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Verify eIDAS client certificate(qwac) on server side

hello. I try to create java server which can be verificat client qwac certificate (TSL). I load to trustcacerts certificate from all urls from https://ec.europa.eu/tools/lotl/eu-lotl.xml in tags , than via postman try to make request to https on my server (before connect pfx of qwac certificate), but get an error: SSL Error: Unable to verify the first certificate.
Please help, what I make wrong and how to verify client certificate? Thanks!