3738854 - Issue of failing to compile VDM in BTP BAS with an error

When running "mvn clean package install" in a CAP project on BTP BAS (Full Stack Cloud Application space), the build fails with errors like:

    cannot find symbol: method getHeaderKey()
    cannot find symbol: method getDocumentType()
    cannot find symbol: method getCompanyCode()

The errors point to generated VDM classes under:
    com/sap/cloud/sdk/s4hana/datamodel/odata/namespaces/<service>/

The methods appear to exist when opening the files in the IDE, but the compiler cannot find them. The code itself has not been changed.

• SAP BTP Business Application Studio (Full Stack Cloud Application space)
• CAP (Cloud Application Programming Model) project
• Maven build (mvn clean package install)
• BAS runtime: SapMachine JDK 25 (upgraded from earlier version)

BTP, BAS, mvn, getXXX(), cannot find symbol, method getHeaderKey(), dependencies, SapMachine, JDK, Lombok, IDE , KBA , BC-XS-CDX-JAV , SAP CAP – Java runtime , Problem