptExpression;
    }
@param caseExpression A javascript expression for decision cases. The result should be a
    scalar value that is used to decide the case branches.
@deprecated Use {@link WorkflowTask#getEvaluatorType()} and {@link
    WorkflowTask#getExpression()} combination.
common/src/main/java/com/netflix/conductor/common/metadata/workflow/WorkflowTask.java