CODEWITHSUNDEEP
javaintellij-idea
Nick
Nick

Reputation: 1269

Intellij Override warnings

I'm having an annoying issue with IntelliJ where it's putting yellow warning lines under my @Override annotations when implementing an interface?

enter image description here

Any ideas why?

Cheers.

EDIT: Error reads "'@Override not applicable to method'".

Interface decleration:

public interface Material {

public long getID();

public String getMaterialCode();

public String getMaterialShortName();

public String getMaterialLongName();

}

class deceleration:

public class StandardMaterial implements Material {

private long id;
private String materialCode;
private String materialShortName;
private String materialLongName;

public long getID() {
    return id;
}

@Override
public String getMaterialCode() {
    return materialCode;
}

@Override
public String getMaterialShortName() {
    return materialShortName;
}

@Override
public String getMaterialLongName() {
    return materialLongName;
}

}

(Using Java 8)

enter image description here

Upvotes: 1

Views: 5223

Answers (3)

erdem karayer
erdem karayer

Reputation: 37

Do not write your methods manually. Could you create only a StandardMaterial class that implements a Material interface, and then ctrl + space to generate implemented methods automatically? Also, your getID method does not have an override annotation.

Upvotes: 0

Guido Forrestor
Guido Forrestor

Reputation: 49

If it is a maven project, make sure that you have a definition for the maven-compiler-plugin in your pom.xml where you explicitely set the compile and source level to at least 1.6.

For example: 

<plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.2</version>
            <configuration>
                <source>1.6</source>
                <target>1.6</target>
            </configuration>
</plugin>

It defaults to 1.5 so @Override is not available yet. Intellij Idea seems to evaluate the compiler plugin even if it's not specified.

Upvotes: 3

NimChimpsky
NimChimpsky

Reputation: 47290

Override annotation for interfaces is only supported with java 6 and higher.

Check intellij is using the correct jdk and language level, and also maven (or whatever build tool you use outside of intellij). Check you have not overridden the project sdk for this particualr module.

Upvotes: 1

Related Questions