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Too weak variable type leads to unnecessary cast

Reports type casts that can be removed if the variable type is narrowed to the cast type.

Example:

Object x = " string "; System.out.println(((String)x).trim());

Here, changing the type of x to String makes the cast redundant. The suggested quick-fix updates the variable type and removes all redundant casts on that variable:

String x = " string "; System.out.println(x.trim());

New in 2018.2

Inspection Details

By default bundled with:

IntelliJ IDEA 2024.1, Qodana for JVM 2024.1,

Can be installed with plugin:

Java, 241.16690

Last modified: 29 April 2024