In the
Java programming
Java is a high-level, general-purpose, memory-safe, object-oriented programming language. It is intended to let programmers ''write once, run anywhere'' ( WORA), meaning that compiled Java code can run on all platforms that support Java w ...
language,
heap pollution is a situation that arises when a variable of a
parameterized type refers to an object that is not of that parameterized type.
[
] This situation is normally detected during
compilation and indicated with an
unchecked warning.
[ Later, during runtime heap pollution will often cause a ClassCast Exception.][
]
Heap pollution in Java can occur when type arguments and variables are not reified at run-time. As a result, different parameterized types are implemented by the same class or interface
Interface or interfacing may refer to:
Academic journals
* ''Interface'' (journal), by the Electrochemical Society
* '' Interface, Journal of Applied Linguistics'', now merged with ''ITL International Journal of Applied Linguistics''
* '' Inter ...
at run time. All invocations of a given generic type declaration share a single run-time implementation. This results in the possibility of heap pollution.[
Under certain conditions, a variable of a parameterized type may refer to an object that is not of that parameterized type. The variable will always refer to an object that is an instance of a class that implements the parameterized type.
Heap Pollution in a non- varargs context
public class HeapPollutionDemo
]
Further reading
*
*
*
*
References
Java platform
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