Added in API level 1

RuntimeException

open class RuntimeException : Exception

kotlin.Any
↳	kotlin.Throwable
	↳	java.lang.Exception
		↳	java.lang.RuntimeException

Known Direct Subclasses

ActivityNotFoundException, AndroidRuntimeException, AnnotationTypeMismatchException, ArithmeticException, ArrayStoreException, BufferOverflowException, BufferUnderflowException, CallEndpointException, CallException, ClassCastException, CompanionException, CompletionException, and 61 others.

ActivityNotFoundException	This exception is thrown when a call to android.
AndroidRuntimeException	Base class for all unchecked exceptions thrown by the Android frameworks.
AnnotationTypeMismatchException	Thrown to indicate that a program has attempted to access an element of an annotation whose type has changed after the annotation was compiled (or serialized).
ArithmeticException	Thrown when an exceptional arithmetic condition has occurred.
ArrayStoreException	Thrown to indicate that an attempt has been made to store the wrong type of object into an array of objects.
BufferOverflowException	Unchecked exception thrown when a relative put operation reaches the target buffer's limit.
BufferUnderflowException	Unchecked exception thrown when a relative get operation reaches the source buffer's limit.
CallEndpointException	This class represents a set of exceptions that can occur when requesting a `CallEndpoint` change.
CallException	This class defines exceptions that can be thrown when using Telecom APIs with `android.os.OutcomeReceiver`s.
ClassCastException	Thrown to indicate that the code has attempted to cast an object to a subclass of which it is not an instance.
CompanionException	`CompanionException` can be thrown during the companion system data transfer process.
CompletionException	Exception thrown when an error or other exception is encountered in the course of completing a result or task.
ConcurrentModificationException	This exception may be thrown by methods that have detected concurrent modification of an object when such modification is not permissible.
CursorWindowAllocationException	This exception is thrown when a CursorWindow couldn't be allocated, most probably due to memory not being available.
DOMException	DOM operations only raise exceptions in "exceptional" circumstances, i.
DateTimeException	Exception used to indicate a problem while calculating a date-time.
DeviceNotAssociatedException	An exception for a case when a given device was not android.
EmptyStackException	Thrown by methods in the `Stack` class to indicate that the stack is empty.
EnumConstantNotPresentException	Thrown when an application tries to access an enum constant by name and the enum type contains no constant with the specified name.
FileSystemAlreadyExistsException	Runtime exception thrown when an attempt is made to create a file system that already exists.
FileSystemNotFoundException	Runtime exception thrown when a file system cannot be found.
FileUriExposedException	The exception that is thrown when an application exposes a `file://` `android.net.Uri` to another app.
GLException	An exception class for OpenGL errors.
HealthConnectException	Class representing health connect exceptions.
ICUUncheckedIOException	Unchecked version of `java.io.IOException`.
IllegalArgumentException	Thrown to indicate that a method has been passed an illegal or inappropriate argument.
IllegalMonitorStateException	Thrown to indicate that a thread has attempted to wait on an object's monitor or to notify other threads waiting on an object's monitor without owning the specified monitor.
IllegalStateException	Signals that a method has been invoked at an illegal or inappropriate time.
IllformedLocaleException	Thrown by methods in `ULocale` and `ULocale.Builder` to indicate that an argument is not a well-formed BCP 47 tag.
IllformedLocaleException	Thrown by methods in `Locale` and `Locale.Builder` to indicate that an argument is not a well-formed BCP 47 tag.
IncompleteAnnotationException	Thrown to indicate that a program has attempted to access an element of an annotation interface that was added to the annotation interface definition after the annotation was compiled (or serialized).
IndexOutOfBoundsException	Thrown to indicate that an index of some sort (such as to an array, to a string, or to a vector) is out of range.
InflateException	This exception is thrown by an inflater on error conditions.
InspectionCompanion.UninitializedPropertyMapException	Thrown by `readProperties(java.lang.Object,android.view.inspector.PropertyReader)` if called before `mapProperties(android.view.inspector.PropertyMapper)`.
LSException	Parser or write operations may throw an `LSException` if the processing is stopped.
MalformedParameterizedTypeException	Thrown when a semantically malformed parameterized type is encountered by a reflective method that needs to instantiate it.
MalformedParametersException	Thrown when `the` attempts to read method parameters from a class file and determines that one or more parameters are malformed.
MediaCodec.CryptoException	Thrown when a crypto error occurs while queueing a secure input buffer.
MediaCodec.IncompatibleWithBlockModelException	Thrown when the codec is configured for block model and an incompatible API is called.
MediaCodec.InvalidBufferFlagsException	Thrown when a buffer is marked with an invalid combination of flags (e.g. both
MediaDrm.SessionException	`SessionException` is a misnomer because it may occur in methods without a session context.
MissingResourceException	Signals that a resource is missing.
NegativeArraySizeException	Thrown if an application tries to create an array with negative size.
NetworkOnMainThreadException	The exception that is thrown when an application attempts to perform a networking operation on its main thread.
NoSuchElementException	Thrown by various accessor methods to indicate that the element being requested does not exist.
NoSuchPropertyException	Thrown when code requests a `Property` on a class that does not expose the appropriate method or field.
NullPointerException	Thrown when an application attempts to use `null` in a case where an object is required.
OperationCanceledException	An exception type that is thrown when an operation in progress is canceled.
ParcelFormatException	The contents of a Parcel (usually during unmarshalling) does not contain the expected data.
ParseException	Thrown when parsing failed.
PropertyMapper.PropertyConflictException	Thrown from a map method if a property name is already mapped as different type.
PropertyReader.PropertyTypeMismatchException	Thrown if a client calls a typed read method for a property of a different type.
ProviderException	A runtime exception for Provider exceptions (such as misconfiguration errors or unrecoverable internal errors), which may be subclassed by Providers to throw specialized, provider-specific runtime errors.
ProviderNotFoundException	Runtime exception thrown when a provider of the required type cannot be found.
QueryLocationException	This class represents a set of exceptions that can occur when requesting a `Connection#queryLocationForEmergency(long, String, Executor, OutcomeReceiver)`
RSRuntimeException	Base class for all exceptions thrown by the Android RenderScript
RejectedExecutionException	Exception thrown by an `Executor` when a task cannot be accepted for execution.
RemoteViews.ActionException	Exception to send when something goes wrong executing an action
Resources.NotFoundException	This exception is thrown by the resource APIs when a requested resource can not be found.
SQLException	An exception that indicates there was an error with SQL parsing or execution.
SecurityException	Thrown by the security manager to indicate a security violation.
StaleDataException	This exception is thrown when a Cursor contains stale data and must be requeried before being used again.
Surface.OutOfResourcesException	Exception thrown when a Canvas couldn't be locked with `Surface#lockCanvas`, or when a SurfaceTexture could not successfully be allocated.
SurfaceHolder.BadSurfaceTypeException	Exception that is thrown from #lockCanvas when called on a Surface whose type is SURFACE_TYPE_PUSH_BUFFERS.
TimeFormatException
TypeNotPresentException	Thrown when an application tries to access a type using a string representing the type's name, but no definition for the type with the specified name can be found.
UncheckedIOException	Wraps an `IOException` with an unchecked exception.
UndeclaredThrowableException	Thrown by a method invocation on a proxy instance if its invocation handler's `invoke` method throws a checked exception (a `Throwable` that is not assignable to `RuntimeException` or `Error`) that is not assignable to any of the exception types declared in the `throws` clause of the method that was invoked on the proxy instance and dispatched to the invocation handler.
UnsupportedOperationException	Thrown to indicate that the requested operation is not supported.
UserManager.UserOperationException	Thrown to indicate user operation failed.
WindowManager.BadTokenException	Exception that is thrown when trying to add view whose `LayoutParams` `LayoutParams#token` is invalid.
WindowManager.InvalidDisplayException	Exception that is thrown when calling `addView` to a secondary display that cannot be found.
WrongMethodTypeException	Thrown to indicate that code has attempted to call a method handle via the wrong method type.

Known Indirect Subclasses

AcceptPendingException, AccessControlException, AlreadyBoundException, AlreadyConnectedException, ArrayIndexOutOfBoundsException, AuthenticationRequiredException, BackendBusyException, BackgroundServiceStartNotAllowedException, BadParcelableException, CancellationException, CancelledKeyException, ClosedDirectoryStreamException, and 89 others.

AcceptPendingException	Unchecked exception thrown when an attempt is made to initiate an accept operation on a channel and a previous accept operation has not completed.
AccessControlException	This exception is thrown by the AccessController to indicate that a requested access (to a critical system resource such as the file system or the network) is denied.
AlreadyBoundException	Unchecked exception thrown when an attempt is made to bind the socket a network oriented channel that is already bound.
AlreadyConnectedException	Unchecked exception thrown when an attempt is made to connect a `SocketChannel` that is already connected.
ArrayIndexOutOfBoundsException	Thrown to indicate that an array has been accessed with an illegal index.
AuthenticationRequiredException	Specialization of `SecurityException` that is thrown when authentication is needed from the end user before viewing the content.
BackendBusyException	Indicates a transient error that prevented a key operation from being created.
BackgroundServiceStartNotAllowedException	Exception thrown when an app tries to start a background `Service` when it's not allowed to do so.
BadParcelableException	Exception thrown when a `Parcelable` is malformed or otherwise invalid.
CancellationException	Exception indicating that the result of a value-producing task, such as a `FutureTask`, cannot be retrieved because the task was cancelled.
CancelledKeyException	Unchecked exception thrown when an attempt is made to use a selection key that is no longer valid.
ClosedDirectoryStreamException	Unchecked exception thrown when an attempt is made to invoke an operation on a directory stream that is closed.
ClosedFileSystemException	Unchecked exception thrown when an attempt is made to invoke an operation on a file and the file system is closed.
ClosedSelectorException	Unchecked exception thrown when an attempt is made to invoke an I/O operation upon a closed selector.
ClosedWatchServiceException	Unchecked exception thrown when an attempt is made to invoke an operation on a watch service that is closed.
ConnectionPendingException	Unchecked exception thrown when an attempt is made to connect a `SocketChannel` for which a non-blocking connection operation is already in progress.
CursorIndexOutOfBoundsException	An exception indicating that a cursor is out of bounds.
DateTimeParseException	An exception thrown when an error occurs during parsing.
DirectoryIteratorException	Runtime exception thrown if an I/O error is encountered when iterating over the entries in a directory.
DuplicateFormatFlagsException	Unchecked exception thrown when duplicate flags are provided in the format specifier.
ForegroundServiceStartNotAllowedException	Exception thrown when an app tries to start a foreground `Service` when it's not allowed to do so.
ForegroundServiceTypeException	Base exception thrown when an app tries to start a foreground `Service` without a valid type.
FormatFlagsConversionMismatchException	Unchecked exception thrown when a conversion and flag are incompatible.
FormatterClosedException	Unchecked exception thrown when the formatter has been closed.
Fragment.InstantiationException	Thrown by `Fragment#instantiate(Context, String, Bundle)` when there is an instantiation failure.
IllegalBlockingModeException	Unchecked exception thrown when a blocking-mode-specific operation is invoked upon a channel in the incorrect blocking mode.
IllegalChannelGroupException	Unchecked exception thrown when an attempt is made to open a channel in a group that was not created by the same provider.
IllegalCharsetNameException	Unchecked exception thrown when a string that is not a legal charset name is used as such.
IllegalFormatCodePointException	Unchecked exception thrown when a character with an invalid Unicode code point as defined by `Character#isValidCodePoint` is passed to the `Formatter`.
IllegalFormatConversionException	Unchecked exception thrown when the argument corresponding to the format specifier is of an incompatible type.
IllegalFormatException	Unchecked exception thrown when a format string contains an illegal syntax or a format specifier that is incompatible with the given arguments.
IllegalFormatFlagsException	Unchecked exception thrown when an illegal combination flags is given.
IllegalFormatPrecisionException	Unchecked exception thrown when the precision is a negative value other than `-1`, the conversion does not support a precision, or the value is otherwise unsupported.
IllegalFormatWidthException	Unchecked exception thrown when the format width is a negative value other than `-1` or is otherwise unsupported.
IllegalSelectorException	Unchecked exception thrown when an attempt is made to register a channel with a selector that was not created by the provider that created the channel.
IllegalThreadStateException	Thrown to indicate that a thread is not in an appropriate state for the requested operation.
InlineExecutionProhibitedException	Thrown when an executor runs a submitted runnable inline in `java.util.concurrent.Executor#execute(Runnable)` and `android.net.http.UrlRequest.Builder#setDirectExecutorAllowed` was not called.
InputMismatchException	Thrown by a `Scanner` to indicate that the token retrieved does not match the pattern for the expected type, or that the token is out of range for the expected type.
InvalidForegroundServiceTypeException	Exception thrown when an app tries to start a foreground `Service` with an invalid type.
InvalidMarkException	Unchecked exception thrown when an attempt is made to reset a buffer when its mark is not defined.
InvalidParameterException	This exception, designed for use by the JCA/JCE engine classes, is thrown when an invalid parameter is passed to a method.
InvalidPathException	Unchecked exception thrown when path string cannot be converted into a `Path` because the path string contains invalid characters, or the path string is invalid for other file system specific reasons.
KeyCharacterMap.UnavailableException	Thrown by `KeyCharacterMap#load` when a key character map could not be loaded.
LimitExceededException	Indicates that the app has exceeded a limit set by the System.
MediaCasStateException	Base class for MediaCas runtime exceptions
MediaCodec.CodecException	Thrown when an internal codec error occurs.
MediaDrm.MediaDrmStateException	Thrown when a general failure occurs during a MediaDrm operation.
MediaDrmResetException	This exception is thrown when the MediaDrm instance has become unusable due to a restart of the mediaserver process.
MissingForegroundServiceTypeException	Exception thrown when an app tries to start a foreground `Service` without a type.
MissingFormatArgumentException	Unchecked exception thrown when there is a format specifier which does not have a corresponding argument or if an argument index refers to an argument that does not exist.
MissingFormatWidthException	Unchecked exception thrown when the format width is required.
NoConnectionPendingException	Unchecked exception thrown when the `finishConnect` method of a `SocketChannel` is invoked without first successfully invoking its `connect` method.
NonReadableChannelException	Unchecked exception thrown when an attempt is made to read from a channel that was not originally opened for reading.
NonWritableChannelException	Unchecked exception thrown when an attempt is made to write to a channel that was not originally opened for writing.
NotYetBoundException	Unchecked exception thrown when an attempt is made to invoke an I/O operation upon a server socket channel that is not yet bound.
NotYetConnectedException	Unchecked exception thrown when an attempt is made to invoke an I/O operation upon a socket channel that is not yet connected.
NumberFormatException	Thrown to indicate that the application has attempted to convert a string to one of the numeric types, but that the string does not have the appropriate format.
OverlappingFileLockException	Unchecked exception thrown when an attempt is made to acquire a lock on a region of a file that overlaps a region already locked by the same Java virtual machine, or when another thread is already waiting to lock an overlapping region of the same file.
PatternSyntaxException	Unchecked exception thrown to indicate a syntax error in a regular-expression pattern.
ProviderMismatchException	Unchecked exception thrown when an attempt is made to invoke a method on an object created by one file system provider with a parameter created by a different file system provider.
RSDriverException	Base class for all exceptions thrown by the Android RenderScript
RSIllegalArgumentException	Base class for all exceptions thrown by the Android RenderScript
RSInvalidStateException	Base class for all exceptions thrown by the Android RenderScript
ReadOnlyBufferException	Unchecked exception thrown when a content-mutation method such as put or compact is invoked upon a read-only buffer.
ReadOnlyFileSystemException	Unchecked exception thrown when an attempt is made to update an object associated with a `read-only` `FileSystem`.
ReadPendingException	Unchecked exception thrown when an attempt is made to read from an asynchronous socket channel and a previous read has not completed.
ReceiverCallNotAllowedException	This exception is thrown from android.
RecoverableSecurityException	Specialization of `SecurityException` that contains additional information about how to involve the end user to recover from the exception.
SQLiteAbortException	An exception that indicates that the SQLite program was aborted.
SQLiteAccessPermException	This exception class is used when sqlite can't access the database file due to lack of permissions on the file.
SQLiteBindOrColumnIndexOutOfRangeException	Thrown if the bind or column parameter index is out of range.
SQLiteBlobTooBigException
SQLiteCantOpenDatabaseException
SQLiteConstraintException	An exception that indicates that an integrity constraint was violated.
SQLiteDatabaseCorruptException	An exception that indicates that the SQLite database file is corrupt.
SQLiteDatabaseLockedException	Thrown if the database engine was unable to acquire the database locks it needs to do its job.
SQLiteDatatypeMismatchException
SQLiteDiskIOException	Indicates that an IO error occurred while accessing the SQLite database file.
SQLiteDoneException	An exception that indicates that the SQLite program is done.
SQLiteException	A SQLite exception that indicates there was an error with SQL parsing or execution.
SQLiteFullException	An exception that indicates that the SQLite database is full.
SQLiteMisuseException	This error can occur if the application creates a SQLiteStatement object and allows multiple threads in the application use it at the same time.
SQLiteOutOfMemoryException
SQLiteReadOnlyDatabaseException
SQLiteTableLockedException
SecureKeyImportUnavailableException	Indicates that the Keystore does not support securely importing wrapped keys.
ServiceStartNotAllowedException	Exception thrown when an app tries to start a `Service` when it's not allowed to do so.
ShutdownChannelGroupException	Unchecked exception thrown when an attempt is made to construct a channel in a group that is shutdown or the completion handler for an I/O operation cannot be invoked because the channel group has terminated.
StartForegroundCalledOnStoppedServiceException	Exception thrown when android.
StringIndexOutOfBoundsException	Thrown by `String` methods to indicate that an index is either negative or greater than the size of the string.
StrongBoxUnavailableException	Indicates that an operation could not be performed because the requested security hardware is not available.
SystemUpdatePolicy.ValidationFailedException	An exception class that represents various validation errors thrown from `SystemUpdatePolicy#setFreezePeriods` and `DevicePolicyManager#setSystemUpdatePolicy`
UnknownFormatConversionException	Unchecked exception thrown when an unknown conversion is given.
UnknownFormatFlagsException	Unchecked exception thrown when an unknown flag is given.
UnresolvedAddressException	Unchecked exception thrown when an attempt is made to invoke a network operation upon an unresolved socket address.
UnsafeStateException	Exception thrown when a `android.app.admin.DevicePolicyManager` operation failed because it was not safe to be executed at that moment.
UnsupportedAddressTypeException	Unchecked exception thrown when an attempt is made to bind or connect to a socket address of a type that is not supported.
UnsupportedCharsetException	Unchecked exception thrown when no support is available for a requested charset.
UnsupportedTemporalTypeException	UnsupportedTemporalTypeException indicates that a ChronoField or ChronoUnit is not supported for a Temporal class.
WritePendingException	Unchecked exception thrown when an attempt is made to write to an asynchronous socket channel and a previous write has not completed.
ZoneRulesException	Thrown to indicate a problem with time-zone configuration.

RuntimeException is the superclass of those exceptions that can be thrown during the normal operation of the Java Virtual Machine.

RuntimeException and its subclasses are unchecked exceptions. Unchecked exceptions do not need to be declared in a method or constructor's throws clause if they can be thrown by the execution of the method or constructor and propagate outside the method or constructor boundary.

Summary

Public constructors
`RuntimeException()` Constructs a new runtime exception with `null` as its detail message.
`RuntimeException(message: String!)` Constructs a new runtime exception with the specified detail message.
`RuntimeException(message: String!, cause: Throwable!)` Constructs a new runtime exception with the specified detail message and cause.
`RuntimeException(cause: Throwable!)` Constructs a new runtime exception with the specified cause and a detail message of `(cause==null ? null : cause.toString())` (which typically contains the class and detail message of `cause`).

Protected constructors
`RuntimeException(message: String!, cause: Throwable!, enableSuppression: Boolean, writableStackTrace: Boolean)` Constructs a new runtime exception with the specified detail message, cause, suppression enabled or disabled, and writable stack trace enabled or disabled.

Public constructors

RuntimeException

Added in API level 1

RuntimeException()

Constructs a new runtime exception with null as its detail message. The cause is not initialized, and may subsequently be initialized by a call to initCause.

RuntimeException

Added in API level 1

RuntimeException(message: String!)

Constructs a new runtime exception with the specified detail message. The cause is not initialized, and may subsequently be initialized by a call to initCause.

Parameters
`message`	String!: the detail message. The detail message is saved for later retrieval by the `getMessage()` method.

RuntimeException

Added in API level 1

RuntimeException(
    message: String!, 
    cause: Throwable!)

Constructs a new runtime exception with the specified detail message and cause.

Note that the detail message associated with cause is not automatically incorporated in this runtime exception's detail message.

Parameters
`message`	String!: the detail message (which is saved for later retrieval by the `getMessage()` method).
`cause`	Throwable!: the cause (which is saved for later retrieval by the `getCause()` method). (A `null` value is permitted, and indicates that the cause is nonexistent or unknown.)

RuntimeException

Added in API level 1

RuntimeException(cause: Throwable!)

Constructs a new runtime exception with the specified cause and a detail message of (cause==null ? null : cause.toString()) (which typically contains the class and detail message of cause). This constructor is useful for runtime exceptions that are little more than wrappers for other throwables.

Parameters
`cause`	Throwable!: the cause (which is saved for later retrieval by the `getCause()` method). (A `null` value is permitted, and indicates that the cause is nonexistent or unknown.)

Protected constructors

RuntimeException

Added in API level 24

protected RuntimeException(
    message: String!, 
    cause: Throwable!, 
    enableSuppression: Boolean, 
    writableStackTrace: Boolean)

Constructs a new runtime exception with the specified detail message, cause, suppression enabled or disabled, and writable stack trace enabled or disabled.

Parameters
`message`	String!: the detail message.
`cause`	Throwable!: the cause. (A `null` value is permitted, and indicates that the cause is nonexistent or unknown.)
`enableSuppression`	Boolean: whether or not suppression is enabled or disabled
`writableStackTrace`	Boolean: whether or not the stack trace should be writable