Qlik Talend Studio 2026-06 will move from Java 17 to Java 21

[Sonja_Bauernfeind]

To all Talend customers,

This is an advance notice that, to enhance both your security and experience, Java 21 will be required to launch Talend Studio starting with the 2026-06 release.

This change only concerns the Talend Studio desktop application. It has no impact on the Jobs and Services you build with it, which will continue being compliant with Java 17 runtime environments (and Java 8 for Big Data Jobs).

You have multiple options to make a smooth transition:

• The Talend Studio embedded upgrade mechanism (Feature Manager) will offer handling the JDK version upgrade
• Should you prefer, a new installer of Talend Studio 2026-06 with JDK 21 embedded will also be provided
• You will also be free to manually configure Talend Studio to start with JDK 21, provided you are on Talend Studio 2025-09 or higher

Additional details:

Along with this change, the June release will come with many additions from a Java version perspective:

• Talend Studio will allow building Jobs and Services for Java 21 runtimes, in addition to Java 17 runtimes. Java 17 will remain the default setup for runtimes for the time being
• Remote Engines, Cloud Engines, Dynamic Engines, Job Server, and Talend Runtime will support running Jobs and Services in Java 21, in addition to the Java versions they already support
• Talend Administration Center (TAC), Data Preparation (client-managed), Data Stewardship (client-managed), Talend SAP RFC Server, Talend Semantic Dictionary, and Talend Identity and Access Management will also support running with Java 21 in addition to Java 17

For further questions, please start a chat with us to contact Qlik Support and subscribe to the Support Blog for future updates.

Thank you for choosing Qlik,
Qlik Support

[lguevara]

Hi,

In my case after update an install java 21 (recomended) and configure <Talend-Studio-win-x86_64.ini> with plugin path java 21 works fine start talend since path installed.

But I have 2 questions more:
- the start icon talend studio in windows stay with vm 17 and need to change manually

- ¿Is necesary install again modules in components jobs with this java 21?

thanks

[JCLamoure]

Hello @lguevara 

I'm afraid that we can't do much besides updating manually this windows shortcut.

for the 2nd question, could you elaborate a bit ?

best,

[Abdelrhman_Mohamed]

Hello @lguevara ,

I hope you are doing well.

I had the same issue as you too, but I fixed it by changing the new java 21 path in the target path for the shortcut. All you need to do is in the same menu you are opening just replace the path of the new java version with the old one starting from the "-vm" part. In my case, I changed this part with this one:
-vm "C:\Program Files (x86)\Talend-Studio\studio\plugins\org.eclipse.justj.openjdk.hotspot.jre.full.stripped.win32.x86_64_21.0.10.v20260205-0638\jre\bin"

Hope this help.

Best,

Abdelrhman

[marksouzacosta]

Just documenting here my experience and how I solve the Incompatible JVM issue - with help of the other community members.

System: Windows 11 Pro

After installing the new R2026-06 Talend Studio shows the following error:

Resolution steps:

1. Change Talend-Studio-win-x86_64.ini

Filename: C:\Program Files (x86)\Talend-Studio\studio\Talend-Studio-win-x86_64.ini

Change the -vm parameter to:

-vm
plugins/org.eclipse.justj.openjdk.hotspot.jre.full.stripped.win32.x86_64_21.0.10.v20260205-0638/jre/bin
-vmargs
-Xms512m
-Xmx1536m
-Dfile.encoding=UTF-8
-XX:+UseG1GC
-XX:+UseStringDeduplication
-XX:MaxMetaspaceSize=512m
--add-modules=ALL-SYSTEM
-Dosgi.requiredJavaVersion=21
-Ddraw2d.enableAutoscale=false
-Dswt.autoScale.updateOnRuntime=false
--add-opens=java.base/java.lang=ALL-UNNAMED
--add-opens=java.base/java.util=ALL-UNNAMED
--add-opens=java.base/java.io=ALL-UNNAMED
--add-opens=java.base/java.util.stream=ALL-UNNAMED
--add-opens=java.base/java.util.regex=ALL-UNNAMED
--add-opens=java.base/java.lang.invoke=ALL-UNNAMED
--add-opens=java.base/java.lang.reflect=ALL-UNNAMED
--add-opens=java.base/java.net=ALL-UNNAMED
--add-opens=java.base/java.nio=ALL-UNNAMED
--add-opens=java.base/java.util.concurrent=ALL-UNNAMED
--add-opens=java.base/sun.nio.ch=ALL-UNNAMED
--add-opens=java.base/sun.nio.cs=ALL-UNNAMED
--add-opens=java.base/sun.security.action=ALL-UNNAMED
--add-opens=java.base/sun.security.pkcs=ALL-UNNAMED
--add-opens=java.base/sun.security.x509=ALL-UNNAMED
--add-opens=java.base/sun.util.calendar=ALL-UNNAMED
--add-opens=java.security.jgss/sun.security.krb5=ALL-UNNAMED
--add-opens=jdk.internal.jvmstat/sun.jvmstat.monitor=ALL-UNNAMED

Note: keep all your other parameters unchanged.

The full path of the new -vm parameter:

C:\Program Files (x86)\Talend-Studio\studio\plugins\org.eclipse.justj.openjdk.hotspot.jre.full.stripped.win32.x86_64_21.0.10.v20260205-0638\jre\bin

My previous -vm parameter - just for reference:

-vm
C:\Program Files (x86)\Talend-Studio\zulu17.48.15-ca-jdk17.0.10-win_x64\bin\server\jvm.dll

2. Change Talend Studio Target on Windows Taskbar

Original Target:

"C:\Program Files (x86)\Talend-Studio\studio\Talend-Studio-win-x86_64.exe" -vm "C:\Program Files (x86)\Talend-Studio\zulu17.48.15-ca-jdk17.0.10-win_x64\bin"

Change the Target to:

"C:\Program Files (x86)\Talend-Studio\studio\Talend-Studio-win-x86_64.exe" -vm "C:\Program Files (x86)\Talend-Studio\studio\plugins\org.eclipse.justj.openjdk.hotspot.jre.full.stripped.win32.x86_64_21.0.10.v20260205-0638\jre\bin"

To change the Target:

1. Right click on Talend Studio Taskbar Icon
2. Select Properties
3. Change the Target property

Regards,

Mark Costa

[lguevara]

Hi,
If a have yet talend studio R2026-06 with java 17, and I use remote engine to debug since talend studio desktop.
I have this error :

Execution failed :org.talend.remote.commons.exception.ClientServerException: org.talend.remote.commons.exception.ClientServerException: javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[org.talend.remote.commons.exception.ClientServerException: javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target]

I Import the CA Certificate into Java Keystore but have the same error.

Its necesary to upgrade to 202606 with java 21 or any way to solve this with 202605 version and java 17?

thanks