Javadoc is coming for class but not coming for methods

Question

I implement javadoc generation in my project and able to make jar for that project by this following -

<plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-javadoc-plugin</artifactId>
            <executions>
                <execution>
                    <id>attach-javadocs</id>
                    <goals>
                        <goal>jar</goal>
                    </goals>
                </execution>
            </executions>
            <configuration>
                    <javadocExecutable>${java.home}/bin/javadoc</javadocExecutable>
                </configuration>
        </plugin>

But when i make the jar for this and added as dependency to other spring boot application there the javadoc comment is populating for the class but not for the methods which are present in that class.

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