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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37 views

Tomcat 7 has high cpu usage then fails when run as windows service

I put a ROOT.war in the webapps folder and tried to run the windows tomcat 7 service, but after starting it, it just hangs, spikes its cpu usage and then stops. There's nothing about the crash in the ...
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12 views

RHN + Rollback from a Snapshot return error

I am using the RHN version 5.7 And after I created snapshot and update the Linux machine with errata update Now I want to perform a rollback I am trying to perform rollback from a snapshot as ...
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13 views

Eclipse Luna is crash in CentOS, whenever I tried to edit any Java file or any other file

Eclipse Luna is crash everytime in CentOS whenever I tried to edit any Java file or any other file. Eclipse is closed always. Plz suggest me something. I am running centOS in VirtualBox VM and Host is ...
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8 views

Requesting Help About Revelio Error

I downloaded Revelio software for a network test work, but it's not working properly. It says java lang error again and again. I tried many times. The website said that pc should have java ...
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69 views

Java out of box cacerts certificate are SHA1 is there one with SHA2

Java/JDK/JRE they have a keystore cacerts under lib\Security folder as shown below Java comes with around 93 certificates out of box, These are not self-signed these are supplied by java itself ...
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67 views

Is It Possible to Try Out Eclipse Che on Openshift Online? (Run Docker)

Is there any way to run Eclipse Che on Openshift Online? I created a DIY server and installed Eclipse Che to $OPENSHIFT_DATA_DIR, however upon running sh che\bin\che.sh, I was informed that Docker ...
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14 views

XML Spy Blocks Weblogic 10.3.2

My computer was shut down abruptly and since then i'm not able to run weblogic (10.3.2) locally on my computer ( neither from eclipse or manually from the oracle domain) . i keep getting the message: ...
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42 views

Install Saiku CE (Tomcat web app) as a Windows Service

I have downloaded Saiku CE. It's an WEB app that runs under tomcat. The downloadable version comes with a preconfigured instance of tomcat, and when I fire the server with catalina.bat everything ...
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51 views

How to start Minecraft 1.8.8 from the command line?

I'm trying to launch Minecraft 1.8.8 (or higher) from the command line with the Username and the Session ID as parameters. This code doesn't work: java -Xms512m -Xmx1g -Djava.library.path=natives/ ...
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51 views

Cannot install JDK 8 on new installation of Windows 10

I installed Win 10 Pro 64 bit on my computer today. I need to install Java SDK and Android Studio as I need them for my work. I downloaded the exe file from Oracle, as I have done several times in the ...
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14 views

How do I address the java process warning and MySql conflict while deploying Hortonworks?

I have two nodes in AWS. I got a java process warning while registering and confirming hosts. Could this warning message, issued for the name node, be ignored please? Process Issues (1) The ...
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43 views

Running java app as root in apcupsd doshutdown causes java: Permission denied

I'm trying to customize apcupsd doshutdown event script to run a certain java program which among other things at the end hibernates all virtual machines and finally the main system itself. ...
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37 views

How to determine if Windows remote workstation is powered on

My Situation: I work at a company with about 500 computers in at least five different states. All of them are Windows machines (the great majority are Win 7). What I need to do is determine whether or ...
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34 views

How do I implement and integrate my own SASL provider?

(This is my first foray into authentication, so please be gentle) I'm running an Apache/Tomcat site with single sign on and bcrypted passwords on a CentOS server. Now I'd like to provide ...
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18 views

Whitelisting JAR-files

at the moment I try to create a Windows-'hardening guide' for some company. A requirement is that the Java Runtime Environment (JRE) is installed. I'm absolutely on in Java however and one requirement ...
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16 views

What is differance in NetBeans IDE available for download on netbeans.org and www.oracle.com

I found NetBeans IDE on the official site of oracle (www.oracle.com) and from netbeans.org available for download and on oracle's site its download package for windows is 305 MB and on netbeans.org ...
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30 views

In the Java Control Panel Advanced tab, when I check Mozilla family it unchecked automatically

I need Java to run Oracle EBS Apps on the browser. I am having a problem adding the Java plugin on Firefox. In the Java control panel advanced tab, Default Java for browser, when I check Mozilla ...
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20 views

How to add Xapian to eclipse

I want to use xapian db for my java project . However, I do not understand how I can add xapian to eclipse . I am following this code : import org.xapian.*; public class SimpleSearch { public ...
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22 views

Have to uninstall netbeans and its folder permanently

May i know the procedure to uninstall Netbeans and delete the folder of netbeans permanently .i tried in a regular procedure but "ACCESS IS DENIED" message is displayed .i tried it through cmd ...
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263 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 ...
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10 views

Debian: email notification when java app is down

I have dedicated server and many launched screen sessions. And sometimes apps in this screen sessions are going down (java apps). I can't always monitor this so I want to receive a email notification ...
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307 views

How to run .jar file on Mac 10.11 without installing Java?

So I made an application using Java swing and converted it to a .jar file and would like to share it with my friend. However, he is not a programmer so his computer needs to install Java bloatware to ...
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30 views

Openvpn error in El Capitan

I use a java application to connect to openvpn. It worked well on Yosemite but immediately I upgraded to El Capitan it stopped working. It gives the error "OPENVPN ERROR OCCURED: java.io.IOException: ...
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22 views

Java Processes on second identical server is taking up twice as much cpu time

I have two servers with the same exact configuration. Both servers are running a java process that are running the same code base. JVM arguments are the same Java System properties are the same ...
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12 views

How to use dacapo benchmark

Hi I am going to use dacapo benchmark for the first time. I want to test the performance of a program that instruments calls to next and hasNext in the main program. I am not sure how I can do that ...
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17 views

specific java build from Oracle archive

I want to download a specific Java build (1.8.0-b132). I went to the Java archive download link Java archive download link But it is sorted by update, not by build. How do I know which Java update ...
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114 views

Unable to locate an executable “/Library/Java/JavaVirtualMachines/jdk1.8.0_71.jdk/Contents/Home/bin/apt” (-1): re-directing an executable

I'm typing in [sudo apt get build essential] in the command line and receiving this error: Unable to locate an executable at ...
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23 views

Eclipse Mars taking a long time to begin running code

I've been having a problem with Eclipse Java Mars where when I hit the run button to test my code it shows the following in the lower right corner of the IDE with a green progress bar: Launching ...
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44 views

IntelliJ 14 Slow in compiling multi module project

I've noticed that when I'm compiling for the first time with my multi module project IntelliJ is taking considerable amount of time to compile. Any settings to solve this? If I select the "export" ...
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128 views

Further actions message after installing Matlab R2015a, Are they all needed?

At the final step of installing Matlab R2015a on my Win7x64 machine, I've come up with the following message. What is this? Should all of these steps be done? Your installation may ...
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38 views

-nomultimonitor option does not work correctly in XMing with Java applications

This is my monitor config: I am running remote applications and display it's windows on my client computer with the help of Xming If I use nomultimonitor option along with multiwindow, it ...
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188 views

To open “XXX” you need to install the legacy Java SE 6 runtime

I use OSX El Capitan, and I have installed the latest version of Java recently. While everything works fine, there is one older app that I need to run which is giving me the following message: When ...
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34 views

Extra *(astericks) is displayed when entering encrypted password on cmd prompt

I have below code to encrypt the user password, when user enter the password an * symbol is displayed on the cmd prompt. In below code, an extra asterisks is always displaced when I run the command. ...
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30 views

Could not create jvm fatal exception

I installed Parasoft soatest 9.7 software.when i try to open got the error as could not create jvm fatal exception.i tried mostly all solutions for this issue I went to eclipse.ini confg file change ...
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70 views

_JAVA_OPTIONS Environment Variables doesn't work for Error:Could not create the virtual Java Machine. Why?

I have been trying to install Crazy Craft 3.0 on my Minecraft. I have met the necessary requirements, got Forge, and downloaded the VOID'S WRATH Launcher, etc. However, that darned Error page keeps ...
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39 views

Change IE Java Version Programatically

I need to change the Java version IE uses as we have two independent plugins which require different versions. Is there a way of registering the version with IE programmatically or by modifying a ...
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30 views

2nd Instance of Tomcat not showing up in Eclipse Mars server console

I have one instance of tomcat already added in the server console as shown below: I am trying to add another instance of tomcat server using the following steps : Add Server Runtime Window - ...
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25 views

How to set JAVA PATH in system properties

How to fix “not recognized as an internal or external command” in Windows?
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156 views

Raspberry Pi Error: Could not find or load main class net.tinyos.tools.Listen

I have successfully installed TinyOS and NesC in my Raspberry Pi but when I ran java net.tinyos.tools.Listen -comm serial@/dev/ttyUSB0:telos I got an Error: Could not find or load main class ...
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48 views

How can we deploy java.policy to <JAVA_HOME>\lib\security

for example, our user workstations are using java 8 update 51, the java is installed at C:\Program Files\Java\jre1.8.0_51\ There is a file aka java system policy file -> C:\Program ...
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18 views

An ftp installation on Amazon linux from ssh java client

I have just successfully started an EC2 instance on AWS, I have successfully installed a LAMP server using YUM from the mindterm JAVA ssh client.... However it reaches a point where I'm required to ...
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35 views

Install programs for different accounts Win7 Home Premium

Can someone explain me how to install a corporate software in their community editions for different Windows 7 Home Premium users' accounts. I'm planning to create an account on Win7 for installing a ...
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135 views

Zookeeper vs MS ActiveDirectory or LDAP

I'm currently looking for a good configuration storage, which is quite easy to integrate and maintain. As far as I see, Zookeeper is the most suitable one for Java applications. (It has a very ...
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33 views

The field Component.height is not visible: Java

I am making a program, and it keeps on saying: The field Component.height is not visible This is the program (The file that won't work): package my.project.gop.main; import javax.swing.JFrame; ...
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27 views

My rundll32 url.dll does not work with try catch

I set firefox to default browser and use command rundll32 url.dll to launch url in java. It's work well. After that, I go to firefox folder, change firefox.exe to firefox123.exe..The command rundll32 ...
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50 views

Install and run opengamma

I am trying to install Opengamma on Arch Linux as per this wiki https://github.com/OpenGamma/OG-Platform also there is a reference docker image available https://hub.docker.com/r/ptimof/opengamma/ ...
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69 views

Java Control Panel won't open

I can't open the Java Control Panel (even with the "javaws -viewer" or "%SystemRoot%\system32\javacpl.cpl" cmds). I tried reinstalling (after Revo Uninstalling, then after manually deleting all ...
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59 views

FireFox doesn't recognize correct Java RE

I have Win7 with FireFox 41.0.2 with a very old profile and 7 different Java instances. I can't simply delete old Java instances or the whole FireFox profile, and shouldn't be needed to. FireFox ...
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340 views

Update JAVA 8 Update 60 to Update 65 or 66?

I had Java 8 Update 60 on my systezm & it told me there was an update to update 65, so i have updated. However there also is Update 66, yett Java on my system doesn’t want/need to update to that ...
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20 views

Making Cassandra work with certs/keys generated by OpenSSL instead of keytool

I saw this in the Cassandra documentation: http://docs.datastax.com/en/cassandra/2.1/cassandra/security/secureSSLCertificates_t.html I found this line "SSL certificates must be generated using ...