IDE doesn't start with java.lang.UnsupportedClassVersionError exception

Problem

When trying to start the IDE, the following error occurs:

Error occurred during initialization of VM 
java.lang.UnsupportedClassVersionError: com/intellij/platform/core/nio/fs/CoreBootstrapSecurityManager has been compiled by a more recent version of the Java Runtime (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to 55.0

at java.lang.ClassLoader.defineClass1(java.base@11.0.26/NativeMethod)
at java.lang.ClassLoader.defineClass(java.base@11.0.26/ClassLoader.java:1021)
at java.security.SecureClassLoader.defineClass(java.base@11.0.26/SecureClassLoader.java:174)
at jdk.internal.loader.BuiltinClassLoader.defineClass(java.base@11.0.26/BuiltinClassLoader.java:800)
at jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(java.base@11.0.26/BuiltinClassLoader.java:698)
at jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(java.base@11.0.26/BuiltinClassLoader.java:621)
at jdk.internal.loader.BuiltinClassLoader.loadClass(java.base@11.0.26/BuiltinClassLoader.java:579)
at jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(java.base@11.0.26/ClassLoaders.java:178)
at java.lang.ClassLoader.loadClass(java.base@11.0.26/ClassLoader.java:526)
at java.lang.Class.forName0(java.base@11.0.26/Native Method)
at java.lang.Class.forName(java.base@11.0.26/Class.java:398)
at java.lang.System.initPhase3(java.base@11.0.26/System.java:206)

Please try to reinstall the IDE.
For support, please refer to:
https://jb.gg/ide/critical-startup-errors

Cause

This issue typically occurs when the IDE is launched using a custom Java Runtime Environment instead of the recommended JetBrains Runtime (JBR). Using an unsupported or incompatible Java version can lead to various runtime errors and instability.

Resolution

To reset the runtime used to start the IDE to the default JetBrains Runtime bundled with the IDE, perform the following steps:

1. Make sure the IDE is closed and the IDE process is not running.
2. Delete the idea.jdk file from your IDE configuration directory.
3. Restart your IDE to confirm it launches correctly.

To set a specific JDK version for your projects, follow the steps described in this article.

See also: Error occurred during initialization of VM java.lang.UnsupportedClassVersionError: com/intellij/platform/core/nio/fs/CoreBootstrapSecurityManag er has been compiled by a more recent version of the Java Runtime (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to