DemoSupport

DemoSupport

This is the seventh Java file, a shared helper rather than an executable strategy.

• Validates --live, --charts and --quick options.
• Loads the external license before licensed library objects are constructed.
• Selects deterministic offline bars or cached Yahoo downloads.
• Adapts adjusted closes to order-book caches.
• Selects a no-op plotter by default for headless runs.
• Checks nonempty finite NAV values and prints the execution count.

--quick affects the dynamic demo's date range and parameter grid. Options are process-wide; the offline runner uses a separate JVM for each demo. The helper does not check that every derived statistic is finite and does not require a trade.

See Data-and-methodology for generation details and Reproduce-the-results for usage.