JShellEnvironment.java 文件源码

public InputStream getInputStream() throws IOException {
    if (inputOutput == null) {
        throw new IllegalStateException("not started");
    }
    return new ReaderInputStream(
            new FilterReader(inputOutput.getIn()) {
                @Override
                public void close() throws IOException {
                    // do not close the input, JShell may be reset.
                }
            }, "UTF-8" // NOI18N
    );
}