java

Profiling Java EE1.5 or SE1.6

I'm new into Java profiling, and I'd like to ask about it. Does it make sense to profile an application on the server, where I only have the console? Is there any console profiler which make sense? Or should I profile the application only on localhost? ...

Java Outputstream behavior when multiple outputstream objects are wrapped

Hi, I have a code that does compression, encryption and checksum on a File Outputstream. Following is the code- private void start() { OutputStream os = null; try { os = new FileOutputStream("/some/file"); os = wrapAllRequiredTransforms(os); //Write to os } finally { os.close(); } } private wrap...

Apache with JBOSS using AJP (mod_jk) giving spikes in thread count.

We used Apache with JBOSS for hosting our Application, but we found some issues related to thread handling of mod_jk. Our website comes under low traffic websites and has maximum 200-300 concurrent users during our website's peak activity time. As the traffic grows (not in terms of concurrent users, but in terms of cumulative requests ...

Can I alter DateFormat.SHORT to include seconds or something similar?

Hi, In my application I am using code like this: DateFormat df = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT, locale); df.setTimeZone(User.getTimeZone()); String s = df.format(d); to format dates in an application that is used across different locales. I'd like to, sometimes, add seconds to this but I don't wan...

Bundling native dll with jar

Hi, I need to include native lib (jnotify but I think that it does't matter) to my jar. I wont to do it with NetBeans. I added Bundle-NativeCode: /lib/jnotify.dll; osname=win32 to my manifest.mf file and added jnotify.dll to projektHome\src\lib\ folder. But unfortunately NetBeans is overidning manifest.mf file. How can I fixed? Can I ...

How to fix this exception? (getting exception while sending mail from jsp program to gmail account)

UPDATE: The Code working when I use it as java program. And When I run it as jsp it gives the following exception. java.security.AccessControlException: access denied (java.security.SecurityPermission insertProvider.SunJSSE) I posted the code below. I got the following exception.How to resolve this? I already searched in google but did ...

jaxws 2.1.5 on weblogic 10.3.1 instead of pre-installed jaxws 2.1.1?

Is it possible, and when yes, how? ...

A way to catch up to modern programming techniques

I have been programming, non professionally for about 23 years and find I am a little stuck in my ways. I find a tool I like, and it stays that way for year after year. Unfortunately this means that I am behind the times in my programming. I am not directly planning on programming professionally per se, however, it is very handy to be a...

Java PriorityQueue with fixed size

Hi folks, I am calculating a large number of possible resulting combinations of an algortihm. To sort this combinations I rate them with a double value und store them in PriorityQueue. Currently, there are about 200k items in that queue which is pretty much memory intesive. Acutally, I only need lets say the best 1000 or 100 of all ite...

Network listener in Java

Hi all, I want to check when the internet goes off can i capture that event .I am not getting the proper API or any example which would explain the same . I am using socket for (TCP)communication and I open a socket when the network is available. I have observed that the socket does not give any exception in case the network goes off. ...

how to use arabic content in jasper report

hi I have tried to export jasper report with in the aracbic content through java program. I have set the locale [arabic] in jasper page and also set the locale in my java program. But i can't get the arabic data in my report. It Shows the arabic datas are ?????????????. So anybody guide me for the further steps?. Thanks in Advance Rega...

"Forked Java VM exited abnormally" error from junit tests

I have a java junit test that passes when run alone on a development machine. We also have a hudson job which runs all the tests, invoked via ant, on a Mac OS X 10.4 node with Java 1.5. The test was passing in the hudson build until recently but now (with no related code changes) one test fails everytime with the following error: Error ...

Parsing search query

Hello, I need to parse a search query with a "Google-like" syntax (but simpler, since I don't need parenthesis, operator nesting and such). An example string might be: TAG1: a,b,c TAG2: 123 TAG3: a,45,44,b So, simply put, I need to recognize tokens which look like a TAG (i.e "color", "name", "age") followed by : and by a single "word"...

how can this src vs. build tree timestamp comparison be faster? (bash)

for n in `cd src; find . -name "*.java"; cd -`; do a=`echo $n | cut -d '.' -f2`; if [[ src/$a.java -nt build/$a.class ]]; then echo src/$a.java; fi; done It lists all the java files in the src tree; then for each one, it removes the suffix ".java" (cut -d '.' -f2 because find . output is prefixed with .). It then uses -nt to ...

Axis2 WebService JMS Transport Soap Compression

Problem: I want to implement a Web Service using Axis2 with JMS Transport-In, which can process incoming soap messages with compressed content. Questions: Is this possible without additional configuration? Would it be enough for the client to just compress the message content? Background: Googling, I have found nothing regarding thi...

Running a Java Program in Grails

I've written some small programs that help me out parsing/analysing data. I want to use those programs in my grails app. Regarding my research so far, it is possible, but I don't see where I have to place my Java Code to get it running. Are there any examples available? ...

Naming and Directory (JNDI) - What are Pitfalls for Using JNDI

Naming and Directory (JNDI) - What are Pitfalls for Using JNDI ...

Using Java ApplicationModule to connect to Oracle Database

I'm working in JDeveloper and I need to connect to Oracle Database using the ApplicationModule interface. So I set up the connection, imported the table and created a view. Then I created a new ApplicationModuleImpl that connects to that view. Now, how do I get to the data through the ApplicationModule object? I read the documentation ...

Flex Spring Integration

Where should we declare the destinations and how to link applicationContext.xml and remoting-config.xml file? ...

CamelContext.start() doesn't block

Hi, I want to run a simple Apache Camel example that copies files from one directory to another: CamelContext context = new DefaultCamelContext(); context.addRoutes(new RouteBuilder() { public void configure () throws Exception { from("file://c:/fromdir/").to("file://c:/todir/"); } }); context.start(); If I run this example...