Conventions

In this book, you will find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles, and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "We are going to modify the web.xml file."

A block of code is set as follows:

private boolean isUserAllowed(final String username, final String password, final Set<String> rolesSet) {
    boolean isAllowed = false;
    if (rolesSet.contains(ADMIN)) {
      isAllowed = true;
    }
    return isAllowed;
  }
}

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

final List<String> authorizationList = headersMap.get(AUTHORIZATION_PROPERTY);

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

mvn clean install

New terms and important words are shown in bold. Words that you see on the screen, in menus or dialog boxes for example, appear in the text like this: "From the pop-up window, select the SSL Settings tab."

Note

Warnings or important notes appear in a box like this.

Tip

Tips and tricks appear like this.