The following are the system requirements for installing the JDK and the JRE on macOS:

A Installing the Java Runtime Environment (JRE). The Oracle GoldenGate Director software and installer both rely on components in the Java Runtime Environment (JRE). In many cases, this environment already exists because it was installed when the system was configured. An “Edit JRE” window will open. You will now need to set the Javadoc location for. JRE system library. To set the Javadocs for. JRE System library: 1. Select a system library (.jar) 2. Click the button “Javadoc Location” 3. A “Javadoc For ” window will. Java/Mac FAQ: Where is JAVAHOME located on Mac OS X (macOS) systems? MacOS JDK location This has changed over time, but if you're using Mac OS X 10.9 or newer (now macOS ), your JDK/SDK JAVAHOME location for Java 8 will be something like this.

When you install the JDK, it also installs the JRE. However, the system will not replace the current JRE with a lower version. To determine the current JRE version installed on your system, see Determining the JRE Version Installed on macOS. To install an earlier version of.

• Any Intel-based computer running macOS.

• Administrator privileges.

  You cannot install Java for a single user. Installing the JDK and JRE on macOS is performed on a systemwide basis for all users. Administrator privileges are required to install the JDK and JRE on macOS.

• When you install the JDK, it also installs the JRE. However, the system will not replace the current JRE with a lower version.

  To determine the current JRE version installed on your system, see Determining the JRE Version Installed on macOS. To install an earlier version of the JRE, you must first uninstall the current version. See Uninstalling the JRE on macOS.

• When you install the JRE, you can install only one JRE on your system at a time. The system will not install a JRE that has an earlier version than the current version.

  To determine the current JRE version installed on your system, see Determining the JRE Version Installed on macOS. To install an earlier version of the JRE, you must first uninstall the current version. See Uninstalling the JRE on macOS.

  Note:

  Installing a JRE from Oracle will not update java -version symlinks or add java to your path. To do this, you must install the JDK.

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Unbound classpath container: JRE System Library (in test, OS X, tycho)[message #1817520] Mon, 25 November 2019 10:01 Alexandros Karypidis Messages: 135 Registered: March 2010 Hello, This is a bit of a weird problem: when I run 'mvn verify' on an OS X system, one of my plugin tests fails because the workspace created cannot locate the JDK. The test is a slightly complicated integration test, but the problem is quite simple: the JDT project created in the test workspace cannot resolve the JRE libraries and when I build my 'test project' in the 'test workspace' I have an assertion that verifies there are no problem markers, only there's 2 of them: one that says the classpath container for the JavaSE-1.8 execution environment is unbound and the other saying that the 'test project' cannot be built until the callpath issue is resolved. This happens only when building with maven and only on OS X. If I run the test from within the Eclipse workspace on OS X everything works fine. It is only when I run 'mvn verify' where tycho-surefire-plugin kicks in that the problem arises. Furthermore on Windows 10 I can run 'mvn verify' just fine. I've made sure my JAVA_HOME is pointing to the correct location using /usr/libexec/java_home (I have Oracle JDK 8 Update 231 on that laptop). It's really weird because maven itself uses that JDK compiler (if you run maven with a JRE it would fail saying it needs a JDK) so I know that the configuration is ok (the JDK is first in the PATH and the JAVA_HOME points to it). I'm actually a bit lost with regard to what to check. Any suggestions on whatever you think I could investigate are welcome. Quote: UPDATE: I've added a 'TimeUnite.MINUTES.sleep(2)' statement in the beginning of the first unit test. This allows me to interact with the instance that pops up, as it waits for the unit test thread to proceed. I try to create a new Java Project manually and see in the first page of the dialog the warning 'The default JRE could be detacted. To add a JRE manually go to the JREs preference page'. Clicking on the link and adding the JRE at '/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home' fixes the test workspace, so when the 2-minute time out elapses the test proceeds and completes successfuly. So indeed it is a case of the JRE not being detected... [Updated on: Mon, 25 November 2019 15:14]

Re: Unbound classpath container: JRE System Library (in test, OS X, tycho)[message #1817540 is a reply to message #1817520] Mon, 25 November 2019 15:19 Alexandros Karypidis Messages: 135 Registered: March 2010 According to the FAQ Find the JVM entry, Eclipse ignores JAVA_HOME and uses 'eclipse.ini' and the system path to identify the JRE. I've made sure to put '/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/bin' as the first entry in PATH but still the JRE is not detected.

Re: Unbound classpath container: JRE System Library (in test, OS X, tycho)[message #1817565 is a reply to message #1817540] Mon, 25 November 2019 23:27 Alexandros Karypidis Messages: 135 Registered: March 2010 It appears that the VM installation code explicitly ignores Mac OS X installations as can be seen in StandardVMType.detectInstallLocation(). It seems to me that macosx-specific feature fragments may be missing when I run the integration tests. Will be looking into that next...

Re: Unbound classpath container: JRE System Library (in test, OS X, tycho)[message #1817566 is a reply to message #1817565] Mon, 25 November 2019 23:43 Alexandros Karypidis Messages: 135 Registered: March 2010 Adding an explicit dependency on 'org.eclipse.jdt.launching.macosx' resolves this!

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