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JDK 14 Rampdown: Build 27

Mark Reinhold’s recent post “JDK 14 is now in Rampdown Phase One” announced that “we are now in Rampdown Phase One” and that “the overall feature set is frozen.” JDK 14 Early Access Build #27 (2019/12/12) is a hefty build. In this post, I summarize some of the changes associated with JDK 14 Early Access Build 27 that are particularly ...

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Popular frameworks for big data processing in Java

java-interview-questions-answers

The big data challenge The concept of big data is understood differently in the variety of domains where companies face the need to deal with increasing volumes of data. In most of these scenarios the system under consideration needs to be designed in such a way so that it is capable of processing that data without sacrificing throughput as data ...

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Type Safe SQL in Java

Strings, String, Strings No matter if you are using frameworks like JPA, MyBatis or Spring Data JDBC you always end up declaring the SQL statements as a Java String.The problem with this approach is that you have to write tests for every statement to make sure that it is even valid SQL. There is no compile time guarantee that the ...

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Collecting application metrics with Micrometer

java-interview-questions-answers

What is Micrometer? Micrometer is a simple facade for collecting metrics inside Java applications in a vendor neutral way. You can think of SLF4J for metrics. Micrometer has built-in support for many different metrics backends, including Atlas, Datadog, Elastic, JMX and much more. In this post we will see how we can collect metrics with Micrometer in Java applications. Micrometer ...

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[MEGA DEAL] KeepSolid SmartDNS: Lifetime Subscription (83%)

This Easy-to-Use DNS Proxy App Lets You Watch Favorite Shows Without Lags, Delays, Geo-Restriction & Platform Limit Hey fellow geeks, This week, on our JCG Deals store, we have another extreme offer. We are offering a massive 83% off on KeepSolid SmartDNS: Lifetime Subscription. Get it now with only $39,99, instead of the original price of $230,40 Enjoy your favorite ...

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Project loom

WHY LOOM? One of the drivers behind streams in Java 8 was concurrent programming. In your stream pipeline, you specify what you want to have done, and your tasks are automatically distributed onto the available processors: var result = myData .parallelStream() .map(someBusyOperation) .reduce(someAssociativeBinOp) .orElse(someDefault); Parallel streams work great when the data structure is cheap to split into parts and the ...

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