1 - compiler.warn.source.no.bootclasspath: 6 2 - compiler.warn.option.obsolete.source: 6 3 - compiler.warn.option.obsolete.suppression 4 OneCaseSwitches.java:23:15: compiler.err.feature.not.supported.in.source.plural: (compiler.misc.feature.string.switch), 6, 7 5 1 error 6 3 warnings