Missing tools.jar when launching STS application

Question

I have the latest STS4. I am using installed java-1.8 JDK not embedded as the execution environment. My project just runs fine without any issue.

Ho

Answer 1

Just remove this line from variable "Path"

"C:\Program Files (x86)\Common Files\Oracle\Java\javapath" 

System Properties > Advanced > Environment Variables > Path > Edit > Reboot

Worked for me

Answer 2

By downloading the tool file and paste it in the jre\lib path. but make sure you should rename the pasted file as "tools.jar".

step 1 download the tool file. download link http://www.java2s.com/Code/Jar/t/Downloadtools160jar.htm

step 2 extract the zip file.

step 3 you should rename the included .jar file as "tools".

step 4 then copy the renamed tools.jar file and paste in the C:\Program Files\Java\jre8\lib\ path.

then restart the STS ide.

Answer 3

I have STS4 so I have modified SpringToolSuite4.ini

I changed from:

[...]
--launcher.defaultAction
openFile
-vmargs
-Dosgi.requiredJavaVersion=1.8
[...]

to exactly this

[...]
--launcher.defaultAction
openFile
-vm
C:\Program Files\Java\jdk1.8.0_152\bin\javaw.exe
-vmargs
-Dosgi.requiredJavaVersion=1.8
[...]

And the message dissapeared

Answer 4

For me, I had to do two things to make it work:

1. Remove vmargs:
   • vmargs
   • Dosgi.requiredJavaVersion=1.8
2. Setting the JDK:
   • vm
     C:\Program Files\Java\jdk1.8.0_131\bin

Answer 5

• I have fixed this from Window->preferences->Java->Installed JREs . Then add the jdk bin path, uncheck other related jre paths

Answer 6

I solved this same problem by modifying the file "eclipse.ini". First I tried to solve it by modifying the file SpringToolSuite4.ini, but nothing happened, because I previusly had installed the eclipse ide, and the change in SpringToolSuite4.ini didn't work. then I modified the file eclipse.ini; and it worked.

The changes that I did in eclipse.ini are detailed below:

To check with what Java version (JRE or JDK) Eclipse is running, do the following:

• Open the menu item Help > About Eclipse. (On the Mac, it’s in the Eclipse-menu, not the Help-menu)
• Click on Installation Details.
• Switch to the tab Configuration
• Search for a line that starts with -vm. The line following it shows which Java binary is used.

Depending on the name and location of the used Java binary one can figure out if a JRE or a JDK is used:

• If the path contains “jre” (e.g. as in C:\Program Files\Java\jre6\bin\client\jvm.dll) it is a JRE
• If the path contains “jdk” (e.g. as in C:\Program Files\Java\jdk1.6.0_31\bin\javaw.exe) it is a JDK.

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)*

source: https://matsim.org/docs/devguide/eclipse/jdk