Class StatusCodes
- java.lang.Object
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- net.lenni0451.commons.httpclient.constants.StatusCodes
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public class StatusCodes extends java.lang.Object
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Field Summary
Fields Modifier and Type Field Description static intACCEPTEDThe request has been received but not yet acted upon.
It is noncommittal, since there is no way in HTTP to later send an asynchronous response indicating the outcome of the request.
It is intended for cases where another process or server handles the request, or for batch processing.static intALREADY_REPORTEDUsed inside aWebDAVresponse element to avoid repeatedly enumerating the internal members of multiple bindings to the same collection.static intBAD_GATEWAYThis error response means that the server, while working as a gateway to get a response needed to handle the request, got an invalid response.static intBAD_REQUESTThe server cannot or will not process the request due to something that is perceived to be a client error (e.g., malformed request syntax, invalid request message framing, or deceptive request routing).static intCONFLICTThis response is sent when a request conflicts with the current state of the server.static intCONTINUEThis interim response indicates that the client should continue the request or ignore the response if the request is already finished.static intCREATEDThe request succeeded, and a new resource was created as a result.static intEARLY_HINTSThis status code is primarily intended to be used with theLinkheader, letting the user agent start preloading resources while the server prepares a response or preconnect to an origin from which the page will need resources.static intEXPECTATION_FAILEDThis response code means the expectation indicated by theExpectrequest header field cannot be met by the server.static intFAILED_DEPENDENCYThe request failed due to failure of a previous request.static intFORBIDDENThe client does not have access rights to the content; that is, it is unauthorized, so the server is refusing to give the requested resource.
Unlike401 Unauthorized, the client's identity is known to the server.static intGATEWAY_TIMEOUTThis error response is given when the server is acting as a gateway and cannot get a response in time.static intGONEThis response is sent when the requested content has been permanently deleted from server, with no forwarding address.
Clients are expected to remove their caches and links to the resource.
The HTTP specification intends this status code to be used for "limited-time, promotional services".
APIs should not feel compelled to indicate resources that have been deleted with this status code.static intHTTP_VERSION_NOT_SUPPORTEDThe HTTP version used in the request is not supported by the server.static intIM_A_TEAPOTThe server refuses the attempt to brew coffee with a teapot.static intIM_USEDThe server has fulfilled aGETrequest for the resource, and the response is a representation of the result of one or more instance-manipulations applied to the current instance.static intINSUFFICIENT_STORAGEThe method could not be performed on the resource because the server is unable to store the representation needed to successfully complete the request.static intINTERNAL_SERVER_ERRORThe server has encountered a situation it does not know how to handle.static intLENGTH_REQUIREDServer rejected the request because theContent-Lengthheader field is not defined and the server requires it.static intLOCKEDThe resource that is being accessed is locked.static intLOOP_DETECTEDThe server detected an infinite loop while processing the request.static intMETHOD_NOT_ALLOWEDThe request method is known by the server but is not supported by the target resource.
For example, an API may not allow callingDELETEto remove a resource.static intMISDIRECTED_REQUESTThe request was directed at a server that is not able to produce a response.
This can be sent by a server that is not configured to produce responses for the combination of scheme and authority that are included in the request URI.static intMOVED_PERMANENTLYThe URL of the requested resource has been changed permanently.static intMOVED_TEMPORARILYThis response code means that the URI of requested resource has been changed temporarily.
Further changes in the URI might be made in the future.static intMULTI_STATUSConveys information about multiple resources, for situations where multiple status codes might be appropriate.static intMULTIPLE_CHOICESThe request has more than one possible response.static intNETWORK_AUTHENTICATION_REQUIREDIndicates that the client needs to authenticate to gain network access.static intNO_CONTENTThere is no content to send for this request, but the headers may be useful.
The user agent may update its cached headers for this resource with the new ones.static intNON_AUTHORITATIVE_INFORMATIONThis response code means the returned metadata is not exactly the same as is available from the origin server, but is collected from a local or a third-party copy.
This is mostly used for mirrors or backups of another resource.
Except for that specific case, the200 OKresponse is preferred to this status.static intNOT_ACCEPTABLEThis response is sent when the web server, after performing server-driven content negotiation, doesn't find any content that conforms to the criteria given by the user agent.static intNOT_EXTENDEDFurther extensions to the request are required for the server to fulfill it.static intNOT_FOUNDThe server cannot find the requested resource.
In the browser, this means the URL is not recognized.
In an API, this can also mean that the endpoint is valid but the resource itself does not exist.
Servers may also send this response instead of403 Forbiddento hide the existence of a resource from an unauthorized client.
This response code is probably the most well known due to its frequent occurrence on the web.static intNOT_IMPLEMENTEDThe request method is not supported by the server and cannot be handled.static intNOT_MODIFIEDThis is used for caching purposes.
It tells the client that the response has not been modified, so the client can continue to use the same cached version of the response.static intOKThe request succeeded.static intPARTIAL_CONTENTThis response code is used when theRangeheader is sent from the client to request only part of a resource.static intPAYLOAD_TOO_LARGERequest entity is larger than limits defined by server.
The server might close the connection or return anRetry-Afterheader field.static intPAYMENT_REQUIREDThis response code is reserved for future use.
The initial aim for creating this code was using it for digital payment systems, however this status code is used very rarely and no standard convention exists.static intPERMANENT_REDIRECTThis means that the resource is now permanently located at another URI, specified by theLocation:HTTP Response header.
This has the same semantics as the301 Moved PermanentlyHTTP response code, with the exception that the user agent must not change the HTTP method used: if aPOSTwas used in the first request, aPOSTmust be used in the second request.static intPRECONDITION_FAILEDThe client has indicated preconditions in its headers which the server does not meet.static intPRECONDITION_REQUIREDThe origin server requires the request to be conditional.
This response is intended to prevent thelost updateproblem, where a clientGETs a resource's state, modifies it andPUTs it back to the server, when meanwhile a third party has modified the state on the server, leading to a conflict.static intPROCESSINGThis code indicates that the server has received and is processing the request, but no response is available yet.static intPROXY_AUTHENTICATION_REQUIREDThis is similar to401 Unauthorizedbut authentication is needed to be done by a proxy.static intRANGE_NOT_SATISFIABLEThe range specified by theRangeheader field in the request cannot be fulfilled.
It's possible that the range is outside the size of the target URI's data.static intREQUEST_HEADER_FIELDS_TOO_LARGEThe server is unwilling to process the request because its header fields are too large.
The request may be resubmitted after reducing the size of the request header fields.static intREQUEST_TIMEOUTThis response is sent on an idle connection by some servers, even without any previous request by the client.
It means that the server would like to shut down this unused connection.
This response is used much more since some browsers, like Chrome, Firefox 27+, or IE9, use HTTP pre-connection mechanisms to speed up surfing.
Also note that some servers merely shut down the connection without sending this message.static intRESET_CONTENTTells the user agent to reset the document which sent this request.static intSEE_OTHERThe server sent this response to direct the client to get the requested resource at another URI with a GET request.static intSERVICE_UNAVAILABLEThe server is not ready to handle the request.
Common causes are a server that is down for maintenance or that is overloaded.
Note that together with this response, a user-friendly page explaining the problem should be sent.
This response should be used for temporary conditions and theRetry-AfterHTTP header should, if possible, contain the estimated time before the recovery of the service.
The webmaster must also take care about the caching-related headers that are sent along with this response, as these temporary condition responses should usually not be cached.static java.util.Map<java.lang.Integer,java.lang.String>STATUS_CODESA map of all status codes and their messages.static intSWITCHING_PROTOCOLSThis code is sent in response to anUpgraderequest header from the client and indicates the protocol the server is switching to.static intTEMPORARY_REDIRECTThe server sends this response to direct the client to get the requested resource at another URI with the same method that was used in the prior request.
This has the same semantics as the302 FoundHTTP response code, with the exception that the user agent must not change the HTTP method used: if aPOSTwas used in the first request, aPOSTmust be used in the second request.static intTOO_EARLYIndicates that the server is unwilling to risk processing a request that might be replayed.static intTOO_MANY_REQUESTSThe user has sent too many requests in a given amount of time ("rate limiting").static intUNAUTHORIZEDAlthough the HTTP standard specifies "unauthorized", semantically this response means "unauthenticated".
That is, the client must authenticate itself to get the requested response.static intUNAVAILABLE_FOR_LEGAL_REASONSThe user agent requested a resource that cannot legally be provided, such as a web page censored by a government.static intUNPROCESSABLE_CONTENTThe request was well-formed but was unable to be followed due to semantic errors.static intUNSUPPORTED_MEDIA_TYPEThe media format of the requested data is not supported by the server, so the server is rejecting the request.static intUNUSEDThis response code is no longer used; it is just reserved.static intUPGRADE_REQUIREDThe server refuses to perform the request using the current protocol but might be willing to do so after the client upgrades to a different protocol.
The server sends anUpgradeheader in a 426 response to indicate the required protocol(s).static intURI_TOO_LONGThe URI requested by the client is longer than the server is willing to interpret.static intUSE_PROXYDefined in a previous version of the HTTP specification to indicate that a requested response must be accessed by a proxy.
It has been deprecated due to security concerns regarding in-band configuration of a proxy.static intVARIANT_ALSO_NEGOTIATESThe server has an internal configuration error: the chosen variant resource is configured to engage in transparent content negotiation itself, and is therefore not a proper end point in the negotiation process.
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Constructor Summary
Constructors Constructor Description StatusCodes()
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Field Detail
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CONTINUE
public static final int CONTINUE
This interim response indicates that the client should continue the request or ignore the response if the request is already finished.- See Also:
- Constant Field Values
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SWITCHING_PROTOCOLS
public static final int SWITCHING_PROTOCOLS
This code is sent in response to anUpgraderequest header from the client and indicates the protocol the server is switching to.- See Also:
- Constant Field Values
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PROCESSING
public static final int PROCESSING
This code indicates that the server has received and is processing the request, but no response is available yet.- See Also:
- Constant Field Values
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EARLY_HINTS
public static final int EARLY_HINTS
This status code is primarily intended to be used with theLinkheader, letting the user agent start preloading resources while the server prepares a response or preconnect to an origin from which the page will need resources.- See Also:
- Constant Field Values
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OK
public static final int OK
The request succeeded. The result meaning of "success" depends on the HTTP method:Method Result GET The resource has been fetched and transmitted in the message body. HEAD The representation headers are included in the response without any message body. PUT/POST The resource describing the result of the action is transmitted in the message body. TRACE The message body contains the request message as received by the server. - See Also:
- Constant Field Values
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CREATED
public static final int CREATED
The request succeeded, and a new resource was created as a result. This is typically the response sent afterPOSTrequests, or somePUTrequests.- See Also:
- Constant Field Values
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ACCEPTED
public static final int ACCEPTED
The request has been received but not yet acted upon.
It is noncommittal, since there is no way in HTTP to later send an asynchronous response indicating the outcome of the request.
It is intended for cases where another process or server handles the request, or for batch processing.- See Also:
- Constant Field Values
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NON_AUTHORITATIVE_INFORMATION
public static final int NON_AUTHORITATIVE_INFORMATION
This response code means the returned metadata is not exactly the same as is available from the origin server, but is collected from a local or a third-party copy.
This is mostly used for mirrors or backups of another resource.
Except for that specific case, the200 OKresponse is preferred to this status.- See Also:
- Constant Field Values
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NO_CONTENT
public static final int NO_CONTENT
There is no content to send for this request, but the headers may be useful.
The user agent may update its cached headers for this resource with the new ones.- See Also:
- Constant Field Values
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RESET_CONTENT
public static final int RESET_CONTENT
Tells the user agent to reset the document which sent this request.- See Also:
- Constant Field Values
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PARTIAL_CONTENT
public static final int PARTIAL_CONTENT
This response code is used when theRangeheader is sent from the client to request only part of a resource.- See Also:
- Constant Field Values
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MULTI_STATUS
public static final int MULTI_STATUS
Conveys information about multiple resources, for situations where multiple status codes might be appropriate.- See Also:
- Constant Field Values
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ALREADY_REPORTED
public static final int ALREADY_REPORTED
Used inside aWebDAVresponse element to avoid repeatedly enumerating the internal members of multiple bindings to the same collection.- See Also:
- Constant Field Values
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IM_USED
public static final int IM_USED
The server has fulfilled aGETrequest for the resource, and the response is a representation of the result of one or more instance-manipulations applied to the current instance.- See Also:
- Constant Field Values
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MULTIPLE_CHOICES
public static final int MULTIPLE_CHOICES
The request has more than one possible response. The user agent or user should choose one of them. (There is no standardized way of choosing one of the responses, but HTML links to the possibilities are recommended so the user can pick.)- See Also:
- Constant Field Values
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MOVED_PERMANENTLY
public static final int MOVED_PERMANENTLY
The URL of the requested resource has been changed permanently. The new URL is given in the response.- See Also:
- Constant Field Values
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MOVED_TEMPORARILY
public static final int MOVED_TEMPORARILY
This response code means that the URI of requested resource has been changed temporarily.
Further changes in the URI might be made in the future. Therefore, this same URI should be used by the client in future requests.- See Also:
- Constant Field Values
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SEE_OTHER
public static final int SEE_OTHER
The server sent this response to direct the client to get the requested resource at another URI with a GET request.- See Also:
- Constant Field Values
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NOT_MODIFIED
public static final int NOT_MODIFIED
This is used for caching purposes.
It tells the client that the response has not been modified, so the client can continue to use the same cached version of the response.- See Also:
- Constant Field Values
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USE_PROXY
public static final int USE_PROXY
Defined in a previous version of the HTTP specification to indicate that a requested response must be accessed by a proxy.
It has been deprecated due to security concerns regarding in-band configuration of a proxy.- See Also:
- Constant Field Values
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UNUSED
public static final int UNUSED
This response code is no longer used; it is just reserved. It was used in a previous version of the HTTP/1.1 specification.- See Also:
- Constant Field Values
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TEMPORARY_REDIRECT
public static final int TEMPORARY_REDIRECT
The server sends this response to direct the client to get the requested resource at another URI with the same method that was used in the prior request.
This has the same semantics as the302 FoundHTTP response code, with the exception that the user agent must not change the HTTP method used: if aPOSTwas used in the first request, aPOSTmust be used in the second request.- See Also:
- Constant Field Values
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PERMANENT_REDIRECT
public static final int PERMANENT_REDIRECT
This means that the resource is now permanently located at another URI, specified by theLocation:HTTP Response header.
This has the same semantics as the301 Moved PermanentlyHTTP response code, with the exception that the user agent must not change the HTTP method used: if aPOSTwas used in the first request, aPOSTmust be used in the second request.- See Also:
- Constant Field Values
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BAD_REQUEST
public static final int BAD_REQUEST
The server cannot or will not process the request due to something that is perceived to be a client error (e.g., malformed request syntax, invalid request message framing, or deceptive request routing).- See Also:
- Constant Field Values
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UNAUTHORIZED
public static final int UNAUTHORIZED
Although the HTTP standard specifies "unauthorized", semantically this response means "unauthenticated".
That is, the client must authenticate itself to get the requested response.- See Also:
- Constant Field Values
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PAYMENT_REQUIRED
public static final int PAYMENT_REQUIRED
This response code is reserved for future use.
The initial aim for creating this code was using it for digital payment systems, however this status code is used very rarely and no standard convention exists.- See Also:
- Constant Field Values
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FORBIDDEN
public static final int FORBIDDEN
The client does not have access rights to the content; that is, it is unauthorized, so the server is refusing to give the requested resource.
Unlike401 Unauthorized, the client's identity is known to the server.- See Also:
- Constant Field Values
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NOT_FOUND
public static final int NOT_FOUND
The server cannot find the requested resource.
In the browser, this means the URL is not recognized.
In an API, this can also mean that the endpoint is valid but the resource itself does not exist.
Servers may also send this response instead of403 Forbiddento hide the existence of a resource from an unauthorized client.
This response code is probably the most well known due to its frequent occurrence on the web.- See Also:
- Constant Field Values
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METHOD_NOT_ALLOWED
public static final int METHOD_NOT_ALLOWED
The request method is known by the server but is not supported by the target resource.
For example, an API may not allow callingDELETEto remove a resource.- See Also:
- Constant Field Values
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NOT_ACCEPTABLE
public static final int NOT_ACCEPTABLE
This response is sent when the web server, after performing server-driven content negotiation, doesn't find any content that conforms to the criteria given by the user agent.- See Also:
- Constant Field Values
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PROXY_AUTHENTICATION_REQUIRED
public static final int PROXY_AUTHENTICATION_REQUIRED
This is similar to401 Unauthorizedbut authentication is needed to be done by a proxy.- See Also:
- Constant Field Values
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REQUEST_TIMEOUT
public static final int REQUEST_TIMEOUT
This response is sent on an idle connection by some servers, even without any previous request by the client.
It means that the server would like to shut down this unused connection.
This response is used much more since some browsers, like Chrome, Firefox 27+, or IE9, use HTTP pre-connection mechanisms to speed up surfing.
Also note that some servers merely shut down the connection without sending this message.- See Also:
- Constant Field Values
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CONFLICT
public static final int CONFLICT
This response is sent when a request conflicts with the current state of the server.- See Also:
- Constant Field Values
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GONE
public static final int GONE
This response is sent when the requested content has been permanently deleted from server, with no forwarding address.
Clients are expected to remove their caches and links to the resource.
The HTTP specification intends this status code to be used for "limited-time, promotional services".
APIs should not feel compelled to indicate resources that have been deleted with this status code.- See Also:
- Constant Field Values
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LENGTH_REQUIRED
public static final int LENGTH_REQUIRED
Server rejected the request because theContent-Lengthheader field is not defined and the server requires it.- See Also:
- Constant Field Values
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PRECONDITION_FAILED
public static final int PRECONDITION_FAILED
The client has indicated preconditions in its headers which the server does not meet.- See Also:
- Constant Field Values
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PAYLOAD_TOO_LARGE
public static final int PAYLOAD_TOO_LARGE
Request entity is larger than limits defined by server.
The server might close the connection or return anRetry-Afterheader field.- See Also:
- Constant Field Values
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URI_TOO_LONG
public static final int URI_TOO_LONG
The URI requested by the client is longer than the server is willing to interpret.- See Also:
- Constant Field Values
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UNSUPPORTED_MEDIA_TYPE
public static final int UNSUPPORTED_MEDIA_TYPE
The media format of the requested data is not supported by the server, so the server is rejecting the request.- See Also:
- Constant Field Values
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RANGE_NOT_SATISFIABLE
public static final int RANGE_NOT_SATISFIABLE
The range specified by theRangeheader field in the request cannot be fulfilled.
It's possible that the range is outside the size of the target URI's data.- See Also:
- Constant Field Values
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EXPECTATION_FAILED
public static final int EXPECTATION_FAILED
This response code means the expectation indicated by theExpectrequest header field cannot be met by the server.- See Also:
- Constant Field Values
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IM_A_TEAPOT
public static final int IM_A_TEAPOT
The server refuses the attempt to brew coffee with a teapot.- See Also:
- Constant Field Values
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MISDIRECTED_REQUEST
public static final int MISDIRECTED_REQUEST
The request was directed at a server that is not able to produce a response.
This can be sent by a server that is not configured to produce responses for the combination of scheme and authority that are included in the request URI.- See Also:
- Constant Field Values
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UNPROCESSABLE_CONTENT
public static final int UNPROCESSABLE_CONTENT
The request was well-formed but was unable to be followed due to semantic errors.- See Also:
- Constant Field Values
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LOCKED
public static final int LOCKED
The resource that is being accessed is locked.- See Also:
- Constant Field Values
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FAILED_DEPENDENCY
public static final int FAILED_DEPENDENCY
The request failed due to failure of a previous request.- See Also:
- Constant Field Values
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TOO_EARLY
public static final int TOO_EARLY
Indicates that the server is unwilling to risk processing a request that might be replayed.- See Also:
- Constant Field Values
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UPGRADE_REQUIRED
public static final int UPGRADE_REQUIRED
The server refuses to perform the request using the current protocol but might be willing to do so after the client upgrades to a different protocol.
The server sends anUpgradeheader in a 426 response to indicate the required protocol(s).- See Also:
- Constant Field Values
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PRECONDITION_REQUIRED
public static final int PRECONDITION_REQUIRED
The origin server requires the request to be conditional.
This response is intended to prevent thelost updateproblem, where a clientGETs a resource's state, modifies it andPUTs it back to the server, when meanwhile a third party has modified the state on the server, leading to a conflict.- See Also:
- Constant Field Values
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TOO_MANY_REQUESTS
public static final int TOO_MANY_REQUESTS
The user has sent too many requests in a given amount of time ("rate limiting").- See Also:
- Constant Field Values
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REQUEST_HEADER_FIELDS_TOO_LARGE
public static final int REQUEST_HEADER_FIELDS_TOO_LARGE
The server is unwilling to process the request because its header fields are too large.
The request may be resubmitted after reducing the size of the request header fields.- See Also:
- Constant Field Values
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UNAVAILABLE_FOR_LEGAL_REASONS
public static final int UNAVAILABLE_FOR_LEGAL_REASONS
The user agent requested a resource that cannot legally be provided, such as a web page censored by a government.- See Also:
- Constant Field Values
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INTERNAL_SERVER_ERROR
public static final int INTERNAL_SERVER_ERROR
The server has encountered a situation it does not know how to handle.- See Also:
- Constant Field Values
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NOT_IMPLEMENTED
public static final int NOT_IMPLEMENTED
The request method is not supported by the server and cannot be handled. The only methods that servers are required to support (and therefore that must not return this code) areGETandHEAD.- See Also:
- Constant Field Values
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BAD_GATEWAY
public static final int BAD_GATEWAY
This error response means that the server, while working as a gateway to get a response needed to handle the request, got an invalid response.- See Also:
- Constant Field Values
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SERVICE_UNAVAILABLE
public static final int SERVICE_UNAVAILABLE
The server is not ready to handle the request.
Common causes are a server that is down for maintenance or that is overloaded.
Note that together with this response, a user-friendly page explaining the problem should be sent.
This response should be used for temporary conditions and theRetry-AfterHTTP header should, if possible, contain the estimated time before the recovery of the service.
The webmaster must also take care about the caching-related headers that are sent along with this response, as these temporary condition responses should usually not be cached.- See Also:
- Constant Field Values
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GATEWAY_TIMEOUT
public static final int GATEWAY_TIMEOUT
This error response is given when the server is acting as a gateway and cannot get a response in time.- See Also:
- Constant Field Values
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HTTP_VERSION_NOT_SUPPORTED
public static final int HTTP_VERSION_NOT_SUPPORTED
The HTTP version used in the request is not supported by the server.- See Also:
- Constant Field Values
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VARIANT_ALSO_NEGOTIATES
public static final int VARIANT_ALSO_NEGOTIATES
The server has an internal configuration error: the chosen variant resource is configured to engage in transparent content negotiation itself, and is therefore not a proper end point in the negotiation process.- See Also:
- Constant Field Values
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INSUFFICIENT_STORAGE
public static final int INSUFFICIENT_STORAGE
The method could not be performed on the resource because the server is unable to store the representation needed to successfully complete the request.- See Also:
- Constant Field Values
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LOOP_DETECTED
public static final int LOOP_DETECTED
The server detected an infinite loop while processing the request.- See Also:
- Constant Field Values
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NOT_EXTENDED
public static final int NOT_EXTENDED
Further extensions to the request are required for the server to fulfill it.- See Also:
- Constant Field Values
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NETWORK_AUTHENTICATION_REQUIRED
public static final int NETWORK_AUTHENTICATION_REQUIRED
Indicates that the client needs to authenticate to gain network access.- See Also:
- Constant Field Values
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STATUS_CODES
public static final java.util.Map<java.lang.Integer,java.lang.String> STATUS_CODES
A map of all status codes and their messages.
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