I'm not able to install Eclipse for Java EE on my working machine. Eclipse for Java is already installed. I get with the installer also with the advanced mode, an error in the installation. I assume that this is due to some limitations of my working machine. Admin rights are used. Do you have any idea?
Thank you!
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I am trying to run Eclipse WebSphere Developer Tools with a local WebSphere 8.0.x installation. I also installed IBM's WebSphere Dev server and am having trouble successfully starting each server.
This is because the instructions say that the eclipse.ini should be updated to point to the IBM/WAS/AppServer/jre so that they match up. If you do not do this, the server will start but will spin at 100% because Eclipse can't get confirmation it started correctly. Eclipse warns you about not having the Eclipse JRE match the server JRE version.
I am using Eclipse Oxygen, which is Java 1.8. I installed WebSphere Developer Tools 8.0.x. WAS 8 is java 1.6, as such the server JRE/JDK is 1.6. Why would they make this tool for Eclipse Mars, Neon, Oxygen if you can't ever complete their instructions and make the Eclipse JRE align with the server JRE? Is there a way to get around this? I am wondering what I missed.
Eclipse Oxygen only supports Java 8 and above. You can get the JDK 8 from WebSphere Application Server v9 to run WDT in Oxygen. If you can point me to the instructions that you were following, we can review (and update if needed) to make sure the instructions are clear.
my java isn't working anymore, since upgrading to MacOS X El Capitan.
If i type "java -version" in the Terminal i will receive a popup telling me, that i have to install java from the Website.
After downloading and installing the jre8_60 the problem still persists.
Anyone have a clue to solve this problem?
So according to: https://oliverdowling.com.au/2015/10/09/oracles-jre-8-on-mac-os-x-el-capitan/
the .dmg for mac is not working.
But with the guide on this site it is possible to install the JRE8_60 with the .tar.gz version of the java download.
It's best to install the JDK (Java Development Kit) rather than the JRE (Java Runtime Environment) when programming in Java.
The difference?
JRE: Java Runtime Environment. It is basically the Java Virtual Machine where your Java programs run on. It also includes browser plugins for Applet execution.
JDK: Java Development Kit. It's the full featured Software Development Kit for Java, including JRE, and the compilers and tools (like JavaDoc, and Java Debugger) to create and compile programs.
I have a working Java SWING-based desktop application, and I'm being asked if it can be run on the Microsoft Surface Pro or Pro 2. As I understand it, these are using stock Windows 8/8.1 and will be able to run any Windows app normally, is this correct?
Are there any caveats or special considerations when running my app on these devices?
Edit: If it matters, the JRE would be distributed together with the application, so installing Java isnt an issue.
... will be able to run any Windows app normally, is this correct?
You will be able to run Java programs, but only in Desktop mode after installing the JRE. Java 7 Update 10 added official support. See Java on Windows 8 FAQ.
By default, Java is not installed on the Surface Pro. There is no java.exe or javac.exe when attempting to run from the command line. You have to go to Oracle and fetch it.
I was able to install the JRE on my Surface Pro. The package was installed in C:\Program Files (x86)\Java\jre7\bin. After the install, java.exe -version worked from the command line (after fixing PATH). The install also included an IE plugin, and it appears to have worked with IE 10 from the tablet. I was also able to install the x64 JRE. I did not try to install the JDK.
There may be something offered on the Windows App Store, too. But I don't use the store, so I don't know.
I am using Ubuntu operating system with Java version 1.7.0_15 (Iced Tea). I am unable to access the Java web start application. Every time I start it I get message that Java web start requesting JRE 1.7 and then says that it is unable to install so manually install and then it failed to install the JRE. I do not know what to do.
Here is my java version
Here is few important information
1. I have validated JNLP file using JaNeLa and there is no error.
2. Ubuntu is opening Application with JRE 1.6 perfectly fine.
3. On Windows every version is running perfectly fine.
4. I have tried with deployment tool kit but the always redirect me to the Sun page to download the linux version of JRE and even after installing that it again redirect me to the download page.
Please let me know if I can provide more information.
So finally after working whole day I have found the problem with my system. I am not sure why my question got -3 but it was valid question. The problem was with the Java plugin in the Firefox browser. Although I have installed jdk 7 on my machine but the firefox plugin was still pointing to the jre6 so giving error. So I have to manually create the link for the jre 7 in my machine
ln -s /usr/lib/jvm/<<location of jre 7>>/jre/lib/i386/libnpjp2.so ~/.mozzilla/plugins
Then I restarted the browser and make sure that I have the latest plugin and it started working, So it was not the java installed but it was firefox plugin.
Just FYI, oracle has stopped it support for java plugin for linux due to some licensing so you have to install it manually. Thanks
You can check the installed plug-in by typing 'about:plugins' in your address bar of firefox
IMHO OpenJDK 7 is not a JRE 7.
You may uninstall it before install oracle jre. Otherwise you have to use sudo update-alternatives to define the default java version
See https://askubuntu.com/questions/67909/how-do-i-install-oracle-jdk-6
I tried to install JavaEE on my computer. I already have JDK 7 and Netbeans 7.1.2.
But when I try to install it, it shows this error..
application needs version 1.6 or higher of java(TM)2 Runtime
environment.....
The JDK installer for Windows doesn't do its job entirely right. Some registry keys for the JRE are missing. The Java EE installer is relying on them. You basically need to install JRE as well which you can get from http://java.com. You don't need to uninstall the JDK. Just install JRE over it, it'll set the proper registry keys and your Java EE installer will then continue.
Note that the Java EE pack basically contains the Glassfish server and optionally also bundles the Netbeans IDE. You can alternatively also just download and install Glassfish separately from http://glassfish.java.net. Or if you happen to have installed Glassfish already or already have another server like Tomcat or JBoss AS, then you don't need the Java EE pack at all.
See also:
What exactly is Java EE?