Eclipse compile and build path

Hi I'm using Eclipse to build a web application.
Java 5, Mac OS X Leopard, Eclipse j2ee build 3.3.
In my web application I've defined a servlet FooServlet that only handles requests where the url is http://localhost:8080/foo. No other servlet is mapped to this url in the deployment descriptor. The problem I'm having is that FooServlet is not on the build path, but the application runs as though it is. That is, I should be seeing a 404 error when I make a get request for this url and instead I am seeing a page produced by this servlet. I've checked the properties menu of the project and inspected the various areas of the build path, variables, external jars, libraries, etc. It's not there. I've checked the shared and common lib folders of Tomcat. Not there.
It's voodoo. I'm stumped on this one and I really appreciate any help. Thanks in advance.

where your web application is deployed? i.e. from where tomcat takes your web.xml, classes, jars, html's and jsp's?

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Ostringstream 10; hangs when compiled and build with -mt option.

I've written a very simple program to test the use of the stl class ostringstream. The program write an integer to the ostringstream object. In a multithreaded environment (compiled and build with the -mt option), that operation hangs and never returns, whilst it works fine if the program is compiled and build without the -mt option.
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#include <stdio.h>
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Do you any idea why the program hangs at buffer << 10; in a multithreaded environment ?
(I have tried to write a string instead of a integer, then it works).
Thanks a lot

Hi, I've tried your code with Solaris 7 with Forte Developer 6.2, and it seems to work fine. I get the following output:
before writing integer to ostringstream
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CC: Sun WorkShop 6 update 2 C++ 5.3 Patch 111685-03 2001/10/19
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Yshemi,
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Can you verify this ?
Can you test the built in sample to check if it works fine ?
What is the operating system that you are working on ?
Can you try by creating a new empty application, and an ejb project and let
me know the results ?
Regards,
Raj Alagumalai
WebLogic Workshop Support
"yshemu" <[email protected]> wrote in message
news:3f4eabaf$[email protected]..
>
Hi Guys,
I have created a workshop domain with the configuration wizard.
I am trying to build a simple EJB - stateless session, has one method
that returns a string.
when I try to build I get the following :
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How do I add a jar file into the build path of the compiler?

Hey,
I'm trying to import a jar file into the build path of the compilation process, but it does not find the packages or the classes that are in it.
I think I don't add it right...
 ArrayList<String> options=new ArrayList<String>();
 options.add("-d");
 options.add(targetDirectory);
 options.add("-classpath");
 for(String str:includeDirectory)
 options.add(str);
 if (!compiler.getTask(writer, fileManager, diagnostics, options, classes, compilationUnits).call());
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 for (String str : includeDirectory)
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Adam.
Edited by: Adam-Z. on Feb 24, 2010 5:41 AM
Edited by: Adam-Z. on Feb 24, 2010 5:42 AM

Thank you for your reply,
Q: Are there .class files in that directory in that jar file? (the compiler doesn't ( can't )) look for directories, it can just look for specific files , and scan to get a list of all files matching certain criteria. So if there are no class files, it will say the package doesn't exist, even if there is a directory, possibly containing other files.yes there are class files in the jar, the tree structure:
j2MeDataChunkGenerator_Plugin\(lots of class files)
META-INF\manifest.mf
and thats it.
, your code will only work on windows because other platforms use a different path separator. You should use java.io.File.pathSeparator not explicit ';" when building your classpath. (this is unrelated to your problem, but you should correct it)will do, thanks.
Q: Is that error in your post formatted by your own diagnostics? (we could possibly help you better if we didn't have to guess!!)I would not post my own error code, this text is generated by the compiler diagnostic.
{code}
 System.err.println(" Error details: " + diagnostic.getMessage(null));
{code}
Q: Is line 3 of ImageCroper_Editor.java (sic) an import statement? (we could possibly help you better if we didn't have to guess!!)it is an import error... didn't the error message stated that it is an import problem? wired, I'm sure before it did. anyway it is an import error.
Also you don't show us what the variable includeDirectory is in terms of type, and contents, that might be helpful. (we could possibly help you better if we didn't have to guess!!)It has only one String object: "D:\%Important Documents\WorkSpaces\PacMan\ApplicationManager\Plug-in\Data Chunk Designer.jar"
the last file on the classpath list.
Q: Have you proven this? that i did post, in this long line of text.
Q: Is the compiler finding other classes (in other packages) in that same jar file?No. all the class files are in the jar, they all have entries that start with "j2MeDataChunkGenerator_Plugin\*.class", and since I get 47 errors I guess it does not load any other class.
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Adam.

Generic working in eclipse compiler but not through builds

The following code snippet works fine in my eclipse development environment (1.6.0_06), but the build system running 1.6.0_06 throws exception:
MyClass:343: incompatible types
found : java.util.List<C>
required: java.util.List
entries = createListFromSmartCopy(myAList, new B(), true);
Types:
A is an interface
B is an interface of A
C is an implementation of B
List<A> aList = new ArrayList<A>();
aList.add(new A());
List return = createListFromSmartCopy(aList, new C(), true);
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public static <T extends Serializable, R extends T, S extends R> List<R> createListFromSmartCopy(
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 List<R> retr = new ArrayList<R>();
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 }Any thoughts on either:
1. How does this pass the compiler validation inside eclipse, even through 'R' has not been defined? I believe that the code is doing some sort of return type inference to return the exactly correct type of list as referred by the return result or else it is simply ignoring the invariant capture of R all together and silently dropping the error. The funny thing is that the code does work just fine in practice in my development system without an issue.
or
2. Why if the code is valid does the independent build system disallow this generic return type 'inference' to occur? Are there compiler flags I can use to withhold this special condition?

Thanks for the response, I wasn't trying to show a full example but just my implementation's snippet. I'll list one now:
package test;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
public class TestMe
 * This method performs a deep copy of an object by serializing and
 * deserialzing the object in question.
 * @param <T> - The type of data to copy
 * @param original - The original object to copy
 * @return The object who's state should be the same as the original. This
 * call uses serialization to guarantee this copy is fully separate from the
 * original, so all sub-object references are also deep copies of their
 * originals
 @SuppressWarnings("unchecked")
 public static <T extends Serializable> T clone(T original)
 T obj = null;
 try
 ByteArrayOutputStream bos = new ByteArrayOutputStream();
 ObjectOutputStream out = new ObjectOutputStream(bos);
 out.writeObject(original);
 out.flush();
 out.close();
 ObjectInputStream in = new ObjectInputStream(new ByteArrayInputStream(
 bos.toByteArray()));
 obj = (T)in.readObject();
 catch(IOException e)
 e.printStackTrace();
 catch(ClassNotFoundException cnfe)
 cnfe.printStackTrace();
 return obj;
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 * @param destination - The destination object
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 // Stubbed because it links into a ton of unnecessary methods
 * Copies the values of a list of an ancestor class into the values of
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 * @param <T> - The ancestor type of the source list
 * @param <R> - The derived type of the destination list
 * @param sourceList - The source list
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 * the reference
 public static <T, R extends T> void copyIntoList(List<T> sourceList,
 List<R> destinationList, boolean deepCopy)
 if(sourceList.size() > destinationList.size())
 throw new IllegalArgumentException(
 "Cannot copy entire source set into destination list");
 for(int i = 0; i < sourceList.size(); i++)
 copyInto(sourceList.get(i), destinationList.get(i), deepCopy);
 * Creates a copy of a list where the source list could be an ancestor
 * type of the returned list. It also uses a reference object to actually
 * construct the objects that populate the return list.
 * @param <T> - The ancestor type of the source list
 * @param <R> - The derived type of the destination list
 * @param <S> - The more derived type of the prototype object used to
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 * @param deepCopy - Deep copy serializable objects instead of just copying
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 public static <T extends Serializable, R extends T, S extends R> List<R> createListFromSmartCopy(
 List<T> sourceList, S referenceObject, boolean deepCopy)
 List<R> retr = new ArrayList<R>();
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 copyInto(sourceList.get(i), retr.get(i), deepCopy);
 return retr;
 public static void main(String[] args)
 List<A> aList = new ArrayList<A>();
 aList.add(new AImpl());
 aList.add(new AImpl());
 List bList = createListFromSmartCopy(aList, new C(), true);
 for(B bItem : bList)
 System.out.println("My String = "
 + bItem.getString() + " and my number = " + bItem.getInt());
 public static interface A extends Serializable
 public void setString(String string);
 public String getString();
 public static class AImpl implements A
 private static final long serialVersionUID = 1L;
 @Override
 public void setString(String string)
 @Override
 public String getString()
 return null;
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 public static class C implements B
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 public C()
 @Override
 public String getInt()
 return null;
 @Override
 public void setInt(int number)
 @Override
 public String getString()
 return null;
 @Override
 public void setString(String string)
}In my eclipse (20090920-1017), this compiles and runs just fine. I stripped out the functional pieces that weren't pertinent to the discussion.

Eclipse nightmare: Trying to use Build Path without muddling up the project

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codinatrix wrote:
I'm working on a team project for the first time ever, which is a little scary. We are using Subclipse. As soon as I downloaded the project, I noticed that I don't get any error warnings. Soon after, I noticed that Ctrl H fails to search the project.
I thought this was all Subclipse's fault, and tried a clumsy workaround by copying the project. I had noticed that the package icon doesn't appear for the folders holding the source files and realized this is the problem. I guess Eclipse doesn't know which files are the source files. I would have thought it could tell because they end in .java, but that shows how little I know.
After wrestling with this for hours, I figured out that I could use Build Path -> Use as source folder. For a split second, I thought I had finally solved the problem. But then all of a sudden tons of error messages showed up in every file. It turns out that when you use Build path -> Use as source folder, it moves your source folder and changes the names of the subfolders. So how on earth do I just tell Eclipse where my source files are without it moving everything around and screwing up the whole project?
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Generally speaking, here's what I would do when start a new Eclipse project from SVN using Subclipse:
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google search:
http://p2p.wrox.com/topic.asp?TOPIC_ID=4606
I had the same problem, so I can help you on that.
You need to include 2 jar files into a class path for the wsadmin.
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SET WAS_CLASSPATH=%WAS_HOME%/properties;%WAS_HOME%/lib/bootstrap.jar;%WAS_HOME%/lib/j2ee.jar;%WAS_HOME%/lib/lmproxy.jar;C:/Program Files/WebSphere/AppServer/java/jre/lib/ext/mail.jar;C:/Program Files/WebSphere/AppServer/java/jre/lib/ext/log.jar
so that includes the MAIL.JAR and LOG.JAR.
Dunno if this is same as your problem or not.

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Try googling for "eclipse servlet", surely someone has written instructions.

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Hope this helps.
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Eclipse compile and build path

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