DevNexus 2018 – Garbage Collection in Java 9

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Archive for the tag "java9"

DevNexus 2018 – Garbage Collection in Java 9

February 22nd, 2018 by Jeanne Boyarsky

Title: Garbage Collection in Java 9 Speakers: Chandra Guntur For more blog posts, see the DevNexus 2018 live blogging table of contents Areas of memory By thread Method area Runtime constant pool Heap Definitions Types of collectors – serial (one thread; stopping all app threads), parallel (multiple threads, but still stops all app threads), concurrent […]

DevNexus 2018 – Modules in Action

February 22nd, 2018 by Jeanne Boyarsky

Title: Modules in Action Speakers: Mark Reinhold For more blog posts, see the DevNexus 2018 live blogging table of contents Demo used Java 10 RC. Using JShell to look at modules “foo”.getClass().getModule() – module java.base “foo”.getClass().getModule().getClass() – class java.lang.Module new java.sql.Timestamp(0).getModule() – module java.sql Modules java –list-modules – ex: java.sql@10 There are 75 modules in […]

The Amazon AWS Java SQS Client is *Not* Thread-safe

February 14th, 2018 by Scott Selikoff

I recently added long polling to an Amazon SQS project that processes thousands of messages a minute. The idea was simple: Spawn N number of threads (let’s say 60) that repeatedly check an SQS queue using long polling Each thread waits for at most one message for maximum concurrency, restarting if no message is found […]