Issues regarding package in java

Question

I have been using java for last few days,I am getting an issue form last few days. When i am trying to create a class in servlet the package section is showing the following error "**

• The type java.io.ObjectInputStream cannot be resolved. It is indirectly referenced from required .class files

  while i try to comment out the

• import javax.servlet.http.HttpServlet;

**" section the error is going, but for that i cant extend the httpservlet class. please help me out for this issue.

This image shows the error:

Answer 1

Include servlet-api-3.1.jar in your dependencies.

Maven

<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>javax.servlet-api</artifactId>
    <version>3.1.0</version>
    <scope>provided</scope>
</dependency>

Gradle

configurations {
    provided
}
sourceSets {
    main { compileClasspath += configurations.provided }
}
dependencies {
    provided 'javax.servlet:javax.servlet-api:3.1.0'
}