17:28:18.852 [main] DEBUG org.openecomp.core.validation.types.GlobalValidationContext - '[YML1]: Invalid YAML format Problem - [empty yaml]' [ERROR] in file 'emptyYaml.yaml' 
17:28:18.858 [main] DEBUG org.openecomp.core.validation.types.GlobalValidationContext - '[YML2]: Invalid YAML format Problem - [while parsing a block mapping
 in 'reader', line 8, column 7:
          admin_state_up: true
          ^
expected <block end>, but found '-'
 in 'reader', line 10, column 7:
          - shared: true
          ^
]' [ERROR] in file 'invalidYamlStructure.yaml' 
17:28:18.860 [main] DEBUG org.openecomp.core.validation.types.GlobalValidationContext - '[YML2]: Invalid YAML format Problem - [while scanning for the next token
found character '\t(TAB)' that cannot start any token. (Do not use \t(TAB) for indentation)
 in 'reader', line 14, column 5:
        	admin_state_up: true
        ^
]' [ERROR] in file 'invalidYamlTab.yaml' 
17:28:18.861 [main] DEBUG org.openecomp.core.validation.types.GlobalValidationContext - '[YML2]: Invalid YAML format Problem - [while constructing a mapping
 in 'reader', line 6, column 3:
      Key_1_unique:
      ^
found duplicate key Key_2_not_unique
 in 'reader', line 18, column 3:
      Key_2_not_unique:
      ^
]' [ERROR] in file 'duplicateKey.yaml'