Waffle deadlock

"https-catalina-exec-1" - Thread t@179
   java.lang.Thread.State: BLOCKED
	at com.sun.jna.Native.getStructureAlignment(Native.java:498)
	- waiting to lock <dbf376> (a java.util.WeakHashMap) owned by "https-catalina-exec-31" t@209
	at com.sun.jna.Structure.setAlignType(Structure.java:260)
	at com.sun.jna.Structure.<init>(Structure.java:184)
	at com.sun.jna.Structure.<init>(Structure.java:180)
	at com.sun.jna.Structure.<init>(Structure.java:167)
	at com.sun.jna.Structure.<init>(Structure.java:159)
	at com.sun.jna.platform.win32.WinNT$PSID.<init>(WinNT.java:333)
	at com.sun.jna.platform.win32.WinNT$PSID$ByReference.<init>(WinNT.java:326)
	at sun.reflect.GeneratedConstructorAccessor203.newInstance(Unknown Source)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
	at java.lang.Class.newInstance(Class.java:374)
	at com.sun.jna.Structure.newInstance(Structure.java:1491)
	at com.sun.jna.Structure.updateStructureByReference(Structure.java:593)
	at com.sun.jna.Pointer.getValue(Pointer.java:369)
	at com.sun.jna.Structure.readField(Structure.java:626)
	at com.sun.jna.Structure.read(Structure.java:503)
	at com.sun.jna.Structure.toArray(Structure.java:1344)
	at com.sun.jna.Structure.toArray(Structure.java:1362)
	at com.sun.jna.platform.win32.WinNT$TOKEN_GROUPS.getGroups(WinNT.java:449)
	at com.sun.jna.platform.win32.Advapi32Util.getTokenGroups(Advapi32Util.java:341)
	at waffle.windows.auth.impl.WindowsIdentityImpl.getUserGroups(Unknown Source)
	at waffle.windows.auth.impl.WindowsIdentityImpl.isGuest(Unknown Source)
	at waffle.spring.NegotiateSecurityFilter.doFilter(Unknown Source)