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Editorial Team
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Editorial Team
Asked: May 25, 20262026-05-25T17:54:09+00:00 2026-05-25T17:54:09+00:00

I am working on two connected projects, my current solution looks like that: My

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I am working on two connected projects, my current solution looks like that:

My main project is web app (spring + vaadin), which use JAR build by ant in second project. Now I have to debug the second project (JAR) but I can’t connect it 😐

I tried add my second project as “Required project” but it did not do the magic.
I tried add sources to JAR, but it did not do the magic.

Any suggestion how can I do that ?

Aaand -> my problem is on Tomcat, I want to debug both projects at the same time. And now I can not run it.

thx
Lukasz


log:

java.lang.NoClassDefFoundError: ln/wi/search/service/WIService
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389)
at java.lang.Class.getDeclaredConstructors(Class.java:1836)
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  1. Editorial Team
    Editorial Team
    2026-05-25T17:54:10+00:00Added an answer on May 25, 2026 at 5:54 pm

    In addition to adding it to the build path, you also want to add the second project to the Deployment Assembly page of the project’s Properties (assuming you’re on a recent version of Eclipse which has that capability).

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