The final JRE image created is identical to the image installed by the regular online or offline installer. However, the download connection remains open and all remaining classes are downloaded in the background, with no impact on the currently executing Java Web App. The Java Web App continues execution after all required classes have been downloaded. The following dialog is displayed when additional packages are being downloaded. The additional packages required for a Java Web App are downloaded next. When a user triggers the Java Kernel Installer, the kernel is downloaded first. Alternately, it may be launched via the Deployment Toolkit when deploying a Java Web App (applet or Java Web Start application).
The Java Kernel installer may be launched manually.
The Java Kernel installer is smaller and thus downloads and installs the JRE much more quickly when compared to the regular online or offline installer. This problem is solved by packaging a certain core set of JRE components ( kernel) in the Java Kernel installer. This has led to the JRE becoming large and slow to download and install. The Java Runtime Environment (JRE) provides many APIs like Swing, AWT, ImageIO, SQL, CORBA, RMI, math, XML, XSLT, concurrency and so on.
0 kommentar(er)
