Notes when using eclipse to export jar packages

After several years, osgi has recently been used to plan to implement an osgi-based SWT plug-in framework. For this reason, the declarative service example has been configured according to the instructions on the network, however, the test failed for a few days in Felix. Yesterday, the test was successful in the eclipse console, but it still failed in Felix. You can use both available samples from the network, finally, I suspect that the content of the jar package I released is different. After careful check, it turns out to be manifest. mf is inconsistent with the jar package in the project. It turns out that an empty manifest is automatically generated by default when the jar package is exported under Java in eclipse. mf hits the jar package. I have worked hard for several days to avoid such a small problem in the future.