I installed Aptana Studio 3 on my MAC which I updated to the Newest OS Catalina. That is what outdated all my adobe applications and Dreamweaver was a favourite program. Installing Aptana Studio 3 I can't open it because it says I need to instal Legacy Java SE Runtime 6. But I can't install that because Catalina has a higher version of Java that is already installed. So I can't open Aptana Studio 3.
Any suggestions?
Steps to install Java 6 on Catalina
Copy the following text to the Script Editor Document:
set theDMG to choose file with prompt "Please select javaforosx.dmg:" of type {"dmg"}
do shell script "hdiutil mount " & quoted form of POSIX path of theDMG
do shell script "pkgutil --expand /Volumes/Java\\ for\\ macOS\\ 2017-001/JavaForOSX.pkg ~/tmp"
do shell script "hdiutil unmount /Volumes/Java\\ for\\ macOS\\ 2017-001/"
do shell script "sed -i '' 's/return false/return true/g' ~/tmp/Distribution"
do shell script "pkgutil --flatten ~/tmp ~/Desktop/ModifiedJava6Install.pkg"
do shell script "rm -rf ~/tmp"
display dialog "Modified ModifiedJava6Install.pkg saved on desktop" buttons {"Ok"}
Select Script > Compile from the menu, or select the "Hammer" button to ensure the above copy and pasted code compiles.
This should work to enable adding legacy Java onto the Catalina Mac OS device
TLDR:
Get JavaForOSX.dmg file from https://support.apple.com/kb/DL1572?locale=en_US
Run below 7-commands in Terminal:
hdiutil mount ~/Downloads/JavaForOSX.dmg
mkdir -p ~/Downloads/tmp/
pkgutil --expand "/Volumes/Java for macOS 2017-001/JavaForOSX.pkg" ~/Downloads/tmp/OSXJavaSE6/
hdiutil unmount "/Volumes/Java for macOS 2017-001/"
sed -i '' 's/return false/return true/g' ~/Downloads/tmp/OSXJavaSE6/Distribution
pkgutil --flatten ~/Downloads/tmp/OSXJavaSE6/ ~/Downloads/tmp/JavaSE6.pkg
rm -r ~/Downloads/tmp/OSXJavaSE6
Run/double-click on "JavaSE6.pkg" file inside ~/Downloads/tmp/ folder.
End-of-TLDR
BEGIN:
"LEGACY JAVA" is older version of Java SE JRE/JDK, etc.
https://OpenJDK.Java.net/ site (it is free for any Commercial usage & also free for any Personal usage & you're free to include JRE/JDK with your App, etc ) , use OpenJDK when a java-based App needs (latest) Java or Legacy-Java (not below Legacy-Java 6)."JavaForOSX.dmg" (en_US) file, 51.1MB, md5:5bc4ef2d2115f8b35bc6c0bd792477d5, sha1:10687ebc3d0965bd0fcbad600ae48ee84e0eff04. )in macOSX Catalina (or in macOS-XI/11/X1 after it) download it in default ~/Downloads/ folder.
PROBLEM : if you try to install Legacy-Java package/pkg/PKG in macOSX ( i think in macOSX Mojave or macOSX after it ) you will receive various ERRORS from macOSX installer "This package is incompatible..." , it will STOP INSTALLING, etc, As it is very old, etc.
SOLUTION : So you will have to do some further modification(s) on pkg installer file on your own with below instructions, ( Do not download/use someone else's modified pkg file, as it may have unwanted components in it ).
Part of these below instructions are adopted from MacRumors-site user bogdanw (THANK YOU, bogdanw) , which are then further modified by me as original instructions were not working properly for me.
Note:
'cmd:' word is indicating a command is given after it, to type in the Terminal utility. Do not type/use the 'cmd:' word itself when you type/copy a command.'<YourUserName>' then change it to your actual macOS user name , and do not use the '<' or '>' symbols. An example: the ~/Downloads folder means /Users/<YourUserName>/Downloads folder . The '~' is short form of /Users/<YourUserName> folder aka your HOME folder . Folder = Directory.Follow below INSTRUCTIONS:
Finder, double-click/tap on that Legacy-Java "JavaForOSX.dmg" file , macOS HDIutil will mount/load the DMG archive file & in Finder you will see a new mount point (aka, new drive) "Java for macOS 2017-001" has appeared, & it has a file "JavaForOSX.pkg" inside it.cmd: hdiutil mount ~/Downloads/JavaForOSX.dmg"System Preferences" , in macOSX Catalina (or Mojave or macOSX after it) goto "Security & Privacy" > "Privacy" > "Full Disk Access" > click on "+" to add a new tool/app > File-browser window will appear, but it will not show HIDDEN files, so press [Cmd]+[Shift]+[.] 3-buttons together to Show Hidden Files. Browse into /usr/sbin/ folder, find the "pkgutil" binary file, select/open it, and make sure "pkgutil" in list has a tick-mark/check-mark next to it, so it gets full disk access."Terminal" utility need to be given either full-disk-access Or at-least access to these folders: "Downloads folder", "Removable Volumes" . Once you do something (i.e: run a command like this in Terminal: cmd: echo "1" > ~/Downloads/test.txt ) inside Downloads folder from Terminal, then macOS will ask you if you want to allow Terminal to access Downloads folder, allow that, (a privileged user & user's Password is needed to approve/allow that)."Terminal" utility (if not yet open), Type in below COMMAND(s):cmd: mkdir -p ~/Downloads/tmp/cmd: pkgutil --expand "/Volumes/Java for macOS 2017-001/JavaForOSX.pkg" ~/Downloads/tmp/OSXJavaSE6/"Error encountered while creating /Users/<YourUserName>/Downloads/tmp/OSXJavaSE6/. Error 17: File exists" , then delete the "OSXJavaSE6" folder (which is inside the tmp folder which is inside the Downloads folder), and run above pkgutil cmd again )cmd: hdiutil unmount "/Volumes/Java for macOS 2017-001/""/Volumes/Java for macOS 2017-001/" unmounted successfully. )cmd: sed -i '' 's/return false/return true/g' ~/Downloads/tmp/OSXJavaSE6/Distributioncmd: pkgutil --flatten ~/Downloads/tmp/OSXJavaSE6/ ~/Downloads/tmp/JavaSE6.pkgcmd: rm -r ~/Downloads/tmp/OSXJavaSE6"JavaSE6.pkg" file, inside the ~/Downloads/tmp/ folder, to run it.pkg file, do not delete, Keep it.
~/Downloads/tmp/JavaSE6.pkg file into ~/Downloads/ folder, in case later you decide to delete everything inside ~/Downloads/tmp/ folder:cmd: cp ~/Downloads/tmp/JavaSE6.pkg ~/Downloads/Remove full-disk-access permission from "pkgutil" if you will not do any more direct pkg-file modifications : just remove the tick/check mark from "pkgutil" for now, from here: System Preferences > Security & Privacy > Privacy > Full Disk Access.
DONE.
cmd: /usr/libexec/java_home -V
output of above cmd may look like below, (in my side it shows below info as those were my existing items when this answer was written):
Matching Java Virtual Machines (4):
14.0.1, x86_64: "OpenJDK 14.0.1" /Library/Java/JavaVirtualMachines/jdk-14.0.1.jdk/Contents/Home
1.7.0_80, x86_64: "Java SE 7" /Library/Java/JavaVirtualMachines/jdk1.7.0_80.jdk/Contents/Home
1.6.0_65-b14-468, x86_64: "Java SE 6" /Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
1.6.0_65-b14-468, i386: "Java SE 6" /Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
/Library/Java/JavaVirtualMachines/jdk-14.0.1.jdk/Contents/Home
( in above, the last line of output is showing the default JAVA location/version )
Find a solution thats suitable for your need/implementation:
(some Java-based App can find & use specific Java version (if pre-installed), without the need for ENV VARs setup by a shell/bash script, But some Java-based App needs ENV VARs set by shell script)
SETUP/USE SPECIFIC JAVA FOR A SPECIFIC JAVA-BASED APP:
in this way different Java-based App can use different Java . For this, we have to run a script file, & it will setup ENV VARs JAVA_HOME, PATH, etc only for that specific App, before running the app:
cmd: sb='#!/bin/bash' ; echo "$sb" > ~/java-based-APP-name.sh ; unset sb;
edit the shell script file:
cmd: nano ~/java-based-APP-name.sh
#!/bin/bash to use it as "BASH" shell script, then add below 5-lines:export JAVA_HOME=$(/usr/libexec/java_home --version 1.6);export PATH="$JAVA_HOME/bin:$PATH";# $JAVA_HOME/bin/java -jar executableJarAppName.jar# $JAVA_HOME/bin/java -cp jarAppName.jar <full-path-of-main-class>"/Applications/java-based-APP-name.app/Contents/MacOS/java-based-APP-name""~/java-based-APP-name.sh" & exit out from nano . ( Nano )"My MacApp.app", then it must have an executable file with same name here: "My MacApp.app/Contents/MacOS/My MacApp" . So above example script is using that example executable )cmd: chmod +x ~/java-based-APP-name.sh.sh file, so that it can get the specific Java that it needs:cmd: ~/java-based-APP-name.shSuppose you have a different (java-based) App2 that specifically needs Legacy Java 7 (1.7):
"java-based-APP-name.sh" shell-script, & rename copied filename into: "App2.sh", & Edit it: cmd: nano ~/App2.sh , & change line-number 2nd & 6th, as shown below:Line#2: export JAVA_HOME=$(/usr/libexec/java_home --version 1.6);Line#6: "/Applications/java-based-APP-name.app/Contents/MacOS/java-based-APP-name"export JAVA_HOME=$(/usr/libexec/java_home --version 1.7);"/Applications/App2.app/Contents/MacOS/App2"~/App2.sh & exit out of nano.cmd: chmod +x ~/App2.shcmd: ~/App2.shEXTRA INFO:
I was trying to run an old macOS app & the latest Jitsi.app.
Jitsi showed message that it needed Legacy-Java 6, but after installing Legacy-Java 6, i received such error:
[JavaAppLauncher Error] CallStaticVoidMethod() threw an exception
Exception in thread "main" java.lang.UnsupportedClassVersionError: net/java/sip/communicator/launcher/SIPCommunicator : Unsupported major.minor version 51.0
So i had to load Java 7 (1.7) for Jitsi (because, error-msg "51.0" points-to Java 7) . Jitsi can auto detect the needed Java version & use it, so no extra bash-script was needed for Jitsi, it ran fine.
For the old macOS app, i had to use Legacy-Java ( Java 6 (1.6) ) & a bash-script (shown above).
In my case I simply added to installation (requires a free account) the latest jdk-8u251-macosx-x64.dmg JDK from Oracle and everything turned out fine.