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Java Runtime Environment (64-bit)

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Java Runtime Environment 1.6.0.21 (64-bit)

  -  15.37 MB  -  Freeware
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Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system.

Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of Java Runtime Environment 1.6.0.21 (64-bit).


For those interested in downloading the most recent release of Java Runtime Environment (64-bit) or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


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Download Java Runtime Environment 1.6.0.21 (64-bit)

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What's new in this version:

# OlsonData 2010i

* Java SE 6u21 contains Olson time zone data version 2010i.

# Additional Supported System Configurations
For Java SE 6u21, support has been added for the following system configurations:
* Oracle Enterprise Linux 5.5
* Oracle Enterprise Linux 5.4
* Oracle Enterprise Linux 4.8
* Red Hat Enterprise Linux 5.5
* Red Hat Enterprise Linux 5.4
* Oracle VM 2.2.0.0.0
* Google Chrome 4.0

# Support for Customized Loading Progress Indicators

* With Java SE 6u21, you can now enhance the loading experience of an application by providing a customized loading progress indicator (sometimes referred to as a progress bar) to better inform the end user of how much of the application has been downloaded during startup.

# Java Hotspot VM 17.0

* Java SE 6u21 includes version 17.0 of the Java HotSpot Virtual Machine with improvements to overall quality and features such as compressed object pointers, escape analysis-based optimization, code cache management, the Concurrent Mark-Sweep garbage collector and its successor, the Garbage First (G1) garbage collector. (G1 continues to be available in Early Access via the -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC flag.

# Java VisualVM
Java VisualVM based on VisualVM 1.2.2 is included in Java SE 6u21. This release introduces the following features and enhancements:
* HeapWalker performance improvements
* VisualVM-Sampler performance improvements
* BTrace4VisualVM plugin introduces BTrace 1.1
* Profiling engine bugfixes
* Built on NetBeans Platform 6.8

# Security Exception Upon Drag-and-Drop
* Drag-and-drop would, under certain circumstances, result in a null value being passed instead of the expected data.
* Java SE 6u21 provides a fix that lets drag-and-drop operations succeed for signed applications or applications with the accessClipboard permission granted.

# Various Bug Fixes

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