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java.lang.NumberFormatException in db2jcc.jar

I am hitting this exception in a Java application. I extract the JAR file and try to check what is the root cause of this, but I fail to get it, because I can't debug on it.
I have the source JAR file, but every time I attach it in my workspace, it still shows me "the source attachment does not contain the source for the file ad.class".
The following is the error stack:
Caused by: java.lang.NumberFormatException: For input string: "A"
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:59)
at java.lang.Integer.parseInt(Integer.java:460)
at java.lang.Integer.parseInt(Integer.java:510)
at com.ibm.db2.jcc.c.ad.<init>(ad.java:80)
at com.ibm.db2.jcc.b.f.<init>(f.java:55)
at com.ibm.db2.jcc.b.b.ib(b.java:1760)
at com.ibm.db2.jcc.c.p.a(p.java:2490)
at com.ibm.db2.jcc.b.b.a(b.java:470)
at com.ibm.db2.jcc.b.b.<init>(b.java:264)
at com.ibm.db2.jcc.DB2Driver.connect(DB2Driver.java:163)
at org.apache.commons.dbcp.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:38)
at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:294)
at org.apache.commons.dbcp.BasicDataSource.validateConnectionFactory(BasicDataSource.java:1247)
at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1221)
at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:880)
at org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider.getConnection(InjectedDataSourceConnectionProvider.java:46)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:111)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2101)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1325)
at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:867)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:669)
at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:132)
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:225)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:308)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1477)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1417)
... 12 more
How can I debug this?

I think, the problem lies where you passed DBCP connection pool values - min count, max count etc. You have passed "A" in place of an integer.
Please check your spring context file or properties file where you provided database connection parameters.

I found the solution, its cause by the db2jcc.jar is too old for the db2 version. I found the solution here and manage to fix it.
https://www-01.ibm.com/support/docview.wss?uid=swg21625290

"A" is not a number you're probably trying to insert a string value into a variable or array that only allows numbers, make sure you declare your variables and arrays correctly. If your put atention in the error you are tryingtry put a String value into integer. I hope you can solved your error with my help pass a good day

How can I get all configuration with the same value for the property "company.server"?

I am new to Apache Commons Configuration and got stuck. I have a growing number of servers, on each server a number of apps are running. Each app represents an installation for a specific customer.
For simplicity reason I shrink here the configuration example here to this. How can I get all the configurations that are related to, for example, server01 (see XML below)?
XML configuration file
Properties configs = mCombinedConfig.getProperties("company.server");
When my codes executes the getProperties statement I get an IllegalArgumentException:
Exception in thread "main" java.lang.IllegalArgumentException: 'server01' does not contain an equals sign
at org.apache.commons.configuration2.AbstractConfiguration.getProperties(AbstractConfiguration.java:1165)
at org.apache.commons.configuration2.AbstractConfiguration.getProperties(AbstractConfiguration.java:1119)
at com.atoss.alm.helpertemp.CommonsConfigurationExample.json(CommonsConfigurationExample.java:138)
at com.atoss.alm.helpertemp.CommonsConfigurationExample.main(Unknown Source)
What is wrong with the getProperties statement?

Reading R-Errors through JRI

i'm using JRI, to talk to R through Java. If i try to get the result of my R-Code as Double i get a NullPointer. Normally this is caused by an error of R. Is it possible to get the output of the R-Console into Java in order to read the error?

Ok. Here is what I did, to solve the problem.
because my REngine is a singleton i was able to perform those R-Expressions, after the creation:
re.eval("log<-file('"+filepath+"')");
re.eval("sink(log, append=TRUE)");
re.eval("sink(log, append=TRUE, type='message')");
this codes writes every R-Output into the file specified by the String filepath. For non-singletons i would recommend to extend the REngine...

Java : Help Regarding Exception Report with server Logs

i am fairly new in java and currently working in Struts 1.3. My question is more related with java.
Following is the scenario and i am not sure regarding the best approach to be followed.
I want to make a error reporting functionality in my project where in I'm copying stacktrace and inserting it in the database's table say "errorlog" table with type of exception,date, user etc and other fields. But now what i have to do is :
I have to identify the package name, file, method and line number in which the exception occurred with the help of server logs that i have when exception occurs.
But the problem is that the log gives you the exception, file and the line number but it also contains errors that are not in my packages as in HttpServlet.service(HttpServlet.java:710) etc given below:
java.lang.NullPointerException
com.candidate.query.CandSearchAction.execute(CandSearchAction.java:34)
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
org.apache.struts.action.RequestProcessor.proc ess(RequestProcessor.java:274)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
In above case, i got a null pointer exception in my CandSearchAction.java line number 34.
Now i want to know how to differentiate or extract only the line that points to my java/jsp file, so that i can filter them accordingly.
Can anyone please help regarding this situation or how to approach this problem.. is there any library that i can use or anything that could help me.
Waiting for a response that would help me.

If your code follows the same basic structure you used in your example, you could parse the stack trace for anything starting with 1 of your package names and only use those lines.

Java Play Mustache NPE Error

We are getting a mustache play error in production (amazon linux EC2 AMI) but not in development (MACs) and we have tried upgrading the jvm, using the jdk instead, and changing from a tomcat deploy model to match our development environments as much as possible but nothing is working. Please any help would be greatly appreciated. We have lots of shared code in java and javascript using mustache and it would be a big deal to rewrite everything if we had to ditch mustache on the java side.
20:48:52,403 ERROR ~
#6al2dd0po
Internal Server Error (500) for request GET /mystuff/people
Execution exception (In {module:mustache-0.2}/app/play/modules/mustache/MustacheTags.java around line 32)
NullPointerException occured : null
play.exceptions.JavaExecutionException
at play.templates.BaseTemplate.throwException(BaseTemplate.java:90)
at play.templates.GroovyTemplate.internalRender(GroovyTemplate.java:257)
at play.templates.Template.render(Template.java:26)
at play.templates.GroovyTemplate.render(GroovyTemplate.java:187)
at play.mvc.results.RenderTemplate.<init>(RenderTemplate.java:24)
at play.mvc.Controller.renderTemplate(Controller.java:660)
at play.mvc.Controller.renderTemplate(Controller.java:640)
at play.mvc.Controller.render(Controller.java:695)
at controllers.MyStuff.people(MyStuff.java:183)
at play.mvc.ActionInvoker.invokeWithContinuation(ActionInvoker.java:548)
at play.mvc.ActionInvoker.invoke(ActionInvoker.java:502)
at play.mvc.ActionInvoker.invokeControllerMethod(ActionInvoker.java:478)
at play.mvc.ActionInvoker.invokeControllerMethod(ActionInvoker.java:473)
at play.mvc.ActionInvoker.invoke(ActionInvoker.java:161)
at Invocation.HTTP Request(Play!)
Caused by: java.lang.NullPointerException
at play.modules.mustache.MustacheTags._template(MustacheTags.java:32)
at play.modules.mustache.MustacheTags$_template.call(Unknown Source)
at /app/views/User/people.html.(line:22)
at play.templates.GroovyTemplate.internalRender(GroovyTemplate.java:232)
... 13 more

Seems the issue is with the threadlocal. In Prod as per my logs, the session gets initialized with the main thread.
[2012-06-30 18:35:38,102] INFO 10097[**main**] - Mustache module initialized
However, MustacheTag tries to access with various thread like this during request.
[2012-06-30 17:48:44,669] INFO 66048[**play-thread-1**] - [{module:mustache-0.2}/app/play/modules/mustache/MustacheTags.java:46] _meta() :: MustachePlugin.session():null
So I changed the implementation of MustachePlugin like this.Changed line commented out:
//private static ThreadLocal<MustacheSession> session_ = new ThreadLocal<MustacheSession>();
private static MustacheSession _session = null;
public static MustacheSession session(){
//return session_.get();
return _session;
}
public void onConfigurationRead(){
// some code
_session = new MustacheSession(compiler, root);
// some code
}
And it is working fine now in prod mode! I see no reason why it should have been in a ThreadLocal in the first place as the session gets initialized at startup!

your issue is difficult to reproduce so i'll give few pointers here. you have tried to eliminate of issue being env issue. so other possible issues could be
data issue: many times reason for production issue is usually difference in actual data and test data. check if its data issue which is casuing NPE.
code issue: Is there something at people.html.(line:22) causing issue. first try removing / altering that to check if thats causing issue. Or can you get source code of mustache (exact version which you are using) and see what object its trying to create and where its failing.
Properties file for different environments: do you have different proprties file for each env? If yes, have u missed on any property for prod env?

You have a NullPointerException on MustacheTags.java at line 32.
This means that you are probably calling a method of the Mustache library and passing a null value.
Try logging all the parameters you transfer to this method (MyStuff.java line 183?).
You can look at the source code of MustacheTags here, it might help you understand what values you are passing and what should be passed.