JavaScript is not currently enabled, but is required for full CodeSonar manual search and browse functionality.

If you are viewing this file in your hub's Web GUI, enable JavaScript in your browser: you will also need it for GUI functionality.

If you opened this file directly from disk, your browser may be directly suppressing JavaScript functionality: certain browsers perform this suppression on local files (but not files delivered by web servers) for security reasons.

CodeSonar® 9.2p0 CONFIDENTIAL CodeSecure Inc
Java


JAVA.REDUNDANT.EQUALSF : equals Always Fails (Java)

Summary

Two objects are compared by equals() but the comparison will always fail.

This checker identifies incorrect or inefficient comparisons through equals() or ==. In some cases, these comparisons are wrong: for instance, strings should be compared for equality through equals() rather than through ==. Classes can be safely compared through == instead. In other cases, these comparisons can be replaced by more efficient code.

Properties

Class Name equals Always Fails (Java)
Significance reliability
Mnemonic JAVA.REDUNDANT.EQUALSF
Categories
CWE CWE:570 Expression is Always False
Availability Available for Java and Kotlin.
Enabling Checks for this warning class are enabled by default. To disable them, add the following WARNING_FILTER rule to the project configuration file.
WARNING_FILTER += discard class="equals Always Fails (Java)"

Resolution

Check if the equality is actually wrong or can be replaced by more optimized code.

Relevant Configuration File Parameters

The following configuration file parameters affect checks for this warning class.

 

To report problems with this documentation, please visit https://support.codesecure.com/.