The behavior of `java.io.PrintStream` and `java.io.PrintWriter` has changed when writing to a custom output stream that throws `InterruptedIOException`. If the custom output stream's `write` method throws `InterruptedIOException` then the `PrintStream` or `PrintWriter` is now marked in error so that `checkError` returns `true`. Historically this exception caused the writing Thread's interrupted status to be set, without marking the stream in error.