'String.equals()' can be replaced with 'String.isEmpty()'
Reports equals()
being called to compare a String
with an empty string. In this case, using .isEmpty()
is better as it shows you exactly what you're checking.
Example:
void checkString(String s){
if ("".equals(s)) throw new IllegalArgumentException();
}
After the quick-fix is applied:
void checkString(String s){
if (s != null && s.isEmpty()) throw new IllegalArgumentException();
}
- By ID
Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.
StringEqualsEmptyString
"".equals(str)
returns false when str
is null. For safety, this inspection's quick-fix inserts an explicit null-check when the equals()
argument is nullable. Use the option to make the inspection ignore such cases.
Here you can find the description of settings available for the 'String.equals()' can be replaced with 'String.isEmpty()' inspection, and the reference of their default values.
Inspection Details | |
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By default bundled with: | |
Can be installed with plugin: | Java, 243.23126 |
Thanks for your feedback!