EL method signature inspection

Reports method calls in EL that don't match method-signature constraints in TLD files.

Example Java class:

public class ExampleAction {
  public void goodAction() { ... }
  public void badAction(String str) { ... }
}

Example JSP file:

<jsp:useBean id="example" scope="request" type="org.example.ExampleAction"/>
<f:view>
  <h:commandButton action="#{example.goodAction}"/> // Good: method accepts zero arguments and returns `void`
  <h:commandButton action="#{example.badAction}"/> // Error: method `void badAction(String)` returns `java.lang.String` type instead of `void`
</f:view>

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.

ELMethodSignatureInspection

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 | JSP

Availability

By default bundled with: IntelliJ IDEA 2024.1, Qodana for JVM 2024.1,
Can be installed with plugin: Jakarta EE: Server Pages (JSP), 241.18072

Last modified: 18 June 2024