The derby.system.bootAll property specifies that all databases in the directory specified by the derby.system.home property should be automatically booted at startup time.
When this property is set to true, databases in the derby.system.home directory are booted at startup. Otherwise, databases are booted when you first connect to them.
You may want to use the derby.system.bootAll property to avoid a delay at first connection time. After a crash, a boot that requires recovery can take a long time, and you may want to perform this boot as soon as Derby is restarted.
You can set the derby.database.noAutoBoot property on a particular database if you want to prevent it from being automatically booted at startup.
False.
derby.system.bootAll=true
This property is static; if you change it while Derby is running, the change does not take effect until you reboot.