The basic tool you need in order to create apps in Java

Java Development Kit (64-bit)

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Java JDK 8 Update 66 (64-bit)

  -  186.65 MB  -  Freeware
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Security Status

  • Latest Version

    Java JDK 23.0.1 (64-bit)

  • Operating System

    Windows Vista64 / Windows 7 64 / Windows 8 64 / Windows 10 64

  • User Rating

    Click to vote

  • Author / Product

    Oracle / External Link

  • Filename

    jdk-8u66-windows-x64.exe

  • MD5 Checksum

    e0d398a62531b785cb9c1a028ceb4e43

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 JDK 8 Update 66 (64-bit).


For those interested in downloading the most recent release of Java Development Kit (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 JDK 8 Update 66 (64-bit)

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What's new in this version:

Preloading libjsig.dylib causes deadlock when signal() is called:
- Applications need to preload the libjsig library to enable signal chaining. Previously, on OS X, after libjsig.dylib was preloaded, any call from native code to signal() caused a deadlock. This has been corrected.

VM crash when class is redefined with Instrumentation.redefineClasses:
- The JVM could crash when a class was redefined with Instrumentation.redefineClasses(). The crash could either be a segmentation fault at SystemDictionary::resolve_or_null, or an internal error with the message "tag mismatch with resolution error table". This has now been fixed .

Bug fixes:
- client-libs 2D OGL: rendering of lcd text is slow
- client-libs 2D [solaris] Incomplete 8ux fix for 8071710: libfontmanager & t2k should link against headless awt on solaris
- client-libs java.awt [macosx] Test closed/java/awt/dnd/ImageTransferTest/ImageTransferTest.html fails
- client-libs java.awt [Regression] Test java/awt/GraphicsDevice/CheckDisplayModes.java fails
- client-libs javax.accessibility JAWS crashes in WindowsAccessBridge.DLL on 32 bit 8u60 running on 32 bit Win 7
- core-libs jdk.nashorn Nashorn react.js benchmark performance regression
- deploy plugin AccessControlException with deployment cache and RMI
- globalization translation [de] Missing the link of license agreement
- hotspot jvmti assert(f == k->has_finalizer(),"inconsistent has_finalizer") with debug VM
- hotspot runtime jstack -l crashes VM when a Java mirror for a primitive type is locked
- hotspot runtime Preloading libjsig.dylib causes deadlock when signal() is called
- hotspot runtime VM crash when class is redefined with Instrumentation.redefineClasses
- install NVDA screen reader and JAWS can't read the "Look and Feel" Selections.
- security-libs org.ietf.jgss:krb5 End time checking for native TGT is wrong
- xml jaxp Numerous threads lock during XML processing while running Weblogic 12.1.3

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