The following messages appear to be a consequence of using inner classes.
This is from the latest jcov in the latest (2.1.2) sqe-tools workspace.

Duplicate class javasoft.sqe.javatest.tool.StatusPanel. with older timestamp 941492356796 encountered. Dropped.
Duplicate class javasoft.sqe.javatest.tool.StatusPanel. with older timestamp 941492356891 encountered. Dropped.
Duplicate class javasoft.sqe.javatest.tool.StatusPanel. with older timestamp 941492357086 encountered. Dropped.
Duplicate class javasoft.sqe.javatest.tool.StatusPanel. with older timestamp 941492357159 encountered. Dropped.
Duplicate class javasoft.sqe.javatest.tool.StatusPanel. with older timestamp 941492357350 encountered. Dropped.
Duplicate class javasoft.sqe.javatest.TestFinder. with older timestamp 941491566746 encountered. Dropped.
Duplicate class javasoft.sqe.javatest.Harness$Trace with older timestamp 941488681619 encountered. Dropped.
Duplicate class javasoft.sqe.javatest.Harness. with older timestamp 941491551746 encountered. Dropped.
Duplicate class javasoft.sqe.javatest.Harness. with older timestamp 941491551675 encountered. Dropped.
Duplicate class javasoft.sqe.javatest.Harness. with older timestamp 941491551961 encountered. Dropped.
Duplicate class javasoft.sqe.javatest.Harness. with older timestamp 941491551833 encountered. Dropped.



looking inside the data file, the classes that are complained about have
spaces in the name.


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On further examination, there do appear to be duplicate lines
in the file. For example, grepping for Harness.*Trace I find the following
lines
gzilla% grep -n 'CLASS.*Harness.*Trace' *.jcv
31397:CLASS: javasoft.sqe.javatest.Harness. Trace
38663:CLASS: javasoft.sqe.javatest.Harness$Trace
40007:CLASS: javasoft.sqe.javatest.Harness$Trace
gzilla%