On MAC OS X, after installing JRE 7 from Oracle using the.dmg download, on opening Eclipse, it still pointed back to my old JRE 6. After numerous google searches for the problem, and getting here, in desperation I clicked on 'Search' in Eclipse - Preferences - Installed JREs and voila - it picked up JRE. I am looking for the path the the JRE file on Mac OS X 10.6.8. Or is there no such file? Is JRE just slang for an idea or concept? Java Runtime Environment is a real thing. May 02, 2019.
Oct 26, 2017 Download Java for OS X 2017-001 Java for macOS 2017-001 installs the legacy Java 6 runtime for macOS 10.13 High Sierra, macOS 10.12 Sierra, macOS 10.11 El Capitan, macOS 10.10 Yosemite, macOS 10.9 Mavericks, macOS 10.8 Mountain Lion, and macOS 10.7 Lion.
Home » Newcomers » Newcomers » Unable to install Eclipse Oxygen on macOS Sierra due to JRE 6 dependency(Java 8 JRE is not a suitable prerequisite for the Eclipse installer)
Unable to install Eclipse Oxygen on macOS Sierra due to JRE 6 dependency[message #1769484]
Tue, 01 August 2017 03:16
David Antliff Messages: 10 Registered: April 2015
I'm trying to install the latest Eclipse Oxygen release (eclipse-inst-mac64.tar.gz downloaded today) onto macOS 10.12.5 (Sierra). After decompressing the tarball, I have a 'Eclipse Installer.app' that when I open gives me this error: 'To open 'Eclipse-inst' you need to install the legacy Java SE 6 runtime.' However, according to this page, I should only need JRE 8, not JRE 6. I have downloaded JRE SE 8u144 from Oracle and installed it, however I still get this error message. Is it actually correct? Do I really need two different JREs installed to install Eclipse? Why doesn't the installer work with JRE 8? EDIT: I have confirmed via Safari and oracle.com that v8u144 is 'active' on my system. EDIT: I see on StackOverflow that the problem might be solved by installing JDK 8 rather than JRE. However I specifically do not with to do this (I will be using Eclipse with CDT, not for Java development) and if it truly is a requirement then I suggest two changes: 1. fix the installer so it works with a modern version of the Java RE. 2. update the docs so that it specifies the JDK as a minimum requirement, rather than the JRE.
[Updated on: Tue, 01 August 2017 03:24]
Re: Unable to install Eclipse Oxygen on macOS Sierra due to JRE 6 dependency[message #1769498 is a reply to message #1769484]
Tue, 01 August 2017 05:03
Ed Merks Messages: 31501 Registered: July 2009
Unfortunately each OS has its own peculiarities. The message about needing Java 6 comes from the Mac OS itself, and it's a bogus message. This basic problem affects not just the installer application, but any other Eclipse application you will try to install using it, because the installer application is in fact just an Eclipse application and will suffer from all the same problems that it has. So yes, as far as I understand it, to run any Eclipse application on a Mac, you will need to install a JDK, best a JDK 8 at this point. Not that it's helpful to you, but for Windows, the installer is distributed as a native executable that does smarter checking of the available JREs and JDKs on the system so it does a better job detecting problems you will have when you actually try to launch the application, linking you to a page like this: http://download.eclipse.org/oomph/jre/?vm=2 filtered to the version that's needed when the right JRE/JDK is not available. Certainly there isn't much useful to explain this Mac-specific peculiarity at https://wiki.eclipse.org/Eclipse/Installation nor in https://www.eclipse.org/downloads/eclipse-packages/?show_instructions=TRUE but I wonder if that's the documentation you think would be best to update, or were you looking elsewhere?
Ed Merks Professional Support: https://www.macromodeling.com/
Re: Unable to install Eclipse Oxygen on macOS Sierra due to JRE 6 dependency[message #1769731 is a reply to message #1769498]
Thu, 03 August 2017 01:46
David Antliff Messages: 10 Registered: April 2015
Thanks for the response. I'll install the JDK. The documentation I mentioned was linked in my first post: 'A Java 8 JRE/JDK is required to run all Oxygen packages based on Eclipse 4.7' - perhaps it should include a note to say 'JDK' for macOS?
Re: Unable to install Eclipse Oxygen on macOS Sierra due to JRE 6 dependency[message #1769738 is a reply to message #1769731]
Thu, 03 August 2017 05:15
Ed Merks Messages: 31501 Registered: July 2009
Sorry, I should have noticed that. I've made a number of changes to the wiki to make the Mac issues explicit.
Ed Merks Professional Support: https://www.macromodeling.com/
Re: Unable to install Eclipse Oxygen on macOS Sierra due to JRE 6 dependency[message #1795119 is a reply to message #1769738]
Sat, 15 September 2018 08:06
john smith Messages: 1 Registered: September 2018 Location: usa
Hey, I have faced the same situation whereas already I'm trying to install the latest Eclipse Oxygen release, but I was not able to install this because I haven't get the latest update of IOS version then I decide to visit the apple support site but iPhone Support expert team don't provide me any solution their executive told me that they don't have any idea about Eclipse Oxygen.
Re: Unable to install Eclipse Oxygen on macOS Sierra due to JRE 6 dependency[message #1795132 is a reply to message #1795119]
Sun, 16 September 2018 04:36
Ed Merks Messages: 31501 Registered: July 2009
On the Mac you must install a full JDK. Did you actually install a Java 8 (o higher) JDK (not just a JRE)?
Ed Merks Professional Support: https://www.macromodeling.com/
Re: Unable to install Eclipse Oxygen on macOS Sierra due to JRE 6 dependency[message #1810167 is a reply to message #1795132]
Fri, 02 August 2019 07:08
Randy Bonnette Messages: 5 Registered: May 2019
Quote:
Unfortunately each OS has its own peculiarities. The message about needing Java 6 comes from the Mac OS itself, and it's a bogus message. This basic problem affects not just the installer application, but any other Eclipse application you will try to install using it, because the installer application is in fact just an Eclipse application and will suffer from all the same problems that it has. So yes, as far as I understand it, to runessay cheapor any Eclipse application on a Mac, you will need to install a JDK, best a JDK 8 at this point. Not that it's helpful to you, but for Windows, the installer is distributed as a native executable that does smarter checking of the available JREs and JDKs on the system so it does a better job detecting problems you will have when you actually try to launch the application, linking you to a page like this: http://download.eclipse.org/oomph/jre/?vm=2 filtered to the version that's needed when the right JRE/JDK is not available. Certainly there isn't much useful to explain this Mac-specific peculiarity at https://wiki.eclipse.org/Eclipse/Installation nor in https://www.eclipse.org/downloads/eclipse-packages/?show_instructions=TRUE but I wonder if that's the documentation you think would be best to update, or were you looking elsewhere?
Hi Ed, I successfully installed Oracle JDK 12 on my Mac - after so many attempts (my antivirus blocked it all the time until I disabled it). I've upgraded to Eclipse 4.11 on Windows (on my older PC), however, it didn't work properly with Java 12 - Java 12 enhancements were not recognized and any Java 12 code was marked as an error.
[Updated on: Fri, 02 August 2019 07:11]
Re: Unable to install Eclipse Oxygen on macOS Sierra due to JRE 6 dependency[message #1810175 is a reply to message #1810167]
Fri, 02 August 2019 09:28
Ed Merks Messages: 31501 Registered: July 2009
Did you properly configure the JRE used by the installation in Preferences -> Java -> Installed JREs to specify the Java 12 JDK/JRE? And is Preferences -> Java -> Compiler configured to Java 12?
Ed Merks Professional Support: https://www.macromodeling.com/
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With macOS 10.15, Apple introduced new application security checks, which are used by Gatekeeper to verify the contents of distributed software. When you install or run software for the first time, Gatekeeper verifies that the software has been notarized. See Notarizing Your App Before Distribution.
JDK 14 is the first release that complies with the new macOS 10.15 hardening and notarization requirements. If you want to install and test earlier versions of the JDK or JRE on macOS 10.15, this document explains some expect warnings and how to proceed.
As of the time when this article was written you can still install and run non-notarized software on macOS 10.15 systems by modifying your security preferences. The following steps show you how to install a non-notarized JDK or JRE.
Note: These steps use the JDK 8u231 macOS installer as an example. These steps apply equally to all other JDK and JRE releases.
Installing the JDK Using a .dmg File
Double-click on the .dmg file to begin the installation. The system verifies the .dmg file, then opens a Finder window with the icon of an open box (package) and the name of the .pkg file.
Double-click the package icon to start the installation app. A window appears with a status bar with text similar to the following:
Then, a window appears with text similar to the following:
'JDK 8 Update 231.pkg' can't be opened because Apple cannot check it for malicious software.
This software needs to be updated. Contact the developer for more information.
Click OK.
Open System Preferences, click Security & Privacy, then click the General tab. In the section Allow apps downloaded from:, the following text appears:
'JDK 8 Update 231.pkg' was blocked from use because it is not from an identified developer.
Click the Open Anyway button.
A window appears with text similar to the following:
'JDK 8 Update 231.pkg' can't be opened because Apple cannot check it for malicious software.
This software needs to be updated. Contact the developer for more information.
Click the Open button.
A window appears with the following text:
Installer is trying to install new software. Enter your password to allow this.
Enter your user name and password, then click the Install Software button.
Installing the JDK from a File Archive
You don't have to modify your security preferences if you install the JDK from a .tar.gz file archive, in particular, a prebuilt OpenJDK package. However, the system may warn you the first time you run a Java command-line tool.
Running a Java Command-Line Tool for the First Time
When you run a command-line tool for the first time (such as java), depending on which app (such as Safari or Firefox) you used to download the installer, a window may appear with text similar to the following:
'jdk1.8.0_231.jdk' is an app created by Safari. Are you sure you want to open it?
Click the Open button.
Depending on the folder in which you installed the JDK or JRE, another window may also appear with text similar to the following:
Download Java 8 For Mac
'java' would like to access files in your Downloads folder.
