On the Manage Hudson page, click on the Configure System link in the main panel of the page. This will bring you to the System Configurations page, shown as follows:
We will not change the settings in the top half of the page. You can view the online help for any of the settings to determine if you want to change them. Once your Hudson installation is being used more heavily, the settings for # of executors and Quiet period should be reviewed, as these may have an impact on your system's performance.
Java is commonly used in Hudson jobs. Java Development Kit (JDK) is required to compile the Java applications. We will configure JDK so that it can be used to execute Hudson jobs.
Because of the licensing restrictions of Oracle JDK, we are not able to automatically install JDK for Hudson to use its builds. Luckily in Chapter 2, Installing and Running Hudson, we downloaded Oracle JDK and installed it. To add JDK, click on the Add JDK button in the JDK section...