Function DetermineTomcatVersion

src/java/containers/tomcat.go:477–481

based on the JBP_CONFIG_TOMCAT field from manifest. It looks for a tomcat block with a version of the form " .+" (e.g. "9.+", "10.+", "10.1.+"). Returns the pattern with "+" replaced by "*" (e.g. "9.*", "10.*", "10.1.*") so libbuildpack can resolve it. Masterminds/semver treats x, X, and * as

(version string)

// Returns the pattern with "+" replaced by "*" (e.g. "9.*", "10.*", "10.1.*") so libbuildpack can resolve it.
// Masterminds/semver treats x, X, and * as equivalent wildcards.
func DetermineTomcatVersion(version string) string {
	// Replace "+" with "*" so libbuildpack's FindMatchingVersion can resolve it.
	// e.g. "9.+" -> "9.*", "10.+" -> "10.*", "10.1.+" -> "10.1.*"
	return strings.ReplaceAll(version, "+", "*")
}

// isAccessLoggingEnabled checks if access logging is enabled in configuration
// Returns: "true" or "false" as a string (for use in JAVA_OPTS)