Fix infinite recursion in "initSettings()" method

[qatools-ci]

SonarQube analysis reported 21 issues:

• 2 critical
• 19 major

Watch the comments in this conversation to review them. Note: the following issues could not be reported as comments because they are located on lines that are not displayed in this pull request:

• Define and throw a dedicated exception instead of using a generic one.
• Call the method Thread.start() to execute the content of the run() method in a dedicated thread.
• Extract the assignment out of this expression.
• The Cyclomatic Complexity of this method "updateMappings" is 19 which is greater than 10 authorized.
• Remove this unused "part" local variable.
• Refactor this code to not nest more than 3 if/for/while/switch/try statements.
• Extract this nested try block into a separate method.
• Refactor this code to not nest more than 3 if/for/while/switch/try statements.
• Remove those useless parentheses.
• Refactor this code to not nest more than 3 if/for/while/switch/try statements.
• Call the method Thread.start() to execute the content of the run() method in a dedicated thread.
• Remove those useless parentheses.
• Remove those useless parentheses.
• Define and throw a dedicated exception instead of using a generic one.
• The Cyclomatic Complexity of this method "createIndex" is 11 which is greater than 10 authorized.
• Extract this nested try block into a separate method.
• Refactor this code to not nest more than 3 if/for/while/switch/try statements.
• Move the "_id" string literal on the left side of this string comparison.
• Extract this nested try block into a separate method.
• Extract this nested try block into a separate method.
• Refactor this code to not nest more than 3 if/for/while/switch/try statements.