Java Language

Java language news, information, and how-to advice

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Modular Java's true impact

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Java 9's other new enhancements, Part 5: Stack-Walking API

Replacing StackTraceElement, the new Stack-Walking API supports filtering and lazy access to stack trace information, and makes it easier to obtain the caller class

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Oracle’s Java-on-Java experiment picks up steam

In a recent presentation, Oracle detailed both progress and future plans for implementing Java on Java

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Oracle recommends axing Java object finalizer

But due to Java’s release schedule, the Object.finalize feature will likely stick around for a while

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Java 9's other new enhancements, Part 4: Multi-release JAR files

A Java 9 extension to the JAR file format makes it easier for third-party libraries and frameworks to use language and API features from newer Java releases

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Oracle sets priorities for Java 9 bug fixes

Speeding toward the Java 9 release date, Oracle will address only the highest priority bugs before July 27

Interfaces in Java

Java 101: Interfaces in Java

Extracting class interfaces into Java interfaces can increase the reusability of your code, but only if you know how to use their special properties.

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Java 9's other new enhancements, Part 3: The Process API

Updates to the Process API will make it easier to obtain a process ID, get additional information about a process, and execute actions on process termination

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Java garbage collector proposal aimed at performance testing

The Epsilon project could benefit testers, but it wouldn't bring manual memory management to Java

coming soon

Java 9 gets a release date: July 27

JDK 9, which features modularization and ahead-of-time compilation, will be released this summer

Type dependency and variances in Java

Type dependency in Java, Part 1

Covariance and contravariance might seem esoteric, but you'll need these concepts more than ever as the Java language evolves. Get started with type dependency in array types, generic types, and the wildcard element.

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Container-friendly Alpine Linux may get Java port

Project Portola would port the JDK to the security-focused, lightweight Linux distribution

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Java and Python FTP attacks can punch holes through firewalls

The Java and Python runtimes fail to properly validate FTP URLs, which can potentially allow attackers to punch holes through firewalls to access local networks

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Oracle preps developers for Java 9 upgrade

Oracle has released a guide to help developers move from Java 8 to Java 9

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Java 9's other new enhancements, Part 2: Milling Project Coin

JEP 213 builds on Java 7's Project Coin with small language improvements and additions for your Java programs

Oracel bets Java EE future on REST

Oracle bets Java EE future on REST APIs

Oracle sees REST as key to modernizing future versions of Java EE for microservices and the cloud

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Java 9's other new enhancements, Part 1: Factory methods in Java Collections

The module system and REPL tool have received widespread attention, but Java's newest release has much more to offer. This series introduces other enhancements to Java 9, beginning with the new convenience factory methods in the Java...

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Oracle to Java devs: Stop signing JAR files with MD5

Starting in April, if a JAR file is signed with MD5, Oracle will treat it as unsigned

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New JVM language stands apart from Scala, Clojure

Eta, a Haskell dialect, can reuse Java libraries, features strong type safety, and is immutable by default

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