WrappingRuntimeException (Flink : 2.0-SNAPSHOT API)

java.lang.Object
- java.lang.Throwable
- - java.lang.Exception
  - - java.lang.RuntimeException
    - - org.apache.flink.util.FlinkRuntimeException
      - org.apache.flink.util.WrappingRuntimeException

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

ExceptionInChainedOperatorException, ExceptionInMultipleInputOperatorException
```
public class WrappingRuntimeException
extends FlinkRuntimeException
```
A runtime exception that is explicitly used to wrap non-runtime exceptions.
The exception is recognized (for example by the Task when reporting exceptions as failure causes) and unwrapped to avoid including the wrapper's stack trace in the reports. That way, exception traces are keeping to the important parts.

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

WrappingRuntimeException(String message, Throwable cause)

WrappingRuntimeException(Throwable cause)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Throwable`	`unwrap()`	Recursively unwraps this WrappingRuntimeException and its causes, getting the first non wrapping exception.
`static RuntimeException`	`wrapIfNecessary(Throwable throwable)`	Ensures that any throwable can be thrown as a checked exception by potentially wrapping it.

Methods inherited from class java.lang.Throwable
addSuppressed, fillInStackTrace, 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

- Constructor Detail
  - WrappingRuntimeException
```
public WrappingRuntimeException(@Nonnull
                                Throwable cause)
```
  - WrappingRuntimeException
```
public WrappingRuntimeException(String message,
                                @Nonnull
                                Throwable cause)
```
- Method Detail
  - unwrap
```
public Throwable unwrap()
```
    Recursively unwraps this WrappingRuntimeException and its causes, getting the first non wrapping exception.
    
    Returns:
    
    The first cause that is not a wrapping exception.
  - wrapIfNecessary
```
public static RuntimeException wrapIfNecessary(Throwable throwable)
```
    Ensures that any throwable can be thrown as a checked exception by potentially wrapping it.
    
    Returns:
    
    a runtime exception wrapping the throwable if checked or by returning the throwable if it's a runtime exception.