I have very simple assembly descriptor
You need to filter the dependencySet
as well.
Try updating your assembly descriptor as
<dependencySet>
<outputDirectory>/</outputDirectory>
<useProjectArtifact>true</useProjectArtifact>
<unpack>true</unpack>
<scope>runtime</scope>
<unpackOptions>
<excludes>
<exclude>**/dbAccess.*</exclude>
</excludes>
</unpackOptions>
</dependencySet>