Why Doesn\'t IntelliJ IDEA Detect Errors in My Java Code?

Error Detection in IntelliJ IDEA: Addressing Undetected Errors

IntelliJ IDEA, a popular IDE for Java programming, offers comprehensive error detection capabilities. However, users may occasionally encounter instances where errors are not detected even when inspections are enabled.

You've activated all the inspections in IntelliJ IDEA 2017.1 but it fails to detect errors in your Java code, despite having made mistakes such as missing brackets or semicolons.

The issue may lie with your source root configuration. Java files located outside of the designated source root are not analyzed for errors. To resolve this:

• Relocate the Java file to a directory within the source root.
• Reconfigure the content roots to include the directory where the file is located.

In the project view, the source root is indicated by a blue highlight. Ensure that your Java file resides within this directory, as shown in the correctly configured project example provided in the answer.

Once the source root is configured correctly, IntelliJ IDEA will analyze the Java file and detect errors as expected.

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