"Problems with java 8 and rapidminer studio"

Hello,

I have a problem with java 8 and rapidminer 5. I have found in this forum that rapidminer 5 not matche with java 8, so I have installed rapidminer studio, but I have these errors. The program works nice with rapidminer 5 and java 6 but when I change to rapidminer studio and java 8 I encouter these problems.

May 05, 2015 9:44:45 AM com.rapidminer.tools.I18N <clinit>
INFO: Set locale to en.
May 05, 2015 9:44:45 AM com.rapidminer.tools.PlatformUtilities logInfo
INFO: rapidminer.home is 'C:\Program Files\RapidMiner\RapidMiner Studio'.
May 05, 2015 9:44:45 AM com.rapidminer.license.ProductConstraintManager initialize
INFO: Initializing license manager.
May 05, 2015 9:44:45 AM com.rapidminer.license.ProductConstraintManager initialize
INFO: Using default license location.
May 05, 2015 9:44:46 AM com.rapidminer.license.ProductConstraintManager initialize
INFO: Registering default product.
Exception in thread "main" java.lang.NoClassDefFoundError: com/vlsolutions/swing/docking/ui/DockingUISettings
	at com.rapidminer.tools.plugin.Plugin.initAll(Plugin.java:1008)
	at com.rapidminer.RapidMiner.init(RapidMiner.java:585)
	at com.rapidminer.RapidMiner.init(RapidMiner.java:526)
	at Clustering.ModelV2.main(ModelV2.java:507)
Caused by: java.lang.ClassNotFoundException: com.vlsolutions.swing.docking.ui.DockingUISettings
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	... 4 more