registry - Clover for integration testing -

i using clover generate coverage integration test coverage. clover db file(.db) in directory .clover

when running testcases, generates following files in .clover dir.

<clover3_1_6>.dbvayht_hke3br0q   <clover3_1_6>.dbvayht_hke3br0q.1    <clover3_1_6>.dbkkhjl_hke66gs6.1    <clover3_1_6>.dbkkhjl_hke66gs6    <clover3_1_6>.db.liverec.    

when try merge these , following error

error writing new clover db @ .clover/clover3_1_6.db": file ".clover/clover3_1_6.dbvayht_hke3br0q" not valid clover registry file (file magic number invalid - expected 0xcafefeed 0x3b4e0341). please regenerate. 

i tried regenerate .db file , re-run test cases. when try clover-merge still fails , same error.

my clover merge target

<target name="merge-clover" description="clover database merge">     <clover-merge initstring=".clover/clover3_1_6.db">         <cloverdbset dir=".clover">             <exclude name="**/clover3_1_6.db.liverec"/>         <include name="**/clover3_1_6.db*"/>         </cloverdbset>     </clover-merge> </target> 

am missing here can me this?

files named like: "clover.dbsome_hash_code" or "clover.dbsome_hash_code.1"

(for example clover3_1_6.dbvayht_hke3br0q or clover3_1_6.dbvayht_hke3br0q.1)

are not clover database files - these coverage recording files , there no need merge them.

if try generate report pointing clover3_1_6.db, clover automatically find coverage recording files located in same directory , merge coverage data of them.

more information: https://confluence.atlassian.com/display/clover/managing+the+coverage+database