After completing the downloads and installations, check if the problem has been resolved. If the version of Java installed on your computer is the latest, and you still experience speed issues, there is a way around that. If your. That is why it is essential to double-check your file for any errors before trying to run it. You also need to check whether you have Java installed on your machine. To make sure that this is not the case, copy the code and paste it onto a new workspace, and see if this resolves your problem.
Running the. If you can check the error message and apply the recommended fixes, this might help solve your problem. If the. Hopefully, the above three solutions have helped resolved your problems with launching. The best solution among the three is to download the patch from Apple because it seems that the company has at least recognized that the bug stems from their side. If you have any more ideas on how to launch a. Check the console for possible error messages. So I open up console, tried to run the thing again, but nothing seems to show up in the All Messages tab.
I type Java in the search tab, nothing comes up. If you activate this button and try to open the DrJava jar file again by double-clicking it , Mac OS X asks for yet another confirmation indicating you really want to do it. After you perform this final confimation, the DrJava file will behave normally when it is subsequently opened. The Java JAR file ' Check the Console for possible error messages. By entering 'java -version' in Terminal, it showed that I had the older version 1.
After installing it, there was a check to verify that the new version is actually installed. Showed that everything was OK and that I have the new version. I restarted the computer, however, when entering 'java -version' in Terminal I still get the same result: Version 1. And of course, the. Note that installing the JDK on OS X is performed on a system wide basis, for all users, and administrator privileges are required. You cannot install Java for a single user.
The one exception is that the system will not replace the current JRE with a lower version. What should be done for this problem?
First, we need to check current java version running on your mac. Mostly current jar file worked with jre version 1. So how to resolved this problem? A promising solution for installing multiple version of java is to use JEnv a command line tool to set java on the fly.
On Mac, Homebrew is the de-facto package manager, and Homebrew Cask is the app manager. You have to do it yourself. Luckily, Homebrew Cask made this task really easy. If you run into permission issue, add sudo at the beginning of the above command. The JDK will be installed at the following directories. Type these commands to register JDKs in jEnv replace the minor and patch versions with yours :.
Alternatively for switching between java version, i put the following lines in my. Now you can switch your jre version using jenv or alias command.
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