I ma trying to add JDK 11 with eclipse Neon, but it gives error- Target is not a jdk root
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We have a product that is running fine with JBoss 4.2.2/java 7.
We are now moving to JDK 11. simply added java 11 in the classpath and tried starting the server.
Encountered below error
OpenJDK 64-Bit Server VM warning: Ignoring option MaxPermSize; support was removed in 8.0
-Djava.endorsed.dirs=C:\PathBuilder\GE\EMEA\vp\jboss\lib\endorsed is not supported. Endorsed standards and standalone APIs in modular form
will be supported via the concept of upgradeable modules.
removed below configurations from run.bat and started the server again
-XX:MaxPermSize=128m
"-Djava.endorsed.dirs=%JBOSS_ENDORSED_DIRS%"
now getting below error and which is
interrupting the ear deployment Caused by:
java.lang.ClassNotFoundException: No ClassLoaders found for:
org.omg.CORBA.Object
Is Java 4.2.2 compatible with JDK 11 or we need to update JBoss to 7.2 or latest versions?
can someone help with this or provide related links?
JBoss 4.2 is a very old and outdated version and it only tested with JDK 1.5 and 1.6 version. If you are upgrading your JDK to 11 then you should update the JBoss to 7.3 version which is the latest available GA release from Red Hat.
You can download the jdk files of older versions like jdk6 and then replace JAVA path in the jboss run file from "set JAVA=%JAVA_HOME%\bin\java" to
"set JAVA=C:\Users\jdk1.6.0_45\bin\java"
Of course it's better to upgrade to a higher JBoss version... But in case that's not possible, you can avoid the ClassNotFoundException for org.omg.CORBA.Object by placing rt.jar from Java 8 in your JBoss-libs folder.
With this configuration you can run older JBoss versions with Java 11.
I need to add my installed Java 11 version to the project settings, because of this error (Error:java: invalid source release: 11).
When i go to project structure -> Project settings -> Project there it just shows Java 1.8.
When i try to add "java-11-openjdk-amd64" it fails with the reason "The selected directory points to a JRE, not a JDK.".
java -version
openjdk version "11.0.4" 2019-07-16
OpenJDK Runtime Environment AdoptOpenJDK (build 11.0.4+11)
OpenJDK 64-Bit Server VM AdoptOpenJDK (build 11.0.4+11, mixed mode)
The java application is available in the Java Runtime Environment (JRE). The fact that java is available in version 11 does not necessarily mean that the Java Development Kit (JDK) is also installed for version 11. However, IntelliJ needs the JDK which includes tools like the compiler javac.
In order to use Java 11 in IntelliJ, you need to install the Java 11 JDK.
For example on Ubuntu you can do that by executing:
sudo apt install openjdk-11-jdk
I downloaded and installed jdk 11 and am now trying to install netbeans 8.2. But i get an error which states "JAVA SE was not found on this computer.Make sure JDK is properly installed and run installer again. You can specify valid JDK location using --javahome installer argument."
I created a JAVA_HOME variable and set the value to "C:\Program Files\Java\jdk-11.0.1\bin" and set the same value for PATH variable as well.
How do i fix this?
You face a couple of issues:
NetBeans 8.2 requires JDK 8, and it will not work with any version of Java > 8.
NetBeans does not yet support JDK 11, though the release of a new version which does (NetBeans 10) is imminent.
The easiest approach would be to remove JDK 11 (unless you need it for other reasons apart from NetBeans), install Java 8 then reinstall NetBeans 8.2. It used to be possible to download NetBeans 8.2 bundled with Java 8, but if you try that now Oracle will just redirect you to the Apache NetBeans 9.0 web site.
There is a newer release of NetBeans than 8.2, Apache NetBeans 9.0. While it supports Java 9 and Java 10, it also does not support Java 11.
Updated to reflect that NetBeans 10 was released on December 27, 2018:
If you really want to use Java 11 with NetBeans you can download the latest Jenkins build of the beta version of NetBeans 10 at your own risk.
If you want to use Java 11 with NetBeans then download NetBeans 10.0. The download is a zip file and it works on all platforms.
Find netbeans.conf file in C:\Program Files\NetBeans 8.1 RC\etc.
In that atlas you'll find the netbeans_jdkhome. Set it accordingly.
You can specify the JDK to use by installing from the command line. So install a JDK 8 (e.g. Azul Zulu Open JDK 8) and then launch the netbeans installer:
netbeans-8.2-javaee-windows.exe --javahome "c:\Program Files\Zulu\zulu-8"
Once the installation starts, you will be asked which JDK to use for the IDE; make sure to choose your JDK 8 instead of the JDK 11. I have used this to install NetBeans 8.2RC successfully on Windows 10.
Can't compile a java 9 project in IntelliJ IDEA with module-info.
Create a project
Add module
Create a class with with a main (without module-info.java it runs)
Add Module-info.java
Run Main Fails
Configuration
Module-info
module httpexample {
}
Error
Error:(1, 1) java: file should be on source path, or on patch path for module
Intellij Version
IntelliJ IDEA 2017.1.2
Build #IU-171.4249.39, built on April 25, 2017
JRE: 1.8.0_112-release-736-b16 x86_64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Mac OS X 10.11.1
It appears to be a new issue caused by Java 9 update 166, I've reported it in YouTrack, please follow for updates:
IDEA-172212 Compile Error under JDK9-167
I am using IntelliJ EAP 2017.2 build 1909.2 and this is not an issue anymore
I have installed IntelliJ 2017.2 EAP and JDK 9 build 169 and opened my module system projects and it works fine, now my system info is:
IntelliJ IDEA 2017.2 EAP
Build #IU-172.2103.15, built on May 12, 2017
IntelliJ IDEA EAP User
Expiration date: June 11, 2017
JRE: 1.8.0_152-release-845-b3 x86_64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Mac OS X 10.12.4
I have my ANT configured to use a 1.6 JDK, my ENV variables JRE_HOME and JDK home both point to JDK6.
If I modify the JDK 6 folder name in my File explorer then my ANT build fails, cannot find JDK, so I know for sure it is using the correct JDK. However the generated clases are always compiled against java 1.7. Why i this? (My generated classes will only run on a 1.7 jre, I get version error if i run on a 1.6 JRE) All my project/module settings are pointing to 1.6 jdk.
Looks like not all of your Module/Project settings point to JDK 1.7 or you are using in-process javac option in Settings | Compiler while running IDEA under JDK 1.7.
Also check additional javac command line options, it should not contain options like -source 1.7 -target 1.7.