You're welcome
I retested many times to change files *.java in floder /src/main/java/com/openbravo/pos/ticket found that there is something wrong in file Ticketinfo.java . I replaced this file from version 4.3.2. Then the problem solved.
I also use netbeans 8.2
unicenta4.5.4 , jdk-8u221-wondows-x64 and Server version: 5.7.27 - MySQL
Server version: 5.7.27 - MySQL
unicenta4.5.4 and jdk-8u221-wondows-x64
one more must change getPostal() to getPcode() in report as photo
I also have this problem for week but now I can solved the problem with replacing file Userinfo.java (in floder /src/main/java/com/openbravo/pos/ticket ) with the file Userinfo.java version 4.3.2 , recomplie project then all errors disappear except one error on logo in report. delete logo in report and recomplie again. The problem solved