Call to 'equals()' or 'hashCode()' on 'URL' object

Reports hashCode() and equals() calls on java.net.URL objects and calls that add URL objects to maps and sets.

URL's equals() and hashCode() methods can perform a DNS lookup to resolve the host name. This may cause significant delays, depending on the availability and speed of the network and the DNS server. Using java.net.URI instead of java.net.URL will avoid the DNS lookup.

Example:

  boolean urlEquals(URL url1, URL url2) {
      return url1.equals(url2);
  }

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.

UrlHashCode

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 | JVM languages

Inspection Details
By default bundled with:	IntelliJ IDEA 2024.2, Qodana for JVM 2024.2,
Can be installed with plugin:	Java, 242.22892

Last modified: 11 September 2024