private static void debug ( Object ... o ) {
  if ( isDebug ) {
    System . err . println ( Arrays . deepToString ( o ) ) ;
  }
}

private static void debug ( Object ... o ) { if ( isDebug ) { System . err . println ( Arrays . deepToString ( o ) ) ; } }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (spread_parameter (type_identifier) (variable_declarator name: (identifier)))) body: (block (if_statement condition: (parenthesized_expression (identifier)) consequence: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))))))))))