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Possibly lossy implicit cast in compound assignment

Reports compound assignments if the type of the right-hand operand is not assignment compatible with the type of the variable.

During such compound assignments, an implicit cast occurs, potentially resulting in lossy conversions.

Example:

long c = 1; c += 1.2;

After the quick-fix is applied:

long c = 1; c += (long) 1.2;

Locating this inspection

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.

LossyConversionCompoundAssignment
Via Settings dialog

Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.

Settings or Preferences | Editor | Inspections | Java | Numeric issues

New in 2023.2

Availability

By default bundled with

IntelliJ IDEA 2024.1, Qodana for JVM 2024.1,

Can be installed with plugin

Java, 241.18072

Last modified: 18 June 2024