| JVM crashes when calling C++ DLL |
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Index ‹ java-programmer
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- 2
- newbie to javahello,
In following code there is a abstract class so i am not allowed to
create instance of class.
so Figure f = new Figure(10, 10); is wrong but why following statement
is valid?
Figure figref;
CLASS CODE =>
abstract class Figure {
double dim1;
double dim2;
Figure(double a, double b) {
dim1 = a;
dim2 = b;
}
abstract double area();
}
- 2
- searching for encrypted fields in data columnsI am new to database programming and was curious how others solve the
problem of storing encrypted in data in db table columns and then
subsequently searching for these records.
The particular problem that I am facing is in dealing with (privacy)
critical information like credit-card #s and SSNs or business critical
information like sales opportunity size or revenue in the database. The
requirement is that this data be stored encrypted (and not in the
clear). Just limiting access to tables with this data isn't sufficient.
Does any database provide native facilities to store specific columns as
encrypted data ? The other option I have is to use something like RC4 to
encrypt the data before storing them in the database.
However, the subsequent problem is how do I search/sort on these columns
? Its not a big deal if I have a few hundred records; I could
potentially retrieve all the records, decrypt the specific fields and
then do in process searches/sorts. But what happens when I have (say) a
million records - I really don't want to suck in all that data and work
on it but instead use the native db search/sort capabilities.
Any suggestions and past experiences would be greatly appreciated.
much thanks,
~s
- 3
- How can i get the the data come from severlet?Hi,
That's the suituation.
There's a website using servlet to provide some information i need. I
can only get the html they provide for me. Their data will be update
every minite, but i can not stare at it and push "reload" button to get
the new data.
How can i get the data using a Java class from the website
automatically per minite without do the tedious work above.
Any idea?
- 3
- JSP Code Review Tool or Syntax Analyzer?We use an automated Java source code review tool (Hammurpai) in our
company. It does the job. However, we write a substantial amout of JSP
code for web and voice applications. The Java code review tool says it
will also handle JSP, but you need to run it through Jasper first to
turn it in to *.java files. I've been searching all over, but can't
find what I need. I want to take a directory and sub-directories of
*.jsp files and run them through an automated tool that checks for
syntax, parameter naming conventions, closed attribute quotes, closing
tags, ample whitespace, quantity of comments, etc. I want it to show
the violations so the code can be fixed before being bundled and
deployed, only to find out later that it has a problem compiling
because of a missing closing quote. Does anything like this exist out
there?
- 4
- trying to extend messageresources classhi..
i'm trying to create my own messageresources class and placed:
<init-param>
<param-name>application</param-name>
<param-value>coreservlets.Messages</param-value>
</init-param>
<init-param>
<param-name>factory</param-name>
<param-value>coreservlets.MessageFactory</param-value>
</init-param>
in the web.xml file of the context, but struts, ignores it and keeps
using it's own.
- 4
- 4
- need help with jar archivHi,
I need some help with my jar archive.
I need to read a file in my program. I do that with
FileReader.
To locate the file I use getClass().getResource("key/key.txt")
I used the above class.getResource so that teh programme locates the file
in the jar archive. But it doesn't work after getting packed in
jar, otherwise works perfectly alright.
I use the following command to make the jar:
jar cmf caesar/mainClass cipher.jar caesar/c*.class caesar/key/key.txt
Can somebody please help me with that.
I get a error-message as follows
file:\E:\myprogs\Security\cipher.jar!\caesar\key\key.txt ( The syntax for
the filename,
directory and data volume is wrong)
The relevant code lines:
URL fileUrl = getClass().getResource("key/key.txt");
// String filename = fileUrl.getFile();
System.out.println(fileUrl.getFile());
try {
System.out.println(fileUrl.getFile());
BufferedReader read =
new BufferedReader
(new FileReader(fileUrl.getFile()));
Regards,
Sunil
- 5
- When to synchronize a listHi,
I wanted to know when should I synchronize a list. No, this is not the
old question regarding ArrayList Vs Vector. My doubts are more related
to synchronization ( whether a plain ArrayList or synchronized
Arraylist or Vector)
The common answer I find is that Vector or synchronizedList( new
ArrayList ) should be used when two or more threads are accessing the
contents of the List.
For example, consider following code in a Java class.
Vector vec = new Vector();
for (int i = 0; i < somenumber; i++)
{
//do something
vec.add(new Integer(i));
//do more
}
My thought is that whether you use any list, you still would have to
make the loop synchronized. Even if a vector or synchronized ArrayList
is used, another piece of code might just come in and modify that
vector (not run that loop, but just want to modify vec ) before the for
loop comes back again to that place. This is because, synchronized list
means when one thread is updating, another cannot. But if the first
thread is not updating, other freely can. This might create
inconsistent data in the List.
As far as I understand, the synchronization in the Vector is on the
instance itself. So before calling any method on the Vector instance, a
lock is obtained by runtime. Once method execution is over, the lock is
available to any other thread.
This is more possible in Servlets or JSP. ( EJB , I do not think so,
because, a separate instance is assigned to each thread calling a
method in the EJB ).
Another example, would be using a List as a member inside a singleton
class. If two threads request the instance of the singleton, both will
get the reference to the same instance of the class. Say the second
thread gets an index and has to retrieve the object at that index
position in the list, while the first thread is updating the vector. It
might turn out that the value retreived by the second thread might not
be what it expected. So I would anyway have to synchronize the methods
in the singleton, to get a lock on that instance before attempting to
call any method on that instance.
When would I use a List and when would I use synchronized List. Does it
really make any difference whether I use Vector or ArrayList when I
have to synchronize all access to the List. Please give any example to
help me understand the situation.
I have searched google and also I have searched previous posts. I could
not find the answer to this specific question so I am posting this. I
did find lot of stuff related to ArrayList Vs Vector, and which is
better , but not related to synchronization and Lists.
Thanks.
- 5
- PrintStream to Writer"karl wettin" wrote:
>
> Java programmers,
>
> I've wrote this software that prints output to a PrintStream (usually
> System.err), but from time to time I would like to send the output to
> a Writer (ServletResponse.getWriter()) instead.
Change your logic. Write your software so that it always writes using a
Writer. In case you need to write to an OutputStream, use an
OutputStreamWriter.
Writers are newer than OutputStreams (added in Java 1.1). Because of
this, Writers know about OutputStreams, but OutputStreams don't know
anything about Writers. So the only bridge between them is a Writer
(OutputStreamWriter) that knows about an output stream.
> {
// > PrintStream out=System.err;
Writer out = OutputStreamWriter(System.err);
>
> void someMethod(ServletResponse reponse)
> {
// > this.out = new SomeStreamWriterWrapper(response.getWriter());
this.out = response.getWriter();
> }
> }
- 6
- Instantiating a class read in from user inputI am trying to write a simple application that will instantiate a class
whose name is read in from user input. Since the name of the class is being
read in as a String, how can it be instantiated? For example, suppose I
store the name of the user supplied class in a String variable called
ClassName. I can't simple just instantiate the class with a statement such
as new ClassName(), since ClassName is a String. Any advice?
- 9
- Orion - need to add customer parameterHi,
I have a large application which I need to split into 2 and put on
different servers because the applicaiton is becoming too big.
What I need is to add in a parameter which tells me if its Application
A or Application B.
Both applications will have the same code. The only difference is that
when you log onto the system it will some how read the parameter to let
it know which Application it should be and then it will display the
relevant menus. So if the parameter in one of the Orion says 'AppA'
then it will display Application A's menus and vica-versa for
Application B.
Can someone tell me which place is the best to place this parameter?
(e.g. application.xml)??
Also how would I read this parameter?
Please give example if possible.
Thanks
Simon
- 9
- Another error creating JVM through JNII notice that there is another poster with a similar problem to mine,
but he's on Unix and I am on Windows, and I think there may be a
setup/config problem, so I am starting a new thread
I am also getting an error creating the JVM, I am using j2sdk1.4.2_04
with MSDEV 6.0 and have cut'n'pasted about three different pieces of
sample code ( I won't post loads of code here) from working examples
found on the web, they all fail on the call to JNI_CreateJavaVM with an
error code of -1
I am wondering is there are any common setup problems, perhaps having
dlls in the wrong place of environment variables set wrongly, that
might be a cause of this problem?
Here is an example of one code sample I tried that did not work.
Incidentally if I set the version wrong, I get a different error code
(-3, which is to indicate wrong version)
jint ret;
JavaVM* jvm;
JNIEnv* env;
JavaVMInitArgs args;
JavaVMOption options[1];
args.version = JNI_VERSION_1_2;
args.nOptions = 1;
options[0].optionString = "-Djava.class.path=c:\\";
args.options = options;
args.ignoreUnrecognized = JNI_FALSE;
ret = JNI_CreateJavaVM(&jvm, (void **)&env, &args);
- 9
- Images from Jar Files? - How do YOU do it?
It occurs to me that this may be the best way to approach this situation:
If you have a stand-alone java application that runs from a JAR file,
and you have images contained in that JAR file that your application
loads... how do YOU do it?
I'm specifically interested in Jar Bundled applications for OSX, but any
code will do.
If anyone could provide sample code, it would be very much appreciated!
CT
- 9
- Multiline Textbox For Web pageHello,
I have been trying to get a textbox to work now for over a week, and
am starting to think there is not answer. I have a web application
that populates an htmlinputtextarea. The reason I chose it was
because it could display multiple lines. However, if the report gets
too wide for the textbox, the text starts to wrap. I have tried
override and white-space for CSS class, but the best I can get is one
long line (white-space: nowrap). For the setValue, I use \r\n for my
end of line. Example: txtBox.setValue("This is one line\r\nThis is
line two.");
Is there a better textbox than the htmlinputtextarea to display
multiple lines of text with a vertical and horizontal scrollbar? If
not anybody know what I am doing wrong?
Thanks for any help
Ryan
- 9
- hashCode and equals (again)Hello,
I have spent a great deal of time reading through the postings in this
group as well as tutorials/explanations on sites elsewhere (i.e.,
Roedy's, etc.), but have not been able to get a good grasp of hashCode
and equals. I understand most of the rules for hashCode are defined
for use of objects in maps and other comparable collections, so it is
from that POV that I am trying to get a good grasp of the concepts.
Please help if you can - especially the SCCE later.
1. Originally, I thought that it made sense to make an equals method
that uses hashCode as its criteria for equality. However, as I now
understand hashCode, the code _must_ be the same for equal objects,
BUT it is _possible_ to be the same for non-equal objects. Am I
stating this correctly?
2. When would one use a set of criteria to determine equality that is
different from the criteria used to generate a hashCode?
3. Why aren't the hashCode_s in the following code the same?
package hashcode;
public class Main
{
public static void main(String[] args)
{
int[] a = { 1, 7, 0, 0 };
int[] b = { 1, 7, 0, 0 };
System.out.println( "equals: " + a.equals( b ) );
System.out.println( "hash a: " + a.hashCode() );
System.out.println( "hash b: " + b.hashCode() );
Integer[] c = { 1, 7, 0, 0 };
Integer[] d = { 1, 7, 0, 0 };
System.out.println( "equals: " + c.equals( d ) );
System.out.println( "hash c: " + c.hashCode() );
System.out.println( "hash d: " + d.hashCode() );
int[] e = a.clone();
Integer[] f = c.clone();
System.out.println( "equals: " + a.equals( e ) );
System.out.println( "hash a: " + a.hashCode() );
System.out.println( "hash e: " + e.hashCode() );
System.out.println( "equals: " + c.equals( f ) );
System.out.println( "hash c: " + c.hashCode() );
System.out.println( "hash f: " + f.hashCode() );
}
}
Thanks,
Todd
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| Author |
Message |
chellamani
|
 Posted: 2004-9-8 19:00:00 |
Top |
java-programmer, JVM crashes when calling C++ DLL
hi all,
I am calling functions in existing C\C++ program (DLL) through a
wrapper C++ program (another DLL) from java.
ie java <---->Wrapper C++ <-----> Ordinary C++ function
My problem is JVM crashes(some times) and gives the following error,
An unexpected exception has been detected in native code outside the
VM.
Unexpected Signal : EXCEPTION_ACCESS_VIOLATION (0xc0000005) occurred
at PC=0x80C2F75
Function=[Unknown.]
Library=(N/A)
NOTE: We are unable to locate the function name symbol for the error
just occurred. Please refer to release documentation for
possible
reason and solutions.
Current Java thread:
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:1647)
at java.lang.Class.getMethod0(Class.java:1893)
at java.lang.Class.getMethod(Class.java:976)
at javax.swing.UIDefaults.getUI(UIDefaults.java:726)
at javax.swing.UIManager.getUI(UIManager.java:784)
at javax.swing.JToolTip.updateUI(JToolTip.java:82)
at javax.swing.JToolTip.<init>(JToolTip.java:64)
at javax.swing.JComponent.createToolTip(JComponent.java:2603)
at javax.swing.ToolTipManager.showTipWindow(ToolTipManager.java:257)
at javax.swing.ToolTipManager$insideTimerAction.actionPerformed(ToolTipManager.java:689)
at javax.swing.Timer.fireActionPerformed(Timer.java:271)
at javax.swing.Timer$DoPostEvent.run(Timer.java:201)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:178)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:454)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:100)
Dynamic libraries:
0x7CC00000 - 0x7CC1D000 C:\WINDOWS\SYSTEM\IMAGEHLP.DLL
Heap at VM Abort:
Heap
def new generation total 4608K, used 234K [0x10010000, 0x10510000,
0x10ed0000)
eden space 4096K, 1% used [0x10010000, 0x10021eb0, 0x10410000)
from space 512K, 31% used [0x10490000, 0x104b8a80, 0x10510000)
to space 512K, 0% used [0x10410000, 0x10410000, 0x10490000)
tenured generation total 60544K, used 11740K [0x10ed0000,
0x149f0000, 0x1c010000)
the space 60544K, 19% used [0x10ed0000, 0x11a47348, 0x11a47400,
0x149f0000)
compacting perm gen total 12032K, used 11914K [0x1c010000,
0x1cbd0000, 0x20010000)
the space 12032K, 99% used [0x1c010000, 0x1cbb2ad0, 0x1cbb2c00,
0x1cbd0000)
Local Time = Thu Aug 26 18:58:43 2004
Elapsed Time = 41
#
# The exception above was detected in native code outside the VM
#
# Java VM: Java HotSpot(TM) Client VM (1.4.2_02-b03 mixed mode)
#
Can Any one give me a solution to this problem or way to find out the
cause of the problem,
Thanks and Regards,
Chella.mani
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Gordon Beaton
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| Posted: 2004-9-8 21:34:00 |
Top |
java-programmer >> JVM crashes when calling C++ DLL
On 8 Sep 2004 04:00:04 -0700, chella mani wrote:
> I am calling functions in existing C\C++ program (DLL) through a
> wrapper C++ program (another DLL) from java.
[...]
> My problem is JVM crashes(some times) and gives the following error,
>
> An unexpected exception has been detected in native code outside the
> VM.
> Unexpected Signal : EXCEPTION_ACCESS_VIOLATION (0xc0000005) occurred
> at PC=0x80C2F75
[...]
> Can Any one give me a solution to this problem or way to find out the
> cause of the problem,
There is a pointer error in one of your native methods. For more
information, have a look at questions 16.5 and 16.8 in the comp.lang.c
FAQ:
http://www.eskimo.com/~scs/C-faq/faq.html
/gordon
--
[ do not email me copies of your followups ]
g o r d o n + n e w s @ b a l d e r 1 3 . s e
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Liz
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| Posted: 2004-9-9 6:51:00 |
Top |
java-programmer >> JVM crashes when calling C++ DLL
"Gordon Beaton" <email***@***.com> wrote in message
news:email***@***.com...
> On 8 Sep 2004 04:00:04 -0700, chella mani wrote:
> > I am calling functions in existing C\C++ program (DLL) through a
> > wrapper C++ program (another DLL) from java.
>
> [...]
>
> > My problem is JVM crashes(some times) and gives the following error,
> >
> > An unexpected exception has been detected in native code outside the
> > VM.
> > Unexpected Signal : EXCEPTION_ACCESS_VIOLATION (0xc0000005) occurred
> > at PC=0x80C2F75
>
> [...]
>
> > Can Any one give me a solution to this problem or way to find out the
> > cause of the problem,
>
> There is a pointer error in one of your native methods. For more
> information, have a look at questions 16.5 and 16.8 in the comp.lang.c
> FAQ:
>
This is a feature of C++ whereas it can run anywhere, including amuck.
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chellamani
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| Posted: 2004-9-9 12:38:00 |
Top |
java-programmer >> JVM crashes when calling C++ DLL
"Liz" <email***@***.com> wrote in message news:<j1M%c.269867$8_6.94848@attbi_s04>...
> "Gordon Beaton" <email***@***.com> wrote in message
> news:email***@***.com...
> > On 8 Sep 2004 04:00:04 -0700, chella mani wrote:
> > > I am calling functions in existing C\C++ program (DLL) through a
> > > wrapper C++ program (another DLL) from java.
> >
> > [...]
> >
> > > My problem is JVM crashes(some times) and gives the following error,
> > >
> > > An unexpected exception has been detected in native code outside the
> > > VM.
> > > Unexpected Signal : EXCEPTION_ACCESS_VIOLATION (0xc0000005) occurred
> > > at PC=0x80C2F75
> >
> > [...]
> >
> > > Can Any one give me a solution to this problem or way to find out the
> > > cause of the problem,
> >
> > There is a pointer error in one of your native methods. For more
> > information, have a look at questions 16.5 and 16.8 in the comp.lang.c
> > FAQ:
> >
>
> This is a feature of C++ whereas it can run anywhere, including amuck.
The problem is my wrapper program should to allow the user to use his
existing C\C++ code without any modification. Is it possible to
Prevent the JVM crash in case of any access violation.
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Gordon Beaton
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| Posted: 2004-9-9 17:01:00 |
Top |
java-programmer >> JVM crashes when calling C++ DLL
On 8 Sep 2004 21:37:41 -0700, chella mani wrote:
> The problem is my wrapper program should to allow the user to use his
> existing C\C++ code without any modification. Is it possible to
> Prevent the JVM crash in case of any access violation.
First, you can't catch these errors if the operating system policy is
to kill your process because of them.
Second, if you have native code that corrupts the process memory, you
can't really trust *any* results from the program. Even when the
process doesn't crash, you can't be sure the error hasn't occurred
(but in some more subtle way). The crash is just a symptom, and hiding
it from the user is really the *wrong* approach here.
Would you trust your bank if they used software that attempted to hide
serious errors? Would you fly in such an aircraft?
What is the value of telling the user he doesn't have to modify his
incorrect code?
/gordon
--
[ do not email me copies of your followups ]
g o r d o n + n e w s @ b a l d e r 1 3 . s e
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Chris Uppal
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| Posted: 2004-9-9 18:42:00 |
Top |
java-programmer >> JVM crashes when calling C++ DLL
chella mani wrote:
> The problem is my wrapper program should to allow the user to use his
> existing C\C++ code without any modification.
If you /really/ need that kind of isolation (that the user code can crash
without killing your application) then this is the wrong way to go about it.
You need the user's flaky code to be in a completely different process from
your application, or you /won't/ be isolated from their bugs.
One approach would be to write a small separate program which loads and runs
the DLL, and uses TCP/IP (or anything else that's handy) to communicate back
with the parent application. There are other approaches, it depends on what
you are doing.
-- chris
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chellamani
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| Posted: 2004-9-10 12:42:00 |
Top |
java-programmer >> JVM crashes when calling C++ DLL
Gordon Beaton <email***@***.com> wrote in message news:<email***@***.com>...
> On 8 Sep 2004 21:37:41 -0700, chella mani wrote:
> > The problem is my wrapper program should to allow the user to use his
> > existing C\C++ code without any modification. Is it possible to
> > Prevent the JVM crash in case of any access violation.
>
> First, you can't catch these errors if the operating system policy is
> to kill your process because of them.
>
> Second, if you have native code that corrupts the process memory, you
> can't really trust *any* results from the program. Even when the
> process doesn't crash, you can't be sure the error hasn't occurred
> (but in some more subtle way). The crash is just a symptom, and hiding
> it from the user is really the *wrong* approach here.
>
> Would you trust your bank if they used software that attempted to hide
> serious errors? Would you fly in such an aircraft?
>
> What is the value of telling the user he doesn't have to modify his
> incorrect code?
> /gordon
Yes I agree with you gordon,the user's natvie code runs with out any
problem when using it as stand alone application,but when ever I call
the native code through JNI it kills the entire application.In case of
any access violation I want to show the user that some access
violation has occured and i want to prevent the entire application
getting killed.
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Lans Redmond
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| Posted: 2005-1-3 0:23:00 |
Top |
java-programmer >> JVM crashes when calling C++ DLL
add the -dsa option to the catalina_opts flag
dsa diables system assertions
"chella mani" <email***@***.com> wrote in message
news:email***@***.com...
> hi all,
> I am calling functions in existing C\C++ program (DLL) through a
> wrapper C++ program (another DLL) from java.
>
> ie java <---->Wrapper C++ <-----> Ordinary C++ function
>
> My problem is JVM crashes(some times) and gives the following error,
>
> An unexpected exception has been detected in native code outside the
> VM.
> Unexpected Signal : EXCEPTION_ACCESS_VIOLATION (0xc0000005) occurred
> at PC=0x80C2F75
> Function=[Unknown.]
> Library=(N/A)
>
> NOTE: We are unable to locate the function name symbol for the error
> just occurred. Please refer to release documentation for
> possible
> reason and solutions.
>
>
> Current Java thread:
> at java.lang.Class.getDeclaredMethods0(Native Method)
> at java.lang.Class.privateGetDeclaredMethods(Class.java:1647)
> at java.lang.Class.getMethod0(Class.java:1893)
> at java.lang.Class.getMethod(Class.java:976)
> at javax.swing.UIDefaults.getUI(UIDefaults.java:726)
> at javax.swing.UIManager.getUI(UIManager.java:784)
> at javax.swing.JToolTip.updateUI(JToolTip.java:82)
> at javax.swing.JToolTip.<init>(JToolTip.java:64)
> at javax.swing.JComponent.createToolTip(JComponent.java:2603)
> at javax.swing.ToolTipManager.showTipWindow(ToolTipManager.java:257)
> at
> javax.swing.ToolTipManager$insideTimerAction.actionPerformed(ToolTipManager.java:689)
> at javax.swing.Timer.fireActionPerformed(Timer.java:271)
> at javax.swing.Timer$DoPostEvent.run(Timer.java:201)
> at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:178)
> at java.awt.EventQueue.dispatchEvent(EventQueue.java:454)
> at
> java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201)
> at
> java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
> at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)
> at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
> at java.awt.EventDispatchThread.run(EventDispatchThread.java:100)
>
> Dynamic libraries:
> 0x7CC00000 - 0x7CC1D000 C:\WINDOWS\SYSTEM\IMAGEHLP.DLL
>
> Heap at VM Abort:
> Heap
> def new generation total 4608K, used 234K [0x10010000, 0x10510000,
> 0x10ed0000)
> eden space 4096K, 1% used [0x10010000, 0x10021eb0, 0x10410000)
> from space 512K, 31% used [0x10490000, 0x104b8a80, 0x10510000)
> to space 512K, 0% used [0x10410000, 0x10410000, 0x10490000)
> tenured generation total 60544K, used 11740K [0x10ed0000,
> 0x149f0000, 0x1c010000)
> the space 60544K, 19% used [0x10ed0000, 0x11a47348, 0x11a47400,
> 0x149f0000)
> compacting perm gen total 12032K, used 11914K [0x1c010000,
> 0x1cbd0000, 0x20010000)
> the space 12032K, 99% used [0x1c010000, 0x1cbb2ad0, 0x1cbb2c00,
> 0x1cbd0000)
>
> Local Time = Thu Aug 26 18:58:43 2004
> Elapsed Time = 41
> #
> # The exception above was detected in native code outside the VM
> #
> # Java VM: Java HotSpot(TM) Client VM (1.4.2_02-b03 mixed mode)
> #
>
>
>
> Can Any one give me a solution to this problem or way to find out the
> cause of the problem,
>
> Thanks and Regards,
> Chella.mani
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lredmond
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| Posted: 2005-1-3 11:56:00 |
Top |
java-programmer >> JVM crashes when calling C++ DLL
if not using tomcat then just use the dsa option when you call java
"Lans Redmond" <email***@***.com> wrote in message
news:AdVBd.11528$email***@***.com...
> add the -dsa option to the catalina_opts flag
>
> dsa diables system assertions
>
>
> "chella mani" <email***@***.com> wrote in message
> news:email***@***.com...
>> hi all,
>> I am calling functions in existing C\C++ program (DLL) through a
>> wrapper C++ program (another DLL) from java.
>>
>> ie java <---->Wrapper C++ <-----> Ordinary C++ function
>>
>> My problem is JVM crashes(some times) and gives the following error,
>>
>> An unexpected exception has been detected in native code outside the
>> VM.
>> Unexpected Signal : EXCEPTION_ACCESS_VIOLATION (0xc0000005) occurred
>> at PC=0x80C2F75
>> Function=[Unknown.]
>> Library=(N/A)
>>
>> NOTE: We are unable to locate the function name symbol for the error
>> just occurred. Please refer to release documentation for
>> possible
>> reason and solutions.
>>
>>
>> Current Java thread:
>> at java.lang.Class.getDeclaredMethods0(Native Method)
>> at java.lang.Class.privateGetDeclaredMethods(Class.java:1647)
>> at java.lang.Class.getMethod0(Class.java:1893)
>> at java.lang.Class.getMethod(Class.java:976)
>> at javax.swing.UIDefaults.getUI(UIDefaults.java:726)
>> at javax.swing.UIManager.getUI(UIManager.java:784)
>> at javax.swing.JToolTip.updateUI(JToolTip.java:82)
>> at javax.swing.JToolTip.<init>(JToolTip.java:64)
>> at javax.swing.JComponent.createToolTip(JComponent.java:2603)
>> at javax.swing.ToolTipManager.showTipWindow(ToolTipManager.java:257)
>> at
>> javax.swing.ToolTipManager$insideTimerAction.actionPerformed(ToolTipManager.java:689)
>> at javax.swing.Timer.fireActionPerformed(Timer.java:271)
>> at javax.swing.Timer$DoPostEvent.run(Timer.java:201)
>> at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:178)
>> at java.awt.EventQueue.dispatchEvent(EventQueue.java:454)
>> at
>> java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201)
>> at
>> java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
>> at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)
>> at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
>> at java.awt.EventDispatchThread.run(EventDispatchThread.java:100)
>>
>> Dynamic libraries:
>> 0x7CC00000 - 0x7CC1D000 C:\WINDOWS\SYSTEM\IMAGEHLP.DLL
>>
>> Heap at VM Abort:
>> Heap
>> def new generation total 4608K, used 234K [0x10010000, 0x10510000,
>> 0x10ed0000)
>> eden space 4096K, 1% used [0x10010000, 0x10021eb0, 0x10410000)
>> from space 512K, 31% used [0x10490000, 0x104b8a80, 0x10510000)
>> to space 512K, 0% used [0x10410000, 0x10410000, 0x10490000)
>> tenured generation total 60544K, used 11740K [0x10ed0000,
>> 0x149f0000, 0x1c010000)
>> the space 60544K, 19% used [0x10ed0000, 0x11a47348, 0x11a47400,
>> 0x149f0000)
>> compacting perm gen total 12032K, used 11914K [0x1c010000,
>> 0x1cbd0000, 0x20010000)
>> the space 12032K, 99% used [0x1c010000, 0x1cbb2ad0, 0x1cbb2c00,
>> 0x1cbd0000)
>>
>> Local Time = Thu Aug 26 18:58:43 2004
>> Elapsed Time = 41
>> #
>> # The exception above was detected in native code outside the VM
>> #
>> # Java VM: Java HotSpot(TM) Client VM (1.4.2_02-b03 mixed mode)
>> #
>>
>>
>>
>> Can Any one give me a solution to this problem or way to find out the
>> cause of the problem,
>>
>> Thanks and Regards,
>> Chella.mani
>
>
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Index ‹ java-programmer |
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>
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>
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