Why the exception is being caught - Suggestion is required.

hi,
Acording to the knowledge i have both theoretical and practial
when a method declares that it throws an ExceptionType then that method never handles that exception at all even though there exists a catch(Exception e) block in the try block.
The above scenario and ethics is violated when i run the following program.
I want to knw why the Exception block is catching the IllegalArgumentException ?
public class TestClass {
private void testMethod() throws IllegalArgumentException {
try {
int i = 0;
throw new IllegalArgumentException("IA");
} catch (Exception e) {
System.out.println("Test message 2");
e.printStackTrace();
public static void main(String[] args) {
try {
new TestClass().testMethod();
} catch (IllegalArgumentException iae) {
System.out.println("Exception caught in main method");
When I run the above program the exception being thrown is caught in the testMethod only and the message Test message 2" is being printed
Why is it happening ?
Thanx in advance
Mahesh

Hi,
What ever u said is not real. When a method declares that it throws an exception it will never be caught by the generic Exception method.
This what is happened.
Generally in my programming i throw a BusinnesException when input data violates some business exception. ( I declare that my method throws BusinessException ).
I also catch Exception as generic to avoid abnormal termination due to other exception causes.
What i knw is that if a method declares that it is throws an exception ti will never handle that even though it has a catch block to catch parent exception class
mahesh

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Hi,
I am writing a program that uses some code that I wrote and some code that others wrote. In one part of the code, an exception often comes up in the part of code that other people wrote. They handle that exception themselves by printing the stack trace. However, I do not want the stack trace to be printed out. The exception is already handled so if I put in a catch block it does nothing.
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Your problem description is perfectly clear. 10/10.
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[4] __Crun::ex_throw(0xfb66afd0, 0x1460bf8, 0x7ead20, 0x0, 0x16538, 0x1), at 0xfb6558bc
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Thanks in advance,
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Exception (extends Throwable) - checked exception
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<![CDATA[
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CREATE OR REPLACE FUNCTION qq (v_id NUMBER)
RETURN NUMBER
IS
sal NUMBER;
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SELECT salary
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RETURN sal;
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THEN
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3 END;
4 /
NO such ID for any Employee in this company
BEGIN
ERROR at line 1:
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Wrote file afiedt.buf
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Owen Thomas wrote:
jverd wrote:
Owen Thomas wrote:
One must assume that no response implies that there is no substantial difference, That's a pretty silly assumption.No it isn't.Yes, as a matter of fact it's totally ridiculous to think that the only reason someone doesn't respond to you is because you were correct. Believe it or not, people do have lives outside this forum, and proving something to you is not the center of our respective universes.
and that matters pertaining to whether one chooses to use an iterator in a while loop or a copy of a collection in a foreach loop are... trivial matters of style.There's also the fact that one creates a copy of the collection and the other does not. That could be a significant cost in time and space.Surely an iterator must also have a collection over which it iterates. Yeah, the collection that already exists. What you're doing is creating an additional one beyond that, which is totally unnecessary here.
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I am facing a problem while deploying an Entity bean in iPlanet(sp3).I have attached the exception thrown.Why has this exception occured?

[04/Dec/2001 10:54:00:2] error: EBFP-marshal_internal: internal exception caught in kcp skeleton, ex
ception = java.lang.NullPointerException
[04/Dec/2001 10:54:00:2] error: Exception Stack Trace:
java.lang.NullPointerException
at java.util.Hashtable.get(Hashtable.java:321)
at com.netscape.server.ejb.SQLPersistenceManager.<init>(Unknown Source)
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at com.netscape.server.ejb.EntityDelegateManagerImpl.getPersistenceManager(Unknown Source)
at com.netscape.server.ejb.EntityDelegateManagerImpl.doPersistentFind(Unknown Source)
at com.netscape.server.ejb.EntityDelegateManagerImpl.find(Unknown Source)
at com.kivasoft.eb.EBHomeBase.findSingleByParms(Unknown Source)
at samples.test.ejb.Entity.ejb_home_samples_test_ejb_Entity_TestEntityBean.findByPrimaryKey(
ejb_home_samples_test_ejb_Entity_TestEntityBean.java:126)
at samples.test.ejb.Entity.ejb_kcp_skel_TestEntityHome.findByPrimaryKey__samples_test_ejb_En
tity_TestEntity__int(ejb_kcp_skel_TestEntityHome.java:266)
at com.kivasoft.ebfp.FPRequest.invokenative(Native Method)
at com.kivasoft.ebfp.FPRequest.invoke(Unknown Source)
at samples.test.ejb.Entity.ejb_kcp_stub_TestEntityHome.findByPrimaryKey(ejb_kcp_stub_TestEnt
ityHome.java:338)
at samples.test.ejb.Entity.ejb_stub_TestEntityHome.findByPrimaryKey(ejb_stub_TestEntityHome.
java:85)
at samples.test.ejb.TestEJB.getGreeting(TestEJB.java:51)

Hi,
I think you are trying to test the Hello world EJB example shipped with the product. As a first
step I would recomend you to go through every line of the document on deploying this application,
since, I too have experienced many errors while trying to deploy the sample applications, but on
following the documentation, I subsequently overcame all the errors and have been working with the
applications. So please follow the steps in documentation and let me know, if you still encounter any
issues.
Regards
Raj
Sandhya S wrote:
I am facing a problem while deploying an Entity bean in iPlanet(sp3).I
have attached the exception thrown.Why has this exception occured?
[04/Dec/2001 10:54:00:2] error: EBFP-marshal_internal: internal
exception caught in kcp skeleton, ex
ception = java.lang.NullPointerException
[04/Dec/2001 10:54:00:2] error: Exception Stack Trace:
java.lang.NullPointerException
at java.util.Hashtable.get(Hashtable.java:321)
at
com.netscape.server.ejb.SQLPersistenceManager.<init>(Unknown Source)
at
com.netscape.server.ejb.SQLPersistenceManagerFactory.newInstance(Unknown
Source)
at
com.netscape.server.ejb.EntityDelegateManagerImpl.getPersistenceManager(Unknown
Source)
at
com.netscape.server.ejb.EntityDelegateManagerImpl.doPersistentFind(Unknown
Source)
at
com.netscape.server.ejb.EntityDelegateManagerImpl.find(Unknown Source)
at com.kivasoft.eb.EBHomeBase.findSingleByParms(Unknown
Source)
at
samples.test.ejb.Entity.ejb_home_samples_test_ejb_Entity_TestEntityBean.findByPrimaryKey(
ejb_home_samples_test_ejb_Entity_TestEntityBean.java:126)
at
samples.test.ejb.Entity.ejb_kcp_skel_TestEntityHome.findByPrimaryKey__samples_test_ejb_En
tity_TestEntity__int(ejb_kcp_skel_TestEntityHome.java:266)
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Exception is not caught in the catch.

Hi,
In my application an exception is thrown but it doesn get caught in the inner catch but at the outermost catch.
809 throw Exception("Cannot Assign", 1120,)
(dbx) next
dbx: warning: can't find symbolic information for thrown type (missing N_LSYM/YR stab?)
dbx: warning: can't find symbolic information for thrown type (missing N_LSYM/YR stab?)
t@3 (l@3) exception will transfer flow to or past '_ex_debug_handshake1'
Use step or next to get to the catch location
stopped in __exdbg_notify_of_throw at 0xfb794a3c
0xfb794a3c: __exdbg_notify_of_throw : retl
dbx: warning: can't find symbolic information for thrown type (missing N_LSYM/YR stab?)
(dbx) where
current thread: t@3
=>[1] SelectionImpl::AssignCart(this = 0x4ab9f8, cart = CLASS), line 809 in "RouteImpl.cpp"
[2] Selection::AssignCart(this = 0x556de8, cart = CLASS), line 477 in "Route.cpp"
[3] CaseBase::RetailRoute(this = 0x4508d0), line 1595 in "CaseBase.cpp"
[4] CaseBase::Assignment(this = 0x4508d0), line 1542 in "CaseBase.cpp"
[5] CaseBase::acceptCart(this = 0x4508d0, cartNbr = CLASS), line 1175 in "CaseBase.cpp"
[6] CaseIF::acceptCart(this = 0x472f40, cartNbr = 0x4c66b8 "00010", error = CLASS), line 515 in "CaseIF.cpp"
AssignCart throws an exception which should get caught in CaseBase::AssignCart instead it gets caught in the catch block of CaseIF::acceptCart.
Thanks in advance for your help.
Thanks,
Santosh A.

Exceptions/Errors are thrown and catch the same for static and non-static methods.
You cannot have fields or methods which are "outside" a class.
The only thing "outside" a class is a package, AFAIK.
The reason your exception is going to the console if because the exception is not being caught.
So is there anyway I can catch this exception and do a gracefully exit using the a static method?You need to place a try catch for this exception. Have a look at the stack trace to see where you could place this to catch the exception.

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<Edited By Host>

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