[ ์๋ฌ ] javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target [ Solution ]cmd์คํํ ์๋ ๋ช ๋ น์ด ์ ๋ ฅ// Java SSL์ธ์ฆ์ ๋ฑ๋กํ๊ธฐkeytool.exe -import -alias keytool์๋ฑ๋ก๋ ๋ณ์นญ์์ฑ -keystore "JAVA Home๊ฒฝ๋ก์ lib/security/cacerts๊ฒฝ๋ก ์์ฑ" -storepass changeit -file crt์ธ์ฆ์ํ์ผ์๊ฒฝ๋ก์์ฑ์์)keytool.exe -import -al..