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Last updated on February 17th, 2018
The following pop up message is displayed randomly on a Macbook Pro: 'To use the java command line tool you need to install a JDK. Click 'More info…' to visit the Java Developer kit download website'.
The error is received because an installed application needs Java to run properly, but in newer versions of OS X, the Java support has been removed for security reasons.
Unable To Download Java For Installation Mac Os
This tutorial contains instructions to fix the following problem on MAC OS X: 'To use the 'java' command-line tool you need to install a JDK'
How to FIX: JAVA command line tools needs JDK (Mac OS X).
Step 1. Delete 'facebook.videochat.xxx.plist file
1. Using Finder click Go to Folder
2. At the search box type: ~/Library/LaunchAgents/
3. Right-click at the 'com.facebook.videochat.USERNAME.plist'* and select Move to Trash *
* Note: If you cannot find the 'com.facebook.videochat.USERNAME.plist' file then continue to the next step.
4. Then Empty Trash.
5.Restart you MAC and your problem should be gone. *
* Note: If the problems persists then continue to the next step.
Step 2. Download and install JAVA.
1. Download JAVA from the following website:
2. When the download is completed, open the .dmg file and install Java 6 runtime for MAC OS X.
3. When the installation is completed, restart your MAC.
That's it! Let me know if this guide has helped you by leaving your comment about your experience. Please like and share this guide to help others.
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Since OS X 10.7 Java is not (pre-)installed anymore, let’s fix that. As I’m writing this, Java 11.0.4 is the latest version and AdoptOpenJDK is one of the best places to find Prebuilt OpenJDK Binaries. Easy to follow details about how to install OpenJDK are available here.
However, the easiest way is to select OpenJDK 11 (LTS), the HotSpot JVM, and macOS x64, which will expose two option like these:
Clicking on “Install JDK installer”, will download the OpenJDK installer package, e.g. OpenJDK11U-jdk_x64_mac_hotspot_11.0.4_11.pkg, which when executed, will install into this location: /Library/Java/JavaVirtualMachines/adoptopenjdk-11.jdk
Almost done. After opening a terminal, the successful installation of the JDK can be confirmed like so:
… hopefully showing something like this:
JAVA_HOME is an important environment variable and it’s important to get it right. Here is a trick that allows me to keep the environment variable current, even after a Java Update was installed. In ~/.zshrc, I set the variable like so:
In previous macOS versions, this was done in ~/.bash_profile. Now it’s done.
Source Code
The source code of the Java Platform, Standard Edition 11 Reference Implementations binaries is available under the GPLv2 in a single zip file.
API Specification
Install Java Runtime Mac
The API Specification of the Java Platform, Standard Edition and Java Development Kit
can be found here: https://docs.oracle.com/en/java/javase/11/docs/api/
.