FlowCrashTest.java:18:42: compiler.err.cant.apply.symbols: kindname.method, toMap, @475,@542,@624,{(compiler.misc.inapplicable.method: kindname.method, java.util.stream.Collectors, <T,K,U>toMap(java.util.function.Function<? super T,? extends K>,java.util.function.Function<? super T,? extends U>), (compiler.misc.infer.arg.length.mismatch: T,K,U)),(compiler.misc.inapplicable.method: kindname.method, java.util.stream.Collectors, <T,K,U>toMap(java.util.function.Function<? super T,? extends K>,java.util.function.Function<? super T,? extends U>,java.util.function.BinaryOperator<U>), (compiler.misc.infer.no.conforming.assignment.exists: T,K,U, (compiler.misc.incompatible.arg.types.in.lambda))),(compiler.misc.inapplicable.method: kindname.method, java.util.stream.Collectors, <T,K,U,M>toMap(java.util.function.Function<? super T,? extends K>,java.util.function.Function<? super T,? extends U>,java.util.function.BinaryOperator<U>,java.util.function.Supplier<M>), (compiler.misc.infer.arg.length.mismatch: T,K,U,M))}

1 error