JDKP Java Error

Uggers · Mar 3rd 2018

Ever since a recent Java update I cannot start JDKP properly.

I get this error when attempting to start the program.

Code

Mar 03, 2018 12:41:51 PM java.util.prefs.WindowsPreferences <init>
WARNING: Could not open/create prefs root node Software\JavaSoft\Prefs at root 0x80000002. Windows RegCreateKeyEx(...) returned error code 5.
Exception in thread "AWT-EventQueue-2" java.lang.ExceptionInInitializerError
    at com.eqdkplus.jdkp.output.WoWGetDKPInterface.getStandardWindowsExecutable(WoWGetDKPInterface.java:231)
    at com.eqdkplus.jdkp.output.GameInterface.getPlatformExecutable(GameInterface.java:82)
    at com.eqdkplus.jdkp.gui.Gui.fillFieldsByFormat(Gui.java:452)
    at com.eqdkplus.jdkp.gui.Gui.access$2000(Gui.java:61)
    at com.eqdkplus.jdkp.gui.Gui$7.actionPerformed(Gui.java:867)
    at java.desktop/javax.swing.JComboBox.fireActionEvent(Unknown Source)
    at java.desktop/javax.swing.JComboBox.contentsChanged(Unknown Source)
    at java.desktop/javax.swing.AbstractListModel.fireContentsChanged(Unknown Source)
    at java.desktop/javax.swing.DefaultComboBoxModel.setSelectedItem(Unknown Source)
    at java.desktop/javax.swing.DefaultComboBoxModel.addElement(Unknown Source)
    at java.desktop/javax.swing.JComboBox.addItem(Unknown Source)
    at com.eqdkplus.jdkp.gui.Gui$1.addItem(Gui.java:162)
    at com.eqdkplus.jdkp.gui.Gui$1.addItem(Gui.java:141)
    at com.eqdkplus.jdkp.gui.Gui.<init>(Gui.java:270)
    at com.eqdkplus.jdkp.main.Main$1Starter.run(Main.java:59)
    at java.desktop/java.awt.event.InvocationEvent.dispatch(Unknown Source)
    at java.desktop/java.awt.EventQueue.dispatchEventImpl(Unknown Source)
    at java.desktop/java.awt.EventQueue.access$500(Unknown Source)
    at java.desktop/java.awt.EventQueue$3.run(Unknown Source)
    at java.desktop/java.awt.EventQueue$3.run(Unknown Source)
    at java.base/java.security.AccessController.doPrivileged(Native Method)
    at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
    at java.desktop/java.awt.EventQueue.dispatchEvent(Unknown Source)
    at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
    at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
    at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
    at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.desktop/java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make private static native int[] java.util.prefs.WindowsPreferences.WindowsRegOpenKey(int,byte[],int) accessible: module java.prefs does not "opens java.util.prefs" to unnamed module @3cb98d41
    at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(Unknown Source)
    at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(Unknown Source)
    at java.base/java.lang.reflect.Method.checkCanSetAccessible(Unknown Source)
    at java.base/java.lang.reflect.Method.setAccessible(Unknown Source)
    at com.eqdkplus.jdkp.util.RegistryReader.<clinit>(RegistryReader.java:50)
    ... 29 more

Display More

I appreciate it might be a problem on my PC, but I'm not sure were to troubleshoot if that is the case.

I did try re-installing Java again but no luck.

GodMod · Mar 3rd 2018

Restart your computer and check the permissions of java, as it is not possible to write registry keys.

Uggers · Mar 3rd 2018

Ok, I updated it and read an article about permissions, its just reporting this now

Code

Exception in thread "AWT-EventQueue-2" java.lang.ExceptionInInitializerError
    at com.eqdkplus.jdkp.output.WoWGetDKPInterface.getStandardWindowsExecutable(WoWGetDKPInterface.java:231)
    at com.eqdkplus.jdkp.output.GameInterface.getPlatformExecutable(GameInterface.java:82)
    at com.eqdkplus.jdkp.gui.Gui.fillFieldsByFormat(Gui.java:452)
    at com.eqdkplus.jdkp.gui.Gui.access$2000(Gui.java:61)
    at com.eqdkplus.jdkp.gui.Gui$7.actionPerformed(Gui.java:867)
    at java.desktop/javax.swing.JComboBox.fireActionEvent(Unknown Source)
    at java.desktop/javax.swing.JComboBox.contentsChanged(Unknown Source)
    at java.desktop/javax.swing.AbstractListModel.fireContentsChanged(Unknown Source)
    at java.desktop/javax.swing.DefaultComboBoxModel.setSelectedItem(Unknown Source)
    at java.desktop/javax.swing.DefaultComboBoxModel.addElement(Unknown Source)
    at java.desktop/javax.swing.JComboBox.addItem(Unknown Source)
    at com.eqdkplus.jdkp.gui.Gui$1.addItem(Gui.java:162)
    at com.eqdkplus.jdkp.gui.Gui$1.addItem(Gui.java:141)
    at com.eqdkplus.jdkp.gui.Gui.<init>(Gui.java:270)
    at com.eqdkplus.jdkp.main.Main$1Starter.run(Main.java:59)
    at java.desktop/java.awt.event.InvocationEvent.dispatch(Unknown Source)
    at java.desktop/java.awt.EventQueue.dispatchEventImpl(Unknown Source)
    at java.desktop/java.awt.EventQueue.access$500(Unknown Source)
    at java.desktop/java.awt.EventQueue$3.run(Unknown Source)
    at java.desktop/java.awt.EventQueue$3.run(Unknown Source)
    at java.base/java.security.AccessController.doPrivileged(Native Method)
    at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
    at java.desktop/java.awt.EventQueue.dispatchEvent(Unknown Source)
    at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
    at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
    at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
    at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.desktop/java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make private static native int[] java.util.prefs.WindowsPreferences.WindowsRegOpenKey(int,byte[],int) accessible: module java.prefs does not "opens java.util.prefs" to unnamed module @6a139932
    at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(Unknown Source)
    at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(Unknown Source)
    at java.base/java.lang.reflect.Method.checkCanSetAccessible(Unknown Source)
    at java.base/java.lang.reflect.Method.setAccessible(Unknown Source)
    at com.eqdkplus.jdkp.util.RegistryReader.<clinit>(RegistryReader.java:50)
    ... 29 more

Display More

It might be related to this

https://stackoverflow.com/ques…-make-member-accessible-m

and Java 9

GodMod · Mar 3rd 2018

Yes, that might be. With java8, jdkp should work without problems.

Uggers · Mar 3rd 2018

took a while but downgraded back to 8 and it worked again

Bit of a pain as I need 9 for some applications. I'll have to figure if jdkp is worth it if i can't use 9

wallenium · Mar 4th 2018

support for 9 will be fixed by kirax i guess

kirax · Mar 14th 2018

Sorry for the late response.

Two things on this:

- The registry error has nothing to do with actual permissions. It occurs because some registry key cannot be found. You can ignore this message (it does not affect JDKP functionality) or do the following:

# start registry editor with administrator privileges and create a key (no values needed) depending on system architecture:

# for 32bit java running on x64 systems: HKEY_LOCAL_MACHINE\Software\WoW6432Node\JavaSoft\Prefs

# all other cases: HKEY_LOCAL_MACHINE\Software\JavaSoft\Prefs

- Regarding Java9: I currently have no plans to support Java 9. That's mainly because time is limited at the moment. If single Java 8 is no option for you I can offer you a plain JAR package of JDKP. With that you can install Java 8 side by side with Java 9 and use a batch-file to explicitly use Java 8 for JDKP. Right now I'm unable to say when Java 9 will be supported (if ever). Sorry.

GodMod · Mar 15th 2018

Kirax, can you please upload the source code to the github repo?

https://github.com/EQdkpPlus/tool-jdkp

So maybe I can take a look...

kirax · Mar 15th 2018

Quote from GodMod

Kirax, can you please upload the source code to the github repo?

https://github.com/EQdkpPlus/tool-jdkp

So maybe I can take a look...

done..

Uggers · Mar 25th 2018

Thanks for taking a look,

Looks like we're already rolling out into Java 10 now as well so any updates would be greatly appreciate to the App

GodMod · Mar 26th 2018

The attached version should work with Java9 and Java10. Just execute the Jar-File.

Note: this will not remove the warning with the Registry.

Uggers · Mar 26th 2018

Perfect, thanks GodMod, worked fine on Java 10

GodMod · Mar 26th 2018

Great. I am currently working on a JDKP Version that supports EQdkp Plus 2.3, as we changed the API Authentication there (no more user/password, but API Token instead).

GodMod · Mar 27th 2018

You will now find all downloads and infos for JDKP at https://eqdkp-plus.eu/en/jdkp

GodMod · Mar 28th 2018

Uggers Can you please try the JDKP Version 2.0 and give feedback? Thanks!

JDKP Java Error

GodMod Jan 31st 2020

Participate now!

Share

Tags

Quicklinks

News

Follow us on

Support us