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Q&A with Aleksey Shipilev on Compact Strings Optimization in OpenJDK 9
OpenJDK 9 introduces the compact strings optimization. InfoQ interviews Oracle Java performance engineer Aleksey Shipilev to understand more about this optimization and its performance impact.
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New Java Version - it's not JDK 1.9
JDK Enhancement Proposal (JEP) 223 is a new JDK versioning scheme to make it easier to distinguish major, minor, and security releases. It's simpler, more intuitive, easier to parse, and aligns with current industry practices, in particular Semantic Versioning. For example, if JDK 1.7.0_65-b20 (7u65) used this new versioning scheme, the version string would be JDK 7.6.15+20 (7.6.15).
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Oracle Releases Java 8 at EclipseCon
Today at EclipseCon, Oracle announced the launch of the Java 8 platform, bringing Lambdas and Streams to the language as well as fixing some long-standing issues with the JVM. Read on to find out more about the release.
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Java Time API Now In Java 8
ThreeTen, the reference implementation of JSR 310 Date and Time API, is now included in JDK 8 build 75. The Java Time API for JDK 8 is under the package java.time, moving away from the javax.time package of earlier implementations. All the Java Time classes are immutable and thread-safe, based on the ISO 8601 calendar system, the de facto world calendar following the proleptic Gregorian rules.
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JavaSE 7 JSR Approved Despite Division
Oracle has announced that the JavaSE 7 governing JSR (336) has passed the public review ballot. Google voted against the vote, Werner Keil abstained, and no vote was received from Credit Suisse. Many others adding their concerns regarding the ongoing licensing dispute between Sun/Oracle and Apache.
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Eclipse and Java 6u21 problems
Oracle recently released Java 6 update 21 which had a small but innocuous change in the way that the java.dll was created. Unfortunately, this change impacted Eclipse's startup; but a fix is on the way.
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The Massive, Monolithic JDK should become Modular
Mark Reinhold, Principal Engineer at Sun Microsystems, has been advocating about how “cool” would be for the Sun JDK to be modular. He’s is putting up a good argument about how the complexity is hurting the platform and how the Java Kernel and Quickstarter features in the JDK 6u10 release just address the symptoms of JDK’s long-term interconnected growth.