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Questions tagged [redhat-openjdk]

For development issues encountered while using Red Hat's distribution of OpenJDK.

OpenJDK (Open Java Development Kit) is a free and open source implementation of the Java Platform, Standard Edition (Java SE). The upstream community project OpenJDK is currently sponsored and led by Oracle and is released under the GNU General Public License, version 2, with the Classpath Exception.

Click here for free development subscription which allows you to download Red Hat's implementation of OpenJDK for development use https://developers.redhat.com/downloads/

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Technical difference between AdoptOpenJDK and Red Hat OpenJDK for Windows

Red hat provides the Red Hat OpenJDK 8 for Windows for development use only (registration required). AdoptOpenJDK provides OpenJDK 8 builds for Windows (AdoptOpenJDK 8 Windows) without any restrictions. Is there any technical difference between the…
derkoe
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Installing OpenJDK 11 on CentOS using yum

I want to install OpenJDK 11 using yum. However when I check the OpenJDK manual, it says you can use yum to install only up to Java 8. However, for Java 9 onwards it says that you have to download a zip or tar…
Globe Admin
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Is JCE policy bundled with openjdk 8?

I am trying to package java-1.8.0-openjdk jre and jdk, i am unable to find jce policy for openjdk 8 Where can i find it ? Can anyone point me the link.
devops
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Have CentOS OpenJDK packages passed TCK compliance testing?

Red Hat provides OpenJDK binary distributions that have passed TCK compliance testing, as documented in their OpenJDK Life Cycle and Support Policy. The equivalent CentOS OpenJDK rpm packages carry the same version string, and appear to behave in…
Paul S
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How to check my server Diffie-Hellman MODP size (bits) and increase it?

Good day, I have a WAS liberty server in Linux Redhat, and I enable the only TLSv1.2. I type the following command to get the server info: openssl s_client -connect 10.7.5.65:9443 -msg Part of the result is as follow: No client certificate CA names…
Panadol Chong
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OpenJDK builds and javaws bin file

I understand that Java Web Start is deprecated and not present in Java SE 11 and later. I bumped into the Red Hat distribution of OpenJDK which says "OpenJDK 11 Windows installer includes an additional component - Web Start deployment protocol…
the_eraser
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How can I force Red Hat OpenJDK 8 to render fonts as clearly as AdoptOpenJDK and Oracle JDK on Windows?

Our users run our Java GUI app on their Windows desktops, and we're planning a switch from Oracle Java 8 to OpenJDK 8. But we've found that different OpenJDK builds are inconsistent in the quality of the font rendering, with Oracle and AdoptOpenJDK…
JKD
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Unable to install openJDK 8 in Red Hat

I am trying to install openJDK 8 in my machine using yum, as per this https://openjdk.java.net/install/ . But I can't see open openJDK 8 in yum repository. [root@test ~]# yum search jdk Loaded plugins: downloadonly, product-id, refresh-packagekit,…
Mahipal Reddy
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How to debug project.clj to find which dependency is breaking my project compilation

I have just updated my system from Java 8 to the OpenJDK Java 11 version. I have one project that won't compile and I get the following error: Java.lang.IllegalArgumentException: Must hint overloaded method: toArray,…
Michael Thurmond
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JDK flight recorder backport in RedHat OpenJDK 8

I would like to ask, if anybody knows date or more informations about JDK flight recorder backport in the RedHat OpenJDK 8 production release (for RHEL 7)? I've tried the last build (1.8.0_242-b08) that doesn't contain it yet, and based on this…
Miroslav Karkoška
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How can I install Redhat OpenJDK 11 on CentOS 7+?

As per the Oracle OpenJDK policy, there will not have any LTS support anymore, but Redhat OpenJDK will continue to have LTS support so far we have seen. Our current application was based on CentOS 7 and Oracle JDK-8 and wants to migrate some sort of…
Md. Hasan Basri
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JavaFX from RHEL

Previously I am developing applications with JavaFX in Oracle Java SE shipped by Red Hat but it seems it is no longer offered as in https://access.redhat.com/articles/3253281. However, it seems that the OpenJDK coming from rhel-7-server-rpms…
evantkh
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Certs and Redhat Openshift

In openshift we have hosted Spring boot based microservices. One of the microservice sends an email by connecting to a smtp server. There smtp server is part of the organization and it is not an external server. When the service tries to send an…
lr-pal
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Docker: Openjdk:14 RHEL based imaged, cannot install yum/wget/netstat

In my dockerfile, I need a maven builder (3.6 at least) working on a OpenJDK (J14 is required). FROM maven:3.6.3-openjdk-14 as builder The problem is simple: I need netstat command because it is used in several scripts. The OpenJDK official image…
Bugpirasi
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Why JVM crashes with seg fault?

We are seeing a JVM running on ignite cluster crashes with seg-fault, the error trace taking us to org.apache.ignite.internal.binary.BinaryFieldAccessor$DefaultFinalClassAccessor.write0 Below is full stack-trace of error. # # A fatal error has been…
tarunk
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