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via Oracle Community by 807594, 1 year ago
This exception has no message.
java.lang.NullPointerException: 	at keirs_electronic_till.define_products(keirs_electronic_till.java:57)	at keirs_electronic_till.gen_products(keirs_electronic_till.java:53)	at keirs_electronic_till.main(keirs_electronic_till.java:74)