![322: Time-Based Release Versioning
– An element is either zero, or an unsigned integer numeral without leading
zeros.
– final element of a version number must not be zero. When an element is
incremented, all subsequent elements are removed.
– first four elements are assigned specific meanings, as follows:
– 1. $FEATURE 2. $INTERIM 3. $UPDATE 4. $PATCH
[1-9][0-9]*((.0)*.[1-9][0-9]*)*](https://image.slidesharecdn.com/arjun-java10-180406111811/85/Java10-new-features-2018-12-320.jpg)
Java10 new features 2018
- 1. JAVA 10 Submitted to : Prof. Jyoti Lakhani MGSU, Bikaner Arjun Bhati Semester 4th
- 2. Java 10 – JEP (Java Developments kit (JDK) Enhancement Proposal) – Oracle Corporation – Java Development Kit and OpenJDk
- 3. 10 new features of Java 10 ! 286: Local-Variable Type Inference 296: Consolidate the JDK Forest into a Single Repository 304: Garbage-Collector Interface 307: Parallel Full GC for G1 310: Application Class-Data Sharing 312: Thread-Local Handshakes 313: Remove the Native-Header Generation Tool (javah) 314: Additional Unicode Language-Tag Extensions 316: Heap Allocation on Alternative Memory Devices 317: Experimental Java-Based JIT Compiler 319: Root Certificates 322: Time-Based Release Versioning JEP no.
- 4. 286: Local-Variable Type Inference – This is most interesting futures – improve the developer experience by reducing the ceremony associated with writing Java code, – Many of the most popular strongly-type programming languages like C++, C#. – C++ provides the auto and C# provides var keyword. – Since the var keyword is context-sensitive,
- 5. 304: Garbage-Collector Interface – The GC interface would be defined by the existing class CollectedHeap which every garbage collector needs to implement. – The code for implementation details that are shared between multiple garbage collectors should exist in a helper class. – HOTSHOP – Mobile Hotshop.There a few utility classes needed prior to a CollectedHeap being instantiated
- 6. 307: Parallel Full GC for G1 – The G1 garbage collector is designed to avoid full collections – The current implementation of the full GC for G1 uses a single threaded mark- sweep-compact algorithm – Use the same number of threads as the Young and Mixed collections do. G 1 garbage collector Garbage collector
- 7. 310: Application Class-Data Sharing – Class-Data Sharing, introduced in JDK 5, allows a set of classes to be pre- processed into a shared archive file that can then be memory-mapped at runtime to reduce startup time – Analysis of serverless cloud services shows that many of them load several thousand application classes at start-up. – Summary To improve startup and footprint, extend the existing Class-Data Sharing ("CDS") feature to allow application classes to be placed in the shared archive.
- 8. 313: Remove the Native-Header Generation Tool (javah) – This functionality provides the ability to write native header files at the time that Java source code is compiled – Focusing on the support provided by javac eliminates the need to upgrade javah to support recent new paradigms, such as API access via the Compiler API in javax.tools.* – Remove the javah tool from the JDK. – Any testing will be limited to verifying the javah command is not present. – java.util.spi.ToolProvider SPI added in JDK 9.
- 9. 314: Additional Unicode Language-Tag Extensions – This JEP will add support for the following additional extensions: – cu (currency type) fw (first day of week) rg (region override) tz (time zone) – Enhance java.util.Locale and related APIs to implement additional Unicode extensions of BCP 47 language tags.
- 10. 317: Experimental Java-Based JIT Compiler – Enable Graal to be used as an experimental JIT compiler, starting with the Linux/x64 platform. Graal will use the JVM compiler interface (JVMCI) introduced in JDK 9. Graal is already in the JDK, so enabling it as an experimental JIT will primarily be a testing and debugging effort. – To enable Graal as the JIT compiler, use the following options on the java command line: – Graal is an Oracle project aiming to implement a high performance Java dynamic compiler and interpreter. The objective of Graal is to improve the performance of Java virtual machine-based languages to match the performance of native languages.
- 11. Graal is just a Java library. JVMCI provides interfaces that Graal can use to do lower-level things such as installing machine code,
- 12. 322: Time-Based Release Versioning – An element is either zero, or an unsigned integer numeral without leading zeros. – final element of a version number must not be zero. When an element is incremented, all subsequent elements are removed. – first four elements are assigned specific meanings, as follows: – 1. $FEATURE 2. $INTERIM 3. $UPDATE 4. $PATCH [1-9][0-9]*((.0)*.[1-9][0-9]*)*
- 13. – The March 2018 release is #JDK10, – The September 2018 release is #JDK11 – http://openjdk.java.net – https://aboullaite.me – https://twitter.com/java/status – http://www.oracle.com