Questions tagged [java]

Widely-used object-oriented programming language, emphasizing portability. Questions about programming with Java are off topic and should be asked on stackoverflow.com.

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Disable Java updater in registry

Java updater ask for downloading new updates. How to disable on many computers in domain this feature? It is this checkbox: But seems to be impossible to uncheck it in registry. I tried: 32-bit: [...
Jerry1's user avatar
  • 249
4 votes
3 answers
59k views

How do I remove Java in Debian?

java -version java version "1.6.0_18" OpenJDK Runtime Environment (IcedTea6 1.8.13) (6b18-1.8.13-0+squeeze2) OpenJDK 64-Bit Server VM (build 14.0-b16, mixed mode) There doesn't seem to be an easy way ...
some1's user avatar
  • 484
4 votes
7 answers
18k views

Unable to install Android for Windows 7 because JDK is not found

I have JDK SE7u4 installed in windows 7. I tried to install Android on Windows 7 using the installer_r18-windows.exe but no avail. The setup window showed the message saying that the Java SE JDK not ...
user1294663's user avatar
4 votes
1 answer
4k views

Why groovy shows warning "An illegal reflective access operation has occurred" when I use JDK11

When I use JDK11, and then installed Groovy, some warning occurred like below: WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by org.codehaus.groovy....
Mingyue Xie's user avatar
4 votes
2 answers
12k views

Java 7 update 6 installation fails on Windows 7 when Chrome is default browser

I am configuring a brand new Lenovo U410 system with Windows 7 Home Premium for a user. I received the system direct from the shop. As part of the configuration I installed Java using the online ...
ali1234's user avatar
  • 296
4 votes
5 answers
14k views

Why there is no sun-java in Debian Wheezy and how can I fix this?

Sun's java is in Debian Lenny and Debian Squeeze repos (non-free) but no in wheezy1,2. Why? edit: after further research I found that java has been removed. reson: ROM; security issues and newer ...
seler's user avatar
  • 353
4 votes
2 answers
13k views

How to add Let's Encrypt to the Java allowed certificates?

I have recently switched to Let's Encrypt Private Beta for several of my domain names, and as a consequence several of my Java programs have stopped working because the certificate is not in the trust ...
Hay's user avatar
  • 241
4 votes
2 answers
35k views

After Java update, Juniper VPN site is not recognizing that Java is installed

I am using Chrome with an updated Java (v. 10.51.2.13, SE7 U51). Before the updated Java, I was able to get on my job's VPN without any issues. Now, after logging in, I get this prompt: I clicked run,...
Belmin Fernandez's user avatar
4 votes
1 answer
5k views

Upstart: unrecognized service (CentOS 6.4)

I have created an upstart service from this gist. I put it into: [andrey@vm01 ~]$ ll /etc/init/play.conf -rw-r--r--. 1 root root 1255 Dec 1 20:50 /etc/init/play.conf I also installed upstart, as it ...
Andrey Chaschev's user avatar
4 votes
3 answers
19k views

How to know if I am using Java EE?

Today I installed Java EE by downloading the .sh file from the official Oracle source and running it using the sudo sh filename.sh command. However, I have several versions of Java in my Linux Mint ...
Flame_Phoenix's user avatar
4 votes
3 answers
22k views

How can changes to Java Control Panel settings be saved?

I've just downloaded the latest JRE on a computer running a clean install of Windows 7. Now I want to do three things: disable automatic updating remove the icon from the system tray reduce the ...
Pops's user avatar
  • 8,473
4 votes
1 answer
23k views

How to Import *.p7s certificate chain into keystore?

I've used this commands to create my csr keytool -genkey -alias server -keyalg RSA -keysize 2048 -keystore domain.jks -dname "CN=*.domain.com,OU=Software Development, O=Company Name, L=Asuncion, ST=...
David Hofmann's user avatar
4 votes
1 answer
10k views

After upgrade to OSX Mavericks: "Unable to find any JVMs matching version 1.6"

After upgrading my work notebook from Mountain Lion (10.8.5) to the Mavericks (10.9.4) this weekend, everytime I open the terminal I now get the following error message: Unable to find any JVMs ...
reinhard.codes's user avatar
4 votes
2 answers
12k views

Cannot install Java 7 update 9 32-bit on Win 7 64

As there were several versons of Java on my laptop, I decided to uninstall them all and reinstall only the current version. I uninstalled all 64-bit and 32-bit versions using Revo Uninstaller. After ...
J. Parrino's user avatar
4 votes
2 answers
11k views

Eclipse crashed

I have Windows 7 64 bit OS, I was just using Eclipse Helios, before I restart my pc, after the restart I am not able to use eclipse anymore. when I click on the eclipse icon, it opens but while ...
Loolooii's user avatar
  • 191
4 votes
1 answer
6k views

Upgrade from OpenJDK 11.0.7 to 11.0.11 causes SSLHandshakeException: No Appropriate protocol (protocol is disabled or cipher suites are inappropriate)

I have a Java application that connects to an IMAP store and checks for messages. This runs on an Ubuntu 20.04.2 LTS focal on AWS. It is running on Java 11 (OpenJDK). All was working fine, until on ...
jbx's user avatar
  • 195
4 votes
1 answer
7k views

Groovy - Error: Groovy: Internal groovyc error: code 1

Everytime I try to run a groovy script I recive the error message I mentioned above. I don't really have a clue how to handle this error, I only can give you the entire error message. Information:...
Tom Krebs's user avatar
4 votes
4 answers
68k views

Windows 10 "busy processing" blue circle mouse pointer constantly spinning

I have Win10 on a Toshiba Satellite laptop. The "busy" blue circle mouse pointer is constantly on. I had been using Win10 without this issue for months. It only appeared after I did a restore from ...
Stuart C's user avatar
4 votes
1 answer
13k views

Incorrect java -version on command prompt

I already had JDK 5 on my machine. I have updated JDK by installing Java Development Kit 7. Now, I have set the Path and JAVA_HOME variables as per latest Java. but still "java -version" showing me ...
Umesh Patil's user avatar
4 votes
1 answer
10k views

Is the Firefox browser 64-bit on Mac OS X or is the Java website inaccurate?

On the Java download page for Mac OS X, it says: Chrome does not support Java 7. Java 7 runs only on 64-bit browsers and Chrome is a 32-bit browser. If you download Java 7, you will not be able to ...
NobleUplift's user avatar
  • 1,595
4 votes
2 answers
1k views

How do I toggle Java on/off in Safari browser?

In Safari preferences there is an option to disable Java which is nice but a bit cumbersome. Is there a plugin/addon/extension or an easy way to toggle Java on/off?
Henrik Söderlund's user avatar
4 votes
1 answer
640 views

Will the Java 7 JRE be pushed out as an automatic update to people running the Java 6 JRE? [closed]

I believe a precedent for this must exist... when the Java 6 JRE was released, were users of the Java 5 JRE automatically updated to Java 6 JRE? Or to put it another way, are automatic update capable ...
cagcowboy's user avatar
  • 477
4 votes
2 answers
5k views

Android Studio 4.1 Stuck at loading screen in Mac

My Android Studio has been stuck at loading screen since yesterday. X_X What I have tried: Restarting computer. Clearing junk files and logs. Completely uninstall and then Reinstalling AndroidStudio....
Zenko's user avatar
  • 141
4 votes
1 answer
4k views

Android Studio Instrumented Test fails with "DerInputStream.getLength(): lengthTag=109, too big."

On Android Studio 3.3.2 with java --version of 11.0.2, I can't run an instrumented test without this error: DerInputStream.getLength(): lengthTag=109, too big. Googling turned up something about ...
Chris Bush's user avatar
4 votes
2 answers
21k views

SSL connection on Java 7 based server fails with RECV TLSv1 ALERT: fatal, handshake_failure

A client-side SSL connection on a Java 7 based server fails with RECV TLSv1 ALERT: fatal, handshake_failure. This client is trying to connect to https://www.iatspayments.com The SSL debug log shows ...
Rodrigo Murillo's user avatar
4 votes
2 answers
7k views

How to enable Java Quick Starter (JQS) on Windows 7

I remember that Unix (Sun blades and Linux) did launch java apps instantly, especially if we compare to Windows. This was cool but now I call a java utility millions of times per second in the batch ...
Val's user avatar
  • 1
4 votes
2 answers
14k views

Performance OracleJDK or OpenJDK

I am forced to using Java on my server and I am having a headache installing Java. I have an automated deployment script which installs the software and needs to be run to reinstall the server ...
J.Zil's user avatar
  • 257
4 votes
1 answer
3k views

How to copy text from Java program?

I am using a Java program called JDownloader v0.9.581 and I wish to copy the full file and link list from main scrolling window. JDownloader has no way to save the full list as a text file. I have ...
Mohd. Ismail's user avatar
4 votes
1 answer
5k views

How to limit a Java process to a certain amount of RAM?

I am trying to limit Minecraft to a certain amount of memory. To that end, I start it from a batch file with the following line: javaw -Xms256M -Xmx256M -cp Minecraft.exe net.minecraft.LauncherFrame ...
AngryHacker's user avatar
  • 18.7k
4 votes
1 answer
2k views

MTU setting ignored by Java socket on loopback

I've got a mtu problem. I did the following: root@sa-headend:/home/sa# ifconfig lo mtu 1500 root@sa-headend:/home/sa# ifconfig lo lo Link encap:Lokale Schleife inet Adresse:127.0.0....
Simon Ottenhaus's user avatar
4 votes
2 answers
797 views

Eclipse won't Launch: java.lang.NoSuchFieldError: url

It was working last night, and then this morning, after no changes what so ever when I try and launch Eclipse it immediately cuts to a popup box: "An error has occurred. See the log file ". So i ...
James Robinson's user avatar
4 votes
4 answers
19k views

JDK 8 installation does not progress on Windows 10

I downloaded jre-8u91-windows-x64.tar.gz jdk-8u91-windows-x64.exe from Oracle web site this Oracle web site. When I open it (by clicking double) installation windows open, then I click Next and ...
Hilal's user avatar
  • 141
4 votes
1 answer
9k views

Why are some variables highlighted when debugging in eclipse?

I have bright yellow highlight on some variable values in debug perspective. They are not being watched. (Cannot show image as <10 reps.)
user350426's user avatar
4 votes
1 answer
3k views

Jabref will not start

When trying to start jabref, I see the following error WARN No appenders could be found for logger (org.java.plugin.ObjectFactory). log4j:WARN Please initialize the log4j system properly. Oct 31, ...
mrchampe's user avatar
  • 1,056
4 votes
1 answer
2k views

How do I combine multiple java buttons into a pile on the taskbar?

Does any one know how to have open java windows stack in the windows taskbar? I'm running a few (20) java apps and they don't combine therefore taking up loads of room on my task bar. Taskbar ...
Mike's user avatar
  • 71
4 votes
2 answers
4k views

Revocation Information for this security certificate for this site is not available

I will randomly get a security alert window with a java logo that says the above, even if I'm not browsing the internet (I suspect java's auto-update or a number of other auto-updates for security ...
Casey's user avatar
  • 334
4 votes
4 answers
37k views

Launch jar files on 64 bit java in Windows 7

I wanted to run java programs on a 64 bit Windows 7 computer and I have a 64 bit Java VM. How do I launch the jar files via command line ? It seems that 64 bit Windows 7 have a seperation between 32 ...
user318626's user avatar
4 votes
1 answer
2k views

Java Plugin a huge security risk? How to preseve Java plugin from privilege escalation?

Installing a regular Java plugin is IMHO a real security risk for non-IT people. Normally Java applets run in a sandbox and the applet cannot do anything harmful to your computer. If an applet, ...
Johannes Weiss's user avatar
4 votes
2 answers
608 views

Good operating system/virtualization layer combination for running dual screen with XP in a vm instance?

I have a situation where my work computer has Outlook+Lotus Notes with draconian protection. Unfortunately this means that Eclipse development (meaning zillions of small files) gets very slow. I now ...
Thorbjørn Ravn Andersen's user avatar
4 votes
1 answer
2k views

Can I delete the Java folders in ~Library/Application Support?

Can I delete the Java folders from Users/me/Library/Application Support? They are taking up 1GB of space. Note: I have applications that use Java so I don't want to remove these folders if other ...
1.21 gigawatts's user avatar
4 votes
1 answer
20k views

Should Java SE Binary be allowed to communicate with my private/public networks?

I downloaded the Elder Scrolls Online Tamriel Unlimited game on my pc and got a popup explaining that Java SE Binary wants to communicate with public and private networks. I am a noob. I don't know ...
Stressed Out's user avatar
4 votes
2 answers
296 views

Copy Linux liveUSB causes errors with init.d scripts - Impossible..?

Please post your thoughts ideas or anything you may come up with. I would be very interested to see what anybody else is thinking. The Overall Problem When I install a simple Java application (that ...
4 votes
1 answer
2k views

X11 forwarding affects Java Swing GUI dropdowns - Items not selectable, Menus collapse immediately, and so forth

Have a Java Swing app that is running on a Linux server and is being X displayed back via X11 forwarding. Cygwin is running on my workstation. Connection is made to the server using PuTTY with X11 ...
marlhammer's user avatar
4 votes
1 answer
1k views

"Load average" stuck on 7.0

I'm using gentoo and anytime I do uptime, my "Load average" is stuck at 7.0 across the board. When using top or htop or dstat the CPU usage is always idle. The computer is used to run a Java program ...
Daniil's user avatar
  • 285
4 votes
3 answers
4k views

Deleted JavaVM.framework, how to restore?

I accidentally deleted /System/Library/Frameworks/JavaVM.framework, and now i can't use any command like java, javac, etc.. even if i have java installed. So someone know how to restore this folder (...
lhrinaldi's user avatar
4 votes
5 answers
17k views

JDK-Installer doesn't install

I can't install JDK on my Windows 7 64bit system. I downloaded the latest version (jdk-7u4-Windows-x64.exe) from Oracle and ran it. A warning appeared, because it's a download. I commited to continue. ...
maiermic's user avatar
  • 141
4 votes
2 answers
496 views

2 Java updates needed?

The picture below is a cropped snapshot of the programs and features section of my control panel on windows 7. Notice I have 2 Java things (Update 22 and Update 24). Is this needed, or can I ...
Web_Designer's user avatar
4 votes
1 answer
3k views

Java stopped working, javaw.exe at 100% CPU

Windows XP 32bit. Working fine for a long time. Recently, everything related to Java stopped working. Even the Java app in the Control Panel is not working anymore. Whenever anything Java-related is ...
Florin Andrei's user avatar
4 votes
1 answer
13k views

How to install Sun's JDK on CentOS?

I having difficult time installing Sun's JDK on CentOS. The default installing with "yum" is "openJDK", but I need to install Sun's JDK. Is there easy instruction out there I can use or any ...
Jay's user avatar
  • 41
4 votes
4 answers
4k views

What do the parameters in update alternatives install mean

I need help in understanding the following parameters "/usr/bin/java" "java" ""/usr/java/latest/bin/java" 1 in the following command. update-alternatives --install "/usr/bin/java" "java" ""/usr/...
HSV's user avatar
  • 51

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