[Ikvm-developers] [Using SWT3.1M1] broken :(

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Looks like something in that last snapshot broke something on mono/linux.
I cannot run even my HelloWorldSWT program anymore.  It just
bombs with a NullPointer exception.  Here is a stack trace with --trace=all
in use [at end], but note that it isn't consistient (doesn't always 
happen at the same point
each time it is run).

A very similar simple SWT program actually causes a seg fault.  The only
thing I could get out of the debugger from this was:
#0  0x005d3402 in ?? ()
#1  0x005bd950 in pthread_cond_timedwait@@GLIBC_2.3.2 () from 
/lib/tls/libpthread.so.0
#2  0x0074b68c in mono_method_full_name () from /usr/lib/libmono.so.0
#3  0x007593f8 in mono_once () from /usr/lib/libmono.so.0
#4  0x006fdb9a in mono_gchandle_free () from /usr/lib/libmono.so.0
#5  0x0070ce25 in mono_monitor_exit () from /usr/lib/libmono.so.0
#6  0x0075897d in mono_once () from /usr/lib/libmono.so.0
#7  0x00776442 in GC_end_blocking () from /usr/lib/libmono.so.0
#8  0x005ba98c in start_thread () from /lib/tls/libpthread.so.0
#9  0x0031716a in clone () from /lib/tls/libc.so.6

--trace=all & stack trace (HelloWorldSWT program):

. . . . . ENTER: Frame:Leave ()(value:0xf5bba7fc, )
. . . . . . ENTER: IKVM.Runtime.JNIEnv:UnwrapRef 
(intptr)(value:0x9c13008, 0x2c72, )
. . . . . . . ENTER: System.IntPtr:ToInt32 ()(value:0xf5bba784, )
. . . . . . . LEAVE: System.IntPtr:ToInt32 ()result=11378
. . . . . . . ENTER: IKVM.Runtime.JNIEnv:GetLocalRefs ()(value:0x9c13008, )
. . . . . . . . ENTER: 
System.Runtime.InteropServices.GCHandle:get_Target ()(value:0x9c1300c, )
. . . . . . . . . ENTER: (wrapper managed-to-native) 
System.Runtime.InteropServices.GCHandle:GetTarget (int)(162442008, )
. . . . . . . . . . ENTER: (wrapper runtime-invoke) 
System.Object:runtime_invoke_void 
(object,intptr,intptr,intptr)([System.NullReferenceException:0x947a2a0], 
(nil), (nil), 0x800c50, )
. . . . . . . . . . . ENTER: System.NullReferenceException:.ctor 
()(this:0x947a2a0[System.NullReferenceException HelloWorldSWT.exe], )
. . . . . . . . . . . . ENTER: Locale:GetText 
(string)([STRING:0x97425f0:A null value was found where an object 
instance was required.], )
. . . . . . . . . . . . LEAVE: Locale:GetText 
(string)[STRING:0x97425f0:A null value was found where an object 
instance was required.]
. . . . . . . . . . . LEAVE: System.NullReferenceException:.ctor ()
. . . . . . . . . . LEAVE: (wrapper runtime-invoke) 
System.Object:runtime_invoke_void 
(object,intptr,intptr,intptr)[OBJECT:(nil)]
EXCEPTION handling: NullReferenceException
. . . . . . . . . . ENTER: (wrapper runtime-invoke) 
System.Object:runtime_invoke_string 
(object,intptr,intptr,intptr)([System.NullReferenceException:0x947a2a0], 
(nil), (nil), 0x800d70, )
. . . . . . . . . . . ENTER: System.Exception:ToString 
()(this:0x947a2a0[System.NullReferenceException HelloWorldSWT.exe], )
. . . . . . . . . . . . ENTER: System.Text.StringBuilder:.ctor 
(string)(this:0x9489810[System.Text.StringBuilder HelloWorldSWT.exe], 
[STRING:0x9b48f50:System.NullReferenceException], )
. . . . . . . . . . . . . ENTER: System.Text.StringBuilder:.ctor 
(string,int,int,int)(this:0x9489810[System.Text.StringBuilder 
HelloWorldSWT.exe], [STRING:0x9b48f50:System.NullReferenceException], 0, 
29, 29, )
. . . . . . . . . . . . . . ENTER: (wrapper managed-to-native) 
System.String:InternalAllocateStr (int)(29, )
. . . . . . . . . . . . . . LEAVE: (wrapper managed-to-native) 
System.String:InternalAllocateStr (int)[STRING:0x9b48f00:]
. . . . . . . . . . . . . . ENTER: (wrapper managed-to-native) 
System.String:InternalStrcpy 
(string,int,string,int,int)([STRING:0x9b48f00:], 0, 
[STRING:0x9b48f50:System.NullReferenceException], 0, 29, )
. . . . . . . . . . . . . . LEAVE: (wrapper managed-to-native) 
System.String:InternalStrcpy (string,int,string,int,int)
. . . . . . . . . . . . . LEAVE: System.Text.StringBuilder:.ctor 
(string,int,int,int)
. . . . . . . . . . . . LEAVE: System.Text.StringBuilder:.ctor (string)
. . . . . . . . . . . . ENTER: System.Text.StringBuilder:Append 
(string)(this:0x9489810[System.Text.StringBuilder HelloWorldSWT.exe], 
[STRING:0x9489858:: ], )
. . . . . . . . . . . . . ENTER: 
System.Text.StringBuilder:InternalEnsureCapacity 
(int)(this:0x9489810[System.Text.StringBuilder HelloWorldSWT.exe], 31, )
. . . . . . . . . . . . . . ENTER: (wrapper managed-to-native) 
System.String:InternalAllocateStr (int)(58, )
. . . . . . . . . . . . . . LEAVE: (wrapper managed-to-native) 
System.String:InternalAllocateStr (int)[STRING:0x9742390:]
. . . . . . . . . . . . . . ENTER: (wrapper managed-to-native) 
System.String:InternalStrcpy 
(string,int,string,int,int)([STRING:0x9742390:], 0, 
[STRING:0x9b48f00:System.NullReferenceException], 0, 29, )
. . . . . . . . . . . . . . LEAVE: (wrapper managed-to-native) 
System.String:InternalStrcpy (string,int,string,int,int)
. . . . . . . . . . . . . LEAVE: 
System.Text.StringBuilder:InternalEnsureCapacity (int)
. . . . . . . . . . . . . ENTER: (wrapper managed-to-native) 
System.String:InternalStrcpy 
(string,int,string)([STRING:0x9742390:System.NullReferenceException], 
29, [STRING:0x9489858:: ], )
. . . . . . . . . . . . . LEAVE: (wrapper managed-to-native) 
System.String:InternalStrcpy (string,int,string)
. . . . . . . . . . . . LEAVE: System.Text.StringBuilder:Append 
(string)[System.Text.StringBuilder:0x9489810]
. . . . . . . . . . . . ENTER: System.Exception:get_Message 
()(this:0x947a2a0[System.NullReferenceException HelloWorldSWT.exe], )
. . . . . . . . . . . . LEAVE: System.Exception:get_Message 
()[STRING:0x9747b80:Object reference not set to an instance of an object]
. . . . . . . . . . . . ENTER: System.Text.StringBuilder:Append 
(string)(this:0x9489810[System.Text.StringBuilder HelloWorldSWT.exe], 
[STRING:0x9747b80:Object reference not set to an instance of an object], )
. . . . . . . . . . . . . ENTER: 
System.Text.StringBuilder:InternalEnsureCapacity 
(int)(this:0x9489810[System.Text.StringBuilder HelloWorldSWT.exe], 83, )
. . . . . . . . . . . . . . ENTER: (wrapper managed-to-native) 
System.String:InternalAllocateStr (int)(116, )
. . . . . . . . . . . . . . LEAVE: (wrapper managed-to-native) 
System.String:InternalAllocateStr (int)[STRING:0x90449c0:]
. . . . . . . . . . . . . . ENTER: (wrapper managed-to-native) 
System.String:InternalStrcpy 
(string,int,string,int,int)([STRING:0x90449c0:], 0, 
[STRING:0x9742390:System.NullReferenceException: ], 0, 31, )
. . . . . . . . . . . . . . LEAVE: (wrapper managed-to-native) 
System.String:InternalStrcpy (string,int,string,int,int)
. . . . . . . . . . . . . LEAVE: 
System.Text.StringBuilder:InternalEnsureCapacity (int)
. . . . . . . . . . . . . ENTER: (wrapper managed-to-native) 
System.String:InternalStrcpy 
(string,int,string)([STRING:0x90449c0:System.NullReferenceException: ], 
31, [STRING:0x9747b80:Object reference not set to an instance of an 
object], )
. . . . . . . . . . . . . LEAVE: (wrapper managed-to-native) 
System.String:InternalStrcpy (string,int,string)
. . . . . . . . . . . . LEAVE: System.Text.StringBuilder:Append 
(string)[System.Text.StringBuilder:0x9489810]
. . . . . . . . . . . . ENTER: System.Text.StringBuilder:Append 
(string)(this:0x9489810[System.Text.StringBuilder HelloWorldSWT.exe], 
[STRING:0x8d74f30:], )
. . . . . . . . . . . . . ENTER: (wrapper managed-to-native) 
System.String:InternalStrcpy 
(string,int,string)([STRING:0x90449c0:System.NullReferenceException: 
Object reference not set to an instance of an object], 83, 
[STRING:0x8d74f30:], )
. . . . . . . . . . . . . LEAVE: (wrapper managed-to-native) 
System.String:InternalStrcpy (string,int,string)
. . . . . . . . . . . . LEAVE: System.Text.StringBuilder:Append 
(string)[System.Text.StringBuilder:0x9489810]
. . . . . . . . . . . . ENTER: (wrapper managed-to-native) 
System.Environment:get_NewLine ()()
. . . . . . . . . . . . LEAVE: (wrapper managed-to-native) 
System.Environment:get_NewLine ()[STRING:0x9bd9bf0:
]
. . . . . . . . . . . . ENTER: System.Text.StringBuilder:Append 
(string)(this:0x9489810[System.Text.StringBuilder HelloWorldSWT.exe], 
[STRING:0x9bd9bf0:
], )
. . . . . . . . . . . . . ENTER: (wrapper managed-to-native) 
System.String:InternalStrcpy 
(string,int,string)([STRING:0x90449c0:System.NullReferenceException: 
Object reference not set to an instance of an object], 83, 
[STRING:0x9bd9bf0:
], )
. . . . . . . . . . . . . LEAVE: (wrapper managed-to-native) 
System.String:InternalStrcpy (string,int,string)
. . . . . . . . . . . . LEAVE: System.Text.StringBuilder:Append 
(string)[System.Text.StringBuilder:0x9489810]
. . . . . . . . . . . . ENTER: System.Text.StringBuilder:Append 
(string)(this:0x9489810[System.Text.StringBuilder HelloWorldSWT.exe], 
[STRING:0x97f0aa0:in (unmanaged) (wrapper managed-to-native) 
System.Runtime.InteropServices.GCHandle:GetTarget (int)
in <0x00004> (wrapper managed-to-native) 
System.Runtime.InteropServices.GCHandle:GetTarget (int)
in <0x00025> System.Runtime.InteropServices.GCHandle:get_Target ()
in <0x00022> IKVM.Runtime.JNIEnv:GetLocalRefs ()
in <0x00034> IKVM.Runtime.JNIEnv:UnwrapRef (intptr)
in <0x00035> Frame:Leave ()
in <0x00139> org.eclipse.swt.internal.gtk.OS:gtk_main_iteration ()
in <0x00180> org.eclipse.swt.widgets.Shell:setVisible (bool)
in <0x00036> org.eclipse.swt.widgets.Shell:open ()
in <0x00065> Snippet1:Main ()
], )