under construction
OSGi requires
that requires that if one bundle needs code in another bundle, the first needs to Import-Package the java package, and the second
need second needs to Export-Package in their MANIFEST.MF files. If some of these are missing, the program will fail somehow.
If If we are lucky, we get a ClassNotFoundException or NoClassDefFoundException listing the class that is the
problemthe problem. But sometimes, like in Hiral's case, there is no direct error message. I tried "grep"ing all the
the "import ..." statements in the .java source files, but this did not find all the required imports.
I found: http://stackoverflow.com/questions/3609982/find-out-dependencies-for-a-any-jar-bundle
and one One of the tools mentioned was bnd, which we are already using. I tried this yesterday, but it did not find all the
required the required imports. I can try the other tools mentioned in the link. Other options are: - we
- We can just live with the problem, if we have a problem, one of the first things we can look for is a
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- missing Import-Package (or Export-Package).
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- We can just list every possible Export-Package in all of our bundles (this hasn't been the problem) and
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- list every possible Import-Package for all the Export-Packages in all the used bundles.
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- We can switch to Require-Bundle (another MANIFEST.MF header) instead of Import-Package in
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- some cases - but several web sites said the Import-Package is preferable to Require-Bundle.