Issue #1199: java.lang.ClassCastException: com.objectdb.o.RFV cannot be cast to com.objectdb.o.RSV

The following query:

SELECT count(m) FROM Message m WHERE m.attachments.original=:template

is generating this exception:

[ObjectDB 2.5.1_05] Unexpected exception (Error 990)
  Generated by Java HotSpot(TM) 64-Bit Server VM 1.6.0_32 (on Windows 7 6.1).
Please report this error on http://www.objectdb.com/database/issue/new
com.objectdb.o.InternalException: java.lang.ClassCastException: com.objectdb.o.RFV cannot be cast to com.objectdb.o.RSV
java.lang.ClassCastException: com.objectdb.o.RFV cannot be cast to com.objectdb.o.RSV
at com.objectdb.o.RSV.compareTo(RSV.java:158)
at com.objectdb.o.RFV.compareTo(RFV.java:138)
at com.objectdb.o.VAL.J(VAL.java:789)
at com.objectdb.o.EXR$e.c(EXR.java:190)
at com.objectdb.o.VAR.aA(VAR.java:864)
at com.objectdb.o.VAR.az(VAR.java:807)
at com.objectdb.o.XQI.Vt(XQI.java:69)
at com.objectdb.o.TQI.Vt(TQI.java:67)
at com.objectdb.o.MQI.Vt(MQI.java:143)
at com.objectdb.o.GQI.Uu(GQI.java:130)
at com.objectdb.o.PRG.ag(PRG.java:679)
at com.objectdb.o.PRG.af(PRG.java:553)
at com.objectdb.o.QRM.U6(QRM.java:265)
at com.objectdb.o.MST.U6(MST.java:933)
at com.objectdb.o.WRA.U6(WRA.java:293)
at com.objectdb.o.WSM.U6(WSM.java:113)
at com.objectdb.o.STC.r(STC.java:450)
at com.objectdb.o.SHN.aj(SHN.java:489)
at com.objectdb.o.SHN.K(SHN.java:156)
at com.objectdb.o.HND.run(HND.java:132)
at java.lang.Thread.run(Thread.java:662)

(The referenced template is id#156591; the expected result is 0)

Updated: I found that I get essentially the same error when the parameter type is a Drill instead of a Template.

Updated: Sample data file removed now that the issue is resolved.

Just tried with version 2.5.2 and got no exception. Could you please try it?

Thank you, yes this issue is now resolved in today's 2.5.2 build.