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“java.lang.nullpointerexception” error shown when using COBOL Application Run Configuration - Visual COBOL for Eclipse 3.0
This is a known Eclipse IDE issue when using a monitor with high DPI settings (e.g. 4k monitor), see Eclipse Bug report:
To resolve this, consider upgrading Eclipse from version 4.6.0 to version 4.6.3 where handling of monitors with high DPI is improved.