Ant or what tool to compile Java Classes

For the past year I have been using Windows command window to compile Java Classes for my Servlets, Java Beans and Helper classes. I use Cold Fusion studio as my IDE for creating the Java classes. All of my Web Applications use MVC for Forms feeding small databases and I only have around 7 to 10 class files per Web application.
Should I start to use Ant and/or what is recommended so I can keep up with current technology instead of using Windows Command Window to compile my Java classes?

Try the following link.
https://www.sdn.sap.com/irj/sdn/downloaditem?rid=/library/uuid/cfc19866-0401-0010-35b2-dc8158247fb6
The download in the above link has NWDS and portal as well. Unzip the file and install NWDS studio.

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Suffering an complie error when trying to compile java class in EBS11i

Hi,
When I trying to compile java classes with which imported the HttpServletResponse class, will get the follow error message:
package javax.servlet does not exist
cannot resolve symbol
symbol : class HttpServletResponse
It seems the javax.servlet package is not included in the classpath. But I checked the $CLASSPATH, it seems no problem.
echo $CLASSPATH
/u02/applvis/viscomn/util/java/1.4/j2sdk1.4.2_04/lib/tools.jar:/u02/applvis/viscomn/util/java/1.4/j2sdk1.4.2_04/lib/dt.jar:/u02/applvis/viscomn/util/java/1.4/j2sdk1.4.2_04/jre/lib/charsets.jar:/u02/applvis/viscomn/util/java/1.4/j2sdk1.4.2_04/jre/lib/rt.jar:/u02/applvis/viscomn/java/appsborg2.zip:/u02/applvis/visora/8.0.6/forms60/java:/u02/applvis/viscomn/java
Does anyone know the reason?
environment: ebs 11i
Thanks&Regards,
Xiaofeng

resolved this issue.
1. Edit $APPL_TOP/admin/adovars.env file -
Add the following jar files to the AF_CLASSPATH line -
Full path of /...../iAS/Apache/Jsdk/lib/jsdk.jar
Full path of /...../iAS/Apache/Jserv/libexec/ApacheJServ.jar
2. Bounce the concurrent manager in order to have the changes take effect.

Dynamically Create and Compile Java Classes

Hi,
I have a requirement to dynamically create and compile Java classes and would like some advice on the best method to do so.
Basically the project I am working on involves creating "Factors". Factors are items that have both attributes and weights so for example Factor A could have attribute B with weight 0.76, and attribute C with weight 1.33. There are a number of methods common to all factors such as calculateTotal, identify etc etc.
At the moment the application has 5 factors, but there is a requirement to dynamically add and remove factors on the fly.
I current solution I have been considering is using XML to describe the new class, build up the class and compile it; something along the lines of what is descibed at
http://www.javaworld.com/javaworld/jw-02-2002/jw-0201-xslt_p.html
however i would like to consider all options.
Any help with this is greatly appreciated.

You want to dynamically create and compile Java classes.
I would try the following:
(1) Write the Source code of the new class into a text file with the name MyNewClass.java
(2) compile this new .java-file with Runtime r = getRuntime();
try {
r.exec ("javac MyNewClass.java");
} catch (IOException e) {
System.out.println("ooops " + e.getMessage());
} (3) somehow try to load that new class, maybe using ClassLoader cl = ClassLoader.getSystemClassLoader();
cl.loadClass("MyNewClass");

XJC Tool - For building Java classes from Schema

Hi all,
I am using XJC tool for Building java classes from Schema.
Can we have any other tool for generating java classes from Schema?
Thanks in advance,
typurohit

Solved my own problem and forgot to post the answer: the "xsd:import" is also considered as a targetNamespace, so each xsd:import needs a package specified as well when using oracg. It would be helpful if the Oracle documentation had stated that, but it does not point this out.

[b]What is content Provider java Class & How is it useful?.[/b]

Hi,
I would like to know more details on What is content Provider java Class & How is it useful?. Appreciate precise answers on this.
Thank you,
Renga
Email : [email protected]

Portal Server allows multiple sources of information, applications, and services to be displayed within a single page or set of pages that the user can view in a browser. The page in which the content is included is known as the desktop. The various sources of content are displayed in rectangular areas arranged in rows and columns within the desktop called channels. A Java class, called a provider, is responsible for converting the content in a file, or the output of an application or service into the proper format for a channel. A number of providers are shipped with the Portal Server including a bookmark provider, an application provider, and a notes provider. As the desktop is imaged, each provider is queried in turn for the content of its associated channel.

Using a Compiled Java Class --- Error

Hi All,
I am new to jsp tech. I am using 'Sun Java system application web server'.
I am getting following error when running ch06_02.jsp :
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Unable to compile class for JSP
Generated servlet error:
[javac] /nfs/bxslnx/home/bxs/install/SUNWappserver/domains/domain1/generated/jsp/j2ee-modules/__default-web-module-server/org/apache/jsp/jsp/Examples/ch06/ch06_005f02_jsp.java:6: '.' expected
[javac] import ch06_01;
[javac] ^
[javac] 1 error
     org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:88)
     org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:337)
     org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:429)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:489)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:468)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:456)
     org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:516)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:307)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:251)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:860)
     sun.reflect.GeneratedMethodAccessor74.invoke(Unknown Source)
     sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     java.lang.reflect.Method.invoke(Method.java:585)
     org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:249)
     java.security.AccessController.doPrivileged(Native Method)
     javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
     org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:282)
     org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:165)
note The full stack trace of the root cause is available in the Sun-Java-System/Application-Server logs.
My two files are :
ch06_01.java
public class ch06_01
public ch06_01()
public String msg()
return "Hello from JSP!";
ch06_02.jsp
<%@page import="ch06_01" %>
<HTML>
<HEAD>
<TITLE>Using a JavaBean</TITLE>
</HEAD>
<BODY>
<H1>Using a JavaBean</H1>
<% ch06_01 messager = new ch06_01(); %>
The message is: <%= messager.msg() %>
</BODY>
</HTML>
Please help me ....... I don't know whats going wrong . I m using Suse OS.
Thanks
Basant

Hi
You have to place the xml parsing library inside the lib directory under the WTK.
Mihai

Compiling Java Class in Workshop

May I ask a dumm question: how to compile a java class in Workshop? Application
Build or Project Build does not seem to do the work.
Thanks.

"Gerald Nunn" <[email protected]> wrote:
"Jeff" <[email protected]> wrote in message
news:406455b2$[email protected]..
May I ask a dumm question: how to compile a java class in Workshop?Application
Build or Project Build does not seem to do the work.Works fine for me, what type of project is the java file in?
Gerald
Thanks for the reply.
It is a web project. My Java files are under the following folder tree:
eSheetWeb\WEB-INF\classes
I have run Build Project against eSheetWeb few times. No errors but java files
just not getting compiled to class. Also is there a way to just compile without
run the entire Build?

Error while compiling java class (ora-29535 source requires recompilation)

Hello. I`m new with oracle and i`m having a problem with java classes. Few days ago i loaded java classes (loadjava) from jar file(biojava3-structure-3.0.2.jar) and compiled ( everything compiled with status valid). Now i`m writing my own class and i can`t import classes from biojava3. I`m getting error:
Projekt:7: cannot access org.biojava.bio.structure.Atom
bad class file: null
class file has wrong version 50.0, should be 49.0
Please remove or make sure it appears in the correct subdirectory of the classpath.
import org.biojava.bio.structure.Atom;
I have tryed to change jdk version in netbeans from 1.7 to 1.6. I created java class in sql plus That still not resolved my problem.
Please help me.

consider posting in Java forum instead of Database forum
https://forums.oracle.com/forums/category.jspa?categoryID=285

Compiling java classes from JDeveloper

Hi guys... perhaps this thred need to be created in JDeveloper fourm, it so please let me know.
I generated the classes from a web service which complie without errors and exedcute correctly. When trying to compile the main stub in Oracle database, I get an error "CONNOT RESOLVE SYMBOL" reviewing the java class, I see that extends the wrapper generated by Jdev. So I try to complie the extendable class, after trying to generate and compile it in the database, I get the error: "class$ is reserved for internal use" The code has the next line:
static java.lang.Class class$(java.lang.String param1)
Is this error launched from the oracle database? My guess is that maybe Im missing some library or something and thats why I can create the such Java Name procedures. But I will like if anyone could guide me through this exception.
Thanks
JP

Do you have .jar (or the .class) files created after the compile from JDeveloper?
If you do, you can load all of them using the command line utility loadjava:
$ loadjava
loadjava: Usage: loadjava [-definer] [-encoding encoding] [-force] [-genmissing] [-genmissingjar jar] [-grant grants] [-help] [-nousage] [-noverify] [-oci8] [-order] [-resolve] [-resolver resolver] [-schema schema] [-synonym] [-thin] [-tableschema schema] [-user user/password@database] [-verbose] classes..jars..resources..properties...
$

Compiling java classes into dll

Hi,
Just trying to find out is there anyway I can compile the java classes into dll?
If I am to use JNI and C++, will the dll compiled be able to work well in a platform that does not have JVM?
Thank you.

Hi,
Just trying to find out is there anyway I can
an compile the java classes into dll?
No, but you can start the jvm and run your main class from a dll using jni. And, if you do that, you'll of course need a JVM on the client that'll be running your code.

Compile Java class

Hi everyone,
I am new to WSAD env. Can anybody tell me "How I can compile a Java class using WSAD?".After compilation, where does it(the dir structure and location) keep the .class file?
Thanks in advance

In a project I have in WSAD Integration Edition 5.1, a .java file is compiled to a .class file in
/WebContent/WEB-INF/classes/
I'm not sure if that was your question if it relates to JavaServer Pages

Unable to compile java classes in NWDS- "JSPDynPage cannot be resolved "

Hi All,
I am trying to write small JSPDynaPage when i am getting following complilation error in my Java classess.
1) "PageProcessorComponent cannot be resolved or is not a valid superclass"
2) "JSPDynPage cannot be resolved or is not a valid superclass"
I did check for the existance of
com.sap.portal.htmlbbridge.jar & prtapi.jar which is present in my C:\NetWeaverDevStudio\eclipse\plugins\com.sap.ep.applicationDevelopment and
ECLIPSE_HOME=C:/NetWeaverDevStudio/eclipse but for some reason i am unable to compile my classes. Please help me to resolve this issue.
Thanks,
Manju

Try the following link.
https://www.sdn.sap.com/irj/sdn/downloaditem?rid=/library/uuid/cfc19866-0401-0010-35b2-dc8158247fb6
The download in the above link has NWDS and portal as well. Unzip the file and install NWDS studio.

Any tools for converting java class to xml schema ?

Hi,
Are there any tools out there that can convert my java class to xml schema. How such tools take care of java collections like HashTable, ArrayList etc. in my class structure. I am not interested in writing any configuration files(like jaxb configuration files, jibx binding xml files etc.) for serving this purpose and the can be able to give me xml schema from the java classes. Please suggest ...
I am not sure even JAXB 2.0 allows me to do this without writing any jaxb configuration files or annotations in my java class which is not there in JDK 1.4.2
Thanks & Regards,
Kr.

Hi,
You can convert the EDI file to XML in any of the ways
1) Using third party seeburger adapters
2) Conversion agent
3) Stylus studio.
I think using java code it will be very difficult.
Thnx
Chirag

How to encrypt jar files ? (please recommand tool to secure java class file

Dear All:
After release of our webstart application,I begin to worry about the source code -anti compiling if jars are extracted by un-knowen user.
Is there any tool to secure specified jars of a webstart application (wich is composed of lot jar files,I just only want to secure the "KEY" jar file)
I also heard that obfuscator hurts performance ,My boss does not allow such solution)
Besides,If I have to use obfuscator,Is there any setting in jnlp to noted?
Regards
john from Taiwan.

We're using Klassmaster: http://www.zelix.com/klassmaster/index.html
There are a lot of discussions about de-compiling, encrypting and so on on the web, but enctyption discussions allways end up in a catch-22 case, because you will have to supply the classloader with key to unlock your jar-files....
obfuscation is not perfect either, but it can make it really had to get anything usefull from the de-compiled code. We have not noted any preformance problems with obfuscation, only some reflection issues :-)
There are also some special compilers for java which creates linux / windows executables: http://www.excelsior-usa.com/jet.html but I have not tried this myself...
Message was edited by:
AsbjornAarrestad

Is it possible to get the Source from the Compiled Java Class File?

Hello All,
I wrote a java file which uses Java Swing to crea a GUI.I have also compiled the jave file.
The problem now is that i've made many changes and compiled it many times.Now suddenly due to some problem,the contents of tha Java file have been deleted and it shows 0 bytes.
Is there any way to recover my Java source file from the Class file?I would be thankful to anyone who can help me out on this.
Thanks in Advance,
Regards,
Vijayakannan

Yes and no, you can reverse engineer it to an extent, it wont look exactly like your original source though, it'll be full of commented out bytecode bits etc. As its your own code though you've got the best chance of deciphering it. Go to somewhere like www.tucows.com to download the software for doing it.
ARB

Ant or what tool to compile Java Classes

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