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Call to suspicious 'String' method

Reports calls of:

  • equals()

  • equalsIgnoreCase()

  • compareTo()

  • compareToIgnoreCase() and

  • trim()

on String objects. Comparison of internationalized strings should probably use a java.text.Collator instead. String.trim() only removes control characters between 0x00 and 0x20. The String.strip() method introduced in Java 11 is more Unicode aware and can be used as a replacement.

Locating this inspection


Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

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 | Internationalization


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