Unifi Unable To Find Java Home

If necessary, go to the Java website to download and install the correct version. It is to be used by other software that require Java to know where to find it. when warning window goes away, so does the black screen. Especially for. Unifi controller 2. jar to use the 32-bit java. This page was last edited on 12 June 2019, at 03:22. I have downloaded a file from internet that ends with. 0_18" Java(TM) SE Runtime Environment. A Installing the Java Runtime Environment (JRE). Application was working fine on port 8080 on the jboss version jboss-5. I'm attempting to install JAVA JRE 8. To set this environment variable, first determine where Java is installed. When I started it up for first time it asked me to point to a java. Here's a quick guide to show the use of "java -version" command to check the current JDK version that installed on your computer. Latest update on August 12, 2019 at 08:24 AM by Ratnendra Ashok. Quick tutorial for beginners how to easily install Oracle Java JDK8 or JDK9 in Ubuntu 16. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Chat all day and night with 600 minutes talk time to all mobile and fixed lines nationwide. If you are unable to install/upgrade to the latest Java version, and you trust the unsigned Java applet to be safe, you can workaround this problem by adding an "exception site" or temporarily lowering the security level of the currently installed Java:. 0_26 instead. The fourth option is “Devices” and you can see the Unifi devices. I have a sqldeveloper intallation on windows 7. Via the UniFi Network Controller. read through the document until you find the statement #jdkhome = "path/to/jdk" and just below that add the following statement below that one: jdkhome = "C:\\Program Files\\Java\\jdk. Unable to launch the application - Java error, 3. For example on Windows ® enter set JAVA_HOME=path_to_Java_install. 4: On my device no Java was installed with 6. 2-b01, mixed mode). 8, which is our current stable release. Programmers, who wrote the servlet, may not be a good graphic designer, while a graphic designer does not understand Java programming. The Maven project provides a simple ZIP file containing a precompiled version of Maven for your convenience. 30 Day Inpatient Rehab Site, amenities, ages, administration, plus rehab home's health all play a role what sort of property functions on a financial basis. UniFi WiFi BaseStationXG Provides Exceptional Service in High-Density Concert. com) to work, you need to use x64 Java only (so choose Windows x64 Offline). > Did not find variable JAVA_HOME in Java cache or process environment. MCL-11 – Pressing play in launcher, and quickly closing it leaves java process hanging and throws an exception; MCL-90 – Unable to play 1. 4 and later of the Blackboard Collaborate Building Block. 1) Last updated on FEBRUARY 28, 2019. How to set the path in Windows 7. Jenkins is a popular open source CI (Continuous Integration) tool which is widely used for project development, deployment, and automation. do i need to? I don't see a manger folder anywhere. From the system command prompt, set the system environment variable, JAVA_HOME, to point to your JDK installation. xml-- it will automatically be recognized and activated. Here's a quick guide to show the use of "java -version" command to check the current JDK version that installed on your computer. Minecraft’s 1. If you would like to use Outlook, you can switch to a different Office 365 home subscription. So, you got a pop-up message saying "Windows cannot find javaw. have no access to it. 1 Installing Connector/J from a Binary Distribution 4. Greetings,OS: Windows Server 2016Ubiquiti Unifi controller installed. Worked perfectly two days ago. 0_04-b20) Java HotSpot(TM) 64-Bit Server VM (build 23. The Firefox Add-ons website usually has the most up to date version of each add-on. Oracle has been constantly tightening their licensing, making it harder and harder to just run Java. To verify your Java environment, type java -version at the shell prompt and you should see something like this:. If you fix the dirname issue I think the rest of your problems are going to go away. Root directory of the Java Runtime Environment (JRE) used by the JDK development tools. I untared it in the opt folder Thanks, Charles. XMLHTTP in VBScript. Click Launch to open the UniFi Controller remotely. Google offers one free virtual machine on Google Cloud Platform. The plugin attempts to locate the javadoc executable [1] by first using the java. WebLogic Startup fails with Unable to obtain lock on Server may already be running. So, here you go 🙂 The Downloads/Installs. Free tech guides, latest news and reviews all designed to help you with your technical issues!. while creating archive: Unable to find javadoc command: The environment variable JAVA_HOME is not correctly set. Ubiquiti provides a variety of high-end wireless networking products that utilize our innovative and ground-breaking wireless technology. Wifimax, 1 year, 3 months ago. Please set JAVA_HOME environment variable. You will find that when the LARGE_POOL is increased up to 100%, ORA-04031 will typically be eliminated. I found that uninstalling the JRE and JDK and reinstalling them cleared this up. Samsung Developers site has been optimized to Internet Explorer 8 and above. The second option is for statistics. Then you just ran into a bug which seems to occur most with 5. If you've already got a Let's Encrypt certificate on your server, simply set the UNIFI_HOSTNAME, verify the correct UNIFI_DIR for your system, set LE_MODE to yes, and run the script. I tried the method. Reset This button serves two functions for the UniFi AP-PRO: • Restart Press and release the Reset button quickly. That is where Bitbucket comes in. I have some smart products at home and one of the things I wanted to do is read out the connected WiFi devices. Apache POI is your Java Excel solution (for Excel 97-2008). Once in the Dashboard, click on the Devices icon in the left column. This article walks you through the steps to fix java. 0_77\lib\tools. home property it searches. Please note JAVA_HOME should point to a JDK directory not a JRE one. Could not find JAVA_HOME app setting. Start learning JavaScript with our interactive simulator for free. Hi, I don't understand why on Linux and Mac OS X Eclipse has no problems with JAVA_HOME, but on Windows, JAVA_HOME points to the JRE instead of. exe" I dont know if this is relevant but i tried to find my java version by holding windows key + R and it cant find Java -version please respond asap thank you. 0 at time of release). jar" and others. The plugin attempts to locate the javadoc executable [1] by first using the java. 1 Installing Connector/J from a Binary Distribution 4. Please set JAVA_HOME environment variable. The currently defined JAVA_HOME (/usr/local/jdk) refers to a location where Java could not be found. UniFi and nanoHD Powers USA's Oldest Horse Show. Either fix the JAVA_HOME variable or remove it from the environment so that the system PATH will be searched. If you have Java installed on your Windows computer, you can find it using these suggestions: 1. Worked perfectly two days ago. Mac users may need to disable rootless SIP protection in OS X before being able to successfully install Java, but you can enable it again after it has been installed. For many extensions, there are similar extensions that provide the same functionality. The JDK 8 Early Access Program has concluded. Oracle Application Server components generate log files containing messages that record all types of events, including startup and shutdown information, errors, warning messages, access information on HTTP requests, and additional information. If you fix the dirname issue I think the rest of your problems are going to go away. Basic troubleshooting tips for Java issues If you are having problems related to Java, the following tips should help you getting things working. How to set environment variable JAVA_HOME that will be saved on exit? [duplicate] Ask Question Asked 7 years, 3 months ago. You will find that when the LARGE_POOL is increased up to 100%, ORA-04031 will typically be eliminated. Think twice before you set up your system to start jar files automatically by just clicking – this would work with all downloaded jar files then. Programming is the new vogue and a vogue which can make you earn wonders and at the same time make you utilize the capabilities of your brain to the fullest. How To Encrypt a Password Using ODI Every major version of ODI – 12. I downloaded Lightstreamer_7_0_3_20190315. No command line required, everything is done in the GCP Console and it takes 15 minutes total and that includes transferring your current sites to the cloud. exe path in sql developer. This problem occurs because of an issue with Java Version 6 Update 22 and Java Version 6 Update 23 that was exposed by recent changes in the Internet Explorer 9 rendering engine. Putting this all together, a basic command-line invocation under Linux might look something like:. When on the wifi network I can load up the cameras easily on the unifi protect app on mobile. Applies to: Oracle Fusion Middleware - Version 12. I believe someone earlier in this thread said to do something similar, but the variable name was different. If you are compiling MATLAB code, verify that MATLAB is reading the correct value of JAVA_HOME. This Quick Start Guide is designed to guide you through installation and also includes the warranty terms. If you HAVE to use Java 6 or 7, you'll have to grab an older version of SQL Developer, sorry. 0_17 which still had the bug but the bug was fixed in 1. So, you got a pop-up message saying "Windows cannot find javaw. If you would like to use Outlook, you can switch to a different Office 365 home subscription. The new version of Java 8 Update 231 is available for download. and centos installed on VMware. On some Linux systems, you may also need to have the JAVA_HOME environment exported before attempting the install, particularly if you installed Java from a tarball. no JAVA is required for the. Use below commands. For instance: JAVA_OPTS+MANAGED_MASTER =-XX:+PrintGCDetails. class among the files. How to find the share name and path to a network printer. Right: My Files on a Galaxy S10 Plus. Home; Overview Charles won't start with "Failed to find Java VM" Charles uses Java so you need to have a Java Runtime Environment installed. Finally, execute java -version and make sure Java is installed properly as shown below. 20 to something that would match my local network, and also set a route so it can then communicate out. The caveats are here: SQL Developer 3. If you choose to use a custom Java location, modify the host configuration to ensure the JDK can be found. I've installed the Java & MongoDB(!) software needed to run it. This page was last edited on 12 June 2019, at 03:22. 0_04 in the 64-bit version on the Solaris SPARC or AMD 64-bit environments. If you fix the dirname issue I think the rest of your problems are going to go away. In Windows 10 press Windows key + Pause Key, This will open the System Settings window. However, you can also specify the location by setting the AWS_CREDENTIAL_PROFILES_FILE environment variable with the full path to the credentials file. Many programs written using Java use the JAVA_HOME environment variable to determine the Java installation location. RCU 12c Fails With "Cannot Find the File javaw" - Unable to Find Java (Doc ID 1920314. If so, it may be helpful to gather Java-related messages from your computer’s Java Console. 0 Android studio 2. Find the file manager app. The Java plugin refuses to run unsigned applets, starting with version 1. bash_profile and. Uninstalling Java and JRE from the Mac is a little more complicated than installing it, as there is no dedicated. First things first, make sure you have the latest version of java installed. The little Java icon in the task tray is gone and it won’t pop up again for a few hours. Jenkins unable to find mvn command. If this is the first time, you are trying to install Java on your Windows 10 computer, then follow these steps to disable the proxy settings. Game content and materials are trademarks and copyrights of their respective publisher and its licensors. As of the Java Edition 1. x and do not go any further than that as one would usually do for example by extending into the \\bin folder DONT DO THAT. C:\>java -version java version "1. Drag the saved PDF from the computer desktop to the reader. I have a problem with unable to connect with database in primavera P6 R8. To set this environment variable, we will first need to find out where Java is installed. So I decided to try to update my maven repository. exe Make sure your spelling is correct and try again. The plugin attempts to locate the javadoc executable [1] by first using the java. CodePerfect 372,136 views. The latest news directly from EBS Development since 2006. People love lighting up all of the bubbles in the UniFi Controller - this video walks through how to set up a complete UniFi network infrastructure from start to finish. Seamless Integration A single instance of the UniFi Controller running in the cloud can manage multiple UniFi sites within a centralized interface. Please set JAVA_HOME environment variable. If you’ve downloaded the 64 bit windows version with the JDK bundled, you’re all set. To get this, you have to use BufferedReader object. Operation Center. Many Mac users don’t need Java on their computer, but if you happen to have Java installed and want to remove it from a Mac then you can uninstall Java and JRE with a little effort. No thanks, I preffer Cancel button. A few weeks ago added several more Unifi access pointswent to fire up the. Subscribe for more: ----- https. One of the strengths of Java is the huge libraries of code available to you. If the 64-bit version of Java is installed, the command usage information displays. bash_profile and. All java versions first numbers is 1 and actual major version numbers change according to release which is current 8. 0_22 and followed the above procedure which solved the. > Unable to find a javac compiler; com. is it probably my house's wireless is not compatible with Windows 8 Pro?. When composing a New Message, click on Attach File and a dropdown list appears of recent items, but only for about 1 second. Note: If double-clicking the jar file does not result in the file being run or executed, it is likely the jar file is not an executable file and cannot be run in this manner. If you are following my previous post about installing Java 6 64bit on AIX 6. If you would prefer to set the JAVA_HOME (or JRE_HOME) variable via the command line: Open Command Prompt (make sure you Run as administrator so you're able to add a system environment variable). If not, you’ll need to tell SQL Developer where it can find it’s Java master, AKA the Java Virtual Machine. % setenv JAVA_HOME `java_home` or, alternately: % set JAVA_HOME=`java_home` The same method works for Bourne-type shells. Java and the Mac OS X Terminal. OLE2 files include most Microsoft Office files such as XLS, DOC, and PPT as well as MFC serialization API based file formats. 1, the easiest solution is to reboot your router by simply turning it off and then back on again. exe, or actually javaw. Java installed, but Scottrade Streaming Quotes not opening - posted in All Other Applications: Hello all and thank you for the interest in my problem. Home; Overview Charles won't start with "Failed to find Java VM" Charles uses Java so you need to have a Java Runtime Environment installed. "Unable to configure java worker. " again, the black screen stays up with what I assume is DOS language. In this tutorial you will learn how to reset the java. How to find appPackage and appActivity for APK file? The best and the easiest way to find the appPackage and appActvity is from the Appium itself. eg, If am the root , then my Home directory will be / if say am just a user logging into the terminal then my home dir would change, so accordingly i would like to know how to find it out. C:\mywork> java HelloWorld This runs the Java interpreter. Click Launch to open the UniFi Controller remotely. CodePerfect 372,136 views. Re: unable to install informatica on windows 10 nheinze Jul 12, 2016 1:56 PM ( in response to Jenny00u182nobpp8whgnw1d8 ) This is no authoritative statement, but as of my knowledge for client tools Windows 10 can be used by now by installing and running in compatibility mode for Windows 7. The public JRE installed with the 32-bit JRE is not registered. sql developer : fix "unable to launch the java virtual machine" on Windows 10 Java Project Tutorial. Set up the association for *. The JAVA_HOME variable is used by applications to find the Java Development Kit installation. The operating system for Ubiquiti's airMAX ® ac products, airOS ® 7 provides powerful features, including airMAX ac protocol support, real-time RF analytics, and an all-new design for enhanced usability. Hosting any kind of server from home means you’re exposing your home network to the world. If the problem persists, contact your administrator. : in help > about > installation details > configuration check if it's actually using the Java 8 version you pointed at. AROWS - Unable to digitally sign orders Post by msp9349 » Wed Jan 06, 2016 6:28 am I am currently running OS X El Capitan and everything seems to be working fine except I cannot sign my AROWS orders digitally on the AROWS website. Hi, I try to install Knowage 6. If you believe you have the JDK installed properly, but the installer seems to fail to recognize it, you can try to run the installer with the --javahome option and specify the path to the JDK you want the installer to use, e. Well I think I pointed it to the wrong one because now when I go to start it up I get the message "unable to find java virtual machine" How do I change it to point to a different java. This tutorial shows you how to set a JAVA_HOME system variable on Windows 10. 12 update, Minecraft requires Java 8 or greater. Hi, I am unable to connect to RDP in windows 10 home edition. If you have the. Common uses. Check the security settings for your instance to see if it's whitelisted to only certain IP addresses. Seamless Integration A single instance of the UniFi Controller running in the cloud can manage multiple UniFi sites within a centralized interface. If you are unsure than see this article to set PATH for Java in Windows and Linux. Laugh, cry, and be thrilled with unifi TV Ultimate Pack via unifi TV Media Box and unifi playTV app. Main is not on the classpath. Not sure if the setting is on by default, but for our AWS Ubiquiti instance we have it set to only whitelist specific IP addresses. With Modbro you can watch Rio Olympics 2016 live on your TV, Smartphone, or Tablet. How to install UniFi controller by Milosz Galazka on February 8, 2018 and tagged with Debian , Stretch , Software recommendation , Ubiquiti. have no access to it. When the user has those keys but doesn't want to use them to authenticate, it's possible to use the -noKeyAuth argument to skip being prompted for the key's password. ” When I started working with Flutter a couple of months ago to develop iOS and Android apps from one code base, I started keeping notes about how to do things with Flutter and Dart (the programming language. 04 or Linux Mint 18 via PPA. Server had had. From the Settings screen on the webui for Db Connect I was not able to change the task server port as after the start it tries to restart the task server & it was failing. Cable Feed Plug If your Ethernet cable feeds along the mounting surface, remove the Cable Feed Plug. Some older websites still rely on Java, and so if you want to use those websites you will need to have Java installed. In Unifi it looks like this: The first options show the Dashboard, showing the most important information in this view. By default UniFi installs javaw. Right: My Files on a Galaxy S10 Plus. So in the last few years, Apple stopped shipping the JRE. Can I monitor Ubiquiti UniFi network devices with PRTG? unless it is unable to authenticate or contact the UniFi controller. --JvmOptions-Xrs. But I cannot get it to detect. tomcat , wondoze , Unable to find a javac compiler;. Java Tutorials This page list down all java tutorials published on HowToDoInJava. Smart Home Halloween Coloring Pages You Can Find Online. Can I monitor Ubiquiti UniFi network devices with PRTG? unless it is unable to authenticate or contact the UniFi controller. Just like to thanks for this post. list so that apt-get install knows what packages to look for. By default, it's in the bottom-left corner of the. by Magesh Maruthamuthu · Published : September 2, You just export JAVA_HOME, JAR_HOME & PATH that’s it. If I use the Windows 'IP Camera Viewer' program inside the home network running on a connected Windows 7 computer, there is no camera found at the indicated IP address. I believe someone earlier in this thread said to do something similar, but the variable name was different. UniFi and nanoHD Powers USA's Oldest Horse Show. x and do not go any further than that as one would usually do for example by extending into the \\bin folder DONT DO THAT. On Medium, smart voices and original ideas take center stage - with no ads in sight. Perhaps JAVA_HOME does not point to the JDK JAVA_HOME is set correctly in the environment System variables and does point to the JDK home rather than the jre I CAN run the JBoss apps server and get correctly compiled JSP's by running through the MyEclipse. It's up to you to set up your prerequisites and environment to run Maven on Windows. Eclipse Tomcat Plugin | Eclipse Plugins, Bundles and Products - Eclipse Marketplace. This script will make setting up a UniFi Controller on GCP a breeze and it includes all the goodies. While many programming environments will allow you to compile and run a program within the environment, you can also compile and run using Command Prompt. Because Java Web Start opens the search application, when the JNLP files are associated incorrectly, the search application cannot open. Are you using an IDE to run the tests, or NUnit on the command line? mark. Ashish Mundhra 18 Feb 2013 In the past we have talked about some online services that use the Java Runtime Environment (JRE) to run the. During this process when you adopt the UniFi wireless AP into the controller software you will be asked to assign a username and password – to be clear, this isn’t asking you what the current username and password is, it’s asking you to assign new ones (that you. I attempted to download it straight off Oracle's website, and i have the folder now in my /. If you've already got a Let's Encrypt certificate on your server, simply set the UNIFI_HOSTNAME, verify the correct UNIFI_DIR for your system, set LE_MODE to yes, and run the script. Worked perfectly two days ago. The code examples here give you everything you need to read and write files right away, and if you're in a hurry, you can use them without needing to understanding in detail how they work. If the file is valid, it should open with no problems. UniFi and nanoHD Powers USA's Oldest Horse Show. Open your command prompt in Wndows or terminal in *nix. How to set the path in Windows 7. completely lost and have no idea on what to do. This options works across L3 boundaries and allows easy central management of Unifi devices from a single controller. The Oracle GoldenGate Director software and installer both rely on components in the Java Runtime Environment (JRE). The system, if not updated, can be exploited in the wild. If Java doesn’t run properly, make sure the browser plugin is enabled in its control panel. So in the last few years, Apple stopped shipping the JRE. Whenever the CLI tries to to connect to the Jenkins server, it offers the before mentioned SSH keys. Type "echo echo "JAVA_HOME=' " followed by the installation path. Installing the latest Java update will ensure that Minecraft will continue to run safely and efficiently. When a Java program is being compiled, the compiler creates a list of all the identifiers in use. If you are running on 64 bit Windows operating system e. All beginners will first want to open browser and to automate it. If the unsigned applet is coming from one the websites specified in the whitelist then its execution will be permitted. This will be performed in three ways: Installing Java using the Ubuntu Open JDK binaries, installing Java via PPA and. If that doesn't work, a lot of users find success by modifying a configuration file in the path, C:\Program Files\Cisco Systems\Cisco Network Assistant\startup\startup. Unable to find a javac compiler; com. xml-- it will automatically be recognized and activated. I believe someone earlier in this thread said to do something similar, but the variable name was different. Importing site certificate into Java Runtime certificate store Submitted by gunnar on Tue, 12/02/2008 - 09:31 When your Java program attempts to connect to a server that has an invalid or self signed certificate, such as an application server in a development environment, you may get the following exception:. 1 Upgrading to MySQL Connector/J 8. Welcome to Apache Maven. In case you have an OS other than Linux, you can install a Virtualbox software in it and have Linux inside the Virtualbox. Home > Help and Support unable to print a label during the UPS Create a Shipment process? What are my options if I am unable to print a label during the UPS. • Restore to Factory Default Settings Press and hold the. Installation as a Windows service offers these advantages: Reduced risk of shutting down Confluence by accident (If you start Confluence manually, a console window opens and there is a risk of someone accidentally shutting down Confluence by closing the window). Applies to: Oracle Fusion Middleware - Version 12. I believe I did the following pre-requisites in correct manner:. On Medium, smart voices and original ideas take center stage - with no ads in sight. If you would prefer to set the JAVA_HOME (or JRE_HOME) variable via the command line: Open Command Prompt (make sure you Run as administrator so you're able to add a system environment variable). xx and then to 4. In the previous post, we had discussed about the installation of Java, and configuration of Eclipse with selenium WebDriver. However, you can also specify the location by setting the AWS_CREDENTIAL_PROFILES_FILE environment variable with the full path to the credentials file. – December 11, 2018 – DigitalOcean, the cloud for developing modern apps, today announced that its managed Kubernetes service is now available with production-ready. Advanced System Settings. Hello, I am using a Dell XPS 12 on Windows 8 Pro and I am unable to connect to my house's wifi. I will list them briefly here, followed by examples and further explanation below. Use the update-alternatives command: sudo update-alternatives --config java. We provide IP address tools that allow users to perform an Internet Speed Test, IP address lookup, proxy detection, IP Whois Lookup, and more. Resolution In the remote agent machine, download and install a supported JDK version and make sure that the Windows environment variables are pointing to it. xml file located at Program Files (x86)\ibm\cognos\c10\bin and edit to force the BI service to use java at it's actual installed location. 1 platform, next you have to set JAVA_HOME and PATH variables. 0_51" for me) Hope that others don't run in circles over this. 51 and there is nothing you will be able to do to resolve that issue other than switching to a different LMS. while creating archive: Unable to find javadoc command: The environment variable JAVA_HOME is not correctly set. This page was last edited on 12 June 2019, at 03:22. I have no way of verifying this any more, but on Mac OS X 10. OLE2 files include most Microsoft Office files such as XLS, DOC, and PPT as well as MFC serialization API based file formats. > git rev-list directory at java. "Java_Home" as the name and paste the directory of the jdk for the value ( ie "C:\Program Files\Java\jdk1. Unable to Load SDK Information Android SDK Manager in Visual Studio 2017. is it probably my house's wireless is not compatible with Windows 8 Pro?. First you need to know the installation path for the Java Development Kit. exe" I dont know if this is relevant but i tried to find my java version by holding windows key + R and it cant find Java -version please respond asap thank you. Change which version of Java Minecraft uses by Martin Brinkmann on March 11, 2015 in Games - 7 comments I installed Minecraft recently on a computer so that my eleven year old nephew could play the game on it (offline only of course). First download jdk-8u112-linux-x64. Re: java2ws ERROR unable to find cxf-manifest. Oracle Application Server components generate log files containing messages that record all types of events, including startup and shutdown information, errors, warning messages, access information on HTTP requests, and additional information. Java in VS Code. Keytool is nice free certificate tool provided by Oracle as part of the Java software. The main known usage of Ant is the build of Java applications. Apache NetBeans is free and open source and is governed by the Apache Software Foundation. It's an archive, not an installer. The point of setting the environment variable is to let programs know in which directory executables like javac can be found. Not sure if the setting is on by default, but for our AWS Ubiquiti instance we have it set to only whitelist specific IP addresses. command=" line to the new path to your java. To do so I need to set up a VLAN for the guest side. I bought 3 Ubiquiti UniFi access points (at enormous cost) to try to deliver reliable wifi to all points of my oddly shaped home (long and thin with some thick brick walls that mask all radio signals). Installing the latest Java update will ensure that Minecraft will continue to run safely and efficiently. These large buildings generate in Roofed Forests, and. If Java WAS installed you might want to uninstall it so your machine has a clean platform to work with. The video above demonstrates one way to install Spark (PySpark) on Ubuntu. Some older websites still rely on Java, and so if you want to use those websites you will need to have Java installed.