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Questions tagged [java]

Java is a cross-platform programming language created by Sun Microsystems and is now owned by Oracle. Do not confuse this tag with JavaScript or JScript.

2
votes
1answer
40 views

Did Oracle remove the Java System Preference in macOS?

I recently updated my Java install on macOS 10.14.4 from Java 10 to Java 11, and the Java System Preference pane disappeared after Java updated. I updated Java again on a different Mac running the ...
2
votes
1answer
130 views

Is it allowed to be an Apple trusted developer with pure Java

I am developing JavaFX with Spring applications that are shipped with native installers for Windows, Linux and macOS. I am hosting the macOS DMG and pkg installers outside Mac App Store on my web site....
0
votes
0answers
38 views

Java is taking up 95-100% of my CPU

I have a 2018 MAcBook Pro i use to program in University. Whenever i do this, i use Eclipse IDE and it takes from 95 to 100% of my CPU, which sometimes leads to my fans to be loud although the pc isnt ...
1
vote
0answers
19 views

Java update failed

Just realized that java on my mini 2012 is 1.6.0_65-b14-468. Therefore I searched for anything newer compatible with JDownloader. Therefore I downloaded 1.8 (jre-8u201-macosx-x64). Apparently the ...
0
votes
0answers
38 views

Proxy - apple products not sending proxy-authorization headers with request

I have written a java-based proxy using the netty framework. The user inputs their credentials into a proxy authentication box, these credentials are passed along down the netty pipeline. The ...
0
votes
0answers
39 views

Apache Netbeans 10 binaries not working

I have recently downloaded the Apache Netbeans 10 binaries from the Apache Netbeans (Incubating) site. I extracted the zip file to /Application/netbeans/. But when I try to run /Application/netbeans/...
0
votes
0answers
215 views

Using “Jar Launcher” on High Sierra how do I pass command line arguments to a java app (jar)

Is it possible to use "Jar Launcher" on Mac to pass command line arguments to a java app? For example: open myApp.jar --args -hello This ought to run myApp and pass it "-hello" but it doesn't. I'm ...
1
vote
1answer
55 views

I have Java 8. An app wants Java 6 (legacy one). Can I avoid that?

My government made a Java app to submit tax documents. That app, it's actually a very outdated version of Eclipse. When I run this ugly mess, I get a dialog that prompts me to install Java SE 6 (...
1
vote
0answers
27 views

How can a I run a bundled app with Java 11?

I followed the answer to this question to get a bundled app to work with Java 8... How to direct an app to use a specific Java version? I would like to know if I can get it to run with the latest ...
1
vote
1answer
400 views

How can I upgrade from Oracle JDK 8 to OpenJDK 8 using Homebrew?

If I have Oracle Java SE JDK 8 installed on my mac, how can I upgrade to Open JDK 8? Motivation: Android build tools seem to need JDK 8, but according to the following links Oracle JDK 8 will not ...
1
vote
2answers
269 views

How can I upgrade my mac to OpenJDK 11 using Homebrew?

If I would have Java SE 8 on my mac, what would be a quick way to upgrade to OpenJDK 11 using Homebrew?
1
vote
1answer
292 views

Python on High Sierra “No Java runtime present, requesting install”

I have python code that works just fine in multiple other places and "used" to work on my mac, but now when I try to run my code as: python <pythonfile>.py I get an error which says: No Java ...
0
votes
1answer
288 views

Does macOS Mojave comes with java pre-installed?

I just ran which java command and got the output /usr/bin/java I also executed java -version command and also got version information output. So I believe that there is an actual java executable and ...
0
votes
1answer
26 views

Do you see video artefacts on your MacBook Pro when opening the Java control panel?

Calling all MacBook Pro 15" 2018 owners, particularly owners of the 2.6 GHz model. Would you be willing to test something on your 2018 MBP? (15”?). Install the latest Java JRE (https://download.oracle....
4
votes
2answers
586 views

Obtain Java 11 for macOS?

I know in recent years the Java development cadence has changed, becoming much more rapid and more predictably scheduled. New plans were announced for regular Long-Term Support (LTS) releases. And I ...
2
votes
1answer
210 views

How do I remove java version “1.6.0_65”?

Every single time I try to install the Oracle Java Runtime Environment... I keep being stuck with Apple's Java 6. I have no idea how Apple's Java 6 ended up on my computer in the first place. The mac ...
5
votes
2answers
1k views

Can't set different Java version in Mojave with jenv

I want to have different Java versions on my machine. I installed jenv for that reason. However, I can't set the desired Java version to it. Actually couldn't set any version. I have Java 8 and 11 ...
2
votes
1answer
44 views

Is Java UDP communication broken on macOS?

I've been trying to figure out why a Java program that uses UDP communication on Windows works 100% fine but seems to regularly drop packets on a macOS build of the JVM (8.x). I saw another thread on ...
0
votes
1answer
246 views

deleting java from system library on mac

I can't delete java from my mac. I tried deleting it from system/Library, but it says the os mac system needs it. I want to install an older version because a specific website needs it, but it keeps ...
0
votes
1answer
2k views

In macOS, how to run a JNLP file with OpenJDK 8?

Due to the new license of OracleJDK8, I have to use OpenJDK8. I have installed AdoptOpenJDK8 from Homebrew and it works well. The problem is that I have to launch a Java application from a JNLP link, ...
1
vote
1answer
69 views

Is usr/local/bin the correct directory to place JAR files?

I have built an application that includes a JAR file I developed and I've had issues trying to run it correctly from the AppleScript application with: set foobar to POSIX path of (path to me) & "...
1
vote
0answers
53 views

Accessing specific version of Java in Safari

I am using Safari 12 running on macOS Mojave 10.14. The Web based VM detects the installed version of Java on my Mac as 1.5. For my particular needs version 1.6 is required. I have installed the ...
12
votes
2answers
13k views

How can I install java openjdk 8 on High Sierra

How do I install OpenJDK 8 on High Sierra? It looks like support for the Java Oracle JDK version 8 will be deprecated after January 2019 Java SE Overview Additionally, it looks like publishing and ...
0
votes
1answer
3k views

how to get JDK 7 for Mac OS High Sierra

In order to run some tools for a project I'm working on, I need to install specifically JDK 7. I already have JDK 8 up and running. I searched in Oracle and open-jdk web sites but seems to be ...
4
votes
1answer
276 views

Upgrading from OS X El Capitan to macOS High Sierra

I'm in the process of planning an upgrade from OS X El Capitan to macOS High Sierra, and I'm using things like Homebrew, Composer, Elasticsearch, and — by extension — Java. I'm using MAMP Pro with ...
5
votes
1answer
102 views

Is it safe to install a deprecated Java version?

I have an old version of Photoshop that requires an outdated Java runtime. "More info" takes me to this Apple support page where you can download the older JRE. Seems reasonable enough, but I am ...
1
vote
1answer
103 views

Can't update to Java SE 8u181 from 8u171 on El Capitan [duplicate]

as part of my update routine, I wanted to upgrade from the installed Java SE 8u171 to Java SE 8u181. Before anyone asks, yes, one software DOES need Java (LibreOffice). Problem is, the install ...
-1
votes
1answer
141 views

How do I get a standalone (no install necessary) JDK 8 for Java coding on Mac?

I am using a public computer and I want to do some Java coding on it*. I was able to download IntelliJ and I was able to copy it to my desktop and run it (see here), but I was not able to install the ...
0
votes
1answer
339 views

“Reopen the Java Control Panel” doesn't do anything

From System Preferences, I open the Java icon and it shows: And that's all. The "Reopen the Java Control Panel" button doesn't do anything. There isn't any separate window anywhere. macOS High ...
5
votes
2answers
4k views

What is the latest version of Java for macOS High Sierra?

On my High Sierra Mac java --version gives java version "1.8.0_172" Java(TM) SE Runtime Environment (build 1.8.0_172-b11) Java HotSpot(TM) 64-Bit Server VM (build 25.172-b11, mixed mode) but in ...
4
votes
1answer
535 views

How does macOS store Unix file permissions in ZIP files

I am trying to extract a ZIP file in Java which was created on a Mac using the built-in archive functionality of the Finder. As the ZIP file contains an application bundle, it is important to retain ...
1
vote
1answer
86 views

What is “~/.asdasd/asda.jar”?

I found a curious little .plist in my LaunchAgents, and I'm worried it could be a rootkit or other backdoor. Here are its contents: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist ...
1
vote
0answers
89 views

OS X stopped opening .jar files through Finder

Yosemite 10.10.5 I have a .jar file that I was able to execute by double-clicking it in Finder. Today, if I try that, it won't open. Sometimes something will appear briefly on screen but disappear ...
2
votes
0answers
780 views

How to change current JRE on mac?

I would like to change the current JRE from Version 10.0.1 to some previous versions like 1.8 for instance. At the moment Im confused about my current setting. Basically, Java Panel in System ...
1
vote
0answers
39 views

Action Keystroke GUI For Mac OS X [duplicate]

EDIT: This post was edited due to the automated "Title" keyword matching function of this site that caused some confusion for us humans with the word "AutoHotKey"
21
votes
4answers
49k views

How to remove Java 10? Or revert to the previous version?

The Java updater on my Mac installed an obscure version of Java 10.0.1 which I never heard before. The result is that ALL my java apps are not running anymore, which makes Java pointless. The ...
2
votes
1answer
632 views

Unable to execute JAR file

I wrote a small Java desktop application using NetBeans, Java 8 and JavaFX 8 on my MacBook running macOS High Sierra. I can launch it from Terminal by executing a Bash script (mentioned below), but ...
2
votes
0answers
17 views

How to call an external window-app in Scala (or Java) and WAIT for it to be closed? [closed]

I use macOS and, from Scala, I like to call the default text editor on text files. I want the user to be able to edit/modify the file, and be called back / notified in any form when this editing is ...
2
votes
1answer
362 views

“Installing” MySQL JDBC .jar file for MATLAB

Goal: "install" JDBC drivers for MATLAB to use This article indicated that one can put the JDBC driver .jar file in: /Library/Java/Extensions/ .bashrc and .bashrc_profile were configured with ...
1
vote
1answer
82 views

How to install JRE in a way usable for dev?

I have Java 8 installed by an admin /Library/Java/JavaVirtualMachines/jdk1.8.0_151.jdk/Contents/Home/bin /Library/Java/JavaVirtualMachines/jdk1.8.0_151.jdk/Contents/Home/jre/bin I needed to install ...
1
vote
1answer
140 views

I found but can't open eclipse.ini (bad parsing)

I know the trick with "show package contents" and I've gone to: $ECLIPSE_HOME/Eclipse.app/Contents/MacOS However, the file in there is 'eclipse', rather than 'eclipse.ini' Furthermore, when I open ...
2
votes
0answers
194 views

Setting up Wireless on a Brother HL-2270dw on High Sierra

Any ideas on how to set up wireless printing on a HL-2270dw for someone running 10.13.x (High Sierra)? Most of the Brother instructions require 10.11 or 10.12. The SetupWizard Java App crashes on 10....
4
votes
1answer
57 views

How do I create an installer for a macOS app?

I want to create an installer for a Apache Mesos for Mac. I don't want to use brew since that needs several steps and an internet connection and packaging makes one definite version we can push and ...
1
vote
1answer
718 views

Managing multiple Java Installations

After hours of Googling I'm a little depressed with the results.. For work, I have multiple Java Installations, some of them via SdkMan, and some of them seem to found there way into the /Library/...
0
votes
1answer
720 views

How do I change what's returned by /usr/libexec/java_home

$ echo $JAVA_HOME /Library/Java/JavaVirtualMachines/jdk1.8.0_66.jdk/Contents/Home $ /usr/libexec/java_home --verbose Matching Java Virtual Machines (2): 1.6.0_65-b14-468, x86_64: "Java SE 6" /...
0
votes
0answers
51 views

Install Jira: issue with java JDK

I am trying to install Jira which requires java JDK. I installed the latest Java JDK and it says it was successfully installed. However I get an error: Unable to locate an executable at “/usr/bin/...
0
votes
1answer
464 views

Setting JAVA_HOME not working in Sierra

I have following versions of Java: $ /usr/libexec/java_home -V Matching Java Virtual Machines (4): 9.0.1, x86_64: "Java SE 9.0.1" /Library/Java/JavaVirtualMachines/jdk-9.0.1.jdk/Contents/Home ...
1
vote
1answer
302 views

MacOS dock freezes when I launch Java application

I have a late-2016 MacBook Pro (without Touchbar) - MacOS High Sierra 10.13.2 - Java 9 Since one or two weeks, when I launch a Java application (NetBeans, a JavaFX app, Eclipse... etc) my MacOS docks ...
1
vote
0answers
665 views

Got a Java process with about 4 GB memory consumption after just starting up macOS

I recently found there is a Java process with more than 4 GB memory in my MBP, and it respawned after I force quit it. After restarting the computer and entering safe mode, the process does not ...
1
vote
2answers
5k views

CS5ServiceManager Java error shows up at startup of Mac

Every time I start my computer a popup window shows up that says "If you want to open CS5ServiceManager you have to install the older Java SE 6 Runtime" Why does this show up, and how do I resolve ...