Where to get the tools.jar to use with the Java 8 jdk early release

Question

Where to get tools.jar for Java 8 JDK early release? Without it, my Java 1.8 Maven pom based projects in Netbeans will not compile.

The Java 8 early release is set in the Java Platforms setting and all the Java 8 projects that are not Maven-based will compile and run.

https://jdk8.java.net/download.html

It is not found on the downloads page, I can not find anything in their search.

Does anyone have success compiling Maven pom based projects with the Java 8 early release?

Can the old tools.jar be used or where did you find it?

It's in the JDK. You didn't accidentally download the JRE did you? There are several questions in a similar vein on this site that mention the same issue — Anya Shenanigans, Nov 01 '13 at 08:19
@Petesh I had the JDK from early in October (JDK, not JRE) and I verified it is not there. I just reinstalled the JDK from the most recent version and it is there. — The Coordinator, Nov 01 '13 at 08:57
I rolled back your edit. You are not allowed to add answers in the body of the question. If you found an alternative solution then please add it in the space below where all the other answers go. — Dharman, Dec 31 '20 at 18:37
The age of the question has nothing to do with it. You should not have put it there in the first place. If this is a clarification of the problem then you should remove the big ANSWER part. It is confusing. However, it doesn't look as a clarification, it looks like a solution in which case it invalidates the question and should be removed. If you want to keep it then add it as an answer below. That's how Q&A sites work. — Dharman, Dec 31 '20 at 18:52

Anya Shenanigans · Answer 1 · 2021-01-06T13:53:47.693

18

The tools.jar file on the 1.8.0 JDK is located in jdk1.8.0/lib/tools.jar. If it's not there, then you don't have the JDK installed correctly.

Please see the accepted answer - the tools.jar file was omitted in a specific early access revision (jdk-8-ea-bin-b106-windows-i586-05_sep_2013.exe).

edited Jan 06 '21 at 13:53

answered Nov 01 '13 at 08:54

Anya Shenanigans

91,618
3
107
122

2

In my jdk1.8.0_102 it's not there any more. – Martin Stein Oct 04 '16 at 19:04
1

Details are important when you make mention of 'it not being there any more' - what platform, exactly what version, how did you install it, etc… I'm looking at the i686 version of java installed on windows and it has tools.jar in `c:/program files (x86)/Java/jdk1.8.0_102/lib/tools.jar` – Anya Shenanigans Oct 05 '16 at 07:31
See 'Answer on the behalf of OP' below. Basically, Oracle didn't bundle it in certain versions - seemingly by accident. – The Coordinator Jan 04 '21 at 21:26

score 8 · Answer 2 · answered Jul 22 '16 at 14:03

8

You just need to install devel package. On RHEL family it's like this:

# yum install java-1.8.0-openjdk-devel

answered Jul 22 '16 at 14:03

mironq

346
1
3
9

Crazy that you need to install an additional devel package for the open Java *Development* Kit to work. – Alan Evangelista Jun 26 '21 at 12:01

score 6 · Answer 3 · edited Jan 07 '21 at 01:03

6

I had a similar problem when using Hadoop-Common-2.7.2 as a dependency. I resolved the problem by adding the following exclusions to my POM.xml file:

<dependency>
    <groupId>org.apache.hadoop</groupId>
    <artifactId>hadoop-common</artifactId>
    <version>2.7.2</version>
    <exclusions>
        <exclusion>
            <groupId>jdk.tools</groupId>
            <artifactId>jdk.tools</artifactId>
        </exclusion>
    </exclusions>
</dependency>

edited Jan 07 '21 at 01:03

Cody Gray - on strike

239,200
50
490
574

answered Jul 16 '16 at 08:10

Praveen Kumar K S

3,024
1
24
31

Thanks this worked perfectly. But for future reference, if tools.jar is needed, where do I get it from? It is not in my java\jdk-14.0.1\lib or bin folders. – Shervin Rad Aug 02 '20 at 19:13
It should be in that folder, if it's not you might have installed wrong version or corrupted version. In windows it will be in c:/Prog~File@~/java/JDK ~/lib folder. – Praveen Kumar K S Dec 21 '20 at 03:32

score 2 · Answer 4 · edited Jan 07 '21 at 06:23

2

You can download any version of the tools.jar file. For example, it is available from java2s.com. It would be preferable, though, to find it on the official Oracle site, if possible.

After downloading any version of the tools-x.x.jar file, simply rename it to tools.jar (removing the version number) and place it in the jrex.x/lib folder.

edited Jan 07 '21 at 06:23

Cody Gray - on strike

239,200
50
490
574

answered Mar 11 '16 at 13:00

itzy

21
1

score 2 · Answer 5 · answered Apr 20 '20 at 14:03

Some JDK packages contain just the Java Runtime Environment.

So for instance in Fedora, Oracle Linux, RHEL, CentOS java-1.8.0-openjdk package contains just the JRE. If you want the development tools, then install the java-1.8.0-openjdk-devel package instead.

And in Debian/Ubuntu openjdk-8-jre package contains just the JRE. If you want the development tools, then install the openjdk-8-jdk package instead.

score 2 · Answer 6 · edited Jan 04 '21 at 21:00

2

The file tools.jar was removed in Java 9. Please see "Removed Tools and Components" on Oracle.com JDK 9 page here

edited Jan 04 '21 at 21:00

The Coordinator

13,007
11
44
73

answered May 27 '20 at 14:59

psd

31
1

score 1 · Answer 7 · edited Jan 07 '21 at 06:28

1

I had a similar problem and found the solution in the Android Public Issue Tracker: tools.jar not packed in lib of Java JDK 8 and Android studio gives tools.jar missing error.

As kn...@gmail.com states in comment #8, the error appears only when the JDK is not installed in its default directory. The problem is resolved by reinstalling the JDK into its default directory.

edited Jan 07 '21 at 06:28

Cody Gray - on strike

239,200
50
490
574

answered Jun 10 '16 at 14:31

Etic

291
4
9

score 1 · Answer 8 · edited Sep 08 '17 at 15:23

1

Make sure you look into the folder C:/Program Files/Java/jdk1.8.0_version/lib instead of C:/Program Files (x86)/Java/jdk1.8.0_version/lib

edited Sep 08 '17 at 15:23

Leonardo Alves Machado

2,747
10
38
53

answered Sep 08 '17 at 13:26

Sami

295
2
6
10

Sabito stands with Ukraine · Accepted Answer · 2021-01-05T06:39:17.247

1

Answer on the behalf of question author:

This version is missing tools.jar: jdk-8-ea-bin-b106-windows-i586-05_sep_2013.exe

It is now in the most recent release.

edited Jan 05 '21 at 06:39

answered Dec 30 '20 at 12:41

Sabito stands with Ukraine

4,271
8
34
56

6

This q/a is being discussed in the [meta](https://meta.stackoverflow.com/questions/404191/are-m) – TheMaster Jan 02 '21 at 12:33
I purposely put the answer in the original question because Oracle accidentally omitted `tools.jar` from the exe install file for *only/just that version*. This is very unexpected! I would not expect others to read this page and digest all the various answers to find out why it is missing. The most immediate thing tome was to present the unexpected answer. That is why. I only wanted to save people from digesting this entire page to fix this bug. Of course, there is nothing wrong with other answers. However, I wanted to curate the primary issue, i.e., *Oracle forgot to bundle it in the exe.* – The Coordinator Jan 04 '21 at 21:19
I would suggest that if the issue only appears in a specific release, then either 1. information about the specific release should appear in the question (which it may be; I don't think I am familiar enough with Java to definitely exclude the possibility), or 2. the answer should be better phrased as something like "If you are using version `X`, version `X` was missing `tools.jar`. This has been fixed in later versions / from version `Y`. I think 2 is the better option here, so as not to invalidate all the other answers. – Zev Spitz Jan 05 '21 at 06:34

score 0 · Answer 10 · edited Jan 04 '21 at 20:47

0

When I looked at Eclipse > Window > preference > Java > Installed JRE >, it was pointing to JRE, which seems obvious. However, when I changed it to point to JDK, the compile error was resolved. This is because there is tools.jar in the JDK folder.

Before this, I had tried copying tools.jar from jdk/lib to jre/lib. However, that did not solve the issue.

edited Jan 04 '21 at 20:47

The Coordinator

13,007
11
44
73

answered Nov 27 '17 at 18:57

Akshay Vijay Jain

13,461
8
60
73

I tried changing JRE to JDK, I do have tools.jar in jdk. C:\Program Files\Java\jdk1.8.0_221. But it does not work - eclipse somehow keeps pointing to the JRE folder. **I applied and restarted eclipse.** – Sam-T Feb 06 '20 at 21:35
My JAVA_HOME also point to jdk (since begining). Eclipse keeps giving this tools.jar error. Added the STS plugin but Spring does not show up in the New project list. I guess it is related to this tools.jar. The jre list in eclipse itself points to the jdk folder, does not show tools.jar in the list. – Sam-T Feb 07 '20 at 00:06

score 0 · Answer 11 · edited Jan 04 '21 at 20:33

0

Simply copy the tools.jar from your jdk\lib folder and paste into jre\lib folder.

edited Jan 04 '21 at 20:33

The Coordinator

13,007
11
44
73

answered Jun 01 '19 at 04:23

Fahad

56
6

score 0 · Answer 12 · edited Jan 04 '21 at 20:39

The solution is to update the eclipse.ini file. If no JDK is used for Eclipse, change it:

Quit Eclipse if it is running
Go to the Eclipse installation directory and open the file eclipse.ini in a text editor
Search for the line -vmargs
Before the line -vmargs, add two lines:
- On the first line, write -vm
- On the second line, write the path to your JDK installation (usually something like: C:\Program Files\Java\jdk1.6.0_31\bin\javaw.exe on Windows)*

Solution also documented here

score 0 · Answer 13 · edited Jan 04 '21 at 20:42

0

If using Reactive Native:

Install the latest JDK from here.
If the problem not solved then go back to react-native documentation about installing react native (android) on mac, here

In root of your reactnative project:

cd android
./gradlew clean 
./gradlew assembleRelease

edited Jan 04 '21 at 20:42

The Coordinator

13,007
11
44
73

answered Dec 30 '20 at 12:33

arash peymanfar

63
4

Where to get the tools.jar to use with the Java 8 jdk early release

13 Answers13

Linked