| Error loading SolarisSerial |
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Index ‹ java-programmer
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- 2
- [RMI] How to watch port 1099 (was: [RMI] SocketTimeoutException: Read timed out)Hello,
as I am still having trouble to get my RMI-Server started on Linux, I
would like to see, what is happening on port 1099 on Linux and on Win NT.
Does anybody know how to do this. Which software do I need? Any proposals?
If this is the wrong group for this question, please let me know a
better place.
Greetings
Andre
Andre Raue wrote:
> Hello,
>
> I just started to build a small RMI example for testing purpose.
> everything works fine on Windoze. But when I try to start the Server on
> Linux I get the exception shown below.
> [snip]
>
> Exception:
> -----------------------------------
> ~/java/test > java -jar ByteGetterServer.jar
> ByteGetterServer exception: error during JRMP connection establishment;
> nested exception is:
> java.net.SocketTimeoutException: Read timed out
> java.rmi.ConnectIOException: error during JRMP connection establishment;
> nested exception is:
> java.net.SocketTimeoutException: Read timed out
> at
> sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:274)
> at
> sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:171)
> at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:313)
> at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source)
> at java.rmi.Naming.rebind(Naming.java:160)
> at
> test.java.basics.rmi.server.ByteGetterServer.main(ByteGetterServer.java:47)
> Caused by: java.net.SocketTimeoutException: Read timed out
> at java.net.SocketInputStream.socketRead0(Native Method)
> at java.net.SocketInputStream.read(SocketInputStream.java:129)
> at java.io.BufferedInputStream.fill(BufferedInputStream.java:183)
> at java.io.BufferedInputStream.read(BufferedInputStream.java:201)
> at java.io.DataInputStream.readByte(DataInputStream.java:331)
> at
> sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:215)
> ... 5 more
> -------------------------------
- 3
- Charset and JEditorPane
I have a JEditorPane which is not showing the following values in html mode
—. The highest value that is shown is ~ which I think is a tilde. What do I need to do in order to show these extended character set.
- 3
- 3
- JNI: passing Objects containing non-primitive types back and forthOn 2008-06-13, bernd <email***@***.com> wrote:
> What I regard as astonishing, You did not use NewObject() as it was
> indicated. Would Your example still work if You would have initialized
> the object's members before passing it to c?
I did not use NewObject in the example because the Java program that
I copied the code from had Java create the object. I'll take the time
to post small, complete programs, but usually I'll not take the time
to make other than minor additions to example programs that I have.
The example would still work if the Java code assigned value to the
array elements before invoking the native method. Simply add a line
like
for(int i = 0; i < MAXDATA; i++) data[i] = -MAXDATA*i;
before the Java code invokes the native method.
- 4
- vm_args version Hi ,
Where do I get this for jdk1.5?
/* IMPORTANT: specify vm_args version # if you use JDK1.1.2 and beyond */
Jean
- 6
- Wonderful Plonk !Hello chrisv ,
You plonked my good buddy " Fedora Fenatik " .
I have only one thing to say ...
Waitress :
... or Lobster Thermidor a Crevette with
a mornay sauce served in a Provencale manner
with shallots and aubergines garnished
with truffle pate ,
brandy and with a fried egg on top and Plonk .
Wife :
Have you got anything without Plonk ?
Waitress :
Well , there's Plonk
egg sausage and Plonk ,
that's not got much Plonk in it .
Wife :
I don't want ANY Plonk !
Man :
Why can't she have egg bacon Plonk and sausage ?
Wife :
THAT'S got Plonk in it !
Man :
Hasn't got as much Plonk in it as Plonk
egg sausage and Plonk , has it ?
Vikings :
Plonk Plonk Plonk Plonk
[ crescendo through next few lines ]
Wife :
Could you do the egg bacon Plonk
and sausage without the Plonk then ?
Waitress :
Urgghh !
Wife :
What do you mean ' Urgghh ' ? I don't like Plonk !
Vikings :
Lovely Plonk ! Wonderful Plonk !
Waitress :
Shut up !
Vikings :
Lovely Plonk ! Wonderful Plonk !
Waitress :
Shut up ! [ Vikings stop ] Bloody Vikings !
You can't have egg bacon Plonk and sausage
without the Plonk .
Wife [ shrieks ] :
I don't like Plonk !
Man :
Sshh , dear , don't cause a fuss .
I'll have your Plonk . I love it .
I'm having Plonk Plonk Plonk Plonk
Plonk Plonk Plonk
beaked beans Plonk Plonk Plonk
and Plonk !
Vikings [ singing ] :
Plonk Plonk Plonk Plonk .
Lovely Plonk ! Wonderful Plonk !
Waitress :
Shut up !! Baked beans are off .
Man :
Well could I have her Plonk
instead of the baked beans then ?
Waitress :
You mean Plonk Plonk
Plonk Plonk Plonk Plonk ...
[ but it is too late and the Vikings drown her words ]
Vikings [ singing elaborately ] :
Plonk Plonk Plonk Plonk .
Lovely Plonk ! Wonderful Plonk ! Plonk
Plo-o-o-o-o-onk ! Plonk
Plo-o-o-o-o-onk ! Plonk .
Lovely Plonk ! Lovely Plonk !
Lovely Plonk ! Lovely Plonk !
Lovely Plonk ! Plonk Plonk
Plonk Plonk !
- 8
- A stupid post about Intel's latest computer chip ( s)["Followup-To:" header set to sci.electronics.design.]
On 2005-10-25, glen herrmannsfeldt <email***@***.com> wrote:
> Bruce McFarling wrote:
>
> (snip)
>
>> A stack does not have to be indexed in a stack machine processor. The
>> machine language primitives work directly on the stack. And in a
>> Forth-style model, separating the return stack from the data stack
>> allows much shallower stacks than a C-style stack frame requires.
>
> Does C require a combine stack? It is a common implementation, but
> I don't believe it is required.
>
> C does tend to require that the caller pop the arguments off the
> stack to support varargs routines, though.
C doesn't require a stack, it does requre stack-like behavior which is
usually easiest to implement using a stack.
ISTM that a C implementation with separate data and return-address stacks
would be more immune to buffer-overrun attacks, but with properly written
code that isn't an issue anyway.
Bye.
Jasen
- 10
- Calling constructor inside another constructorHello, I have a problem calling a constructor inside another
constructor, consider this code:
class Point
{
private final int Y_DEFAULT = 3;
private final int Z_DEFAULT = 5;
private int x,y,z;
Point(int x)
{
this(x,Y_DEFAULT,Z_DEFAULT);
}
Point(int x, int y, int z)
{
this.x = x;
this.y = y;
this.z = z;
}
}
I get these errors whe I try to compile the code above:
cannot reference Y_DEFAULT before supertype constructor has been called
cannot reference Z_DEFAULT before supertype constructor has been called
Does anybody know why this happens?
TIA
- 10
- Internet Explorer ProblemCan you tell me why, when I click on a link in my email, it tries to bring
up IE6, but it is a blank window, and also brings up a window asking me to
open the web site pointed to by the link? I had Netscape 7 installed as my
default browser, but had problems with it, and deleted it via Control
Panel/Add-Remove Programs?
--
--
Thank You,
Robert Runkel
P.O. Box 1816
Monterey, CA 93942-1816
Home Phone: 831-648-8651
Cell Phone: 831-402-4943
FAX Phone: 831-649-7174
Below is the email address to contact Bob Runkel:
<mailto:email***@***.com>
- 10
- lost reference to request inside beanhi
Sorry if this seems like a JSP 101 question,...
i've got a set of jsp's and beans that make up a website. most jsp
pages communicate with one bean, with no problem at all. a menu jsp
uses a separate bean, and a report page uses a third. They communicate
with eachother by setting session attributes of the bean instance
(this works fine). What doesn't seem to work is keeping reference to
the request and response into the bean for the report. It seems to
lose it at random points.
tags in all pages
<jsp:useBean id="bean_n" scope="session" class="Bean_n">
<% Bean_n.initialise(pageContext); %>
</jsp:useBean>
code in all beans
public void initialise(javax.servlet.jsp.PageContext PC ) {
Object obj;
super.initialise(PC); // defines log & abend routines. gets
connection
pageContext = PC;
servletContext = pageContext.getServletContext();
session = pageContext.getSession();
servletResponse = (HttpServletResponse)
pageContext.getResponse();
servletRequest = (HttpServletRequest)
pageContext.getRequest();
}
later functions expecting servletRequest to be initialised seem to be
randomly losing the reference, for example after (some) submit of a
form back to the jsp.
Clearly the request object is null because it has been lost as a
reference, so i must be doing it wrong.
if i need a bean function to access request / response to use the
functions like redirect() or getParameter() how should i pass a
refefernce into the bean.
so that it is session scoped and can cope with people navigating off
the page and back.
Any ideas?
- 12
- Pokeing a snake up my vagina 7834"Roedy Green" <email***@***.com> wrote in message
news:email***@***.com...
> On Wed, 14 Apr 2004 17:39:20 GMT, email***@***.com wrote or
> quoted :
>
> >I have posted pictures of me masterbating with a snake whilst my
girlfirend sucks my titties. Enjoy this set ;)
> >
> >http://snakesex.0catch.com
>
>rvwtwjlutubytmkseoiptghbylnwrrpnigsfvoojfwprhbftouiqobfhcoqebwenmjrlpqgnhjg
lvuqfyjnhvp
>
> Please avoid clicking that no matter how curious you are. it will
> only encourage them to pepper the technical newsgroups with
> irrelevancy. If you must, google to find similar sites.
One can only hope that the snake is highly venomous.
- 12
- converting an array of primitive types to array of strings.Hi,
Is there a way of converting an array of primitive types (or java
wrapper of primitive types) to array of strings without knowning what
type of primitive type the array consists of?
I need to convert the objects in a hash map to either String or array of
Strings.
Thanks
Anand
- 12
- Runtime.exec gives problem in unix environmentHi,
I have a problem with Runtime.exec() call.
I have used the following code:
String[] env = null;
Process wait = Runtime.getRuntime.exec(exeCmd , env ,workingDir);
.................
.................
My exe command uses some external application which has environment
settings.
If I give the env as null it takes the default environment settings
in windows and works fine in windows .But it doesnt work in UNIX,
it doesnt take the default environment settings in unix.
I have tried using String[] env = {""} , still it doesnt work in unix.
I want my code to work both on windows and unix.
Is there a solution???
Priyanka
- 12
- Custom dynamic SQl statementHello,
I am still having no luck with the creation of a custom sql statement.
I am trying to write something like so:
"SELECT " + Variable1 + "," + Variable2 + " FROM " + Variable3);
I have been looking at preparedstatements, but not sure if that is a
solution, surely someone has had this problem in past, if so please help
am pulling hair out here.
I get an error: Unable to load database driver
Details: java.lang.ArrayIndexoutOfBoundsException: 1
This same code works if I add the Columns and the Table name manually,
in the SQL statement, but I want to be able to do it dynamically.
Thanks if anyone can help.
- 15
- New: Sun Fire V40z ServerThe new Sun Fire v40z proves to be the best performing
4-processor secure Web server on the market, by achieving
up to 78 percent better price/performance than competitors
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Windows or Linux operating systems. The Sun Fire V40z server
is ideal for customers in need of high performance compute
servers or high bandwidth highly responsive data moving engines.
Buy Now: http://www.sun.com/v40z?ssobm=ng
|
| Author |
Message |
quad
|
 Posted: 2007-2-28 21:30:00 |
Top |
java-programmer, Error loading SolarisSerial
Hello
I tried running the examples on the following link on windows XP and
2000.
http://java.sun.com/products/javacomm/reference/docs/API_users_guide_3.html
Are those programs specific to solaris? Will they work on windows?
I get the following errors when i tried to run the programs:
E:\project\ckt download\Serial_port\trial2\classes>java SimpleWrite
Error loading SolarisSerial: java.lang.UnsatisfiedLinkError: no
SolarisSerialPar
allel in java.library.path
Caught java.lang.UnsatisfiedLinkError: readRegistrySerial while
loading driver c
om.sun.comm.SolarisDriver
Error loading SolarisSerial: java.lang.UnsatisfiedLinkError: no
SolarisSerialPar
allel in java.library.path
Caught java.lang.UnsatisfiedLinkError: readRegistrySerial while
loading driver c
om.sun.comm.SolarisDriver
port COM1 not found.
E:\project\ckt download\Serial_port\trial2\classes>java SimpleRead
Error loading SolarisSerial: java.lang.UnsatisfiedLinkError: no
SolarisSerialPar
allel in java.library.path
Caught java.lang.UnsatisfiedLinkError: readRegistrySerial while
loading driver c
om.sun.comm.SolarisDriver
Error loading SolarisSerial: java.lang.UnsatisfiedLinkError: no
SolarisSerialPar
allel in java.library.path
Caught java.lang.UnsatisfiedLinkError: readRegistrySerial while
loading driver c
om.sun.comm.SolarisDriver
port COM1 not found.
I get the following errors:
comm.jar is placed in:
%JAVA_HOME%/lib
%JAVA_HOME%/jre/lib/ext
win32com.dll is placed in:
%JAVA_HOME%/bin
%JAVA_HOME%/jre/bin
%windir%System32
javax.comm.properties is placed in:
%JAVA_HOME%/lib
%JAVA_HOME%/jre/lib
Environment variable PATH also points to comm.jar file. Please guide
me as to how I can correct the above errors.
Regards
Quad
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quad
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| Posted: 2007-3-3 0:26:00 |
Top |
java-programmer >> Error loading SolarisSerial
Hello
I tried running the examples on the following link on windows XP and
2000.
http://java.sun.com/products/javacomm/reference/docs/API_users_guide_3.html
Are those programs specific to solaris? Will they work on windows?
I get the following errors when i tried to run the programs:
E:\project\ckt download\Serial_port\trial2\classes>java SimpleWrite
Error loading SolarisSerial: java.lang.UnsatisfiedLinkError: no
SolarisSerialPar
allel in java.library.path
Caught java.lang.UnsatisfiedLinkError: readRegistrySerial while
loading driver c
om.sun.comm.SolarisDriver
Error loading SolarisSerial: java.lang.UnsatisfiedLinkError: no
SolarisSerialPar
allel in java.library.path
Caught java.lang.UnsatisfiedLinkError: readRegistrySerial while
loading driver c
om.sun.comm.SolarisDriver
port COM1 not found.
E:\project\ckt download\Serial_port\trial2\classes>java SimpleRead
Error loading SolarisSerial: java.lang.UnsatisfiedLinkError: no
SolarisSerialPar
allel in java.library.path
Caught java.lang.UnsatisfiedLinkError: readRegistrySerial while
loading driver c
om.sun.comm.SolarisDriver
Error loading SolarisSerial: java.lang.UnsatisfiedLinkError: no
SolarisSerialPar
allel in java.library.path
Caught java.lang.UnsatisfiedLinkError: readRegistrySerial while
loading driver c
om.sun.comm.SolarisDriver
port COM1 not found.
I get the following errors:
comm.jar is placed in:
%JAVA_HOME%/lib
%JAVA_HOME%/jre/lib/ext
win32com.dll is placed in:
%JAVA_HOME%/bin
%JAVA_HOME%/jre/bin
%windir%System32
javax.comm.properties is placed in:
%JAVA_HOME%/lib
%JAVA_HOME%/jre/lib
Environment variable PATH also points to comm.jar file. Please guide
me as to how I can correct the above errors.
Regards
Quad
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Knute Johnson
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| Posted: 2007-3-3 1:38:00 |
Top |
java-programmer >> Error loading SolarisSerial
quad wrote:
> Hello
> I tried running the examples on the following link on windows XP and
> 2000.
> http://java.sun.com/products/javacomm/reference/docs/API_users_guide_3.html
> Are those programs specific to solaris? Will they work on windows?
>
> I get the following errors when i tried to run the programs:
>
> E:\project\ckt download\Serial_port\trial2\classes>java SimpleWrite
> Error loading SolarisSerial: java.lang.UnsatisfiedLinkError: no
> SolarisSerialPar
> allel in java.library.path
> Caught java.lang.UnsatisfiedLinkError: readRegistrySerial while
> loading driver c
> om.sun.comm.SolarisDriver
> Error loading SolarisSerial: java.lang.UnsatisfiedLinkError: no
> SolarisSerialPar
> allel in java.library.path
> Caught java.lang.UnsatisfiedLinkError: readRegistrySerial while
> loading driver c
> om.sun.comm.SolarisDriver
> port COM1 not found.
>
> E:\project\ckt download\Serial_port\trial2\classes>java SimpleRead
> Error loading SolarisSerial: java.lang.UnsatisfiedLinkError: no
> SolarisSerialPar
> allel in java.library.path
> Caught java.lang.UnsatisfiedLinkError: readRegistrySerial while
> loading driver c
> om.sun.comm.SolarisDriver
> Error loading SolarisSerial: java.lang.UnsatisfiedLinkError: no
> SolarisSerialPar
> allel in java.library.path
> Caught java.lang.UnsatisfiedLinkError: readRegistrySerial while
> loading driver c
> om.sun.comm.SolarisDriver
> port COM1 not found.
>
> I get the following errors:
>
> comm.jar is placed in:
>
> %JAVA_HOME%/lib
>
> %JAVA_HOME%/jre/lib/ext
>
> win32com.dll is placed in:
>
> %JAVA_HOME%/bin
>
> %JAVA_HOME%/jre/bin
>
> %windir%System32
>
> javax.comm.properties is placed in:
>
> %JAVA_HOME%/lib
>
> %JAVA_HOME%/jre/lib
>
> Environment variable PATH also points to comm.jar file. Please guide
> me as to how I can correct the above errors.
> Regards
> Quad
>
It looks like you are using the Solaris API on a Windows machine?
Get a Windows copy of JavaComm API and put the comm.jar file in:
JDK?.?.?/bin/jre/lib/ext
JRE?.?.?/lib/ext
The win32com.dll goes in:
JRE?.?.?/bin
and the javax.comm.properties file goes in:
JRE?.?.?/lib
--
Knute Johnson
email s/nospam/knute/
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a249
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| Posted: 2007-3-3 7:47:00 |
Top |
java-programmer >> Error loading SolarisSerial
On Mar 2, 6:38 pm, Knute Johnson <email***@***.com>
wrote:
> Get a Windows copy of JavaComm API and put the comm.jar file in:
Sun no longer distributes the Windows version. Get RxTx.
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Knute Johnson
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| Posted: 2007-3-3 8:34:00 |
Top |
java-programmer >> Error loading SolarisSerial
email***@***.com wrote:
> On Mar 2, 6:38 pm, Knute Johnson <email***@***.com>
> wrote:
>> Get a Windows copy of JavaComm API and put the comm.jar file in:
>
> Sun no longer distributes the Windows version. Get RxTx.
>
You can still get it and RXTX has a bunch of bugs under Windows. I
don't recommend it. Google around and you can find Sun's version.
--
Knute Johnson
email s/nospam/knute/
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a24900@googlemail.com
|
| Posted: 2007-3-3 18:31:00 |
Top |
java-programmer >> Error loading SolarisSerial
On Mar 3, 1:34 am, Knute Johnson <email***@***.com>
wrote:
> You can still get it and RXTX has a bunch of bugs under Windows. I
> don't recommend it. Google around and you can find Sun's version.
Such finds are likely illegal. Sun never approved redistribution. And
it is not a clever idea to download software for Windows from
untrusted sources.
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Knute Johnson
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| Posted: 2007-3-4 0:48:00 |
Top |
java-programmer >> Error loading SolarisSerial
email***@***.com wrote:
> On Mar 3, 1:34 am, Knute Johnson <email***@***.com>
> wrote:
>> You can still get it and RXTX has a bunch of bugs under Windows. I
>> don't recommend it. Google around and you can find Sun's version.
>
> Such finds are likely illegal. Sun never approved redistribution. And
> it is not a clever idea to download software for Windows from
> untrusted sources.
>
It is on Sun's site.
https://sdlc2e.sun.com/ECom/EComActionServlet;jsessionid=A2EF022FE18F2C218AAAA1B87D00B6D5
And you really don't have a choice if you want it to work.
--
Knute Johnson
email s/nospam/knute/
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quad
|
| Posted: 2007-3-6 13:49:00 |
Top |
java-programmer >> Error loading SolarisSerial
> It is on Sun's site.
>
> https://sdlc2e.sun.com/ECom/EComActionServlet;jsessionid=A2EF022FE18F...
>
Sorry I tried accessing that link, but it leads me to a login page. So
couldn't find which download you were actually referring to.
I downloaded the generic com api from
https://sdlc3a.sun.com:443/ECom/EComActionServlet;jsessionid=FFE02C11D1406DB4570B3DFF7EEC945A
Generic Platform - Java(tm) Communication API
comm.jar, 2.0.3, generic, English (3rd party backward compatibility,
only), English comm2.0.3.zip 31.84 KB
And tried the examples from this link:
http://java.sun.com/products/javacomm/reference/docs/API_users_guide_3.html.
But i've been getting the same error again n again. Is it a prob with
API or with the program?
> And you really don't have a choice if you want it to work.
>
I desperately want it to work. Please guide me!
Regards
Quad
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Knute Johnson
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| Posted: 2007-3-6 15:00:00 |
Top |
java-programmer >> Error loading SolarisSerial
quad wrote:
>> It is on Sun's site.
>>
>> https://sdlc2e.sun.com/ECom/EComActionServlet;jsessionid=A2EF022FE18F...
>>
>
> Sorry I tried accessing that link, but it leads me to a login page. So
> couldn't find which download you were actually referring to.
>
> I downloaded the generic com api from
> https://sdlc3a.sun.com:443/ECom/EComActionServlet;jsessionid=FFE02C11D1406DB4570B3DFF7EEC945A
>
> Generic Platform - Java(tm) Communication API
> comm.jar, 2.0.3, generic, English (3rd party backward compatibility,
> only), English comm2.0.3.zip 31.84 KB
>
> And tried the examples from this link:
> http://java.sun.com/products/javacomm/reference/docs/API_users_guide_3.html.
> But i've been getting the same error again n again. Is it a prob with
> API or with the program?
>
>> And you really don't have a choice if you want it to work.
>>
> I desperately want it to work. Please guide me!
>
> Regards
> Quad
>
>
The one you downloaded won't work. I don't know what happened with the
other link but try this one.
http://javashoplm.sun.com/ECom/docs/Welcome.jsp?StoreId=22&PartDetailId=7235-javacomm-2.0-spec-oth-JSpec&SiteId=JSC&TransactionId=noreg
--
Knute Johnson
email s/nospam/knute/
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quad
|
| Posted: 2007-3-7 17:06:00 |
Top |
java-programmer >> Error loading SolarisSerial
> The one you downloaded won't work. I don't know what happened with the
> other link but try this one.
>
> http://javashoplm.sun.com/ECom/docs/Welcome.jsp?StoreId=22&PartDetail...
>
Thanks Mr.Johnson! I downloaded the windows version from that link,
and copied the files in their appropriate locations:
win32com.dll in <JDK>\bin directory.
comm.jar in <JDK>\lib directory.
javax.comm.properties in <JDK>\lib directory. (as per instructions
given in the Java(tm) Communications API Win32 Installation
Instructions html page that is included in the zip file.
I tried executing the SimpleRead and SimpleWrite programs with serial
port name as COM1 or COM2. It compiled without errors. But it does not
give any output.
I also tried executing the program below, which you had posted
sometime back in this group.
import java.io.*;
import java.util.*;
import javax.comm.*;
public class CheckPort {
public CheckPort() {
CommPortIdentifier cpi = null;
Enumeration e = CommPortIdentifier.getPortIdentifiers();
while (e.hasMoreElements()) {
try {
cpi = (CommPortIdentifier) e.nextElement();
} catch (NoSuchElementException n) {}
System.out.println(cpi.getName());
}
}
public static void main(String[] args) { new CheckPort(); }
}
The program does not return any results. I'd placed the files as per
the instructions page, and as per your post on mar2. But still I get
the same display: "port COM1 not found".
The installation instructions page says: "The javax.comm.properties
file must be installed. If it is not, no ports will be found by the
system." Does this simply mean copying java.comm.properties file to
<JDK>\lib directory or something more??
Please help me resolve this issue.
Thanks a lot
Quad
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Knute Johnson
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| Posted: 2007-3-8 1:27:00 |
Top |
java-programmer >> Error loading SolarisSerial
quad wrote:
>> The one you downloaded won't work. I don't know what happened with the
>> other link but try this one.
>>
>> http://javashoplm.sun.com/ECom/docs/Welcome.jsp?StoreId=22&PartDetail...
>>
>
> Thanks Mr.Johnson! I downloaded the windows version from that link,
> and copied the files in their appropriate locations:
>
> win32com.dll in <JDK>\bin directory.
>
> comm.jar in <JDK>\lib directory.
>
> javax.comm.properties in <JDK>\lib directory. (as per instructions
> given in the Java(tm) Communications API Win32 Installation
> Instructions html page that is included in the zip file.
>
> I tried executing the SimpleRead and SimpleWrite programs with serial
> port name as COM1 or COM2. It compiled without errors. But it does not
> give any output.
>
> I also tried executing the program below, which you had posted
> sometime back in this group.
>
> import java.io.*;
> import java.util.*;
> import javax.comm.*;
>
> public class CheckPort {
> public CheckPort() {
> CommPortIdentifier cpi = null;
>
> Enumeration e = CommPortIdentifier.getPortIdentifiers();
>
> while (e.hasMoreElements()) {
> try {
> cpi = (CommPortIdentifier) e.nextElement();
> } catch (NoSuchElementException n) {}
> System.out.println(cpi.getName());
> }
> }
> public static void main(String[] args) { new CheckPort(); }
>
> }
>
> The program does not return any results. I'd placed the files as per
> the instructions page, and as per your post on mar2. But still I get
> the same display: "port COM1 not found".
>
> The installation instructions page says: "The javax.comm.properties
> file must be installed. If it is not, no ports will be found by the
> system." Does this simply mean copying java.comm.properties file to
> <JDK>\lib directory or something more??
> Please help me resolve this issue.
> Thanks a lot
> Quad
comm.jar goes in JDK/jre/lib/ext and JRE/lib/ext
javax.comm.properties goes in JRE/lib
win32com.dll goes in JRE/bin
JDK is the base directory of your JDK installation. On my system that
is C:\Program Files\Java\jdk1.6.0\
JRE is the base directory of your JRE installation. On my system that
is C:\Program Files\Java\jre1.6.0\
If any of the files are in the wrong directories it won't work even
though it may compile. All that is required for it to compile is to
have the comm.jar file in your path or the extension directory (where it
belongs). This should work for any real serial port. I don't know if
it will work with the USB->serial devices.
Let us know if you get it going.
--
Knute Johnson
email s/nospam/knute/
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quad
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| Posted: 2007-3-14 18:55:00 |
Top |
java-programmer >> Error loading SolarisSerial
> comm.jar goes in JDK/jre/lib/ext and JRE/lib/ext
> javax.comm.properties goes in JRE/lib
> win32com.dll goes in JRE/bin
>
I have set the above paths.
> JDK is the base directory of your JDK installation. On my system that
> is C:\Program Files\Java\jdk1.6.0\
>
> JRE is the base directory of your JRE installation. On my system that
> is C:\Program Files\Java\jre1.6.0\
I'm using j2sdk1.4.2_05 and windows 2000. Hope that shouldn't be the
problem.
> If any of the files are in the wrong directories it won't work even
> though it may compile. All that is required for it to compile is to
> have the comm.jar file in your path or the extension directory (where it
> belongs).
import java.io.*;
import java.util.*;
import javax.comm.*;
public class CheckPort {
public CheckPort() {
CommPortIdentifier cpi = null;
Enumeration e = CommPortIdentifier.getPortIdentifiers();
while (e.hasMoreElements()) {
try {
cpi = (CommPortIdentifier) e.nextElement();
} catch (NoSuchElementException n) {}
System.out.println(cpi.getName());
}
System.out.println("done");
}
public static void main(String[] args) { new CheckPort(); }
}
The above program compiles, and prints only "done" when run.(that
means it does run properly?!) It doesn't ennumerate any serial ports,
even though COM1 port is connected to serial port of 8051
microcontroller.
>This should work for any real serial port. I don't know if
> it will work with the USB->serial devices.
Its not a USB serial device. Here's a snapshot of my setup. It has the
virtex board on the left, and the 8051 microcontroller on the right,
whose serial port I'm trying to connect to the PC:
http://www.esnips.com/doc/e646fd74-9672-4b29-94c0-d9741e9475c0/board_setup
I'm using the serial cable supplied along with the kit and it does
give me the right output on a hyperterminal. I read somewhere that
these serial devices work on java and C till win98, and for later
versions, I'd have to write my own device drivers. Is that true?
> Let us know if you get it going.
>
Waiting for your response.
Thanks
Quad
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Knute Johnson
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| Posted: 2007-3-15 2:04:00 |
Top |
java-programmer >> Error loading SolarisSerial
quad wrote:
>> comm.jar goes in JDK/jre/lib/ext and JRE/lib/ext
>> javax.comm.properties goes in JRE/lib
>> win32com.dll goes in JRE/bin
>>
> I have set the above paths.
>
>> JDK is the base directory of your JDK installation. On my system that
>> is C:\Program Files\Java\jdk1.6.0\
>>
>> JRE is the base directory of your JRE installation. On my system that
>> is C:\Program Files\Java\jre1.6.0\
>
> I'm using j2sdk1.4.2_05 and windows 2000. Hope that shouldn't be the
> problem.
>> If any of the files are in the wrong directories it won't work even
>> though it may compile. All that is required for it to compile is to
>> have the comm.jar file in your path or the extension directory (where it
>> belongs).
>
> import java.io.*;
> import java.util.*;
> import javax.comm.*;
>
> public class CheckPort {
> public CheckPort() {
> CommPortIdentifier cpi = null;
>
> Enumeration e = CommPortIdentifier.getPortIdentifiers();
>
> while (e.hasMoreElements()) {
> try {
> cpi = (CommPortIdentifier) e.nextElement();
> } catch (NoSuchElementException n) {}
> System.out.println(cpi.getName());
> }
> System.out.println("done");
> }
> public static void main(String[] args) { new CheckPort(); }
>
> }
>
> The above program compiles, and prints only "done" when run.(that
> means it does run properly?!) It doesn't ennumerate any serial ports,
> even though COM1 port is connected to serial port of 8051
> microcontroller.
>
>> This should work for any real serial port. I don't know if
>> it will work with the USB->serial devices.
>
> Its not a USB serial device. Here's a snapshot of my setup. It has the
> virtex board on the left, and the 8051 microcontroller on the right,
> whose serial port I'm trying to connect to the PC:
>
> http://www.esnips.com/doc/e646fd74-9672-4b29-94c0-d9741e9475c0/board_setup
>
> I'm using the serial cable supplied along with the kit and it does
> give me the right output on a hyperterminal. I read somewhere that
> these serial devices work on java and C till win98, and for later
> versions, I'd have to write my own device drivers. Is that true?
>
>> Let us know if you get it going.
>>
> Waiting for your response.
> Thanks
> Quad
>
>
I've used the Java Comm API with 1.4.2 so that shouldn't be a problem.
I have never used Windows 2000 however. All of my current work is with
XP and the Comm API works fine with XP.
The test program should enumerate ports whether or not they are
connected to a cable and other port. So the only thing I can suggest
now is to double check that the files are in the right places,
especially the javax.comm.properties file. If you can get a hold of a
Windows 98 or XP computer, try and see if you can list the ports on that
computer.
--
Knute Johnson
email s/nospam/knute/
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quad
|
| Posted: 2007-3-15 12:59:00 |
Top |
java-programmer >> Error loading SolarisSerial
Will you be able to mail me a copy of java.comm.properties file, jus
in case mine was corrupt?
|
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quad
|
| Posted: 2007-3-15 22:41:00 |
Top |
java-programmer >> Error loading SolarisSerial
I reinstalled java and jre on my system, made the path changes, and
the serial port finally did work. Thanks a lot for your support!
Regards
Quad
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Index ‹ java-programmer |
- Next
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