Unhandled Exception in JSP

Reports exceptions that are thrown by top-level JSP scriptlets.

Example:

  <%!
  String getFormattedDate() {
    ...
    throw new IllegalArgumentException(...); // Error
  }
  %>
  <html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>Hello, JSP!</title>
  </head>
  <body>
  <i>Today is <%= getFormattedDate() %></i>
  </body>
  </html>

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.

UnhandledExceptionInJSP

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

NOTE: Such JSP pages will compile, because the servlet container wraps all JSP code in a try {} catch() {} block, but they will produce runtime exceptions when deployed on the server.

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 UnhandledExceptionInJSP

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

IntelliJ IDEA 2025.2

Inspection Details
By default bundled with:	IntelliJ IDEA 2025.2, Qodana for JVM 2025.2,

Last modified: 18 September 2025