Conventions used

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "Some common annotations are @Service, @Component, @Bean, and @Configuration."

A block of code is set as follows:

http
  .formLogin()
    .loginPage("/login")
     .failureUrl("/login?error")
      .and()
    .authorizeRequests()
      .antMatchers("/signup","/about").permitAll()
      .antMatchers("/admin/**").hasRole("ADMIN")
      .anyRequest().authenticated();

Any command-line input or output is written as follows:

sudo apt-get install openjdk-8-jdk -y
java -version

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "In the Project Metadata section, we can put the coordinates for Maven projects."