I have created an object inside the collection medix1 which contains one field storing a byte array (via Java driver 0.4). Now when it comes listing the collection entries via the javascript admin console, the following exception is reported:

> db.medix1.find()
Mon Jun 15 17:21:20 toval can't handle type: 5
Mon Jun 15 17:21:20 User Exception not done: toval
terminate called after throwing an instance of 'mongo::UserException'
what(): not done: toval
mongo got signal 6 (Abort trap), stack trace:
0x2960 0x95a362bb 0xffffffff 0x95aaa23a 0x95ab6679 0x9585d005 0x9585b10c 0x9585b14b 0x9585b261 0x143fc 0x6dc00 0x647cf 0xfa92f 0xfa5bc 0xed77f 0xedaf0 0xd2746 0xcea21 0x8fdb5 0x8fd0c
0 mongo 0x00002960 _Z12quitAbruptlyi + 176
1 libSystem.B.dylib 0x95a362bb _sigtramp + 43
2 ??? 0xffffffff 0x0 + 4294967295
3 libSystem.B.dylib 0x95aaa23a raise + 26
4 libSystem.B.dylib 0x95ab6679 abort + 73
5 libstdc++.6.dylib 0x9585d005 ZN9gnu_cxx27_verbose_terminate_handlerEv + 445
6 libstdc++.6.dylib 0x9585b10c __gxx_personality_v0 + 1108
7 libstdc++.6.dylib 0x9585b14b _ZSt9terminatev + 29
8 libstdc++.6.dylib 0x9585b261 __cxa_throw + 101
9 mongo 0x000143fc _ZN5mongo9uassertedEPKc + 860
10 mongo 0x0006dc00 _ZN5mongo9Convertor5tovalERKNS_11BSONElementE + 448
11 mongo 0x000647cf ZN5mongo16resolveBSONFieldEP9JSContextP8JSObjectljPS3 + 415
12 mongo 0x000fa92f js_LookupPropertyWithFlags + 881
13 mongo 0x000fa5bc js_LookupProperty + 53
14 mongo 0x000ed77f js_ValueToIterator + 2115
15 mongo 0x000edaf0 js_CallIteratorNext + 249
16 mongo 0x000d2746 js_Interpret + 11620
17 mongo 0x000cea21 js_Execute + 774
18 mongo 0x0008fdb5 JS_EvaluateUCScriptForPrincipals + 167
19 mongo 0x0008fd0c JS_EvaluateUCScript + 67