Could I set breakpoint in the code of core Java classes in JDK?

The programme never stop at this kind of breakpoint when debugging.
How can I do that?

It is MyEclipse I used.
It remind me someting like "no line number information".
or it is the jdk version problem ?

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When I send messages off-line, they enter in the addressed mailbox with the date and hour which I've clicked "Send later". How could I set up to the real time?

When I send messages off-line, they enter in the addressed mailbox with the date and hour which I've clicked “Send later”. How could I set up to the real time?

What you say about Send Later timestamp is correct.
When you click Send or Send Later a time is set regardless of when you actually sent the Send Later email.
Please voice your vote at this link:
https://bugzilla.mozilla.org/show_bug.cgi?id=560901
You will need to logon/register.

I ran a virus/trojan fix and this is what it said it could not repair something in the main library core or something like that. What do I do? The problem seems to be with safari?

I ran a virus/trojan fix and this is what it said it could not repair something in the main library core or something like that. What do I do? The problem seems to be with safari?

I ran the utility disk and this is what it said.
Warning permission differ Applications/Safari drwxr-xrx they are -rwxr-xr system/livrary Cores has been modified and will not be repaired.
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How to execute the ldapsearch command by java class in linux os?

hi,all
I want to query the users by ldapsearch command. I call the command in my java class. In windows, It work well. But in linux , there haven't any result. My test program is following:
===============
import java.util.*;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.LineNumberReader;
public class test{
public static Vector queryAllUser(){
try{
Vector v=new Vector();
String cmdquery="ldapsearch -h localhost -b\"dc=metasphere,dc=com\" \"uid=*\" uid ";
//String cmdquery="ls -la";
Process process=Runtime.getRuntime().exec(cmdquery);
System.out.println("cmdquery:"+cmdquery);
InputStreamReader ir=new InputStreamReader(process.getInputStream());
LineNumberReader input = new LineNumberReader (ir);
System.out.println("input="+input);
String line;
while ((line = input.readLine ()) != null){
System.out.println("Line:"+line);
if(line.startsWith("uid")){
String temp=line.substring(line.indexOf(":")+1,line.length());
v.add(temp);
return v;
}catch(Exception e){
e.printStackTrace();
System.out.println("runtime error:"+e.getMessage());
return null;
public static void main(String argv[]){
Vector v=queryAllUser();
for(int i=0;i<v.size();i++){
System.out.println((String)v.get(i));
================
In fact, when I execute the command: ldapsearch -h localhost -b"dc=metasphere,dc=com" "uid=*" uid
in linux prompt, the screen show the results:
version: 1
dn: uid=toppymgt,dc=metasphere,dc=com
uid: toppymgt
dn: uid=qutao,dc=metasphere,dc=com
uid: qutao
dn: uid=zz,dc=metasphere,dc=com
uid: zz
dn: uid=z,dc=metasphere,dc=com
uid: z
dn: uid=admin,dc=metasphere,dc=com
uid: admin
dn: uid=alan,dc=metasphere,dc=com
uid: alan
dn: uid=misssixty,dc=metasphere,dc=com
uid: misssixty
dn: uid=channelv,dc=metasphere,dc=com
uid: channelv
What's reason? Please help me. Thx.

If there have a bugs in Linux OS. Please help me!

Deploying the JSPs, Servlets and Java class files

Hello All,
I'm very new to the Oracle 9i AS. We are using Version 1.0.2.2.
How do we deploy the JSPs, Servlets, and Java class files (simple class files, not EJBs)?
plese give us the procedure and stpes how to deply or the links for the same.
Thanks,
Santhosh.

Hi
I guess u r running apache-jserv as servlet engine for your jsp and servlets. If its so, jsp files can be run without any additonal configuration by putting the jsp file under document root or any subdirectory and for running servlets u have to add classpath entries for your servlet in jserv.properties file.
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http://servername:port/servlet/IsItWorking, if u get success msg that means servlet engine is working fine.
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Where can I download the api's of java classes ?

I'd like to download all the api's of java classes. I only found a lot of pages, but i don't like to download one after other for a very long time.
Where I can find a complete document of java classes api in a single document?
When I say api of java classes I mean the name of all java classes , it's methods, atributes, what the class does, and so on...
For the JAVA 1.5.0 of course...
Thanks.

Go to http://java.sun.com/j2se/1.5.0/download.jsp and click the Download link where it says J2SE 5.0 Documentation.

Could anyone tell me whats the code means??

Hi,
Could anyone tell me explanation of the code below:
player1.placeArmy(world.southAmerica().territory1());
all I know is that it is calling the method of an objects. I am not really sure about whats inside the bracket. How could such argument have the dot notation format?
Furthermore, could anyone have some advices about references to the multiple classes code example??

player1.placeArmy(world.southAmerica().territory1());player1 is a variable of some type. This type has presumably a method called placeArmy, which takes a parameter.
world is another variable of some type. This type has presumably a method called a method southAmerica(),
which returns a value of a type, which has a method territory1(), whose return value is provided as teh paramtere value to the method call mentioned above.
Another useful example as a food for thoughts could be:
Object o = new Integer(3);
System.out.println(o.toString());

Setting breakpoint on any method call of a class

Using the new (or old) debugger, is it possible to set a breakpoint that will stop on any method invocation of a class?
I am debugging the processing of a purchase order and want the debugger to stop on any method call to CL_PO_HEADER_HANDLE_MM, which has 113 methods, so setting a breakpoint in each method is way too tedious.
Do you know of a way to do this in one go?

Activate Layer-Aware Debugging for class CL_PO_HEADER_HANDLE_MM, and then set breakpoint on statement CALL METHOD.
I tried for CL_GUI_ALV_GRID, and it worked. I am on 702 release.

How to set the classpath and path from the jsp to call java class function

Hi Exprets,
I have a requirement to call a java class function which returns a hashmap object from the jsp. The java class in present in one jar file and that jar file is location somewhere in unix path. So the requirement is to set the classpath for that jar file and then create the object of the java class and then call the function.
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2. Are there chances for the data to become stale within a session?
In this case storing the data is session will mean holding the stale data till the user session lasts which is not right.
3. How many data sets does the session already holds?
If there are large no. of data sets already present in the session, then it's strictly not advisable to store the data in the session.
4. Does the server employ some kind of caching mechanism?
Using session cache can definitely improve performance.
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Also, another thing, if the data set retrieved is some kind of data to be displayed in reports, then it would be better to use a pagination query, which will retrieve only the specific no. of rows at a time. A navigation provided in the UI will retrieve the next/previous data set to display.
Thanks,
Shakti

Displaying the output from a java class executed from W/I another class

I have compiled a java class, but I have run into a problem executing the class. I have read the posts and still have not solved the solution. I have tried to get the output of the Process by using "proc.getOutputStream().toString()", however it displays it in binary (ex. java.io.BufferOutputStream@48eb2067). If anyone can provide any assistance I would greatly appreciate it. Or if you could tell me if I'm on the right track or not. Thanks ALL. Here is a code segment:
int truncStart = s.indexOf(".java");
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You have to read the stream, like:
InputStream stream = proc.getOutputStream();
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How can I either move or view the source of a JAVA CLASS user object?

I am using Oracle 8i and I have the following JAVA CLASS objects in my database. I need to move some of these objects to a different database.
1) How can I do this?
2) How can I view the JAVA source code since these are classes?
My knowledge of Oracle is limited. I have searched and searched and I can't find the answer. Any help would be greatly appreciated
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/d082321a_DpsJarStaticFilename JAVA CLASS
DirHelperStatic JAVA CLASS
DirHelperStatic$1 JAVA CLASS
DpsJar JAVA CLASS
DpsJarException JAVA CLASS
DpsJarStatic JAVA CLASS
FilenameFilterImpl JAVA CLASS
FtpClient JAVA CLASS
FtpClient$InputStreamProxy JAVA CLASS
FtpClient$OutputStreamProxy JAVA CLASS
FtpClientStatic JAVA CLASS
FtpException JAVA CLASS
FtpReply JAVA CLASS
FtpTest JAVA CLASS
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LoadXmlStatic JAVA CLASS
UrlFileUtils JAVA CLASS
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dir JAVA CLASS
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The source far java class objects that are not derived from java source objects
(which is the case here, and is typically the case, such as when one loads
classes into the database using loadjava on a jar that contains only .class
files) does not exist in the database (just as it does not exist in a jar which
contains only .class files). So there is essentially no way to view the source, short of extracting the bytecodes and using some decompiling tool. I don't recall what methodologies exist for extracting bytecodes in 8i. As for transferring
the classes to another database, the standard Oracle import/export tool can do this.

Get the relative path for java class

How to get Relative path for java class which is inside in web-inf directory in webapps

ajay.manchu wrote:
Hi gimbal2,
My Requirement is i need to run a java class from batch file,when i created batch file in that i need to mention the complete path of the java class,so instead of mentioning that i want to provide only java class name,thats why i asked that one..
can u help me regarding that....
Thanks in advanceI wonder how that would work then. Let's take a fictive example. You have a class com.mycompany.myapp.Foo. This would mean that the class is stored in some directory like this:
c:/webrootdir/myapp/WEB-INF/classes/com/mycompany/myapp/Foo.classTo be able to run such a class from the commandline using Java, you would have to invoke this command:
java -cp c:/webrootdir/myapp/WEB-INF/classes com.mycompany.myapp.FooHow would knowing the exact path to this class help you?

Set NDValue when the NDType is user defined class

Hi
Environment:
JDeveloper 10.1.3.1.0
Data model: Toplink-POJO
User interface ADF-JSF
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Help me!
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Hi,
you do this similar to what Susan Duncan describes for complex types in WebServices
http://susanduncan.blogspot.com/2006/09/dealing-with-complex-input-params-in.html
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Setting the message parameter in java class

Hi!
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my.message.key=Part1 {0} Part2
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<h:outputFormat value="#{res['my.message.key']}"
rendered="#{userInfo.authenticated}"
escape="false">
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BB

java.text.MessageFormat.format("Part1 {0} Part2", new Object[] { "SomeValue" }) will produce "Part1 SomeValue Part2".

The 'rewrite 1 core api class every day' Thread

as we all know, if you want something doing properly, you've gotta do it yourself
in light of this - I thought rewriting Javas entire core api (so it was done properly) would make quite a fun Thread :P
now, this being a Game Development forum - I thought a good place to start would be in a graphics oriented class that everyone will have used....
* @(#)DisplayMode.java     1.3 01/12/03
* Copyright 2002 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
package java.awt;
public final class DisplayMode
    private Dimension size;
    private int bitDepth;
    private int refreshRate;
    public DisplayMode(int width, int height, int bitDepth, int refreshRate)
        this.size = new Dimension(width, height);
        this.bitDepth = bitDepth;
        this.refreshRate = refreshRate;
    public int getHeight()
        return size.height;
    public int getWidth()
        return size.width;
    public final static int BIT_DEPTH_MULTI = -1;
    public int getBitDepth()
        return bitDepth;
    public final static int REFRESH_RATE_UNKNOWN = 0;
    public int getRefreshRate()
        return refreshRate;
    public boolean equals(DisplayMode dm)
        return (getHeight() == dm.getHeight()
            && getWidth() == dm.getWidth()
            && getBitDepth() == dm.getBitDepth()
            && getRefreshRate() == dm.getRefreshRate());
    public int hashCode()
        return getWidth() + getHeight() + getBitDepth() * 7 + getRefreshRate() * 13;
//and the smaller, faster version...
package java.awt;
public final class DisplayMode
    public final int width;
    public final int height;
    public final int bitDepth;
    public final int refreshRate;
    public DisplayMode(int width, int height, int bitDepth, int refreshRate)
        this.width = width;
        this.height = height;
        this.bitDepth = bitDepth;
        this.refreshRate = refreshRate;
    public int getHeight()
        return height;
    public int getWidth()
        return width;
    public final static int BIT_DEPTH_MULTI = -1;
    public int getBitDepth()
        return bitDepth;
    public final static int REFRESH_RATE_UNKNOWN = 0;
    public int getRefreshRate()
        return refreshRate;
    public boolean equals(DisplayMode dm)
        return (height == dm.height
            && width == dm.width
            && bitDepth == dm.bitDepth
            && refreshRate == dm.refreshRate);
    public int hashCode()
        return width + height + bitDepth*7 + refreshRate*13;
}25th Jan 2003
abu,

m'kay...
i suppose you could do that...
anyway, i'm not good with this 'keyword' stuff and
all.../me wonders why you are posting here at all :D
but wouldn't final mean that you cannot change taht
variables value later...yup
of course you could say that you don't want to, and
that nobody needs to...well yeah... when classes are immutable (as the DisplayMode class is)
its values are, by definition, unchangable.
but why are ther these set methods then?there are no 'set' methods - DisplayMode is an immutable class.
>
this public thing i'm also not sure about.
in this class you may go public, but some classes user
should NOT have ability to set value of variable
directly.the only reason they are public, is because they are final (or should be atleast :P).
I wouldn't make them public otherwise.
Also, the only reason the getXXX methods exist, is it conform to the original spec. of the DisplayMode class. (and the 'standard' or having get methods for public attributes - Dimension,Rectangle,Point etc all do it)
maybe it would be better to stick with protected... ?as markuskidd has pointed out - this class is final, it cannot be extended, hence protected means nothing.
>
othervise it's a good idea.
if you get a bunch of classes that have been
perfected, then maybe sun will one day revise your
classes and replace these old crapier ones.gotta find 1 to do 2morrow now :P (though I doubt this will make any difference to Sun, they simply don't care about correct code)

Could I set breakpoint in the code of core Java classes in JDK?

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