Import XXX cannot be resolved for Java SE standard classes

Question

I use Eclipse and turns out I have a bunch of import * not resolved errors.

import java.sql.Date;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.Timestamp;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

All of the above have the same error. I checked my java version it is 1.7.0 open jdk. I updated Java Home and the JRE library to use. Its still not working. Note: I imported the code repository from bibucket via the mercurial plugin itself.

Did you check the installed JREs in your eclipse. Path is windows preferences - > java -> installed JREs — NullPointerException, Jun 04 '13 at 13:21
Your project build path is not configured. You need a JRE entry in there. — Marko Topolnik, Jun 04 '13 at 13:21

score 117 · Accepted Answer · edited Jun 04 '13 at 13:22

117

Right click on project - >BuildPath - >Configure BuildPath - >Libraries tab - >

Double click on JRE SYSTEM LIBRARY - >Then select alternate JRE

edited Jun 04 '13 at 13:22

thegrinner

11,546
5
41
64

answered Jun 04 '13 at 13:21

PSR

39,804
41
111
151

Break points? I'm a newbie at Java. I usually run the project on the server from eclipse. Now it throws the error. – Karthik Jun 04 '13 at 13:31
12

@PSR, Why does this answer work? Why wouldn't the default JRE be usable? – Pacerier Nov 16 '14 at 12:57
1

In my case, I selected Default Workspace JRE and it removed the errors. – vish213 Jul 12 '18 at 09:09

score 47 · Answer 2 · edited May 26 '14 at 03:15

47

If the project is Maven, you can try this way :

right click the "Maven Dependencies"-->"Build Path"-->"Remove from the build path";
right click the project ,navigate to "Maven"--->"Update project....";

Then the import issue should be solved .

edited May 26 '14 at 03:15

James King

6,229
3
25
40

answered May 26 '14 at 02:49

Alter Hu

739
1
7
15

2

Thanks a lot. I was literally pissed off with this import thing. – Snehal Masne Dec 18 '14 at 10:14
I did this for the other maven project that had the class being imported, and it worked – etherous Mar 18 '15 at 20:50
2

@Alter.hu it helps me for a while. After i clean my Maven project and change something in my java class(add some code for example) and save - i got the same problem. It repeats all the time. Any suggestions would be helpful. – Oleg Kuts Aug 23 '15 at 22:20
This helped, along with deleted a specific repo that was giving me problem in my ~/.m2 directory – dessalines Oct 01 '15 at 18:53
Thanks; for me I just need the 2nd step. – Hack-R Oct 15 '16 at 16:43
and where can I find "Maven Dependencies"? – Line May 04 '17 at 16:23
1

@Line When you import the project is a maven project in eclipse ,it should have a project level's view folder "Maven Dependencies". – Alter Hu Jun 06 '17 at 01:56
1+ for giving solution for Maven projects too – Dec 20 '17 at 08:03

score 1 · Answer 3 · answered Jun 29 '15 at 10:21

This is an issue relating JRE.In my case (eclipse Luna with Maven plugin, JDK 7) I solved this by making following change in pom.xml and then Maven Update Project.

from:

 <configuration>
        <source>1.8</source>
        <target>1.8</target>
</configuration>

to:

 <configuration>
        <source>1.7</source>
        <target>1.7</target>
</configuration>

Screenshot showing problem in JRE: enter image description here

score 0 · Answer 4 · answered Feb 03 '15 at 08:32

0

If by chance you have deleted JRE SYSTEM LIBRARY, then go to your JRE installation and add jars from there.

Eg:- C:\Program Files (x86)\Java\jre7\lib ---add jars from here

C:\Program Files (x86)\Java\jre7\lib\ext ---add jars from here

answered Feb 03 '15 at 08:32

Divya

11
3

Import XXX cannot be resolved for Java SE standard classes

4 Answers4

Linked

Related