ReaderException

java.lang.Object
- java.lang.Throwable
- - java.lang.Exception
  - - com.google.zxing.ReaderException

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

ChecksumException, FormatException, NotFoundException
```
public abstract class ReaderException
extends java.lang.Exception
```
The general exception class throw when something goes wrong during decoding of a barcode. This includes, but is not limited to, failing checksums / error correction algorithms, being unable to locate finder timing patterns, and so on.

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type Field Description

protected static boolean isStackTrace

protected static java.lang.StackTraceElement[] NO_TRACE

Constructor Summary

Constructors
Constructor Description

ReaderException()

ReaderException(java.lang.Throwable cause)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.Throwable`	`fillInStackTrace()`
`static void`	`setStackTrace(boolean enabled)`	For testing only.

Methods inherited from class java.lang.Throwable
addSuppressed, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - isStackTrace
```
protected static boolean isStackTrace
```
  - NO_TRACE
```
protected static final java.lang.StackTraceElement[] NO_TRACE
```
- Constructor Detail
  - ReaderException
```
ReaderException()
```
  - ReaderException
```
ReaderException(java.lang.Throwable cause)
```
- Method Detail
  - fillInStackTrace
```
public final java.lang.Throwable fillInStackTrace()
```
    Overrides:
    
    fillInStackTrace in class java.lang.Throwable
  - setStackTrace
```
public static void setStackTrace(boolean enabled)
```
    For testing only. Controls whether library exception classes include stack traces or not. Defaults to false, unless running in the project's unit testing harness.
    
    Parameters:
    
    enabled - if true, enables stack traces in library exception classes
    
    Since:
    
    3.5.0