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

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-4
votes
0answers
23 views

Trying to ping the comps in my block. Just curious and trying to see if I can get it to work [on hold]

Trying to Ping People in my IP block. What am I doing wrong? FOR /L %i IN (1,1,255) DO ( ping -n 1 68.235.169.i | find "TTL=" >nul if errorlevel 1 ( echo host not reachable ) else ( echo ...
0
votes
0answers
13 views

Building failsafe system [on hold]

As an assignment I have to realize failsafe webserver using Virtual machine. I have been trying it using a separate java program on host to monitor heartbeat of the vm and redirecting the http ...
0
votes
0answers
26 views

TOP processes by system time

I have a system running 2 processes - MySQL and Java I'm seeing 20-30% of the time spent in %system. I've looked around to try and find a way to identify which what the balance of the system time is ...
-1
votes
0answers
25 views

telnet: Unable to connect to remote host: Connection timed out

I have configured apache james in an ec2 instance, after that I created users and then I tried to telnet to that server on port 25 using telnet direct.XXX.XXX 25 from my localhost, I am able to ...
0
votes
0answers
13 views

Slowness in constructor of com.mongodb.Response and com.mongodb.DefaultDBDecoder:decode

I'm developing an app and I use mongo to store my data. I have mongo replica set from 5 nodes, I use read preference = true. Also I have good hardware configuration under mongo hosts, but don't use ...
7
votes
4answers
193 views

How to convince my Administrator that Java ON A SERVER is not insecure per se?

The Application We have a small Java application which uses some Camel routes to pick up uploaded files from a webserver, process them and send out some e-mails with the results. The server on which ...
0
votes
0answers
17 views

Upgrading to Java 7u65 breaks my Deployment Rule Set for Oracle applications

My company uses an older version of an Oracle application that requires Java 6u45. Naturally we want to be secure, so we use a Deployment Rule Set to specify 6u45 for that internal application and let ...
0
votes
2answers
26 views

Changing process priority in linux for jvm process

Is it fine if I change the JVM process priority through nice at server machine [linux]. I wanted my JVM process to use maximum resources from OS. What is the standard practice? Do people tune the ...
-1
votes
0answers
23 views

High data on recv-q buffer and thread lock on java.io.BufferedInputStream in linux [on hold]

We have a java application running on linux (ubuntu server). We have been facing high recv-q problem since quite some time. Application gets hang and does not read data from socket every few hours. ...
0
votes
1answer
34 views

Prevent APT from overwriting custom files

My server runs a Java application that requires I replace a few java library files with ones I downloaded on my own. This has to do with JCE security extensions and isn't really relevant to my ...
1
vote
0answers
23 views

DRS: Unknown JNLP Location

We are using Deployment Rule Sets to limit access to the older JRE to well-known applications but are running into a problem. One business critical applications has the following properties (*s to ...
0
votes
1answer
50 views

RHEL Java Application returns “No space left on device” but only 3% used [duplicate]

My Java Application returns following Exception when saving a new file in /opt/wso2 on a CentOS 6.4: Caused by java.io.FileNotFoundException: ... (No space left on device) Caused by: ...
0
votes
1answer
9 views

504 error crash on openshift

I have deployed a java application in openshift. I am using bronze plan. My application is a scaled application and also uses 4GB of memeory. I got an 504 error crash two or more times in a day. ...
0
votes
0answers
16 views

401 Unauthorized response from java webservice

I am getting the 401 Unauthorized response while I am calling java webservice (JAX-WS) from C# client ,It was working on my development environment but not working on production server. I can access ...
3
votes
2answers
439 views

Why is Wireshark not capturing certain POST requests?

If I use this filter in Wireshark: http.request.method == "POST" and use the vote buttons to vote for a stack exchange question, then Wireshark captures the corresponding POST request. I can also see ...
0
votes
0answers
36 views

CouchBase Client Fails to Cache Object less than 20mb. Time Out Error

I am caching my serialized POJO s(4mb-8mb size objects) concurrently into Couchbase server with CouchBase client (couchbase-client-1.4.3). for(upto 20 itertarions){ new Thread().start().. ...
0
votes
2answers
25 views

Java Deployment Ruleset not working

I've created a Java Deployment Ruleset that looks like this: <ruleset version="1.0+"> <rule> <id location="http://hpfweb.mydomain.com/" /> <action ...
0
votes
0answers
41 views

java.lang.ClassNotFoundException: org.postgres.Driver when starting PuppetDB

When I start puppetdb I am getting the following error: cat /var/log/puppetdb/puppetdb.log 2014-08-06 11:29:50,558 ERROR [main] [utils.logging] Uncaught exception java.lang.ClassNotFoundException: ...
0
votes
0answers
13 views

Openshift - Cannot connect to mysql with Java [migrated]

I am Harold and Im new in Openshift, Im using below code to connect to MySQL with java through example here https://www.openshift.com/forums/openshift/no-suitable-driver-found-error, Unfortunately, ...
0
votes
1answer
25 views

Nginx: index mapping

I'm trying to install Nging as a frontend server for HTTP requests but the welcome page does not work: server { listen 8081; server_name localhost; root ...
0
votes
0answers
46 views

Set JAVA_HOME is not working

I'm trying to set JAVA_HOME in CentOS 6.5 by editing the file ~/.bash_profile and adding this line at end: PATH=$PATH:$HOME/bin export PATH export ...
0
votes
0answers
22 views

Glassfish-3.0.1 mixing user sessions - SSO

We are experiencing a strange behaviour, we have an application (jsf 2.2.4 embedded) that has a login form, glassfish has sso enabled and a custom realm (LDAP). We have also several applications (some ...
0
votes
0answers
16 views

Tomcat breaks encoding of uploaded file in CP1250

I have a Java web application which processes uploaded files in different encodings. When I run this app on Tomcat 7 installed on my Windows PC and I upload a file encoded in CP1250, everything works ...
-3
votes
1answer
27 views

debian - using apache virtual host as proxy [duplicate]

I have a server with debian 7.4 and apache2 installed. I have setup virtual hosts and all works well. Now instead of pointing the virtual host to a documentroot I need it to point to a port on the ...
0
votes
0answers
16 views

Using Java DRS with JNLP files

I am working on creating a DRS (http://docs.oracle.com/javase/7/docs/technotes/guides/jweb/security/deployment_rules.html) for a corporate environment. Currently the organization is using JRE6U26, ...
0
votes
0answers
27 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 ...
2
votes
1answer
50 views

How to replicate Memcache data among servers

A same question in SO can be found from here . But since I couldn't find any suitable answer, I am asking with additional info. I have many memcache clients but all of them access one memcache server ...
0
votes
2answers
48 views

Multiple java versions

I have a server running rhel5 and jre 1.6. All my apps are running perfectly for now. But I want to install java 1.7 but keeping java 1.6 as the default so my running apps want be affected. If I want ...
1
vote
0answers
67 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 ...
0
votes
1answer
21 views

Strange behavour of which in a shell script launched as a forked process

So I have a java process that is doing some automation. One of the things it has to do is find the JDK home on random machines. So I wrote a shell script to try and find the JDK home assuming that ...
1
vote
0answers
36 views

Tomcat 8 with Apache, Configure Several Java & WordPress Domains

** PROBLEM SUMMARY ** I think the subject line defines my question pretty well, but I'm going to give an example of my current and goal setup for clarification. Considering the sheer number of ...
-1
votes
2answers
80 views

CENTOS Vs Windows 2008 R2

We have an application running on Windows Server 2008 R2 with Apache WAMP, Tomcat, Mysql, PHP and java SE for last 4 years. Its a Web based ERP application. I would like to know if it makes sense to ...
3
votes
0answers
147 views

Signing a Java Deployment Rule Set JAR using AD Certificate Services

I am tasked with deploying Java 7 Update 55 along with a Java Deployment Rule Set to all Active Directory Windows clients. I've managed to get a solid Java software deployment setup but I'm now ...
1
vote
1answer
33 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. ...
4
votes
1answer
56 views

How to determine the Java version needed for different versions of DRACs

We have two different server machines in our workplace, they are: Dell - PowerEdge T620 - runs drac 7 (ver 1.35.35) Dell - PowerEdge 2950 - runs drac 5 (ver 1.65) Is it possible for me to ...
1
vote
1answer
66 views

can't get tomcat to offer TLS_ECDHE_ECDSA_… ciphers

my tomcat (7.0.52) Connector is configured with a cipher list like ciphers="TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, ...
0
votes
0answers
47 views

Tomcat 7 went <defunct>, cannot kill the process. What might be the cause?

I was running tomcat7 production server for several days, and then suddenly it was unreachable by the http port. Strangely though, the background processes were still running as can be seen by the ...
1
vote
0answers
131 views

Tomcat Memory - Setting in setenv.sh not respected

I have Tomcat 7.0.35 on CentOS. I have configured setenv.sh to have the following: export JAVA_OPTS="-Dfile.encoding=UTF-8 -Xms128m -Xmx1024m -XX:PermSize=256m -XX:MaxPermSize=512m" However under ...
0
votes
1answer
49 views

How to prevent a specific request to redirect from http to https in SSL configuration?

I am facing one issue regarding ssl. Basically i want to stop redirection of only one request from http to https in Jboss 7. According to the requirement all http request should be redirected to ...
0
votes
0answers
28 views

How do I change Jboss' logging directory

I'm running jboss-as 7.2. I'm trying to configure all log files to go to /var/log/jboss-as but only the console log is going there. I'm using the init.d script provided with the package and it calls ...
0
votes
0answers
48 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 ...
3
votes
1answer
189 views

Java applets not starting in IE on Windows Server 2008 R2

I can't get the Java ActiveX Add-on to work on a Remote Desktop Server 2008 R2 with Desktop Experience enabled. This is what I get after enabling compatibility mode from http://www.java.com/verify : ...
0
votes
0answers
43 views

lxc - java out of memory issues

I have a set of virtual machines on lxc container that run Ubuntu 14.04. All share same host and some of them are currently experiencing problems with java. Running java -version throws OutOfMemmory ...
0
votes
2answers
47 views

FTP to multiple servers using one domain without load balancing

So i'm looking into how to allow users to FTP into different servers just through one domain such as ftp.mysite.com. Each of the servers will be unique in a manner of speaking, running their own ...
1
vote
0answers
16 views

JRE fragmentation and solutions

In my environment, we have several web based applications that leverage Java for various web components. The issue is, each one of these applications requiring a different jre version. We are always ...
0
votes
1answer
201 views

Tomcat & Java not listening on IPv6

We've got a webserver running Ubuntu 12.04 LTS, Tomcat 7 and Oracle Java. So far, we have been serving a web app on IPv4 address on ports 80 and 443 (80 redirects to 443). I'm trying to make the ...
0
votes
1answer
105 views

Jetty JMX setup for remote access

I am having some issues getting JMX working on Jetty(9.1.3.v20140225), so I have had a read over the Jetty doco on this. So I have added the following to the jetty.conf # ...
0
votes
1answer
120 views

Solr: Using multiple SQL server data sources results in error: “…\sqljdbc_auth.dll already loaded in another classloader”

I have one Solr instance running in Jetty with JRE 8 with 3 collections (same as cores, yes?) and more to come. I am indexing data from SQL Server, connecting using NTLM as the identity of the Java ...
0
votes
0answers
70 views

XenServer Console

I just follow this tutorial to access XenServer Console. I can run the first example, and it's working fine, but for the second example it's not working. I cannot access to console with a java ...
3
votes
2answers
140 views

After kill -9 process won't disappear and port is still bound

We have a Java server application running on Mac OS X. Occasionally this application has become unresponsive, and we have resorted to killing it with kill -9. However, the process doesn't disappear; ...