SuperFinalize
Since Checkstyle 3.2
Description
Checks that an overriding
finalize() method invokes super.finalize().
Does not check native methods, as they have no possible java defined implementation.
References: How to Handle Java Finalization's Memory-Retention Issues; 10 points on finalize method in Java.
Examples
To configure the check:
<module name="Checker">
<module name="TreeWalker">
<module name="SuperFinalize"/>
</module>
</module>
Example:
class Example1 {
protected void finalize() throws Throwable {
super.finalize(); // ok, calls super.finalize()
}
}
class InvalidExample {
// violation below, 'Method 'finalize' should call 'super.finalize''
protected void finalize() throws Throwable {
}
}
Example of Usage
Violation Messages
All messages can be customized if the default message doesn't suit you. Please see the documentation to learn how to.
Package
com.puppycrawl.tools.checkstyle.checks.coding