VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o. java.lang.NullPointerException at java.base/jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance ...

It doesn’t take much Java development experience to learn firsthand what the NullPointerException is about. In fact, one person has highlighted dealing with this as the number one mistake Java ...

Bom dia, ao usar a aplicação de exemplo em uma pagamento a credito, finalizou com sucesso e ao imprimir o comprovante levantou essa pilha de erro: D/PrinterCallbackAdapter( 4961): ...