failed to install unpacked bundles in Tomcat

I am working on deploying a jazz OSGI application from jetty to Tomcat. We have some plugins that need to be placed "unpackedly", that is, it's not .jar, but unpacked folders. When I deploy the service, the exception as following showed up. Anybody know whether ProvisionService supports the "unpacked" bundle's installation or not?

osgi> 09:48:40,093 ERROR eam.repository.provision
.internal.ProvisionService - CRJAZ0287I Failed to install the bundle "file:../u
pdate-site/plugins/my.example_1.0.0.jar".
java.io.FileNotFoundException: ..\update-site\plugins\org.eclipse.epf.library_1.
5.0.200902131648.jar (The system cannot find the file specified.)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:135)
at java.io.FileInputStream.<init>(FileInputStream.java:95)
at sun.net.www.protocol.file.FileURLConnection.connect(FileURLConnection
.java:85)
at sun.net.www.protocol.file.FileURLConnection.getInputStream(FileURLCon
nection.java:176)
at java.net.URL.openStream(URL.java:1042)
at com.ibm.team.repository.provision.internal.ProvisionService.installFe
ature(ProvisionService.java:379)
at com.ibm.team.repository.provision.internal.ProvisionService.installFr
omProfile(ProvisionService.java:746)
at com.ibm.team.repository.web.internal.provision.ProvisionRestServlet.i
nit(ProvisionRestServlet.java:51)