General

Annotator  

Reports issues essential to this file (e.g., syntax errors) in the result of a batch code inspection run.

Duplicated code fragment  

Reports duplicated blocks of code from the selected scope: the same file or the entire project.

Empty directory  

Reports empty directories.

Inconsistent line separators  

Reports files with line separators different from the ones that are specified in the project's settings.

Incorrect formatting  

Reports formatting issues that appear if your code doesn't follow your project's code style settings.

Injected references  

Reports unresolved references injected by Language Injections.

Java annotator  

Allows viewing the problems reported by the Java annotator: compilation problems, unresolved by IDEA references, and so on.

Java sanity  

Reports unresolved references in Java code.

Kotlin sanity  

Reports unresolved references in Kotlin code.

Line is longer than allowed by code style  

Reports lines that are longer than the Hard wrap at parameter specified in Settings | Editor | Code Style | General.

Problematic whitespace  

Reports the following problems: Tabs used for indentation when the code style is configured to use only spaces.

Reassigned to plain text  

Reports files that were explicitly re-assigned to Plain Text File Type.

Redundant suppression  

Reports usages of the following elements that can be safely removed because the inspection they affect is no longer applicable in this context: @SuppressWarning annotation, or // noinspection line comment, or /** noinspection */ JavaDoc comment Example: public class C { // symbol is already private, // but annotation is still around @SuppressWarnings({"WeakerAccess"}) private boolean CONST = true; void f() { CONST = false; } }.

TODO comment  

Reports TODO comments in your code.