JSONException

public class JSONException
extends Exception

Thrown to indicate a problem with the JSON API. Such problems include:

Attempts to parse or construct malformed documents
Use of null as a name
Use of numeric types not available to JSON, such as NaNs or infinities.
Lookups using an out of range index or nonexistent name
Type mismatches on lookups

Although this is a checked exception, it is rarely recoverable. Most callers should simply wrap this exception in an unchecked exception and rethrow:

  public JSONArray toJSONObject() {
    try {
        JSONObject result = new JSONObject();
        ...
    } catch (JSONException e) {
        throw new RuntimeException(e);
    }
}

Summary

Public constructors
`JSONException(String s)`
`JSONException(String message, Throwable cause)`
`JSONException(Throwable cause)`

Inherited methods

From class


        
          java.lang.Throwable

`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.

From class


        
          java.lang.Object

`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

JSONException

Added in API level 1

public JSONException (String s)

Parameters
`s`	`String`

JSONException

Added in API level 27

public JSONException (String message, 
                Throwable cause)

Parameters
`message`	`String`
`cause`	`Throwable`

JSONException

Added in API level 27

public JSONException (Throwable cause)

Parameters
`cause`	`Throwable`

Content and code samples on this page are subject to the licenses described in the Content License. Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.

Last updated 2026-08-03 UTC.

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java.lang.Object
↳	java.lang.Throwable
	↳	java.lang.Exception
		↳	org.json.JSONException

Sunbelt Computer Software

PL/B Language Development and Support

JSONException

Summary

Public constructors

Inherited methods

Public constructors

JSONException

JSONException

JSONException