CODEWITHSUNDEEP
intellij-ideaproperties-file
Erran Morad
Erran Morad

Reputation: 4753

Why does Intellij IDEA say that used properties are unused?

I have a properties file in my Java maven project. I have one class which loads these properties and stores them as constants.

//Constants.java file has this code.
Properties properties = new Properties(blah...);
String username = properties.getProperty("my.username");
System.out.println(username);

Despite using my.username property and the username variable, Intellij IDEA says that it is unused. Why ? I tried to invalidate caches and restart the IDE, but it did not change anything.

As a result, its hard to find out which properties are actually unused and remove them.

Here is the project structure :

PROJECT1

-> PROJECT2
--> src > main > resources > folder > my.properties
--> pom.xml

-> PROJECT3
--> src > main > java > packagea.b.c > packaged > packagee > Constants.java
--> pom.xml

pom.xml

Upvotes: 2

Views: 4378

Answers (1)

CrazyCoder
CrazyCoder

Reputation: 402493

The issue is not reproducible:

unused property

If you have the Minimal, Complete, and Verifiable example, please share it so that we can investigate why the it happens in your specific project.

Here is the properly working sample: unused-properties.zip.

To match your multi module Maven project from the description I've created another sample project to illustrate the configuration and the properly working inspection.

Get the sample project here: unused-multimodule-maven.zip.

This project has an aggregate pom.xml in the root directory and 2 modules: app and properties where app depends on properties.

Proof of working screenshot:

Multi module Maven also works

Notice that the app module depends on the properties module. This dependency is achieved via the following pom.xml configuration of the app module.

    <dependencies>
        <dependency>
            <groupId>com.jetbrains.support</groupId>
            <artifactId>properties</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>

Upvotes: 3

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