What is the sendError() method?

What is the sendError() method?

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The sendError() method of the HttpResponse interface sends an error response to the client using the specified status code and message. It has two forms: one that takes the status code as an integer, and the other that takes the status code as an integer and a String message. The syntaxes of the sendError() method is as follows:

• public abstract void sendError(int code) throws IOException: It sends the error response with the status code and default message.
• public abstract void sendError(int code, String message) throws IOException: It sends the error response with the status code and user message.

If the response has already been committed, this method throws a runtime IllegalStateException. This method also commits the response. Hence, response should not be written after using this method.

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