BackendBusyException


public class BackendBusyException
extends ProviderException

java.lang.Object
   ↳ java.lang.Throwable
     ↳ java.lang.Exception
       ↳ java.lang.RuntimeException
         ↳ java.security.ProviderException
           ↳ android.security.keystore.BackendBusyException


Indicates a transient error that prevented a key operation from being created. Callers should try again with a back-off period of getBackOffHintMillis() milliseconds.

Summary

Public constructors

BackendBusyException(long backOffHintMillis)

Constructs a new BackendBusyException without detail message and cause.

BackendBusyException(long backOffHintMillis, String message)

Constructs a new BackendBusyException with the provided detail message and no cause.

BackendBusyException(long backOffHintMillis, String message, Throwable cause)

Constructs a new BackendBusyException with the provided detail message and cause.

Public methods

long getBackOffHintMillis()

When retrying to start a Keystore operation after receiving this exception, this can be used to determine how long to wait before retrying.

Inherited methods

final void addSuppressed(Throwable exception)

Appends the specified exception to the exceptions that were suppressed in order to deliver this exception.

Throwable fillInStackTrace()

Fills in the execution stack trace.

Throwable getCause()

Returns the cause of this throwable or null if the cause is nonexistent or unknown.

String getLocalizedMessage()

Creates a localized description of this throwable.

String getMessage()

Returns the detail message string of this throwable.

StackTraceElement[] getStackTrace()

Provides programmatic access to the stack trace information printed by printStackTrace().

final Throwable[] getSuppressed()

Returns an array containing all of the exceptions that were suppressed, typically by the try-with-resources statement, in order to deliver this exception.

Throwable initCause(Throwable cause)

Initializes the cause of this throwable to the specified value.

void printStackTrace()

Prints this throwable and its backtrace to the standard error stream.

void printStackTrace(PrintWriter s)

Prints this throwable and its backtrace to the specified print writer.

void printStackTrace(PrintStream s)

Prints this throwable and its backtrace to the specified print stream.

void setStackTrace(StackTraceElement[] stackTrace)

Sets the stack trace elements that will be returned by getStackTrace() and printed by printStackTrace() and related methods.

String toString()

Returns a short description of this throwable.

Object clone()

Creates and returns a copy of this object.

boolean equals(Object obj)

Indicates whether some other object is "equal to" this one.

void finalize()

Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.

final Class<?> getClass()

Returns the runtime class of this Object.

int hashCode()

Returns a hash code value for the object.

final void notify()

Wakes up a single thread that is waiting on this object's monitor.

final void notifyAll()

Wakes up all threads that are waiting on this object's monitor.

String toString()

Returns a string representation of the object.

final void wait(long timeoutMillis, int nanos)

Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

final void wait(long timeoutMillis)

Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

final void wait()

Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

Public constructors

BackendBusyException

Added in API level 31
public BackendBusyException (long backOffHintMillis)

Constructs a new BackendBusyException without detail message and cause.

Parameters
backOffHintMillis long: Value is a non-negative duration in milliseconds.

BackendBusyException

Added in API level 31
public BackendBusyException (long backOffHintMillis, 
                String message)

Constructs a new BackendBusyException with the provided detail message and no cause.

Parameters
backOffHintMillis long: Value is a non-negative duration in milliseconds.

message String: This value cannot be null.

BackendBusyException

Added in API level 31
public BackendBusyException (long backOffHintMillis, 
                String message, 
                Throwable cause)

Constructs a new BackendBusyException with the provided detail message and cause.

Parameters
backOffHintMillis long: Value is a non-negative duration in milliseconds.

message String: This value cannot be null.

cause Throwable: This value cannot be null.

Public methods

getBackOffHintMillis

Added in API level 31
public long getBackOffHintMillis ()

When retrying to start a Keystore operation after receiving this exception, this can be used to determine how long to wait before retrying. It is not guaranteed that the operation will succeeds after this time. Multiple retries may be necessary if the system is congested.
Value is a non-negative duration in milliseconds.

Returns
long Number of milliseconds to back off before retrying. Value is a non-negative duration in milliseconds.