AI News, Oracle Java SE Embedded 8u77 Release Notes
- On Thursday, October 4, 2018
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Oracle Java SE Embedded 8u77 Release Notes
JDK 8 Embedded Release Notes These release notes describe its new features, platform requirements, installation, limitations, known problems and issues, and documentation for Oracle Java SE Embedded.
Oracle Java SE Embedded 8 is a modular system that must be configured before launching by selecting components and creating a custom JRE to suit your device and applications, using the included jrecreate tool.
Oracle Java SE Embedded Developer's Guide contains information for both platform developers and application developers about how to create custom JREs and install them on custom devices and how to develop headless and headful applications for the custom JRE.
Oracle Java SE Embedded 8u141 Release Notes
July 18, 2017 JDK 8 Embedded Release Notes These release notes describe its new features, platform requirements, installation, limitations, known problems and issues, and documentation for Oracle Java SE Embedded.
See http://www.oracle.com/technetwork/java/embedded/resources/se-embeddocs/ Oracle Java SE Embedded Developer's Guide contains information for both platform developers and application developers about how to create custom JREs and install them on custom devices and how to develop headless and headful applications for the custom JRE.
Oracle Java SE Embedded: Release Notes
Release Notes Release 8 E28299-04 March 2014 These release notes introduce Oracle Java SE Embedded and describe its new features, platform requirements, installation, limitations, known problems and issues, and documentation.
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Java (software platform)
Java is a set of computer software and specifications developed by James Gosling at Sun Microsystems, which was later acquired by the Oracle Corporation, that provides a system for developing application software and deploying it in a cross-platform computing environment.
Java applets, which are less common than standalone Java applications, were commonly run in secure, sandboxed environments to provide many features of native applications through being embedded in HTML pages.
Java eschews certain low-level constructs such as pointers and has a very simple memory model where objects are allocated on the heap (while some implementations e.g.
Oracle (and others) has announced that using older (than Java 8) versions of their JVM implementation presents serious risks due to unresolved security issues.
Java is not specific to any processor or operating system as Java platforms have been implemented for a wide variety of hardware and operating systems with a view to enable Java programs to run identically on all of them.
The essential components in the platform are the Java language compiler, the libraries, and the runtime environment in which Java intermediate bytecode executes according to the rules laid out in the virtual machine specification.
Instead, the Java platform provides a comprehensive set of its own standard class libraries containing many of the same reusable functions commonly found in modern operating systems.
For instance, the Swing library paints the user interface and handles the events itself, eliminating many subtle differences between how different platforms handle components.
First, like other standard code libraries, the Java libraries provide the programmer a well-known set of functions to perform common tasks, such as maintaining lists of items or performing complex string parsing.
The java.net and java.io libraries implement an abstraction layer in native OS code, then provide a standard interface for the Java applications to perform those tasks.
Finally, when some underlying platform does not support all of the features a Java application expects, the class libraries work to gracefully handle the absent components, either by emulation to provide a substitute, or at least by providing a consistent way to check for the presence of a specific feature.
Programming languages are typically outside of the scope of the phrase 'platform', although the Java programming language was listed as a core part of the Java platform before Java 7.
However, an effort was made with the Java 7 specification to more clearly treat the Java language and the Java virtual machine as separate entities, so that they are no longer considered a single unit.
.NET was built from the ground-up to support multiple programming languages, while the Java platform was initially built to support only the Java language, although many other languages have been made for JVM since.
.NET includes a Java-like language called Visual J# (formerly named J++) that is incompatible with the Java specification, and the associated class library mostly dates to the old JDK 1.1 version of the language.
Initially, Gosling attempted to modify and extend C++ (a proposed development that he referred to as 'C++ ++ --') but soon abandoned that in favor of creating a new language, which he called Oak, after the tree that stood just outside his office.
Their first demonstration, on September 3, 1992, focused on building a personal digital assistant (PDA) device named Star7 that had a graphical interface and a smart agent called 'Duke' to assist the user.
The Firstperson team had an interest in building highly interactive devices, and when Time Warner issued a request for proposal (RFP) for a set-top box, Firstperson changed their target and responded with a proposal for a set-top box platform.
Although Java 1.0a became available for download in 1994, the first public release of Java, Java 1.0a2 with the HotJava browser, came on May 23, 1995, announced by Gage at the SunWorld conference.
This and subsequent releases through J2SE 5.0 were rebranded Java 2 and the version name 'J2SE' (Java 2 Platform, Standard Edition) replaced JDK to distinguish the base platform from J2EE (Java 2 Platform, Enterprise Edition) and J2ME (Java 2 Platform, Micro Edition).
Major additions included reflection, a collections framework, Java IDL (an interface description language implementation for CORBA interoperability), and the integration of the Swing graphical API into the core classes.
Other major changes include support for pluggable annotations (JSR 269), many GUI improvements, including native UI enhancements to support the look and feel of Windows Vista, and improvements to the Java Platform Debugger Architecture (JPDA) &
Windows 7 or Server 2012 (and web browser minimum certified is upped to Internet Explorer 11 or other web browsers), and Oracle dropped 32-bit compatibility for all platforms, i.e.
For the first time, OpenJDK 11 represents the complete source code for the Java platform under the GNU General Public License, and while Oracle still dual-licenses it with an optional proprietary license, there are no code differences nor modules unique to the proprietary-licensed version.
Java 11 features include two new garbage collector implementations, Flight Recorder to debug deep issues, a new HTTP client including WebSocket support.
In addition to language changes, significant changes have been made to the Java class library over the years, which has grown from a few hundred classes in JDK 1.0 to over three thousand in J2SE 5.0.
Apple no longer includes a Java runtime with OS X as of version 10.7, but the system prompts the user to download and install it the first time an application requiring the JRE is launched.
Oracle plans to first deprecate the separately installable Java browser plugin from the Java Runtime Environment in JDK 9 then remove it completely from a future release, forcing web developers to use an alternative technology.
This interest has inspired open source communities to produce a large amount of software, including simple function libraries, development frameworks (e.g.
GNU Classpath and Apache Harmony) created free software partial Java implementations, the large size of the Sun libraries combined with the use of clean room methods meant that their implementations of the Java libraries (the compiler and VM are comparatively small and well defined) were incomplete and not fully compatible.
Sun released the Java HotSpot virtual machine and compiler as free software under the GNU General Public License on November 13, 2006, with a promise that the rest of the JDK (that includes the JRE) would be placed under the GPL by March 2007 ('except for a few components that Sun does not have the right to publish in distributable source form under the GPL').
Sun released the source code of the Class library under GPL on May 8, 2007, except some limited parts that were licensed by Sun from third parties who did not want their code to be released under a free software and open-source license.
Some of the encumbered parts turned out to be fairly key parts of the platform such as font rendering and 2D rasterising, but these were released as open-source later by Sun (see OpenJDK Class library).
Sun's goal was to replace the parts that remain proprietary and closed-source with alternative implementations and make the class library completely free and open source.
In the meantime, a third-party project called IcedTea created a completely free and highly usable JDK by replacing encumbered code with either stubs or code from GNU Classpath.
When generics were added to Java 5.0, there was already a large framework of classes (many of which were already deprecated), so generics were chosen to be implemented using erasure to allow for migration compatibility and re-use of these existing classes.
it is possible to partially circumvent this problem with conversion code and using larger data types, it makes using Java cumbersome for handling the unsigned data.
While a 32-bit signed integer may be used to hold a 16-bit unsigned value with relative ease, a 32-bit unsigned value would require a 64-bit signed integer.
Java bytecode can either be interpreted at run time by a virtual machine, or it can be compiled at load time or runtime into native code which runs directly on the computer's hardware.
which is designed to allow the user to run untrusted bytecode in a 'sandboxed' manner to protect against malicious or poorly written software.
This 'sandboxing' feature is intended to protect the user by restricting access to certain platform features and APIs which could be exploited by malware, such as accessing the local filesystem, running arbitrary commands, or accessing communication networks.
In recent years, researchers have discovered numerous security flaws in some widely used Java implementations, including Oracle's, which allow untrusted code to bypass the sandboxing mechanism, exposing users to malicious attacks.
These flaws affect only Java applications which execute arbitrary untrusted bytecode, such as web browser plug-ins that run Java applets downloaded from public websites.
On August 31, 2012, Java 6 and 7 (then supported, but no longer) on Microsoft Windows, macOS, and Linux were found to have a serious security flaw that allowed a remote exploit to take place by simply loading a malicious web page.
'I look forward to a world without the Java plugin (and to not having to remind readers about quarterly patch updates) but it will probably be years before various versions of this plugin are mostly removed from end-user systems worldwide.'
- On Tuesday, October 22, 2019
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