Re: Java Jre Jdk 11
Harriet Wehrenberg
2. JRE (Java Runtime Environment) is an installation package that provides an environment to only run(not develop) the java program(or application)onto your machine. JRE is only used by those who only want to run Java programs that are end-users of your system.
JVM becomes an instance of JRE at the runtime of a Java program. It is widely known as a runtime interpreter.JVM largely helps in the abstraction of inner implementation from the programmers who make use of libraries for their programs from JDK.
Installing Eclipse is relatively easy, but does involve a few steps and software from at least two different sources. Eclipse is a Java-based application and, as such, requires a Java Runtime Environment or Java Development Kit (JRE or JDK) in order to run.
Regardless of your operating system, you will need to install some Java virtual machine (JVM). You may either install a Java Runtime Environment (JRE), or a Java Development Kit (JDK), depending on what you want to do with Eclipse. If you intend to use Eclipse for Java development, then you should install a JDK. If you aren't planning to use Eclipse for Java development and want to save some disk space, install a JRE.
A Java 17 or newer JRE/JDK is required, LTS release are preferred to run all Eclipse 2023-06 packages based on Eclipse 4.28, with certain packages choosing to provide one by default. The Installer now also includes a JRE--consider using the Installer. Please see 5 Steps to Install Eclipse.
A Java 17 or newer JRE/JDK is required, LTS release are preferred to run all Eclipse 2023-03 packages based on Eclipse 4.27, with certain packages choosing to provide one by default. The Installer now also includes a JRE--consider using the Installer. Please see 5 Steps to Install Eclipse.
A Java 17 or newer JRE/JDK is required, LTS release are preferred to run all Eclipse 2022-12 packages based on Eclipse 4.26, with certain packages choosing to provide one by default. The Installer now also includes a JRE--consider using the Installer. Please see 5 Steps to Install Eclipse.
A Java 17 or newer JRE/JDK is required, LTS release are preferred to run all Eclipse 2022-09 packages based on Eclipse 4.25, with certain packages choosing to provide one by default. The Installer now also includes a JRE--consider using the Installer. Please see 5 Steps to Install Eclipse.
A Java 11 or newer JRE/JDK is required, LTS release are preferred to run all Eclipse 2022-06 packages based on Eclipse 4.24, with certain packages choosing to provide one by default. The Installer now also includes a JRE--consider using the Installer. Please see 5 Steps to Install Eclipse.
A Java 11 or newer JRE/JDK is required, LTS release are preferred to run all Eclipse 2022-03 packages based on Eclipse 4.23, with certain packages choosing to provide one by default. The Installer now also includes a JRE--consider using the Installer. Please see 5 Steps to Install Eclipse.
There are several package choices. Note that you can install the features from any package into any other package. If you are, for example, planning to do mostly Java development and some C/C++ development, you should download the Eclipse IDE for Java Developers and then add the C/C++ development tools via the "Help > Install New Software..." menu option.
The download will be delivered as a compressed (i.e. a ".zip", or ".tar.gz") file. Decompress this file into the directory of your choice (e.g. "c:\eclipse" on Windows) and ensure you have full Read and Execute permissions. You can optionally create a shortcut of the executable file ("eclipse.exe" on Windows, or "eclipse" on Linux).
Note that there is a known problem with the built-in decompression utility on all current versions of Windows. We recommend that you use a more robust decompression utility such as the open source 7zip when decompressing an Eclipse download. Some people report success when initially decompressing Eclipse into a root directory (e.g. c:\) and then moving it to a more appropriate home (e.g. c:\Program Files\Eclipse)
It is strongly recommended to configure Eclipse with the specific JVM that you want. See the instructions at Eclipse.iniThis is a very important step to be sure that Eclipse is using the JVM you intend and can't be influenced by any other software that might alter your system.The JVM used to launch Eclipse has no affect on whether it can compile Java sources for other Java language versions.
Use the Help > Install new software... menu option to add Kepler features to your Eclipse installation (you can, for example, use this option to add C/C++ development support). Additionally, you can tap into a vast collection of extensions provided by the Eclipse community and ecosystem via the Eclipse Marketplace Client (Help > Eclipse Marketplace). Note that not all Eclipse packages contain the Eclipse Marketplace Client.
If you've "installed" Eclipse but are having trouble getting it to run, the most likely cause is that you have not correctly specified the JVM for it to run under. You may need to edit the eclipse.ini file.
Another common mistake on Microsoft Windows is a mismatch between the "bittedness" of Eclipse and the JVM/JDK. This is the most frequent cause of an Error 13. 64-bit Eclipse requires a 64-bit JVM, and 32-bit Eclipse requires 32-bit JVM--you can not mix-and-match between 32-bit and 64-bit, so make sure the version of Eclipse you installed matches the JVM/JDK that you're using to run it (and make sure you're using eclipse.ini to specify the exact JVM used to run Eclipse, described above).
As a simple test, open a Command Prompt window, move to the directory that is pointed to by the -vm argument in your eclipse.ini, and run the intended java.exe with the -d32 switch to test if it supports 32-bit, or -d64 to test for 64-bit support. It's often simplest to download a version of Eclipse that will work with whatever Java you already have installed.
On more recent versions of the Mac, if you don't have a full JDK of an appropriately high version installed, the OS produces this bogus message. Installing any JRE will not eliminate this problem. A full JDK needs to be installed on the Mac.
Eclipse downloads are not password protected. This is a known problem with the built-in decompression utility on all current versions of Windows. We recommend that you either download the installer or use a more robust decompression utility such as the open source 7zip when decompressing an Eclipse download. Some people report success when initially decompressing Eclipse into a root directory (e.g. c:\) and then moving it to a more appropriate home (e.g. c:\Program Files\Eclipse)
Hi. They haven't had any conflicts before. What could be the reason? I need these packages to work with electronic keys in the "pfx" format. Here is what pacman -Qi tells me about those packages:
Name : jre-openjdk
Version : 21.u35-3
Required By : jdk-openjdk xdman
Optional For : brltty libbluray libjpeg-turbo libjxl libreoffice-still
for me jdk-openjdk and jre-openjdk seems to be in conflict
I can install them individually with pacman -S but it seems like both of them cant work together.
Either one of them has to removed.
None of the solutions removed one or both of the packages that are now in conflict. I could force removal of one or both, but it seems a bit rough. I do use java to compile a package (using ant) that I like to test under Arch, because I think it gives me an idea of if my software will run on the latest version of what's coming.
Is that correct? I have minimal experience with manually removing packages under Arch, since pacman is very good and I've only rarely had to do things manually. I want to be sure before I go ahead with it. Can you confirm that the command I just posted is what I should do?
And everyone who at any point issued "pacman -Sy" (even if the update was then aborted) without an "u" has to do "pacman -Su" afterwards to not run into partial udpates.
Eg. setone's approch only works because of a previously failed "-Sy", otherwise the older local database wouldn't be aware of the conflict.
Hi, Splunk does not ship with a JRE or JDK. My understanding is that the jars have recently been included to support multiple functions, Hadoop being one of the main functions, however without a JRE they cannot be run using an out of the box installation. As a second reason why there isn't one included - Splunk can't include a JRE as that would violate the license terms of all of the JRE/JDK providers that are supported.
Splunk does NOT ship with .jar files and it does not ship with a JRE. Where are you finding them? My guess is they came with an app installed separately. For example, Splunk DB Connect includes a few JARs, but also requires separate installation of a JDK (not a JRE).
The core Splunk Enterprise functionality does not use OpenJDK but included the jar to support DFS. If you do not use DFS, the Splunk Enterprise application does not use or load OpenJDK, and the jar does not pose a security risk to your instance.
Splunk Enterprise removed OpenJDK in 8.1.0 and later. See for more info. However, updating from older versions does not remove it. If you do not use DFS or do not plan to use DFS, regardless of your Splunk version, feel free to delete the file folder in SPLUNK_HOME/bin/jars or SPLUNK_HOME/bin/jars/vendors/java.
The jars files in SPLUNK_HOME/etc/apps/splunk_archiver/java-bin/jars propagates from SPLUNK_HOME/bin/jars. In the background and on running the command archivebuckets forcerun=1, splunkd copies all jar files from /bin/jars to splunk_archiver. However, splunk_archiver does not use OpenJDK and the jar does not pose a threat to your instance. Deleting the file from the main folder and restarting Splunk should delete it from splunk_archiver. Running archivebuckets forcerun=1 forces the operation.
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