1-The first step is to generate a keystore using keytool. -validity 3650 means the certificate is valid for 3650 days.

keytool -keystore mykey.jks -alias mykey -keyalg RSA -keysize 2048 -sigalg SHA256withRSA -genkey -validity 3650

2- in JettyServerBasedRunner.java in method execute apply below changes:

2.1-comment below lines

//ServerConnector serverConnector = new ServerConnector(server);
//serverConnector.setIdleTimeout(360000);
//serverConnector.setPort(port);
// Set the connectors
//server.addConnector(serverConnector);

2.2-add below lines and set path of mykey.jks and your key store password in code

HttpConfiguration http_config = new HttpConfiguration();
http_config.setSecureScheme("https");
http_config.setSecurePort(8443);

HttpConfiguration https_config = new HttpConfiguration(http_config);
https_config.addCustomizer(new SecureRequestCustomizer());

SslContextFactory sslContextFactory = new SslContextFactory("path of mykey.jks");
sslContextFactory.setKeyStorePassword("your key store password");

ServerConnector httpsConnector = new ServerConnector(server,
        new SslConnectionFactory(sslContextFactory, "http/1.1"),
        new HttpConnectionFactory(https_config));
httpsConnector.setPort(8443);
httpsConnector.setIdleTimeout(50000);

server.setConnectors(new Connector[]{ httpsConnector });

3- in mycollab.properties apply below changes: Change http to https

cdn.url=https://%s:%d/assets/
app.url=https://%s:%d/
resource.downloadUrl=https://%s:%d/file/

4-maven -> clean,install

5-run

references:

https://newfivefour.com/jetty-9-ssl-https.html

https://medium.com/vividcode/enable-https-support-with-self-signed-certificate-for-embedded-jetty-9-d3a86f83e9d9

Thank you very much.

Thank you for your answer. We use Mycollab 5.4.10 and as i know in this version, spring is used not spring boot!

Thank you for your answer. Is it possible to set HTTPS with Mycollab default server (Jetty server) or Apache Tomcat ?