Or $ cd /Library/Java/JavaVirtualMachines $ sudo rm -rf /Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk
If you decide to remove a JDK version, just simply delete its installation folder. export JAVA_HOME=`/usr/libexec/java_home -v 1.8` Java HotSpot(TM) 64-Bit Server VM (build 25.121-b13, mixed mode)Īppending following line to your ~/.profile file will switch system's JDK to 1.8 version. Java(TM) SE Runtime Environment (build 1.8.0_121-b13) On the Desktop, right-click My Computer and select Properties. Click OK and click Apply to apply the changes. Using java -version or javac -version to show the JDK version used by system. In the System variables section, click New (or User variables for single user setting) Set JAVAHOME as the Variable name and the path to the JDK installation as the Variable value and click OK.
$ cd /Library/Java/JavaVirtualMachinesģ How to check which JDK version is currently used by Mac OS Quote Macs terminal searches will appear on launchpad. Third, check if it is installed on the Mac.
Library/Java/JavaVirtualMachines/jdk1.8.0_121.jdk/Contents/HomeĪbove java_home -v command has already told you where JDKs were installed. JDK MacOS, Terminal: /usr/libexec/javahome : /Library/Java/JavaVirtualMachines/jdk1.8.040.jdk/Contents/Home . Go directly to the JDK installation package directly (Not recommended, if there is no way, you can use) address(I use 8.0 version) Second, install JDK.
Then follow the installation instructions.
Output after executing above command may be similar with following text, which means there was two versions of JDK installed, 1.8.0_121 and 1.7.0_79. We recomend downloading Eclipse IDE for Java EE Developers for Windows or Mac OS X.
Click 'Java SE.' Click the 'Download' button next to 'JDK 8 with NetBeans.' Select 'Accept License Agreement' and then click the download link for 'Mac OS X' in the top section.
The root directory of the JDK software installation. The java_home -v command will list all JDKs already installed in your Mac OS. Once youre on the Downloads page, youll need to navigate to the installer files: Click the 'Java' option. In macOS, the JDK installation path is /Library/Java/JavaVirtualMachines/jdk-10. Public class extends on how to uninstall JDK or Java SE in Mac OS X.ġ How to see JDK versions already installed Compiled from URLClassLoader.java (version 1.5 : 49.0, super bit) (Since the Java VM is handled by Apple, I have no idea where this source is.)Ĭan you please help me figure out why basic debugging is not working on the Mac? Open the Terminal app and execute the following command to view the Java home path: echo JAVAHOME. You can attach the source by clicking Attach Source below. Steps to Fix JDK is Missing Error on Mac for NetBeans. The JAR file /System/Library/Frameworks/amework/Versions/1.6.0/Classes/classes.jar has no source attachment. Instructions on how to get started are in this link that I found quite easily with Google: How to install JDK source on Mac OS/X. To obtain source to the Mac OS/X JDK you need to be a member of Apple’s developer program and obtain and install the source from them. Scroll down and click on 'System Preferences.' 3. Click on the Apple logo in the top-left of your menu bar. When trying to debug a simple Web application (literally created by the wizard and no added code) on the Mac using the internal MyEclipse Tomcat, I get the following error: The inability to debug classes for which you don’t have source is not unexpected. How to check the Java version on your Mac using System Preferences.