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

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0
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22 views

How to add a datasource in wildfly swarm with .war packaging?

I'm trying to run my web application using Wildfly Swarm and .war packaging. How should i add my jdbc driver and data source definition?
2
votes
2answers
3k views

TCP Window Size going to 0 / Wget stops downloading?

I have a somewhat complex setup that doesn't work, and I'm struggeling quite a bit to track down the root cause. First of all the big picture: Node backend is a medium size windows azure worker role ...
0
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0answers
5 views

Enable Java Caching for a specific site

In our environment our users utilize many 3rd party Java applications. The majority of these applets require caching to be disabled within Java but there are a couple of applets that need to have ...
0
votes
1answer
13 views

Wowza SSL error PR_END_OF_FILE_ERROR

I have installed the SSL certificate by following https://www.wowza.com/forums/content.php?128-How-to-request-an-SSL-certificate-from-a-certificate-authority The certificate was imported properly ...
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0answers
16 views

Deploying Java application on Tomcat 7 with Context Versioning

I am working on an API that is built on top of the Spark mini-framework (http://sparkjava.com/) Whenever I build a package through Maven, which is then uploaded to the webapps/ folder under Tomcat 7. ...
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votes
1answer
17 views

WebSphere 7.0 Admin Console - Web Services

I've been trying to search on Google (and IBM's documentation) to find the answer to this, and I haven't found anything. Either my search skills aren't that great today, or my assumption is correct ...
0
votes
0answers
25 views

Puppet Server throwing load module error on `/etc/init.d/puppetserver start`

Getting the following error one a clean yum install of puppet LoadError: no such file to load -- jar-dependencies require at org/jruby/RubyKernel.java:1072 (root) at ...
48
votes
7answers
98k views

Top - what does Virtual memory size mean? …linux/ubuntu

I am running top to monitor my server performance and 2 of my java processes show virtual memory of up to 800MB-1GB. Is that a bad thing? What does virtual memory mean? And oh btw, I have swap of ...
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votes
1answer
10 views

Java process thread details

I'd like to get the details like name, running time, etc. of threads of a Java process on a production VM, similar to the info that VisualVM shows in the Threads tab. Unfortunately, VisualVM won't run ...
0
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0answers
21 views

Linux screen(or java) with different date of system

I having a problem with screen on Centos 7. The system time is correct but on screen application theres a diference of 3 hours. The system output(correct): [root@Server ~]# date Ter Fev 23 01:27:11 ...
8
votes
1answer
92 views

How do I build a Linux environment that specifies specific versions of packages?

I am creating a dockerfile that runs a custom application that is tied to a specific version of Java. I'm using a centos7 base image because that's what an article I was referring to was using and ...
0
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0answers
20 views

How can you fairly split CPU between multiple JVMs running on a single SmartOS server?

I currently run an app within Tomcat but want to deploy Play Framework on the same servers as well. For licensing reasons, this is cost efficient, but being able to use excess CPU usage on a beefier ...
0
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0answers
28 views

Mysql and HAproxy

Our java application hosting on jboss was connected directly to mysql server and it was working fine.As per new requirement HAProxy has been placed in front of MYSQL Server,It works but after few ...
1
vote
0answers
225 views

Windows Server 2012 R2 IE Refuses to Load Java Plugin

We have a Windows Server 2012 R2 machine that we're using as a Remote Desktop Services server for our employees. It has the "RemoteApp" feature set up so that everybody can run our pre-configured ...
2
votes
3answers
375 views

Install Oracle Java JRE 7 on Ubuntu with just the command line

I can't use openjdk because it doesn't have native .jpg support. I can't use sudo apt-get install sun-java6-jre sun-java6-plugin any more because apparently those have been pulled. JRE version 7 ...
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votes
2answers
601 views

Local Proxy tool which authenticates against NTLM, sits on top of the Java VM and possibly transparently passes through HTTPS requests [closed]

I'm looking for a local HTTP proxy which I can run locally on my machine. This proxy accepts HTTP and HTTPS request and passes them upstream on to an external corporate proxy. The local proxy needs to ...
1
vote
0answers
17 views

How to create a headless JDK on Ubuntu

I want to have a headless JDK on Ubuntu 14.04. As discussed in the question “How can I install a headless JDK on an Ubuntu Jaunty server?”, one option is to create my own jdk-headless package. I have ...
0
votes
0answers
5 views

How do I sandbox build code in bamboo?

I am thinking of setting up a build server (bamboo) for an open source project. That means the code executed on build time (java) is not under my control. I will run the server as it's own user but ...
0
votes
0answers
12 views

Separated Java EE and PHP APIs running in the same machine and sharing the same SQL database general workaround

Having in mind the Java EE and the PHP APIs are completely separated (this is not about using java processes from PHP or PHP processes from java) and they will only share the database, is there any ...
1
vote
1answer
66 views

Monitor java application memory inside Cloud Foundry

I have a Java application that I'm deploying inside a Cloud Foundry environment. I want to monitor the application's memory usage. Cloud Foundry provides the cf app command that produces output ...
0
votes
0answers
38 views

Jetbrains team products + out of memory

I am trying to build an Ubuntu server 15.10 VM with all the software tooling required for software development. When I saw that Jetbrains offers various tools like: hub, youtrack, teamcity and ...
1
vote
0answers
63 views

Nagios check_jstat

I'm trying to monitor java memory usage using nagios nrpe features. So I download and install check_jstat and install the plugin on the remote server. And when I ran it below is the result: OK: jstat ...
1
vote
0answers
91 views

Java application is slow in virtual server (KVM)

I have a Java web application, which runs from JAR, starts embedded Tomcat and is using Spring Boot. Problem is that it runs very slow when running in KVM virtual guest. The same application in the ...
0
votes
0answers
23 views

Deploying a SOS WAR file gives me a 404 Status Code on Tomcat?

I am trying to deploy a SOS WAR file from 52 north into the Tomcat, I put this WAR file in the webapps folder, but I got a 404 Status code, and I don't know how to solve this problem now. Is there ...
0
votes
1answer
28 views

why is nodetool (cassandra single node) throwing NameNotFoundException: 'jmxrmi'?

Ubuntu 14.04 3.19.0-30-generic running cassandra 3.0.2. and oracle java version "1.8.0_72" i can see the port listening: 127.0.0.1:7199 0.0.0.0:* LISTEN 26048/java ...
0
votes
0answers
126 views

Cannot connect with slave from Jenkins master. Connection broken

I have setup one Jenkins Master (CentOS 7), and one node on which my project is running (dev environment, Windows 7). My project requirement is Java 1.6. On my Windows 7 and Java 1.7 machine, I can ...
0
votes
0answers
27 views

Working with docker image on an oracle virtual box [closed]

I downloaded the docker application and installed it on my Windows machine. After the installation, I tried to access the boot2docker application to work with the docker. But, it wasn't work in the ...
0
votes
0answers
48 views

RDS RemoteApp with Java

I am attempting to put together a small RDSH farm to deliver a front-end which requires Java. The front end is a simple VB executable which displays a predefined java-driven web front end. Now, my ...
0
votes
1answer
19 views

YouTrack java process started to disappear on VPS

I had YouTrack installed on my VPS, and lately it just stopped working. Installation method I used is described here: ...
1
vote
0answers
48 views

CISCO SSL VPN Apps fail to connect using Java 8 update 71 (Java 8u71)

A remote client uses the SSL VPN apps for port forwarding through an ASA 5505 firewall. Basically no traffic was able to traverse the port forwarded IP addresses. Using the web browser in the VPN ...
0
votes
1answer
47 views

Configure Database Properties for Tomcat Webapp

I setup a sample application in Tomcat but have trouble getting the database connection working. It is a standard WAR package written in Spring framework and uses a MySQL database. The application is ...
-1
votes
1answer
224 views

how to solve SVN Commit Issue: forbidden by server

When I tried to commit my code using Eclipse. I got the following error: org.apache.subversion.javahl.ClientException: The operation is forbidden by the server svn: Commit failed (details follow): ...
1
vote
1answer
543 views

Deploying web services on a RHEL 5 box using Apache/Tomcat/Axis/Java

I am new to the Web services scene. I currently have access to a RHEL5 box and i need to deploy a java web service on it. It runs apache and i know this because i have a website hosted on this ...
1
vote
1answer
1k views

Unable to connect to remoteJMX but able to Telnet on same port after setting Dcom.sun.management.jmxremote environment variables?

I am rather perplexed at this point as we have a need to connect through remotejxm to monitor the JDK on a server through a monitoring application but I am repeatedly being told when trying to connect ...
0
votes
0answers
57 views

WildFly 9.0.2 javax.net.ssl.SSLException: Error generating ECDH server key exchange

I have a problem with SSL connection negotiation in WildFly 9.0.2 The problem is when client is trying to connect to HTTPS listener the server responds ssl_error_internal_error_alert, while in log ...
1
vote
2answers
2k views

Java application server behind IIS 7.5 on Windows Server 2008

I have a Java application server (GlassFish, indeed, but the problem is the same for any other application server, I guess), running on port 8080. And I have IIS 7.5 listening on port 80 as by default ...
0
votes
1answer
1k views

java 7: should users be aware of changes in heap memory handling?

After installing the latest Java 7 Development Kit (Java SE 7u11) on my Windows 7 Professional 32bit PC with 4Gb RAM, I noticed I can't allocate much memory for Tomcat. Whereas these memory settings ...
1
vote
3answers
1k views

Httpd process consuming loads of memory

I have a server which is giving me headaches. It hosts a couple of sites: these are either php based, or java based. I have a setup that uses apache2 + suPhp for the php sites, and apache2 + mod_proxy ...
1
vote
1answer
3k views

ORA-12505, TNS:listener does not currently know of SID after changing port number

I am trying to change oracle tnslsnr port number from default to some other port. After I change port number for tnslsnr from 1521 to 2000 I start geting ORA-12505, TNS:listener does not currently ...
4
votes
2answers
651 views

What are the best practices for monitoring and alerting for low level JVM metrics?

I'm looking to set up monitoring and alerting for java server based app and want to find some best practices for monitoring JVM specific metrics and for designing alerts based on those metrics. So ...
0
votes
0answers
15 views

How to update an application within an AWS autoscaling group?

We have 8 to 12 servers in our mico-service auto scaling group. We build jar files for our application. Now after building the jar file and uploading it to the Artifactory, how do we get it on all 8 ...
1
vote
0answers
43 views

NginX with GeoIP - what is returned for geo code when no mapping is found?

As the tests I conducted (using Java API to read GeoIP.dat, as well as local test) might be insufficient, I was wondering what happens on NginX when geo-ip module is configured, and when no IP to ...
0
votes
0answers
41 views

EJB Remoting Auto Scaling in AWS

I'm currently in the process of figuring out how to migrate a Java EE Middleware application from a single static server to a Load Balanced Wildfly Cluster in AWS (with an Auto Scaling Group behing an ...
0
votes
1answer
58 views

Azure Web Apps With Java, MySql, Filesystem

Some background is I currently have a VM deployed on Azure. On the VM I have 3 java web applications running on a Tomcat server. Each are integrated in some way or another. They all run on the same ...
-1
votes
1answer
35 views

Trying to find some really old versions of software [closed]

I am currently trying to track down some old versions of Adobe Flash, Adobe Acrobat 9, Adobe Reader XI and Java Runtime Environment so that a Windows 2012R2 server can run a piece of [redacted] ...
0
votes
1answer
93 views

Linux: How to configure TCP wrappers in /etc/hosts.allow for manually started processes?

An internal server in the company I work for has been compromised and I would like to harden CentOS machines in the organization in order to avoid any future incidents so I've been reading about ...
1
vote
0answers
64 views

Java keystore: How to import the ca certificates correctly?

We have renewed the certificate of one of our server (apache httpd). For a webservice interface (for mobile clients) we need the certificate also on tomcat, means: stored in a java keystore. We have ...
3
votes
1answer
93 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 ...
2
votes
0answers
494 views

Using TLS 1.2 and java 6

We have a legacy web application that runs in a tomcat under java 6 - an upgrade to 7 or 8 is currently infeasible. We now have a requirement to connect, as a client, over TLS 1.2 however java 6 only ...
0
votes
0answers
94 views

error when trying to connect via websocket to the server on Openshift

My Web-socket server and client are written in Java. When I used a JavaScript web-socket client to connect, there was no issue. When I switched to Java web-socket client, I got the following errors: ...