JRebel Windows RegCreateKeyEx (...) returned error code 5.

As a deep user of a Jrebel, the following issues were encountered when using the Eclipse plugin for Jrebel under WIN10:

Java.util.prefs.WindowsPreferences <init>warning:could not open/0x80000002. Windows RegCreateKeyEx (...) returned error code 5.

This is a warning, though not affected by the use, but how can a neat person tolerate!

The solution is as follows:

1. Go to your Start Menu and type into the regedit search field.
2. Navigate to PathHKEY_LOCAL_MACHINE\Software\JavaSoft
3. Right click on the JavaSoft folder and click on NewKey
4. Name the new Key and Prefs everything should work.

Lazy classmate can create a new 1.reg text file directly, save the following code copy, double-click to execute.

Windows Registry Editor Version 5.00[Hkey_local_machine\software\javasoft\prefs]

Reason:

Well I can answer this one:java.util.prefs.Preferences default implementation on Windows saves User Preferences and Syste M Preferences to the Windows Registry

Reference Links:

http://stackoverflow.com/questions/16428098/groovy-shell-warning-could-not-open-create-prefs-root-node/17552837#17552837

JRebel Windows RegCreateKeyEx (...) returned error code 5.