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I have a home-work to create a http server with java , a simple one and from scratch . After searching google and here ...i found this link "see the best response" with a very nice response ,so i copy/paste this example to eclipse , but it doesn't recognize the package 

import com.sun.net.httpserver.Headers;
import com.sun.net.httpserver.HttpExchange;
import com.sun.net.httpserver.HttpHandler;
import com.sun.net.httpserver.HttpServer;

can you please help me so i can make eclipse recognize them? Also if isn't asking for to much do you know some other link with a HttpServer example? Thank you in advance !

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Andi Domi
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  • this is what i have read on import in eclipse ...`Access restriction: The type Headers is not accessible due to restriction on required library /usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0/jre/lib/rt.jar` what did you get ? – thar45 Oct 31 '12 at 10:25
  • Did you give these suggestions a try http://stackoverflow.com/questions/860187/access-restriction-on-class-due-to-restriction-on-required-library-rt-jar – Arun Manivannan Oct 31 '12 at 10:44

6 Answers6

57

I had the same problem with Java 8.

com.sun.net.httpserver is not API (there is an access restriction, and Eclipse indicate this as error).

You need to add an access rule "Accessible" for the pattern com/sun/net/httpserver/**:

Add Access Rule

Related question: Access restriction: Is not accessible due to restriction on required library ..\jre\lib\rt.jar

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Jmini
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  • @MarkusL and anyone else wondering the same, see this question: https://stackoverflow.com/questions/41099332/ – Steven Nov 26 '19 at 22:58
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It should be available with JDK from 1.6 onwards. Otherwise, you can add it your buidpath separately. Refer below link:

How to download com.sun.net.httpserver package?

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A.G.
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    Thank you ,i don't know how i missed that useful link !!After i downloaded the link,i right-clicked to my project and then i clicked on the "Properties" and then "Java build path" and then "Libraries" and then i clicked on the "Add external JAR's.." and then i pointed to the library i downloaded and now all works great .Thank you again for all your help ! – Andi Domi Oct 31 '12 at 10:41
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I hit same Issue on Mac OSX 10.8, Eclipse Kepler Service Release 2. I found that it is depends what JVM you use. Changing JVM from Apple(Default) to Oracle resolved the issue.

Yuichi Ito
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If that fails, change the to version 1.8 of the JRE (Java Runtime Engine). Do this by going to the project's properties. Go to "Java Build Path". Go to the "Libraries" tab. Highlight the JRE library and click "Edit...". Under "System Library" select "Execution environment". From the drop-down list select version 1.8. In my case it was listed as "JavaSE-1.8(jdk-17.0.1)". Click "Finish". Click "Apply and close"

Paul de Prado
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By any chance, are you using Java 5.0? Unfortunately, the jar doesn't come bundled with a Java 5.0 SDK and you would want to download the httpserver jar from this location and set it in your classpath.

Arun Manivannan
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  • No i am using java 6 for this project and yet nothing ,that's why i wrote here ,it seams strange ,also as @Thanga said im having the exact error , if i download manually the jar where do i have to copy it (i mean the directory on my pc) as i am not used to this kind of things, also thank you for all your help ! – Andi Domi Oct 31 '12 at 10:38
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The simplest solution for this is to go to build path configuration and change the JRE from the default MAC. Simply remove the one presented and add the one from your java installation path, for example:

Library/Java/JavaCirtualMachines/jdk.1.8.0_191.jdk/Contents/Home/bin

When addding new JREs choose Standard VM instead of MacOS X VM

M. Wojcik
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