1 org.apache.commons.lang.UnhandledException@ while parsing a block mapping 2 at org.yaml.snakeyaml.parser.ParserImpl$ParseBlockMappingKey.produce(ParserImpl.java@575) 3 at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java@162) 4 at org.yaml.snakeyaml.parser.ParserImpl.checkEvent(ParserImpl.java@147) 5 at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java@227) 6 at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java@159) 7