Confusing primitive array argument to varargs method

Reports any calls to a variable arity method where the call has a primitive array in the variable arity parameter position (for example, System.out.printf("%s", new int[]{1, 2, 3})). Such a primitive-array argument may be confusing, as it will be wrapped as a single-element array, rather than each individual element being boxed, as might be expected.

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PrimitiveArrayArgumentToVariableArgMethod

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Example:

String.format("%s", new int[]{1, 2, 3});

After the quick-fix is applied:

String.format("%s", (Object) new int[]{1, 2, 3});

This inspection depends on the Java feature 'Variable arity methods', which is available since Java 5.

Inspection Details
By default bundled with:	IntelliJ IDEA 2024.3, Qodana for JVM 2024.3,
Can be installed with plugin:	Java, 243.23126

Last modified: 03 December 2024