1 ExpressionSwitch.java:40:16: compiler.err.preview.feature.disabled.plural: (compiler.misc.feature.switch.expressions)
   2 ExpressionSwitch.java:41:20: compiler.err.preview.feature.disabled.plural: (compiler.misc.feature.switch.rules)
   3 ExpressionSwitch.java:93:31: compiler.err.preview.feature.disabled.plural: (compiler.misc.feature.multiple.case.labels)
   4 3 errors