Source-derived document; reported behaviour, inference and evidence gaps are identified in the text.
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startup and execution
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Operation: startup and execution
D4_Main creates the application, initializes the database connection and global data, loads states and stocks, and then enters the main menu. The main controller exposes customer, order, stock, and reporting modules. The exact customer implementation remains a missing dependency rather than evidence of global absence. E0011 E0012
The documented Unix launcher runs Java with a classpath containing demo/bin and the named library JARs, while the Windows launcher uses a semicolon-separated classpath and invokes the same main class. The repository setup script downloads and installs Informix using wget, tar, and the IBM installer. Failure of those tools or of the download is an inferred operational dependency, not a demonstrated application error path. E0014
Harten documentation of the Informix 4GL and Java source repository, from the retained 17 October 2026 export. The exact upstream revision analysed is not established. Source findings do not establish runtime behaviour or equivalence between the implementations.
Evidence identifiers are retained for traceability. The underlying analysis records are not included in this public edition; credential values are redacted. About this case study.