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

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4
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76 views

How do companies handle the need for different Java requirements on the same user?

In our company, we use GPOs to push software updates such as Java updates. We have about 150 users in different offices located in different countries, all using Windows 7. We have a few ...
4
votes
0answers
1k views

Testing NTLM\kerberos against a public url

I am creating a java open source package that makes it easy to connect with httpclient 3.1 to resources that are protected by ntlm v1/v2 and kerberos. I need to test this tool against real world ...
3
votes
0answers
98 views

Sophos firewall default settings do not allow HTTPS from Java 6 clients

Our current (default) Sophos firewall (Apache reverse proxy) settings does not allow Java 6 clients to connect over HTTPS. The ssltest result shows that the reason is "Client does not support DH ...
3
votes
0answers
2k views

Unable to change vm.max_map_count for elasticsearch

Prehistory I have elasticsearch and SugarCRM7 running on CentOS 6.5. Every day I face the same problem: java outOfMemory error. That happens because of small vm.max_map_count value, 65530 only when ...
3
votes
0answers
145 views

mod_ssl client certificates on a reverse proxy

I am trying to add client certificate authentication on a reverse proxy that proxies an oracle application. Before adding, and if i remove the subsequent code, the oracle application is able to start ...
3
votes
0answers
4k 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
0answers
598 views

Automatic updating of newer JRE on GNU/Linux

How can a GNU/Linux machine be set up to automatically update a newer version of the Java Runtime Environment (JRE)? The difficulty is wanting to use a newer version of Java (Java 7, at present) and ...
2
votes
0answers
14 views

Running Jenkins Slaves on old operating systems

I have a (quite old) Jenkins installation that I'd like to upgrade. Unfortunately, some jobs require to be built on an old operating system which cannot run Java 7 and hence cannot run the slave.jar ...
2
votes
0answers
607 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 ...
2
votes
0answers
206 views

Generation of Tomcat Stdout and Stderr log files

Is there a way to catch tomcat stdout and tomcat stderr log files it to log4j or any other way so that i can keep track daily basis.These files are only generated when we restart tomcat.And i want ...
2
votes
0answers
719 views

Maven - resolving “java.security.cert.CertPathValidatorException: Path does not chain with any of the trust anchors”

I am attempting to build/install this project on an Ubuntu 12.04 box: https://bitbucket.org/petermr/pdf2svg However: mvn clean install Fails to build due to getting errors like this: ...
2
votes
0answers
101 views

Trying to deploy Confluence on Glassfish 4

So I'm trying to deploy Confluence as a WAR on Glassfish 4 (Using Oracle JDK 7). The WAR deploys just fine except I get the following errors when trying to load the page in my browser: Could not load ...
2
votes
0answers
795 views

Tuning Tomcat 7 on windows (for Alfresco)

I have installed Tomcat7 as a service on a windows server 64bit 2008 R2 to run Alfresco (4.2.c). I have 48G of ram. I have read Tomcat tuning tutorial with the JVM settings for memory. To edit the ...
2
votes
0answers
66 views

Scaling large numbers of small customer J2EE webapps

We're allowing customers to create websites on our SaaS app. We currently use Jetty as the app server, but we could use anything J2EE. I'd like to be able to scale customer webapps across our ...
2
votes
0answers
437 views

How to apply tzdata-java update after installing package

Updated the following packages via YUM on the system (CentOS 5 64bit) tzdata-2012j-2.el5 tzdata-java-2012j-2.el5 The system package was applied correctly but the Java does not appear to be working ...
2
votes
0answers
200 views

Elasticsearch and couchdb river indexing slows down after a few hours

Trying to import ~400m docs in to Elasticsearch from couchdb using the couchdb river plugin. Everything starts out great with indexing time around 5k/s but after a few hours come back and find its ...
2
votes
0answers
1k views

java crashes with Illegal memory access. [54]

I'm using java on OEL 5.8 and it crashes in some applications with "Illegal memory access. [54] error". It occurs with 3 different java installations. 2 of them are Jrockit versions ...
2
votes
0answers
181 views

Apache 2.2 - CSS and JS not loading on first request

I am not a network administrator and have very least knowledge of deploying Java Web Application on Apache 2.2 with ssl configured. So please ignore any wrong interpretation in the question. We are ...
2
votes
0answers
327 views

virtual memory commited

After a server bounce happens, and after around 40-45 days time period, we receive continuous “Committed Virtual Memory” alerts which indicates the usage of swap space in the magnitude of >4GB This ...
2
votes
0answers
348 views

How to use JMAP with Tomcat when Tomcat is running as a service?

I want to grab some memory snapshots of a Tomcat instance in production. This is on a Windows 2008 server. I can run JMAP against Tomcat when I start it with startup.bat but the client is using ...
2
votes
0answers
168 views

How to create KeyStorePass in server.password In jboss

I am using Jboss4.2.2 configuration for Configured Identity with Password Based Encryption (PBE) can you any one tell me about what is use of server.password ,and how to creaed it. ...
2
votes
0answers
138 views

ColdFusion 10 Servlet Issues

I'm currently experiencing problems with ColdFusion finding my servlet. In ColdFusion 9, I would simply put it under the wwwroot/WEB-INF/classes/ directory and ColdFusion would serve when requested. ...
2
votes
0answers
320 views

Java seems to ignore global “update” setting in registry

I have installed JRE 1.7.0_04-b22. I disabled the "update" setting in administrator - update requests disappeared, but in ordinary user's account it is nagging me about updates and I can't turn it ...
2
votes
0answers
502 views

Installation of SSL certificates onto stand-alone ActiveMQ failing

I am trying to get SSL working on ActiveMQ but keep running into the error: SSL received a record that exceeded the maximum permissible length. (Error code: ssl_error_rx_record_too_long) I am ...
2
votes
0answers
945 views

Uninstall Glassfish and metro completely

I thought of updating my Glassfish server from 2.1 to 3.1.1 in a Linux machine. I downloaded the .ZIP package. However during uninstalling of Glassfish v2.1 I did not find the uninstall.sh file in ...
2
votes
0answers
632 views

In tomcat, how to redirect console output of the web apps to logfile?

I am running Tomcat 7 inside Netbeans in windows. Is there any way of redirecting System.out.println to log file? Right now I'm getting it on my console. Is there any way I can change the logging ...
2
votes
0answers
581 views

I keep getting an IPMI error when doing console redirection

I did have the remote management portion of IPMI working locally and externally but it is now giving me an "Usage: java RConsoleApp <Aster Card IP> <Port>" error message. This is a Tyan ...
1
vote
0answers
18 views

AWS Elastic Beanstalk Instance - debugging low CPU but high memory usage

I'm running a small t1.micro instance on Amazon Elastic Beanstalk. The app itself is a Java web server, uploaded via a .war file, that responds to requests from a remote Heroku web app. Upon ...
1
vote
0answers
64 views

Deployment of Java8u77 removes static installation of Java6u45

I'm using the free version of PDQ Deploy to deploy Java updates on client computers in a domain, using the executable installers, NOT the extracted MSI. According to the Oracle documentation, there ...
1
vote
0answers
24 views

Run Java Mission Control as a daemon, and activate alerts?

I would like to use Java Mission Control (JMC) to monitor a java application I have that will expose certain information via JMX. In JMC it is possible to setup alerts to trigger when certain ...
1
vote
0answers
262 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 ...
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 ...
1
vote
0answers
70 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
112 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 ...
1
vote
0answers
55 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 ...
1
vote
0answers
49 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 ...
1
vote
0answers
72 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 ...
1
vote
0answers
344 views

Cannot get a java app to run/start as a service using systemd

I am trying to get a java app(server) to start as a service using systemd on my Centos 7 but it always fails. this is my push.service [Unit] Description=b4xpush server After=syslog.target ...
1
vote
0answers
31 views

No progress inTomcat7 after Deploying web application directory in linux

Hi I am new to linux environment. Initially we had all the application working on a virtual machine. Due to some reasons we did not used it for a while. So after a long gap when we try to check that ...
1
vote
0answers
40 views

Can't access Rest Api written in Java which is hosted in Windows Server 2012 (Azure)

I Can't access Rest Api calls written in Java which is hosted in Windows Server 2012 (Azure) in apache server. Within the virtual machine i can access through fiddler/browser and get the data. But ...
1
vote
0answers
59 views

How to use java UDF on AWS Oracle RDS?

I am trying to use a java udf in AWS Oracle RDS. On a managed Oracle server I can do this by using something like the following: CALL dbms_java.loadjava('-user <username>/<password> ...
1
vote
0answers
18 views

Java Webapp on Tomcat6 using libservlet3

I am quite new to all this Java stuff. I Installed a bunch of War-Packed Webapps on a Ubuntu Machine with tomcat6. One of them does not work (skos-play), apparently because it needs libservlet3 and ...
1
vote
0answers
369 views

Set up 'tomcat' non-root user in Tomcat 8

I've installed Tomcat 8 in Debian 8 and I need to harden the web server. I'm following the official Tomcat documentation guide and in the security considerations section recommends to create another ...
1
vote
0answers
284 views

elasticsearch glibc memory corruption

My elastic search clusters keep crashing for no reason. All I can see in the logs is : INFO | jvm 4 | 2015/04/17 19:10:09 | *** glibc detected *** /usr/java/jre1.7.0_04/bin/java: malloc(): ...
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0answers
29 views

Solr 503 when using boost function

I have three environments which are set up to use Solr: local, staging and production. The local configuration differs slightly to the staging/production however the other two are identical. I ...
1
vote
0answers
354 views

Disabled SSLv3 in Tomcat, but Still Showing POODLE Vulnerability

I have a Windows 2008 server with Tomcat 7.0.59 & Java 8u31 & I am trying to ensure that SSLv3 is disabled. Looking at the changelog for Java, SSL3 should no longer be supported and the Java ...
1
vote
0answers
154 views

Taking a thread dump on IBM J9 takes a long time

I'm trying to collect a java core on AIX (java version 1.6). There is only one dump agent configured, which collects a system dump, heap dump and java core on every SIGQUIT, so I used HealthCenter to ...
1
vote
0answers
80 views

HP Radio Port 210 web configuration

We acquired used WiFi system to provide better wlan for the customers in our hostel. The switch is HP PROCURVE 5406zl and we have 50 or so HP PROCURVE RADIO PORT 210 access points. I set up the ...
1
vote
0answers
3k views

Add an entire domain to Java Exception list

I'm administering hundreds of machines with Java interfaces that I sometimes need to get into. Unfortunately, the default Java settings in Windows block all of these applications from running, ...
1
vote
0answers
222 views

jrun ssl peer not authenticated

Before I start, I should say that I've already posted this question at Code Ranch, and have not yet gotten an answer. I'll make sure both this site and Code Ranch receive the answer should I find ...