AvoidOutdatedUsage: Use modern Java collections API (toList() instead of collect(Collectors.toList()))

• Use modern Java collections API (toList() instead of collect(Collectors.toList()))

• Modernize codebase with Java improvements apache/maven#2277
• Modernize codebase with Java improvements - Use modern Java collections API (toList() instead of Collectors.toList()) apache/maven#2287