Java parser api...

Hi all,
i am in need of a java api that should parse java .class, jar and other java files.
Also it should compares old and new version of the java application in offline mode
and gives changed,new and deleted classes and methods...
thanks in advance...

Please elaborate 'parse' in your sentence. This sounds very odd. Don't you mean 'decompile'?
About the versioning: what about a version control system of the source code, like CVS?
http://www.google.com/search?q=java+version+control
http://www.google.com/search?q=java+source+control

Similar Messages

Save Attachment from exchange server 2010 from oracle using java mail API

Hello,
I want to read email from microsoft exchangeserver 2010 and save attachement into a folder.I created an Java program to import attachments from a exchange server mailbox using "POP3S".It works fine when run as a java application.But when i put this inside Oracle11g R2 using load java and while executing from a procedure it gives an error at parsing message into Multipart
Error at line : Multipart mp = (Multipart)m.getContent();
Error:
Content-Type: multipart/mixed;
boundary="_002_A0C2E09A..................................."
java.lang.ClassCastException
at mailPop3.checkmail(mailPop3:71)
My Java Class is as follows,
import java.io.*;
import java.util.Properties;
import javax.mail.*;
import javax.mail.internet.*;
import java.util.Date;
The function i used to check for attachments is given below.
public static boolean hasAttachments(Message m) throws java.io.IOException, MessagingException
Boolean hasAttachments = false;
try
// if it is a plain/html text - no attachements
if (m.isMimeType("text/*"))
return hasAttachments;
else if (m.isMimeType("multipart/alternative"))
return hasAttachments;
else if (m.isMimeType("multipart/*"))
Multipart mp = (Multipart)m.getContent();
if (mp.getCount() > 1)
hasAttachments = true;
return hasAttachments;
catch (Exception e) {
e.printStackTrace();
} finally {
return hasAttachments;
My Java Details as follows
java Version :1.5.0_10
java.vm.specification.version:1.0
java.vm.version :1.5.0_01
java.specification.version:1.5
java.class.version:48.0
Java mail API:javamail-1.4.4
Used Jars:mail.jar
Could someone explain why I am getting this error? What can I do to resolve this error?
Is any other Jar need other than mail.jar?
Any help would be much appreciated.
Regards,
Nisanth

Hai EJP,
Thanks for your reply,
My full java class as follows,
import java.util.Properties;
import javax.mail.Authenticator;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Store;
import javax.mail.Part;
import javax.mail.Multipart;
import javax.mail.internet.MimeMultipart;
import javax.mail.internet.MimeMessage;
public class Newmail
public Newmail()
super();
public static int mailPOP3(String phost,
String pusername,
String ppassword)
Folder inbox =null;
Store store =null;
int result = 1;
try
String host=phost;
final String username=pusername;
final String password=ppassword;
System.out.println("Authenticator");
Authenticator auth=new Authenticator()
protected PasswordAuthentication getPasswordAuthentication()
return new PasswordAuthentication(username, password);
System.out.println("Certificate");
String filename="D:\\Certi\\jssecacerts";
String password2 = "changeit";
System.setProperty("javax.net.ssl.trustStore",filename);
System.setProperty("javax.net.ssl.trustStorePassword",password2);
Properties props = System.getProperties();
System.out.println("host-----"+props);
props.setProperty("mail.pop3s.port", "993");
props.setProperty("mail.pop3s.starttls.enable","true");
props.setProperty("mail.pop3s.ssl.trust", "*");
Session session = Session.getInstance(props,auth);
session.setDebug(true);
store = session.getStore("pop3s");
System.out.println("store------"+store);
store.connect(host,username,password);
System.out.println("Connected...");
inbox = store.getDefaultFolder().getFolder("INBOX");
inbox.open(Folder.READ_ONLY);
Message[] msgs = inbox.getMessages();
System.out.println("msgs.length-----"+msgs.length);
result = 0;
int no_of_messages = msgs.length;
for ( int i=0; i < no_of_messages; i++)
System.out.println("msgs.count-----"+i);
System.out.println("Attachment....>"+msgs.getContentType());
Multipart mp = (Multipart)msgs[i].getContent();
System.out.println("Casting Success" + mp.getContentType());
catch(Exception e)
e.printStackTrace();
finally
try
if(inbox!=null)
inbox.close(false);
if(store!=null)
store.close();
return result;
catch(Exception e)
e.printStackTrace();
return result;
Please check it
Regards,
Nisanth

Problem using Java Mail API with WLS 7.0

Hi All,
I am trying to use the Java Mail API provided by WLS 7.0. I have made the
settings metioned in the WLS 7.0 docs. However when I try to run the program I
am getting the following error:
javax.naming.NoInitialContextException: Need to specify class name in environment
or system property, or as an applet parameter, or in an application resource file:
java.naming.factory.initial
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:6
46)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:246
at javax.naming.InitialContext.getURLOrDefaultInitCtx(InitialContext.jav
a:283)
at javax.naming.InitialContext.lookup(InitialContext.java:350)
The code that I have written is as follows
import java.util.*;
import javax.activation.*;
import javax.mail.*;
import javax.mail.internet.*;
import javax.naming.*;
import java.io.*;
import java.net.InetAddress;
import java.util.Properties;
import java.util.Date;
public class MailTo {
     public static void main(String args[])
          try
               //Context ic = getInitialContext();
               InitialContext ic = new InitialContext();
/* My jndi name is "testSession" */
               Session session = (Session) ic.lookup("testSession"); /* THE PROBLEM IS SHOWN
IN THIS LINE */
               Properties props = new Properties();
               props.put("mail.transport.protocol", "smtp");
               props.put("mail.smtp.host", "XX.XX.XX.XX");
/* For security reasons I have written the ip add in this format */
               props.put("mail.from", "[email protected]"); /* for security reasons i have
changed the mail address */
               Session session2 = session.getInstance(props);
               Message msg = new MimeMessage(session2);
               msg.setFrom();
               msg.setRecipients(Message.RecipientType.TO, InternetAddress.parse("[email protected]",
false));
               msg.setSubject("Test Message");
               msg.setSentDate(new Date());
               MimeBodyPart mbp = new MimeBodyPart();
               mbp.setText("This is a mail sent to you using JAVA Mail API and Weblogic Server");
               Multipart mp = new MimeMultipart();
               mp.addBodyPart(mbp);
               msg.setContent(mp);
               Transport.send(msg);
          catch(Exception e)
               e.printStackTrace();
     }//end of main
public static Context getInitialContext()
     throws NamingException
          Properties p = new Properties();
          p.put(Context.INITIAL_CONTEXT_FACTORY, "weblogic.jndi.WLInitialContextFactory");
          p.put(Context.PROVIDER_URL, "t3://localhost:7501/testWebApp");
               p.put(Context.SECURITY_PRINCIPAL, "weblogic");
               p.put(Context.SECURITY_CREDENTIALS, "weblogic");
          return new InitialContext(p);
}//end of class
Can anyone please tell me what is the problem. I thought that we cannot directly
do
InitialContext ic = new InitialContext();
So I had written a method getInitialContext() as shown in the above piece of code,
but that too did not work.
Eagerly awaiting a response.
Jimmy Shah

You can use InitialContext ic = new InitialContext() only if you are using a startup class, servlet or a JSP i.e
server side code.
If you are using a java client you need to use Context ic = getInitialContext();
Try this code
import java.util.*;
import javax.activation.*;
import javax.mail.*;
import javax.mail.internet.*;
import javax.naming.*;
import java.io.*;
import java.net.InetAddress;
import java.util.Properties;
import java.util.Date;
public class MailTo {
public static void main(String args[])
try {
Properties h = new Properties();
h.put(Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.WLInitialContextFactory");
h.put(Context.PROVIDER_URL, "t3://localhost:7001");
Context ic = new InitialContext(h);
Session session = (Session) ic.lookup("testSession");
Properties props = new Properties();
props.put("mail.transport.protocol", "smtp");
props.put("mail.smtp.host", "XX.XX.XX.XX");
props.put("mail.from", "[email protected]");
Session session2 = session.getInstance(props);
Message msg = new MimeMessage(session2);
msg.setFrom();
msg.setRecipients(Message.RecipientType.TO,InternetAddress.parse("[email protected]",false));
msg.setSubject("Test Message");
msg.setSentDate(new Date());
MimeBodyPart mbp = new MimeBodyPart();
mbp.setText("This is a mail sent to you using JAVA Mail API and Weblogic Server");
Multipart mp = new MimeMultipart();
mp.addBodyPart(mbp);
msg.setContent(mp);
Transport.send(msg);
catch(Exception e)
e.printStackTrace();
}//end of main
}//end of class
We have shipped a javamail example in the samples\server\src\examples\javamail folder.
Jimmy Shah wrote:
Hi All,
I am trying to use the Java Mail API provided by WLS 7.0. I have made the
settings metioned in the WLS 7.0 docs. However when I try to run the program I
am getting the following error:
javax.naming.NoInitialContextException: Need to specify class name in environment
or system property, or as an applet parameter, or in an application resource file:
java.naming.factory.initial
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:6
46)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:246
at javax.naming.InitialContext.getURLOrDefaultInitCtx(InitialContext.jav
a:283)
at javax.naming.InitialContext.lookup(InitialContext.java:350)
The code that I have written is as follows
import java.util.*;
import javax.activation.*;
import javax.mail.*;
import javax.mail.internet.*;
import javax.naming.*;
import java.io.*;
import java.net.InetAddress;
import java.util.Properties;
import java.util.Date;
public class MailTo {
public static void main(String args[])
try
//Context ic = getInitialContext();
InitialContext ic = new InitialContext();
/* My jndi name is "testSession" */
Session session = (Session) ic.lookup("testSession"); /* THE PROBLEM IS SHOWN
IN THIS LINE */
Properties props = new Properties();
props.put("mail.transport.protocol", "smtp");
props.put("mail.smtp.host", "XX.XX.XX.XX");
/* For security reasons I have written the ip add in this format */
props.put("mail.from", "[email protected]"); /* for security reasons i have
changed the mail address */
Session session2 = session.getInstance(props);
Message msg = new MimeMessage(session2);
msg.setFrom();
msg.setRecipients(Message.RecipientType.TO, InternetAddress.parse("[email protected]",
false));
msg.setSubject("Test Message");
msg.setSentDate(new Date());
MimeBodyPart mbp = new MimeBodyPart();
mbp.setText("This is a mail sent to you using JAVA Mail API and Weblogic Server");
Multipart mp = new MimeMultipart();
mp.addBodyPart(mbp);
msg.setContent(mp);
Transport.send(msg);
catch(Exception e)
e.printStackTrace();
}//end of main
public static Context getInitialContext()
throws NamingException
Properties p = new Properties();
p.put(Context.INITIAL_CONTEXT_FACTORY, "weblogic.jndi.WLInitialContextFactory");
p.put(Context.PROVIDER_URL, "t3://localhost:7501/testWebApp");
p.put(Context.SECURITY_PRINCIPAL, "weblogic");
p.put(Context.SECURITY_CREDENTIALS, "weblogic");
return new InitialContext(p);
}//end of class
Can anyone please tell me what is the problem. I thought that we cannot directly
do
InitialContext ic = new InitialContext();
So I had written a method getInitialContext() as shown in the above piece of code,
but that too did not work.
Eagerly awaiting a response.
Jimmy Shah--
Rajesh Mirchandani
Developer Relations Engineer
BEA Support

Java 8: Pb with new java.time api

Hello,
I'm trying to use the new java.time api that comes with Java 8 (I already know joda-time).
I'm using the latest build B124.
I've a String "01/08/2012_00:00:01", I know that the time ref. is UTC, and I want to convert it to an 'Instant';
I tried:
DateTimeFormatter FORMAT_DT = DateTimeFormatter.ofPattern("dd/MM/yyyy_HH:mm:ss").withZone(ZoneOffset.UTC);
Instant instant = Instant.from(FORMAT_DT.parse("01/08/2012_00:00:01"));
But it fails with following error:
java.time.DateTimeException: Unable to obtain Instant from TemporalAccessor: {},ISO resolved to 2012-08-01T00:00:01 of type java.time.format.Parsed
at java.time.Instant.from(Unknown Source)
I don't understand what's wrong with my code, and I can't figure out how I should proceed to convert the String to an Instant ...
Any suggestion welcome,
Best regards,
Bernard.

Originally you stated this:
I don't understand what's wrong with my code,
So naturally we focused on how to "understand what's wrong' with your code.
You will never learn to troubleshoot problems if you just throw your hands up in the air and ask for help just because a complex series of steps doesn't complete successfully.
Break the process into its individual steps and check the results of each step to identify which step is FIRST producing an error.
When a complex or multi-step process has an error you start checking the individual steps of the process to see how far it gets successfully.
I would expect that converting a String to an Instant should be a basic/simple need, so it should be possible to do it in two lines of code; for the time being, the only way I found is to use a LocalDateTime intermediate variable, which seems quite verbose, and I'm wondering if someone knows a better way to do it, and would be willing to share it here.
Just a technical distinction: your latest example using a LocalDateTime intermediate variable CAN be done in one line of code by just using dot-notation to avoid creating an explicit intermediate variable. But that variable will still be created implicitly behind the scenes.
Converting a String to an Instant might be considered a basic/simple need but the set of functionality related to dealing with times, dates, calendars, etc is extremely complex. It makes much more sense to develop the requisite functionality in modules.
Especially when introducing new functionality such as the 'Instant' class are related package elements introduced in 1.8. That functionality builds on what came before and parsers already existing that know how to deal with all of the possible String variants and formatting options and so on.
Since that work CAN BE done on-the-fly using dot notation and anonymous implicit intermediate classes there isn't much need to reinvent that functionality in the new classes. If certain uses become standard new methods can always be added (e.g. to the Instant class) that will 'appear' to do things in one step.
And, being an early adopter release, you can always file a 'bug' or enhancement request from the 1.8 download page. That page has links for 'Report Bugs' and 'Feedback forum' that you can use.
In this current forum no one can give you an 'official' answer as to why something was implemented a particular way and/or whether that implementation is a 'bug' or was designed to work that way. Only Oracle can do that.

Problem getting calendar event with recurring using EWS Java client API 1.2

I am using EWS 1.2 Java client API for getting calendar events. I am able to get Recurring information of the event which is created through API's
appointment.save(), but not able to get recurring information of the event created in OWA interface, I get following error during the bind:
===================================
Exception: Connection not established
microsoft.exchange.webservices.data.EWSHttpException: Connection not established
at microsoft.exchange.webservices.data.HttpClientWebRequest.throwIfConnIsNull(HttpClientWebRequest.java:394)
at microsoft.exchange.webservices.data.HttpClientWebRequest.getResponseHeaders(HttpClientWebRequest.java:280)
at microsoft.exchange.webservices.data.ExchangeServiceBase.processHttpResponseHeaders(ExchangeServiceBase.java:1045)
at microsoft.exchange.webservices.data.SimpleServiceRequestBase.internalExecute(SimpleServiceRequestBase.java:58)
at microsoft.exchange.webservices.data.MultiResponseServiceRequest.execute(MultiResponseServiceRequest.java:144)
at microsoft.exchange.webservices.data.ExchangeService.internalBindToItems(ExchangeService.java:1364)
at microsoft.exchange.webservices.data.ExchangeService.bindToItem(ExchangeService.java:1407)
at microsoft.exchange.webservices.data.ExchangeService.bindToItem(ExchangeService.java:1430)
at microsoft.exchange.webservices.data.Appointment.bind(Appointment.java:70)
at microsoft.exchange.webservices.data.Appointment.bindToRecurringMaster(Appointment.java:176)
at microsoft.exchange.webservices.data.Appointment.bindToRecurringMaster(Appointment.java:152)
============================
This happens if I use: Appointment.bindToRecurringMaster or Item.bind(service, id, appointmentProps) or findAppointments().
Works fine for events which doesn't have recurring. Only issue with events containing recurrence created through OWA. These are the propertySet:
new PropertySet(BasePropertySet.IdOnly,
ItemSchema.Subject,
AppointmentSchema.AppointmentType,
AppointmentSchema.DeletedOccurrences,
AppointmentSchema.FirstOccurrence,
AppointmentSchema.LastOccurrence,
AppointmentSchema.IsRecurring,
AppointmentSchema.Location,
AppointmentSchema.ModifiedOccurrences,
AppointmentSchema.OriginalStart,
AppointmentSchema.Recurrence,
AppointmentSchema.Start,
AppointmentSchema.End);
If I remove Recurrence it gives the response.
Thanks.

I am using EWS 1.2 Java client API for getting calendar events. I am able to get Recurring information of the event which is created through API's
appointment.save(), but not able to get recurring information of the event created in OWA interface, I get following error during the bind:
===================================
Exception: Connection not established
microsoft.exchange.webservices.data.EWSHttpException: Connection not established
at microsoft.exchange.webservices.data.HttpClientWebRequest.throwIfConnIsNull(HttpClientWebRequest.java:394)
at microsoft.exchange.webservices.data.HttpClientWebRequest.getResponseHeaders(HttpClientWebRequest.java:280)
at microsoft.exchange.webservices.data.ExchangeServiceBase.processHttpResponseHeaders(ExchangeServiceBase.java:1045)
at microsoft.exchange.webservices.data.SimpleServiceRequestBase.internalExecute(SimpleServiceRequestBase.java:58)
at microsoft.exchange.webservices.data.MultiResponseServiceRequest.execute(MultiResponseServiceRequest.java:144)
at microsoft.exchange.webservices.data.ExchangeService.internalBindToItems(ExchangeService.java:1364)
at microsoft.exchange.webservices.data.ExchangeService.bindToItem(ExchangeService.java:1407)
at microsoft.exchange.webservices.data.ExchangeService.bindToItem(ExchangeService.java:1430)
at microsoft.exchange.webservices.data.Appointment.bind(Appointment.java:70)
at microsoft.exchange.webservices.data.Appointment.bindToRecurringMaster(Appointment.java:176)
at microsoft.exchange.webservices.data.Appointment.bindToRecurringMaster(Appointment.java:152)
============================
This happens if I use: Appointment.bindToRecurringMaster or Item.bind(service, id, appointmentProps) or findAppointments().
Works fine for events which doesn't have recurring. Only issue with events containing recurrence created through OWA. These are the propertySet:
new PropertySet(BasePropertySet.IdOnly,
ItemSchema.Subject,
AppointmentSchema.AppointmentType,
AppointmentSchema.DeletedOccurrences,
AppointmentSchema.FirstOccurrence,
AppointmentSchema.LastOccurrence,
AppointmentSchema.IsRecurring,
AppointmentSchema.Location,
AppointmentSchema.ModifiedOccurrences,
AppointmentSchema.OriginalStart,
AppointmentSchema.Recurrence,
AppointmentSchema.Start,
AppointmentSchema.End);
If I remove Recurrence it gives the response.
Thanks.
I am also facing the same problem.. If anyone can help, it would be helpful. I can see the response xml has the data, but while parsing the xml the error is generated in getResponseCode() in HttpClientWebRequest

Java mail api - sending mails to gmail account

Hello
I am using java mail api to send mails.when i send mails to gmail from ids which are not in gmail friends list, most of the mails are going to spam.Ofcourse, some of them go to inbox.I tried in lot of ways to analyse the problem.But nothing could help. Can anyone plzz tell me how to avoid mails going to spam in gmail, using java mail api?
Thank you in advance,
Regards,
Aradhana
Message was edited by:
Aradhana

am using the below code.
Properties props = System.getProperties();
//          Setup mail server
          props.put("mail.smtp.host", smtpHost);
          props.put("mail.smtp.port","25");
          props.put("mail.smtp.auth", isAuth);
     Authenticator auth = new UserAuthenticator();
//          Get session
          Session s = Session.getDefaultInstance(props,auth);
//          Define message
          Message m = new MimeMessage(s);
//          setting message attributes
          try {
               m.setRecipient(Message.RecipientType.TO, new InternetAddress(to));
               InternetAddress f_addr=new InternetAddress(from);
               f_addr.setPersonal(personalName);
               m.setFrom(f_addr);
               m.setSubject(subject);
               m.setSentDate(new Date());
               m.setContent(msg,"text/plain");
               m.saveChanges();
//               send message
               Transport.send(m);
Message was edited by:
Aradhana

Performance issue with Business Objects Java JRC API in CRXI R2 version

A report is developed using java JRC API in CR XI release 2. When I generate the report in the designer, it took less than 5 seconds to display the results in crystal report viewer inside the designer. But in the QA environment, when I generate the same report from the application, it takes almost 1 to 1.5 minutes to display the same results in PDF. I also noticed that if the dataset contains bigger volume of data, then the reports are taking even longer almost 15 to 20 minutes.
While generating the report from the application, I noticed that most of time is taken during the execution of the com.crystaldecisions.report.web.viewer.ReportExportControl Object method as shown in following line of code
exportControl.processHttpRequest(request, response, context, null)
We thought the delay in exporting the report to PDF might be the layout of the report and data conversion to PDF for such a bigger volume of data.
Then we investigated the issue and experimented quickly to generate the same report with same result set data from the application using XML, XSL and converted the output XSL-FO to PDF using Apache FOP (Formatting Objects Processor) implementation. The time taken to export the report to PDF is less than 6 seconds. By doing this experiment, it is proved that the issue is not with conversion of data to PDF but it is the performance problem with Business Objects Java JRC API in CR XI R2.
In this regard, I searched for the above issue in the SAP community Network Forums -> Crystal Reports and Xcelsius -> Java Development -> Crystal Reports. But I did not find any answers or solutions for this kind of issue in the forums.
Any suggestion, hint in this matter is very much appreciated.

Ted, The setReportAppServer problem is resolved. Now I could able to generate the report with hardcoded values in the SQLs in just 6 seconds where as the same report was generated in CRXI R2 in 1 minute 15 seconds as mentioned in the earlier message.
But, our exisiting application passes the parameter values to the SQLs embedded in the report. For some reason the parameters are not being passed to the report and the report displays only the labels without data.
As per the crj 12 samples codes, the code is written as shown below.
1. Created ReportClient Document
2. SetReportAppServer
3. Open the report
4. Getting DatabaseController and switching the database connection at runtime
5. Then setting the parameters as detailed below
ParameteFields parameterFieldController = reportClientDoc.getDataDefController().getParameterFieldController();
parameterFieldController.setCurrentValue("", "paramname",paramvalue);
parameterFieldController.setCurrentValue("", "paramname",paramavalue);
byteArrayInputStream = (ByteArrayInputStream)reportClientDoc.getPrintOutputController().export(ReportExportFormat.PDF);
6. Streaming the report to the browser
Why the parematers are not being passed to the report? Do I need to follow the order of setting these parameters? Did I miss any line of code for setting Params using crj 12?
Any help in this regard would be greatly appreciated.

How can i access gmail's smtp server using java mail api

i m using java mail api to access gmails pop and smtp service to receive and send mail from ur gmail account. I m able to access gmails pop server using the ssl and port 995 , but i can not use its smtp server to which i m connecting using ssl on 465 port. It requires authentication code.
if anybody can help me in this regard i m thnkful to him/her.
thnks in advance.
jogin desai

Here's an example of using SSL + Authentication
http://onesearch.sun.com/search/onesearch/index.jsp?qt=ssl+authentication&subCat=siteforumid%3Ajava43&site=dev&dftab=siteforumid%3Ajava43&chooseCat=javaall&col=developer-forums

How to print a document in reverse order using Java Print API ?

I need to print a document in reverse order using Java Print API (*Reverse Order Printing*)
Does Java Print API supports reverse order printing ?
Thnks.,

deepak_c3 wrote:
Thanks for the info.,
where should the page number n-1-i be returned ?
Which method implementation of Pageable interface should return the page number ?w.r.t. your first question: don't return that number but return page n-1-i when page i is requested; your document will be printed in reverse order. Your class should implement the entire interface and wrap the original Pageable. (for that number n your class can consult the wrapped interface; read the API for the Pageable interface).
kind regards,
Jos

Looking for a Java Parser

Hi,
I'm working on a Web Service Project, and i'm trying to deploy Web Services dynamically. Now the problem is, that i have to adapt the Java src-files sometimes before the deployment (Like adding Annotations, Methods or just peaces of code into a Method. So what i'm looking for is some Sort of a Java Parser, that gives me information on where to insert the code i generated.
Simple example:
public class WSExample{
     public void doSomething(){
          //do something
//this class should be changed to something like this:
public class WSExample{
     @WebMethod       //Annotation added
     public void doSomething(){
          //do something
        //this Method is generated automatically
        @WebMethod
        public void doSomethingDifferent{
               //like establishing a connection to a different WS
}All i've found up to now are parser generators like antlr or javacc. But i couldn't find anything about how to use the generated parsers or even manipulate the parsed code, yet. I hope i don't have to write a parser or grammar myself. Maybe someone can link me to some useful tutorial, forum or whatever else might be helpful.

If you are using Sun's Java 1.4, you already have one. If you are using an ealier version, here are a couple of links:
Xerces is probably the most feature rich:
http://xml.apache.org/xerces2-j/index.html
GNU JAXP is also good and very small:
http://www.gnu.org/software/classpathx/jaxp/

Error while sending mail when using Java Mail API

Hi Experts,
I am trying to execute a webdynpro application which uses the Java Mail API to send emails. The exception that I get on executing the application is :
Sending failed; nested exception is: javax.mail.SendFailedException: Invalid Addresses; nested exception is: javax.mail.SendFailedException: 550 5.7.1 Unable to relay for [email protected]
Can anybody please help me sort out the issue.
Regards
Abdullah

Hi,
Usually one get this error if the SMTP server is configured not to relay mails (a security measure) or the SMTP server need the mail to be sent from a trusted IP or with proper authentication. Some SMTP servers are configured to block junk mails.
Pls check with your mail server administrator.
Regards

Java Persistence API and creation of databases

Hi All
I have designed a small address book application which uses a database to store the information. I have used the new Java Persistence API to take care of my transactions and querrys with the database. This works great for one set database which is generated the first time the application runs and is used all the time.
However I would like to make it so that the user can create a new address book (database) with a different name, I am not sure how I would do this using the Java Persistence API. I know the persistence.xml file must be placed in the META-INF directory of the source, so how would I be able manipulate the file or could I place the file somewhere else.
David

I am using the Derby database. I can create a database by passing the create command when I create the entity Manager like so:
Connection c = DriverManager.getConnection("jdbc:derby:AddressBook;create=true", "app", "app");My problem is that as I understand it the persistence.xml file must know the name of the database. Unless there is another way of setting this. The line in the persistence file I am referring to is:
<property name="toplink.jdbc.url" value="jdbc:derby:AddressBook"/>I wonder if I can progamatically set this value so that I have a default database in the persistence.xml and others can then create there own.
David

Read Attachments using Java Mapping API

Hello,
after investigating the Java Mapping API a little deeper I found some very interesting Interfaces "InputAttachments" and "Attachments" which could do exactly what is required:
Reading attachments and convert them into base64 code.
As I am not an experienced Java Programmer howeve, I am note sure how to use those interfaces.
For example there is a method defined in interface "InputAttachments":
Attachment getAttachment(String contentID)
How do I use it? If I use it in a way like "InputAttachments.getAttachment("abc");" then I get the error that it is not a static method. However how do I instantiate "InputAttachments".? As it is an interface I am not sure how to do this.
Any idea how to handle these methods?

Hi,
I am working on the similar. I am able to attach txt files and csv files but have trouble attaching xcel and pdf's. Any input is appreciated. Thanks

(Java Base API / JNI ) in tomcat

Hi All,
(this is a question I asked on the 'C-API' forum but I got no answer. I hope I'll have more success here )
I'm trying to access a database built with the C-API from a tomcat/glassfish server using the Java native API. (I need to read data produced with the C API)
I put the Environment in the application context so all user will share the same instance of the database.
first question: is it a good idea ? What would be the best practice ? can I safely use this application in a multithreaded environment ?
The problem was that the 'System.loadLibrary' method is called each time my application is re-deployed: so an exception was thrown !! (library already loaded) because the server has already loaded the db library in a previous deployment. To solve the problem I put a silent 'try... catch...' around this System.loadLibrary in the source code of com/sleepycat/db/internal/db_javaJNI.java
2nd question: is there a way to avoid this hack ?
Thank you for any answer
Pierre

The JE team does not know the answer to your question, but will see if we can find redirect it to someone who might know.

How to use the build-in Java parser

Hi All,
I want do use the build-in Java parser. Is this possible? For example I have the following code:
package ch.fhnw;
import javax.tools.*;
public class JavacExample {
     * @param args
    public static void main(String[] args) {
     JavaCompiler javac = ToolProvider.getSystemJavaCompiler();
     String arguments = "./src/ch/fhnw/JavacExample.java";
     int rc = javac.run(null , null, null, "-verbose", arguments);
     System.out.println("Return value: " + rc);
}After parsing, it would be great to have an object or similar which contains the methods, arguments used by the methods, etc. The target is to extract method declarations from java files. Is there a simple way to do it without defining my own EBNF like in JavaCC? Or any other way?
Thank you for your help.
kind regards,
wolfgang

Yep. bootstrap your knowledge here
[http://java.sun.com/javase/6/docs/technotes/guides/javac/index.html]
[http://forum.java.sun.com/forum.jspa?forumID=514]
Bruce

Java parser api...

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