Programming language and runtime environment that allows compiled Java programs to run unchanged on most hardware and software platforms

learn more… | top users | synonyms

4
votes
1answer
500 views

SNMP query - operation not permitted

I am working on API that reads a lot of data via SNMP (routes, interfaces, QoS policies, etc...). Lately, I have experienced a random error stating: Operation not permitted Now, I use SNMP4J as ...
3
votes
1answer
138 views

Tomcat shuts down unexpectidly

I am using Apache Tomcat 8.0.23 with 1 GB RAM on centos 6 OS . I have used servlet and jsp for server side . But after few days it shuts down automatically . I have given memory size as CATALINA_OPTS="...
3
votes
1answer
265 views

Remove all sites from allowed list for plugin in IE via GP

I would like to remove all sites from the list of approved sites for a plugin in Internet Explorer as described here but I would like to do so via Group Policy. Is this possible? I know I can disable ...
3
votes
1answer
5k views

How to install Oracle Java on Debian Wheezy with make-jpkg and fakeroot without errors?

How to install Oracle Java on Debian Wheezy with make-jpkg and fakeroot? the manual for installing oracle java on debian wheezy is quite clear and understandable: http://wiki.debian.org/JavaPackage ...
3
votes
1answer
117 views

How to determine what websites or local applications are using JVM/JRE

We run a large Windows shop -- tens of thousands of workstations. Most have a version of the Sun/Oracle Java Virtual Machine (JVM) installed. With all the security issues around the JVM, we'd like to ...
3
votes
1answer
180 views

HTTPS Connection error

I am trying to connect to a servlet from usinghttp url connection,i.e http://localhost:9481/test/NewServlet. It worked fine for me. Now I want to connect using https://localhost:9481/test/NewServlet. ...
2
votes
1answer
581 views

Error while installing jasperserver

I am about to install a jasperserver instance on my server. This is not my first jasperserver installation and I did this already on my host system and on a lxc. But now for some reason I get ...
2
votes
1answer
437 views

Is the Kerberos SPN FQDN significant to the server, or is the keytab enough?

I spend most of my time as a developer, so I'm not familiar with all the details... I have a service running on a linux host. I want to use Kerberos to transmit identity information to the service. ...
2
votes
1answer
253 views

Any way that I can feed tshark a live capture written to a file without reading from the start?

I'm capturing traffic from a microtik router to my linux server and writing to a big file. I'm searching for a way to feed from the current file end forward since it is a several GB file and I can't ...
2
votes
1answer
263 views

Bandwidth fluctuations while running java server

We are running a distributed system of java servers (os: linux) doing lot of computation with communication over TCP. While our traffic pattern in not bursty, on some machines we see a fluctuation in ...
0
votes
0answers
281 views

Unable to install tomcat using aws cloud formation scripts

I'm very new to the AWS services. I'm trying to use the AWS cloud formation and I created a template. I am unable to create machines using that cause everytime the launch config tries to install the ...
0
votes
0answers
104 views

After a sudden heavy traffic, Tomcat 8 accepted new connections but not responding

We are running tomcat 8.0.26 on production environment. After a routine deployment, we were switching traffic to the newly deployed tomcat cluster. The rps on each node was about 800 at that time. ...
0
votes
0answers
19 views

Vulnerability assessment for JAVA based application

A organisation has hosted a web application which has been developed over java based platform. Administrator has hosted a application on Apache TOMCAT running over privateip and mapped it with some ...
0
votes
0answers
99 views

Cannot install Oracle's Java 8 on Tinycore/Docker

I tried to create a Docker container based on Tinycore with Oracle's Java 8 JRE in it, but when I try to run the java binary, the shell respons with "not found" - even when calling it by its full path....
0
votes
0answers
48 views

Oracle / Sun ILO reports : Certificate not within the validity period

Trying to use to Oracle ILO(M), when I launch the remote console, Java Web Start starts, but then gives this error : Error screen The more information screen looks like this : More information ...
0
votes
0answers
181 views

opentsdb process stuck due to “Unexpected exception from downstream”

I am trying to put data into openTSDB. I prepared 100 files of raw data. Each file contains 5 million rows of data. I`m using the RESTful API, put to operate one files at one time. The problem is , ...
0
votes
0answers
239 views

one or more threads of java.exe are waiting to finish network I/O windows 2012 server

I have installed jdk-8u45-windows-x64 on my windows 2012 server. I am seeing that in task manager java.exe is utilizing high CPU. I check he detail in task manager via right clicking on java.exe then ...
0
votes
0answers
182 views

Applet not allowed to run

I am running a simple applet application into my mozilla firefox browser but java blocks it. I have done all changes as suggested on different different articles like adding url to ESL, security ...
0
votes
0answers
304 views

How to make Java auto-update for small organization with non admin users?

I'm stuck with an issue regarding Java which is a real pain in my ass. I'm managing small office networks where I get great results using AD and GPO to set everything up and automated. In each of ...
0
votes
0answers
87 views

Tomcat: multiple domains from a single instance

I'm trying to host multiple domains on a single tomcat instance. I have it working but I'm not sure if it is the correct way to do things. The server.xml Hosts section is changed to this: <...
0
votes
0answers
25 views

ActiveMQ SSL Transport w/ Multiple Certs in Keystore?

We're running ActiveMQ Transport w/ SSL enabled (port 443/HTTPS). We have four domain certs: *.domain.com *.domain-dev.com *.domain-qa.com *.domain-stg.com I've gone through the process of ...
0
votes
0answers
73 views

Session State issue in glassfish 3.1 Web Server with load balancer

I have 5 ubuntu servers with glassfish 3.1. A spring MVC web app is deployed on all 5 servers no clusters are used. We have configured all web servers behind load balancer, (while testing) we observed ...
0
votes
0answers
16 views

Identifying cached JNLP applications via batch script

I am attempting to script a solution to install JRE 7 only to systems that run a particular JavaWS application. Essentially the current application requires Java 6 and the upgrade will break ...
0
votes
0answers
127 views

What is the difference between Oracle WebCenter Content and Oracle Portal?

I'm having a difficult time understanding the difference between these two technologies. What I have understood is: The business logic, and DB connections lies in the Oracle Portal (weblogic server) ...
0
votes
0answers
208 views

Java out of memory exception when running as a non root user

I'm attempting to run apache kafka on a small basically stock digital ocean server running centos 6.6. I'm not positive if this issue is kafka specific or not. When I run kafka as the root user ...
0
votes
0answers
184 views

Tuckey UrlRewriteFilter unable to match regex with positive lookahead

This is about Turkey's UrlRewriteFilter I have a rule to convert the first segment of url to lowercase, provided that there's an uppercase letter in it. This is what it looks like: <rule> &...
0
votes
0answers
175 views

Why is GlassFish 4.1 slow on Ubuntu 15.04?

I have a GlassFish 4.1 Server instance running on Ubuntu 15.04 Desktop Edition. I use this as a development server, where NetBeans will automatically deploy my packages as I work on them, for easy &...
0
votes
0answers
764 views

Java Application has caused an InvocationTargetException in Debian

I am trying to install a Java application on a Debian 8.1 server and I keep getting a "Java Application has caused an InvocationTargetException" error. I have installed Java8 from oracle, set ...
0
votes
0answers
117 views

Is this a Windows 7 Bug Caused by the Computer's IP in the Hosts File?

Our lab uses several ruggedized military laptops in a closed-network business environment. These computers are running identical Windows 7 versions, networked with static IP's, running Apache Tomcat ...
0
votes
0answers
39 views

Sending XML Response When Maxed Allowed Connections Reached to Servlet

I have a requirement to limit the number of incoming connections, and if another connection is initiated as the limit is reached to send an XML response. This is for JBoss EAP 6, but a general ...
0
votes
0answers
2k views

Tomcat hangs at “Deploying web application directory…”

I am trying to setup Tomcat application server in an Ubuntu server. When I am trying to start tomcat server it hangs at deployment stage. If I try http://localhost:8080, its taking infinity time to ...
0
votes
0answers
62 views

tomcat https static content

We are using tomcat to serve everything over http. BUT, we have a login page which is served over https since we have them enter a password. Recently, chrome has stopped supporting serving non secure ...
0
votes
0answers
283 views

Openfire how to fix? Error creating secured outgoing session to remote server

I have a OpenBSD server 5.6, in this server install Openfire 3.9.3. But I am getting the following error: error.log 2015.02.16 08:59:44 org.jivesoftware.openfire.session.LocalOutgoingServerSession -...
0
votes
0answers
427 views

Memory usage of Postgresql and play framework

I am running a play framework application and a Postgresql server on a VPS which has 2vCores and 2GB of RAM and I'm having memory issues. I limited my play application to 1024MB with the parameter : ...
0
votes
0answers
332 views

Java client does not connect when bypassing proxy to corporate network

I am on a Windows 7 client that connects to a corporate network. We are running Pentaho Data Integration Client on the client that connects to a Pentaho DI Server that is on the corperate network. ...
0
votes
0answers
511 views

tcpdump on any interface does not support VLAN

I have tried the following command: tcpdump -i any vlan , on both Ubuntu 10.04 (kernel 2.6.32-36) and Ubuntu 12.04 (kernel 3.8.0-39) and got the following output: tcpdump: no VLAN support for data ...
0
votes
0answers
282 views

Handle many requests Web Services

I created a web service with Jersey and Tomcat in localhost. Now I want to expose my web services to all users in the world, so let's assume you have many concurrent requests. I have access to a ...
0
votes
0answers
154 views

Embedding a browser in a 32bit Java/SWT/GTK application on 64bit linux

I have created a Java Application that uses SWT 3.6 and now I want to use the browser widget on a 64bit Debian 6.0 system while using a 32bit Java JRE and the 32 bit SWT/GTK libraries. I didn't feel ...
0
votes
0answers
161 views

Preferred “Chef/Berkshelf/Vagrant” Way to Change Java Versions

On a Linux box, what's the preferred, best-practice way of switching Java versions? For example - let's say that I want to build & test out my app on Java 7, and then Java 6. Here's a few ...
0
votes
0answers
547 views

How to enable kerberos authentication to a Java web app

I'm currently using Centrify to aid with Kerberos/AD integration in our environment. Right now we have Kerberos enabled on a Centrified version of Apache. We are trying to run jnlp files through ...
0
votes
0answers
298 views

Java causing kernel panic

I'm running quite a lot of computations on Ubuntu 12.04 (3.8.0-35-generic), application is written in Java (Oracle 1.7.0_45-b18) on a server which has 12 AMD cores. Typically the computations uses 10 ...
0
votes
0answers
167 views

Apache, FCGI, and Java setup

I have a Java program that I'm trying to access through my Apache 2.4.7 webserver locally. At first I had it set up as a reverse proxy using mod_proxy_fcgi whereby I would have to start the webserver ...
0
votes
0answers
348 views

My Bitnami Tomcat Stack (on EC2 AWS) is generating DoS attack

I have a very small java web app that is deployed on a Bitnami Tomcat Stack on AWS. We are using this app in the company with only 5-10 user base daily, and generating only below 100MB of traffic per ...
0
votes
0answers
55 views

top output seems fine, yet server is overloaded

This server I am benchmarking gives no obvious signs of getting overloaded at a first glance. top output: top - 22:48:25 up 5 days, 3:41, 3 users, load average: 3.19, 3.34, 3.25 Tasks: 146 total, ...
0
votes
0answers
33 views

How to configure SMTP to recognize a group

I'm using a windows server. I installed IIS SMPT server and using it. I have no problem when I send a mail to individual id. But I get an error when trying to send to a group. InternetAddress ...
0
votes
0answers
229 views

Java daemon: “…not allowed access to the window system right now.” on boot

I have a daemon (/Library/LaunchDaemons/...) configured to launch on boot. However, I get the following error: Nov 17 20:36:24 server.local java[28972]: This user is not allowed access to the window ...
0
votes
0answers
36 views

preventing vpn multiple connections

A little background: I'm a suddenly network manager working for a small business firm. I have a little knowledge about networking details and technology. But I have a good programming background. ...
0
votes
0answers
293 views

Java applications getting squeezed via remote desktop with 16bit color depth

I am managing some virtual desktops running Windows 7 Enterprise SP1 x64. When running any Java applications (tested on 7u13, 7u21 and 7u25) the windows are getting squeezed to the left. The black ...
0
votes
0answers
211 views

Java 1.7.21 install via GPO fails on Win 8

Attempting to distribute Java runtime 7 update 21 via GPO to Windows 8. Problem is the GPO fails with: The install of application Java 7 Update 21 (64-bit) from policy Workstation 64-bit failed....
0
votes
0answers
167 views

Updating Java and Flash without bundled offerings

We have about 20 laptops with Windows Vista or 7. Most, if not all, have Java and Flash installed and those are updated through their upstream update routines, i.e. the user gets prompted that there's ...