Redundant 'File' instance creation

Reports redundant File creation in one of the following constructors when only String path can be used: FileInputStream, FileOutputStream, FileReader, FileWriter, PrintStream, PrintWriter, Formatter.

Example:

InputStream is = new FileInputStream(new File("in.txt"));

After quick-fix is applied:

InputStream is = new FileInputStream("in.txt");

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.

RedundantFileCreation

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 | Verbose or redundant code constructs

Inspection ID: RedundantFileCreation

New in 2020.3

Suppressing Inspection

You can suppress this inspection by placing the following comment marker before the code fragment where you no longer want messages from this inspection to appear:

//noinspection RedundantFileCreation

More detailed instructions as well as other ways and options that you have can be found in the product documentation:

IntelliJ IDEA 2025.3

Inspection Details
By default bundled with:	IntelliJ IDEA 2025.3, Qodana for JVM 2025.3,

Last modified: 03 December 2025