Java SE 6 Update 10 venku
Po roce čekání a více než miliónu stažení (viz Java SE 6 Update 10 is out but what does it deliver?) beta verze je venku dlouho očekávaný update číslo deset.
Podle označení by se zdálo, že se jedná pouze o fix pack, nicméně seznam úprav odpovídá spíše pořádnému třesku. Nejzásadnější změnou je nový plug-in systém, který umožňuje lepší běh a deployment appletů a to navíc v hybridním módu, kdy je možné běžící applet přetáhnout na desktop a provozovat jako klasickou desktopovou aplikaci.
- Improved reliability. The JVM running the applet is
isolated from the web browser at the operating system level. If
something should go wrong while running the applet, or if an
uncooperative applet refuses to shut down, the new Java Plug-In
detects and handles the error condition gracefully; the web
browser is unaffected. - Built-in JNLP support. The new plug-in offers the
capability to launch applets directly from JNLP files, unifying
deployment of Java content both in the browser and out of the
browser (via Java Web Start). Developers can now reuse JNLP
extensions for advanced functionality including the JavaFX run-time
libraries, 3D graphics
via OpenGL, and planetary-scale
terrain visualization within applets. Applets can now access
JNLP APIs for persistent data storage, local file system access,
and other useful functionality from sandboxed code. - Per-applet command-line arguments. JVM command-line
arguments may be specified on a per-applet basis, providing
fine-grained control over options such as the heap size and Java
2D hardware acceleration features. JNLP-launched applets simply
incorporate the command-line arguments and/or system properties
into the JNLP file. Old-style applets can embed these arguments
in the HTML of the web page. - Multiple JRE version support. Each individual applet
instance may request a different JRE version on which to run.
This feature is designed for enterprise customers which prefer to
qualify their applets against either a particular JRE version or
a particular JRE family. Both selection of a specific JRE
version, or any in a particular family, are supported in the new
plug-in. - Improved Java/JavaScript communication. The bridge between
the JavaScript engine in the web browser and the Java programming
language has been completely reimplemented. The new
implementation is backward-compatible and features improved
reliability, performance and cross-browser portability, for both
Java calling JavaScript as well as JavaScript calling Java.
Formerly Mozilla-specific “LiveConnect” functionality, such as
the ability to call static Java methods, instantiate new Java
objects and reference third-party packages from JavaScript, is
now available in all browsers. - Improved user experience. The new Java Plug-In starts
applets in the background, so the web browser always remains
responsive. Applets appear on the web page as they become ready
to run. - Improved applet lifecycle management. Calls to the applet
lifecycle methodsinit,start,
stop, anddestroyare more
deterministic and cross-browser behavior has been improved. The
applet class loader cache and the legacy applet lifecycle,
required for backward compatibility, are fully supported and the
behavior of both has been improved. - Better large heap support. Historically, the maximum heap
size that could be specified for applets via the Java Control
Panel has been limited. This limitation is fixed in the new Java
Plug-In; applets can now utilize as much heap space as
command-line applications. - Better Windows Vista support. Signed applets running in
Protected Mode Internet Explorer on Microsoft’s Windows Vista now
have the same privileges as normal user applications, eliminating
a portability barrier to this platform.
Nuže předmostí pro JavaFX je položeno, otázka zní není to pozdě? Technologie appletů totiž žehrá na to, že na ní Sun dlouhou dobu kašlal a ta se tak trochu zkompromitovala sama. Uvidíme jestli tato resuscitacek něčemu povede.
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