sqldeveloper 找不到时区的问题

使用sqldeveloper ，报错找不到时区的问题的解决方式：

1. Go to the installation directory of Oracle SQL Developer.
2. Open the file located at: sqldeveloper/bin/sqldeveloper.conf.
3. At the end of file, add the following line: AddVMOption -Duser.timezone=GMT-4

参考来自https://stackoverflow.com/questions/14864015/how-to-change-the-timezone-of-oracle-sql-developer-oracle-data-modeler；