Unable to locate tools jar

Question

Possible Duplicate    Unable to locate tools jar       I m trying to use ant to compile using this command     ant compile   I don t know if the problem comes from my windows 64bit  or by something else  Because I have java Installed in the 64  amp  32 prog files      I downloaded apache-ant-1 8 2-bin and putted it in C  Program Files apache-ant-1 8 2  I tried to put ant everywhere  I switched also the ENV PATH between java 64 and 32 but everytime I get this error message       Unable to locate tools jar  Expected to find it in C  Program   Files Java jre6 lib tools jar   I searched for tools jar in the ant lib folder  in the java 64 and 32  but no trace of it in the system   What do you think

User · Answer

This happens when the Environment Variable JAVA_HOME is not set, or points to the wrong directory. You can see the value that Ant has by running the command:

ant -diagnostics

And looking for the line that shows java.home. If you have grep installed then you can simple run:

ant -diagnostics | grep java.home

To fix the issue, set the JAVA_HOME Environment Variable to the JDK directory. While setting the variable differs slightly between *nix and Windows, the rest works the same on all operating systems. So it doesn't matter if you use the GUI that Windows provides, or the set or setx commands, as long as the value is set prior to calling ant (if you've set it globally then it must exist before you open the shell/terminal window).

After setting JAVA_HOME you can run ant -version, for example, and get the result, e.g.

Apache Ant(TM) version 1.10.8 compiled on May 10 2020

User · Answer

Incase it helps  the problem for me was that I had 2 entries in my PATH environment variable which pointed to a location containing the javaw executable   I cleaned up the variable to make sure that   JAVA HOME  bin  was the only entry referencing a location containing my java executables

User · Answer

Expected to find it in C  Program Files Java jre6 lib tools jar   if you have installed jdk then     Java jdkx x x   folder must exist there so in stall it and give full path like  C  Program Files Java jdk1 6 0 lib tools jar

User · Answer

Make sure that both the  JAVA HOME  and  JAVA HOME  bin paths are added to your PATH variable   All the answers about copying tools jar into the correct position is a poor idea at best   Make sure that your IDE can find these jars the way it was designed and intended for

User · Answer

In case this is still an issue for anyone  I have a bit of clarification on the previous answers  I was running into this same issue using ant with only a JDK installed  Although  the JDK installer gave me a directory structure like this    Directory of C  Program Files Java  05 08 2012  09 43 AM     lt DIR gt             05 08 2012  09 43 AM     lt DIR gt              05 08 2012  09 46 AM     lt DIR gt           jdk1 7 0 04 05 08 2012  09 19 AM     lt DIR gt           jre6 05 08 2012  09 44 AM     lt DIR gt           jre7                0 File s               0 bytes   and when I ran ant  it complained about not finding tools jar under the jre7 subdirectory  It wasn t until I set  JAVA HOME C  Program Files Java jdk1 7 0 04  that the error went away

User · Answer

If you re in a RHEL environment the package name containing tools jar would end with  openjdk-devel

User · Answer

I had the same issue on a linux machine  I was quite frustrated at first  because I have installed both the JDK and JRE  I am using version 1 6  1 7 and 1 8 simultaneously  and I have played a lot with the alternatives to have everything set properly   The problem was quite stupid to solve  yet counter-intuitive  While I was using the correct JDK  I paid attention to the path of the tools jar maven complained about - it was expecting it to be    JAVA HOME    lib tools jar   The  JAVA HOME variable pointed directly to my jdk folder   usr local java which was also the correct  PATH entry and alternative sym link   It actually searches for the lib folder outside the java directory  because    JAVA HOME    lib tools jar   will resolve to    usr local lib tools jar   and that is not a valid location   To solve this  the  JAVA HOME variable should instead point to this location  usr local java jre  assuming the JDK path is  usr local java  -- there is actually jre folder inside the JDK installation directory  that comes with each JDK  This new setup will cause maven to look at the JRE directory  that is part of the JDK    JAVA HOME    lib tools   which now resolves to   usr local java jre    lib tools jar   and finally to   usr local java lib tools jar   which is where the tools jar really resides   So  even of you are indeed using the JDK instead of the JRE  the  JAVA HOME has to point to the JRE  Remember  the OS alternative should still refer to the JDK

User · Answer

maven-compiler-plugin use jdk  not jre      tools jar is in C  Program Files Java jdk1 6 0 lib tools jar you must config project JRE System Libary with  jdk not jar  This is the simplest solution

User · Answer

You may face similar problem on Ubuntu   Embedded error  tools jar not found   usr lib jvm java-7-openjdk-amd64 jre    lib tools jar   The problem is with JAVA HOME that is not set properly   So  on Ubuntu 14 04 x64 using Java8   sudo apt-get install openjdk-8-jdk openjdk-8-jre export JAVA HOME  usr lib jvm java-8-openjdk-amd64

User · Answer

Make sure that your classpath is set correctly and pointing to the correct version of the JDK that you have installed   Also  are you using Open JDK  I have had this issue before after I tried to move from open JDK to Suns JDK   This is an example of how that issue could be fixed

User · Answer

In eclipse window  preferences Java  Installed JRE  I pointed the directory to the jre directory in the jdk 1 7 and i worked file for me e g C  Program Files Java jdk1 7 0 71 jre

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If you have installed JDK 9 0 1 you will also have this problem as the tools jar has been deprecated  See migration document

User · Answer

Right click on your ant file Go to  Run as  then click on  Ant Build     Go to the  JRE  tab Select a JDK and not a JRE

User · Answer

solving this problem I have simply copied the tools jar file from C  Program Files Java jre1 8 0 112 lib to C  Program Files Java jdk1 8 0 112 lib so that I have two tools jar files instead of one and problem disappeared

User · Answer

I had the same problem and  copying  C  Program Files Java jdk1 6 0 26 lib tools jar to C  Program Files Java jre6 lib ext  worked for me

User · Answer

I had similar issue and got solved by doing following     1  set JAVA HOME as C  Program Files  x86  Java jdk1 7 0    2  ANT HOME as F  ant apache-ant-1 8 4-bin apache-ant-1 8 4  3  add both to  path   in system variables

User · Answer

Don t spend too much time looking for tools jar  If you get an error like that  don t be upset    If you already have java JDK 1 5  go to your lib folder  and the tools jar should be available there  Copy and paste it in your ant bin folder  then try to use the command ant -version   You should see the expected result

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I had my JDK path  C  Program Files Java jdk1 7 0 79  in my JAVA HOME and also the JDK path bin in my PATH  But  still my ant was using the JRE instead of JDK   The issue was I had C  ProgramData Oracle Java javapathbefore my JDK path in PATH variable  I simply moved my JDK path before the oracle one and the issue solved

User · Answer

For me what s working  I downloaded an old version of Java 1 7  I actually set my JAVA HOME from C  program files X86 Java BUT after I installed the 1 7 version I had another Java in program files Java  And at this moment I found the tools jar here  Then I changed for this new path and it s working

User · Answer

A JRE doesn t have a tools jar  you need a JDK  Set your JAVA HOME and PATH variables so that they point to a JDK  not a JRE

User · Answer

tools jar comes with JDK  but what happens in your case it looks for it within  Java jre6  Change JAVA HOME env var to one of your JDK home

User · Answer

I had the same problem even after installing Java JDK and set JAVA HOME to    jdk1 6 0 45 bin folder    Ant is still trying to find tools jar in C  Program Files Java jre6 lib folder  I ve fixed it by adding JAVACMD environment variable and set path for it to java exe in the jdk folder  In my case it was C  Program Files Java jdk1 6 0 45 bin java exe

User · Answer

I have resolved tool jar file error recently  I am using eclipse oxygen ide  It works perfectly and easy  Repeat these steps on your system as   Download tool jar file according to your jre jdk version  Lets suppose tool jar file is 1 8 0 tool jar After donwload 1 8  0 tool jar file rename is as as tool jar Then go to your jdk installation folder Then go to lib folder open it And paste here  You will make this type path  E  jdk 8 lib tools jar

User · Answer

Step1 Check your jdk is installed  and variable path is setted  Step2 unistall your eclipes and reinstall it  other wise It will continue to be a problem

User · Answer

I had to copy C  Program Files Java jdk1 6 0 26 lib tools jar to C  Program Files Java jre6 lib ext  Thanks anyway

User · Answer

it has been solved with me in windows os by setting the JAVA HOME variable before running as follows   set JAVA HOME C  Program Files Java jdk1 8 0 111

User · Answer

I was also facing the same error  This was removed after setting Java Home path to C  Program Files Java jdk1 8 0 121  Please ensure bin is not included in the path and no slash is there after jdk1 8 0 121 after you have defined  JAVA HOME  bin in the system path variable

User · Answer

If you are in Linux you can solve this by installing java on the system   sudo apt-get install openjdk-7-jdk openjdk-7-jre

User · Answer

Please make sure that you are pointing to JDK and not a JRE  For example  you should set JAVA HOME as  C  Program Files java jdk1 6 0 26  and have  JAVA HOME  bin in your system path

User · Answer

Set your JAVA HOME environmental variable to point to C  Program Files Java jdk1 7 0 02

User · Answer

Install the Java SDK   Add a System Environment Variable called JAVA HOME with the value of JDK location  Go to Control Panel System and Security System  Advanced System Settings  Environment Variables  System Variables  New     Example  Variable Name JAVA HOME Variable Value  C  Program Files Java jdk1 7 0 21   Close reopen your CMD window so that the new variable takes effect before attempting to re-run the ant command

User · Answer

No  according to your directory structure  you have installed a JRE  not a JDK  There s a difference   C  Program Files Java jre6 lib                              It should be something like   C  Program Files Java jdk1 6 0 24

User · Answer

maybe you have updated the JREs in the OS  and the addition has added in the  path  of the environment variables an entry      Oracle jer  that overwrites your JAVA HOME  try to remove it from the  path  by leaving JAVA HOME

User · Answer

Yes  you ve downloaded and installed the Java Runtime Environment  JRE  instead of the Java Development Kit  JDK    The latter has the tools jar  java exe  javac exe  etc

User · Answer

This is the solution for Windows  in Computer   Advanced system settings   Advanced   Environment variables     add this in System variables

User · Answer

go to your jdk path where you installed your java  For e g In my PC JDK installed in the following path   C  Program Files Java jdk1 7 0 17     After go to the lib folder e g  C  Program Files Java jdk1 7 0 17 lib   in the lib directory there is tool jar file  Copy this file and past it in the lib forlder of jre7 directory for e g   C  Program Files Java jre7 lib

User · Answer

As many people mentioned  it looks like you are looking in your JRE instead of the JDK for the tools jar file   I would also like to mention that on recent versions of the JDK  there is no more tools jar file  I downloaded the most recent JDK as of today  JDK version 12  and I could not find any tools jar  I had to download JDK version 8  1 8 0  here https   www oracle com technetwork java javase downloads jdk8-downloads-2133151 html to get the tools jar file  I downloaded that version  took the tools jar file and put it into my recent version s lib folder

User · Answer

I have downloaded tools jar and after that I copied it into path in error message   C  Program Files Java jdk-11 0 1 bin   paste here tools jar  After that I have restarted Spring Tool Suit 4 and everything was working  When I was trying to fix that problem I have made new environmental variable  Control Panel   System   Advenced   Environmental variables   new  Name   JAVA HOME Value  C  Program Files Java jdk-11 0 1 But I do not know is it necessary

[java] Unable to locate tools.jar

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