registryValueExists() throws exception if key does not exist

[jansohn]

Checking the existence of a registry value throws an exception if the key does not exist:

Advapi32Util.registryValueExists(WinReg.HKEY_CURRENT_USER, "FAIL", "Path");

Stack trace:

com.sun.jna.platform.win32.Win32Exception: The handle is invalid.
	at com.sun.jna.platform.win32.Advapi32Util.registryValueExists(Advapi32Util.java:661)
	at com.sun.jna.platform.win32.Advapi32Util.registryValueExists(Advapi32Util.java:612)

I expected it to simply return false, especially as the exception occurs in the finally block when cleaning up. Can be worked around by first checking the existence of the registry key.

• JNA 5.1.0
• Oracle JDK 1.8.0_181 (64bit)
• Windows 10 / Windows Server 2016 (64bit)

PS: I don't have a Google account and I don't want to create one. As there are no alternative ways to participate in the mailing list I directly created the issue here.

[matthiasblaesing]

Fixed via 15d6208. Thanks for reporting.