问题
I downloaded jhipster registry version 4.0.0, imported and run the registry successfully, when I open localhost:8761 I am getting request cannot be proceed error, there is no error information also.
When I used command mvnw I am getting an exception in thread "main" javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target.
回答1:
One way is to use http protocol instead of https.
To do this go into your project directory > .mvn > wrapper > maven-wrapper.properties.
You will find something like distributionUrl=http://repo1.maven.org/maven2/org/apache/maven/apache-maven/3.5.3/apache-maven-3.5.3-bin.zip.
Change this url to using http instead of https.
Other solutions are more complex but there is no harm in trying.
Problems connecting via HTTPS/SSL through own Java client
Calling web service: javax.net.ssl.SSLException: Received fatal alert: protocol_version
javax.net.ssl.SSLException: Received fatal alert: protocol_version
回答2:
Simply pass "-Dhttps.protocols=TLSv1.2" as extra argument
来源：https://stackoverflow.com/questions/51588896/request-cannot-be-proceed-error-in-jhipster-registry-version-4-0-0