# Remove Unnecessary Thrown Exceptions on Method Signatures

# Properties

# Description

Removes the following exceptions on method signatures:

1. Exceptions that are subtypes of already thrown exceptions
2. Exceptions that are thrown more than once
3. Exceptions that are inheriting from RuntimeException

# Benefits

Improves the readability by removing code that adds no information on the method signature.

# Requirement & Tags

# Code Changes

# Declaring a throws exception whose parent type is already thrown

Pre

public void throwingChildAndParent() throws ChildException, ParentException {
	...
}

Post

public void throwingChildAndParent() throws ParentException {
	...
}

# Declaring a throws exceptions more than once

Pre

public void throwingTheSameExceptionTwice_() throws Exception, Exception {
	...
}

Post

public void throwingTheSameExceptionTwice_() throws Exception {
	...
}

# Declaring a throws Unchecked exception

Pre

public void throwingRuntimeException() throws ArrayIndexOutOfBoundsException {
	...
}

Post

public void throwingRuntimeException() {
	...
}