% /usr/libexec/java_home -v 1.8.0_06 -exec javac -versionįor more information, see the java_home(1) man page. To run a different version of Java, either specify the full path, or use the java_home tool: Java HotSpot(TM) 64-Bit Server VM (build 23.2-b04, mixed mode) Java(TM) SE Runtime Environment (build 1.8.0_06-ea-b13) If the installed version is 8u6, you will see a string that includes the text 1.8.0_06. You can determine which version of the JDK is the default by typing java -version in a Terminal window. It is possible for the version of the JRE to be different than the version of the JDK. When launching a Java application through the command line, the system uses the default JDK. There can be multiple JDKs installed on a system, as many as you wish. See "Note for Users of OS X that Include Apple Java 6 Plug-in". If you have not yet installed Apple's Java OS X 2012-006 update, then you are still using a version of Apple Java 6 that includes the plug-in and the Java Preferences app. They do not impact each other in any way, though obviously you should not open a project in both instances of NetBeans at the same time.Determining the Default Version of the JDK You can safely install both NetBeans 8.2 and NetBeans 10.0, and even run both instances concurrently.On NetBeans 8.2 you cannot use any JDK version > 8.The corresponding JDK is also added as a Java Platform within NetBeans (using Tools > Java Platforms > Add Platform.).Clone backup your data before changing your Java. The corresponding JDK is installed on your machine. Java is frequently used as a backend for many crossplatform stand alone applications, so if you depend on third party applications, make sure the version you need works with all of them before changing the version on your computer.With NetBeans 10.0, individual projects can be configured to use JDK 8, 9, 10 or 11, provided that:.Since you already have JDK 11 installed, NetBeans should work immediately.Download and install Apache NetBeans 10.0 which supports JDK 11.Your issue should be resolved.Īlternatively, if you would prefer to use JDK 11, you could take a completely different approach: Save your change to nf and restart Netbeans.In my NetBeans 8.2 installation my entry looks like this netbeans_jdkhome="C:\Java\jdk1.8.0_181", though obviously your path will be different.The property's value should be the path to your JDK 1.8 installation.In the unlikely event that the property does not exist in the file at all, just insert it at the end of the file.If line is commented by starting with the # character then delete that character.Therefore locate the line containing the text netbeans_jdkhome. One of the properties it might specify is the path to the default JDK to be used via property netbeans_jdkhome.It is a text file containing name/value property pairs.Locate file nf within the etc directory under the NetBeans installation directory.Once JDK 1.8 is installed, update the file nf:.Alternatively, you can download Oracle JDK 1.8.This answer describes how to do that for openjdk 1.8 on High Sierra.Download and install JDK 1.8 if it is not already on your machine:.Then hold Shift and click on the Mail icon to open it in Safe Mode. There are two steps involved in getting NetBeans 8.2 to work: The first thing to try, if you encounter this problem, is first close Mail completely. Setting up a local web server on macOS 10.13 'High Sierra' Setting up a local web server on macOS 10.14 Mojave Setting up a local web server on macOS 10.
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