Servlet not reloading in tomcat
Hello,
i searched the forum for this but didn't get the answer.
in my server.xml file, the reloadable flag is set to "true" (for the context i am using) and the webapps directory is not in tomcat's classpath (Jason Hunter's book says that such classes are not reloaded)
but, if i change a servlet, it is not being reloaded.
thanks for any ideas
partha
any pointers?
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Need to enable feature of servlet reloading in Tomcat
Hello
I wants to enable autoreload feature in tomcat so that i need not to stop tomcat web server again and again
ThanksHi,
As the above information i tried to add line <DefaultContext reloadable="true" />. But it is not working for me.
Here is my server.xml file.
<?xml version='1.0' encoding='utf-8'?>
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<!-- Note: A "Server" is not itself a "Container", so you may not
define subcomponents such as "Valves" at this level.
Documentation at /docs/config/server.html
-->
<Server port="8005" shutdown="SHUTDOWN">
<!--APR library loader. Documentation at /docs/apr.html -->
<Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" />
<!--Initialize Jasper prior to webapps are loaded. Documentation at /docs/jasper-howto.html -->
<Listener className="org.apache.catalina.core.JasperListener" />
<!-- JMX Support for the Tomcat server. Documentation at /docs/non-existent.html -->
<Listener className="org.apache.catalina.mbeans.ServerLifecycleListener" />
<Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />
<!-- Global JNDI resources
Documentation at /docs/jndi-resources-howto.html
-->
<GlobalNamingResources>
<!-- Editable user database that can also be used by
UserDatabaseRealm to authenticate users
-->
<Resource name="UserDatabase" auth="Container"
type="org.apache.catalina.UserDatabase"
description="User database that can be updated and saved"
factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
pathname="conf/tomcat-users.xml" />
</GlobalNamingResources>
<!-- A "Service" is a collection of one or more "Connectors" that share
a single "Container" Note: A "Service" is not itself a "Container",
so you may not define subcomponents such as "Valves" at this level.
Documentation at /docs/config/service.html
-->
<Service name="Catalina">
<!-- Define properties for each web application -->
<DefaultContext reloadable="true" />
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<!--
<Executor name="tomcatThreadPool" namePrefix="catalina-exec-"
maxThreads="150" minSpareThreads="4"/>
-->
<!-- A "Connector" represents an endpoint by which requests are received
and responses are returned. Documentation at :
Java HTTP Connector: /docs/config/http.html (blocking & non-blocking)
Java AJP Connector: /docs/config/ajp.html
APR (HTTP/AJP) Connector: /docs/apr.html
Define a non-SSL HTTP/1.1 Connector on port 8080
-->
<Connector port="8080" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443" />
<!-- A "Connector" using the shared thread pool-->
<!--
<Connector executor="tomcatThreadPool"
port="8080" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443" />
-->
<!-- Define a SSL HTTP/1.1 Connector on port 8443
This connector uses the JSSE configuration, when using APR, the
connector should be using the OpenSSL style configuration
described in the APR documentation -->
<!--
<Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true"
maxThreads="150" scheme="https" secure="true"
clientAuth="false" sslProtocol="TLS" />
-->
<!-- Define an AJP 1.3 Connector on port 8009 -->
<Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />
<!-- An Engine represents the entry point (within Catalina) that processes
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Documentation at /docs/config/engine.html -->
<!-- You should set jvmRoute to support load-balancing via AJP ie :
<Engine name="Catalina" defaultHost="localhost" jvmRoute="jvm1">
-->
<Engine name="Catalina" defaultHost="localhost">
<!--For clustering, please take a look at documentation at:
/docs/cluster-howto.html (simple how to)
/docs/config/cluster.html (reference documentation) -->
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<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>
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<Host name="localhost" appBase="webapps"
unpackWARs="true" autoDeploy="true"
xmlValidation="false" xmlNamespaceAware="false">
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Documentation at: /docs/config/valve.html -->
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</Engine>
</Service>
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Can anyone tell me what i need to do to enable reloading?
Thanks,
Ram. -
Hi,
I created a servlet & then ran it , it worked fine. After that I modified it so that it should display a different message on browser but its displaying the previous staff. Strangely even if I delete the servlet & then try to access it using a URL , I will see the same stuff which present in the servlet before starting the tomcat. However if I stop tomcat & hen restart it again I will see the modified servlet or error message if servlet not available. How can I get around with this prob of viewing the modified servlet without restarting the tomcat.
Zulfi.add reloadable attribute to the Context entry in conf/server.xml. by default it does not include reloadable, change
<!-- Tomcat Root Context -->
<Context path="" docBase="ROOT" debug="0"/>to
<!-- Tomcat Root Context -->
<Context path="" docBase="ROOT" debug="0" reloadable="true"/>this will tell tomcat to reload the servlet after being modified without restarting server. -
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i have java1.4,tomcat3.3.1 and apache2. i want to connect tomat and apache using mod_jk in debian Linux. when i create a Test apllication in webapps called "TestApplication" with a class TestServlet.class.(this is just a Servlet class to print Hello Servlet)
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</web-app>Andreas -
Hi,
I'm seeing this error in the Tomcat logs upon Tomcat startup:
SEVERE: Error configuring application listener of class com.sun.faces.config.ConfigureListener
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I added this ConfigureListener reference to my conf/web.xml file having perused the Forum for a fix to this error in the Tomcat logs:
.SEVERE: StandardWrapper.Throwable
java.lang.NullPointerException
at javax.faces.webapp.FacesServlet.init(FacesServlet.java:144)
What I don't get is my CLASSPATH env. var. clearly shows jsf-impl.jar. I double-checked the path and that com.sun.faces.config.ConfigureListener is contained in jsf-impl.jar and both looked A-OK.
Also saw someone referencing changing the DOCTYPE references from Faces Config 1.0 (to 1.1) and web-facesconfig_1_0.dtd (to 1_1). Tried this but no improvement.
How could the Tomcat engine say a class isn't there when the CLASSPATH says it is??
What is also interesting is that I have the same JSF app running like a champ under tomcat 5.0.19 and have no reference to ConfigureListener class in the conf/web.xml. Not sure why tomcat 5.5.4 is unhappy with the JSF context when tomcat 5.0.19 isn't??
--TIA for any clarifications, from plutoAdam,
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just installed PS 13 elements and loaded pictures into organizer. after using PS editor now organizer is not reloading. I keep getting error message saying organizer unexpectedly quit, do you want to reopen. When I click on it to reopen it doesn't and I get the same message again. I rebooted computer, still did it, I uninstalled and reinstalled the program and I am still getting the same error message. This is on Mac OS with yosemite. Any Ideas Please!!!
Thread 8:
0 libsystem_kernel.dylib 0x00007fff9219f4de mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff9219e64f mach_msg + 55
2 com.apple.CoreFoundation 0x00007fff97717b34 __CFRunLoopServiceMachPort + 212
3 com.apple.CoreFoundation 0x00007fff97716ffb __CFRunLoopRun + 1371
4 com.apple.CoreFoundation 0x00007fff97716858 CFRunLoopRunSpecific + 296
5 com.apple.AppKit 0x00007fff8e85533b _NSEventThread + 137
6 libsystem_pthread.dylib 0x00007fff974c1268 _pthread_body + 131
7 libsystem_pthread.dylib 0x00007fff974c11e5 _pthread_start + 176
8 libsystem_pthread.dylib 0x00007fff974bf41d thread_start + 13
Thread 9:: cr_scratch
0 libsystem_kernel.dylib 0x00007fff921a4136 __psynch_cvwait + 10
1 com.adobe.CameraRaw 0x000000012122478b 0x120c28000 + 6277003
2 com.adobe.CameraRaw 0x00000001211ad48b 0x120c28000 + 5788811
3 com.adobe.CameraRaw 0x0000000120fad001 0x120c28000 + 3690497
4 libsystem_pthread.dylib 0x00007fff974c1268 _pthread_body + 131
5 libsystem_pthread.dylib 0x00007fff974c11e5 _pthread_start + 176
6 libsystem_pthread.dylib 0x00007fff974bf41d thread_start + 13
Thread 10:
0 libsystem_kernel.dylib 0x00007fff9219f4de mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff9219e64f mach_msg + 55
2 com.apple.CoreFoundation 0x00007fff97717b34 __CFRunLoopServiceMachPort + 212
3 com.apple.CoreFoundation 0x00007fff97716ffb __CFRunLoopRun + 1371
4 com.apple.CoreFoundation 0x00007fff97716858 CFRunLoopRunSpecific + 296
5 com.apple.CoreFoundation 0x00007fff977ccef1 CFRunLoopRun + 97
6 com.adobe.ols.library 0x00000001235ebc86 OLSHTTPTransaction::Execute() + 4166
7 com.adobe.ols.library 0x00000001236174f9 OLSServiceTask::PerformMessageExchangeServerPOST(OLSAutoRefPtr<OLSElement> const&, OLSAutoRefPtr<OLSElement> const&) + 1849
8 com.adobe.ols.library 0x000000012360958a OLSServiceTask::PerformMessageExchangeServer(OLSAutoRefPtr<OLSElement> const&, OLSAutoRefPtr<OLSElement> const&) + 1834
9 com.adobe.ols.library 0x000000012361626c OLSServiceTask::ProcessUnhandledMessageList(OLSAutoRefPtr<OLSElement> const&, OLSAutoRefPtr<OLSElement> const&, OLSAutoRefPtr<OLSElement> const&, OLSMessageOrigin) + 1804
10 com.adobe.ols.library 0x00000001235c885c OLSClientSession::ProcessUnhandledMessageList(OLSAutoRefPtr<OLSElement> const&, OLSAutoRefPtr<OLSElement> const&, OLSAutoRefPtr<OLSElement> const&, OLSMessageOrigin) + 124
11 com.adobe.ols.library 0x00000001235c6921 OLSClientSession::ProcessMessageList(OLSAutoRefPtr<OLSElement> const&, OLSAutoRefPtr<OLSElement> const&, OLSMessageOrigin) + 2593
12 com.adobe.ols.library 0x0000000123608d3a OLSServiceTask::ExecuteStateMessageExchangeServer() + 426
13 com.adobe.ols.library 0x00000001236010cc OLSServiceTask::ExecuteInternal() + 1196
14 com.adobe.ols.library 0x000000012361b22e OLSTask::Execute() + 350
15 com.adobe.ols.library 0x000000012361c874 OLSWorkerThreadTaskManager::ProcessTasks(OLSTaskThread*) + 1300
16 com.adobe.ols.library 0x000000012361b454 OLSTaskThread::Run() + 36
17 com.adobe.ols.library 0x000000012363fd88 OLSThread::ThreadProc(void*) + 54
18 com.apple.CoreServices.CarbonCore 0x00007fff9c7108dc PrivateMPEntryPoint + 58
19 libsystem_pthread.dylib 0x00007fff974c1268 _pthread_body + 131
20 libsystem_pthread.dylib 0x00007fff974c11e5 _pthread_start + 176
21 libsystem_pthread.dylib 0x00007fff974bf41d thread_start + 13
Thread 11:
0 libsystem_kernel.dylib 0x00007fff921a475a __sigwait + 10
1 com.adobe.ElementsOrganizer13 0x000000010dce1a84 0x10cc7e000 + 17185412
2 com.adobe.ElementsOrganizer13 0x000000010dce5d15 0x10cc7e000 + 17202453
3 libsystem_pthread.dylib 0x00007fff974c1268 _pthread_body + 131
4 libsystem_pthread.dylib 0x00007fff974c11e5 _pthread_start + 176
5 libsystem_pthread.dylib 0x00007fff974bf41d thread_start + 13
Thread 12:: com.apple.NSURLConnectionLoader
0 libsystem_kernel.dylib 0x00007fff9219f4de mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff9219e64f mach_msg + 55
2 com.apple.CoreFoundation 0x00007fff97717b34 __CFRunLoopServiceMachPort + 212
3 com.apple.CoreFoundation 0x00007fff97716ffb __CFRunLoopRun + 1371
4 com.apple.CoreFoundation 0x00007fff97716858 CFRunLoopRunSpecific + 296
5 com.apple.CFNetwork 0x00007fff8fcfac80 +[NSURLConnection(Loader) _resourceLoadLoop:] + 434
6 com.apple.Foundation 0x00007fff90df190a __NSThread__main__ + 1345
7 libsystem_pthread.dylib 0x00007fff974c1268 _pthread_body + 131
8 libsystem_pthread.dylib 0x00007fff974c11e5 _pthread_start + 176
9 libsystem_pthread.dylib 0x00007fff974bf41d thread_start + 13
Thread 13:: com.apple.CFSocket.private
0 libsystem_kernel.dylib 0x00007fff921a43fa __select + 10
1 libsystem_pthread.dylib 0x00007fff974c1268 _pthread_body + 131
2 libsystem_pthread.dylib 0x00007fff974c11e5 _pthread_start + 176
3 libsystem_pthread.dylib 0x00007fff974bf41d thread_start + 13
Thread 14:
0 libsystem_kernel.dylib 0x00007fff921a4136 __psynch_cvwait + 10
1 com.adobe.ElementsOrganizer13 0x000000010dce02fd 0x10cc7e000 + 17179389
2 com.adobe.ElementsOrganizer13 0x000000010cd34e19 0x10cc7e000 + 749081
3 com.adobe.ElementsOrganizer13 0x000000010dce5d15 0x10cc7e000 + 17202453
4 libsystem_pthread.dylib 0x00007fff974c1268 _pthread_body + 131
5 libsystem_pthread.dylib 0x00007fff974c11e5 _pthread_start + 176
6 libsystem_pthread.dylib 0x00007fff974bf41d thread_start + 13
Thread 15:
0 libsystem_kernel.dylib 0x00007fff921a4136 __psynch_cvwait + 10
1 com.adobe.ElementsOrganizer13 0x000000010dce02fd 0x10cc7e000 + 17179389
2 com.adobe.ElementsOrganizer13 0x000000010cd34e19 0x10cc7e000 + 749081
3 com.adobe.ElementsOrganizer13 0x000000010dce5d15 0x10cc7e000 + 17202453
4 libsystem_pthread.dylib 0x00007fff974c1268 _pthread_body + 131
5 libsystem_pthread.dylib 0x00007fff974c11e5 _pthread_start + 176
6 libsystem_pthread.dylib 0x00007fff974bf41d thread_start + 13
Thread 16:: JavaScriptCore::BlockFree
0 libsystem_kernel.dylib 0x00007fff921a4136 __psynch_cvwait + 10
1 libc++.1.dylib 0x00007fff8fb2ad2e std::__1::condition_variable::__do_timed_wait(std::__1::unique_lock<std::__1::mutex>&, std::__1::chrono::time_point<std::__1::chrono::system_clock, std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000000000l> > >) + 126
2 com.apple.JavaScriptCore 0x00007fff99593aaa JSC::BlockAllocator::waitForDuration(std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000l> >) + 170
3 com.apple.JavaScriptCore 0x00007fff993828f4 JSC::BlockAllocator::blockFreeingThreadMain() + 84
4 com.apple.JavaScriptCore 0x00007fff9937814f WTF::wtfThreadEntryPoint(void*) + 15
5 libsystem_pthread.dylib 0x00007fff974c1268 _pthread_body + 131
6 libsystem_pthread.dylib 0x00007fff974c11e5 _pthread_start + 176
7 libsystem_pthread.dylib 0x00007fff974bf41d thread_start + 13
Thread 17:: JavaScriptCore::Marking
0 libsystem_kernel.dylib 0x00007fff921a4136 __psynch_cvwait + 10
1 libc++.1.dylib 0x00007fff8fb2ac95 std::__1::condition_variable::wait(std::__1::unique_lock<std::__1::mutex>&) + 47
2 com.apple.JavaScriptCore 0x00007fff99382f1b JSC::GCThread::waitForNextPhase() + 171
3 com.apple.JavaScriptCore 0x00007fff99382d78 JSC::GCThread::gcThreadMain() + 88
4 com.apple.JavaScriptCore 0x00007fff9937814f WTF::wtfThreadEntryPoint(void*) + 15
5 libsystem_pthread.dylib 0x00007fff974c1268 _pthread_body + 131
6 libsystem_pthread.dylib 0x00007fff974c11e5 _pthread_start + 176
7 libsystem_pthread.dylib 0x00007fff974bf41d thread_start + 13
Thread 18:: JavaScriptCore::Marking
0 libsystem_kernel.dylib 0x00007fff921a4136 __psynch_cvwait + 10
1 libc++.1.dylib 0x00007fff8fb2ac95 std::__1::condition_variable::wait(std::__1::unique_lock<std::__1::mutex>&) + 47
2 com.apple.JavaScriptCore 0x00007fff99382f1b JSC::GCThread::waitForNextPhase() + 171
3 com.apple.JavaScriptCore 0x00007fff99382d78 JSC::GCThread::gcThreadMain() + 88
4 com.apple.JavaScriptCore 0x00007fff9937814f WTF::wtfThreadEntryPoint(void*) + 15
5 libsystem_pthread.dylib 0x00007fff974c1268 _pthread_body + 131
6 libsystem_pthread.dylib 0x00007fff974c11e5 _pthread_start + 176
7 libsystem_pthread.dylib 0x00007fff974bf41d thread_start + 13
Thread 19:: JavaScriptCore::Marking
0 libsystem_kernel.dylib 0x00007fff921a4136 __psynch_cvwait + 10
1 libc++.1.dylib 0x00007fff8fb2ac95 std::__1::condition_variable::wait(std::__1::unique_lock<std::__1::mutex>&) + 47
2 com.apple.JavaScriptCore 0x00007fff99382f1b JSC::GCThread::waitForNextPhase() + 171
3 com.apple.JavaScriptCore 0x00007fff99382d78 JSC::GCThread::gcThreadMain() + 88
4 com.apple.JavaScriptCore 0x00007fff9937814f WTF::wtfThreadEntryPoint(void*) + 15
5 libsystem_pthread.dylib 0x00007fff974c1268 _pthread_body + 131
6 libsystem_pthread.dylib 0x00007fff974c11e5 _pthread_start + 176
7 libsystem_pthread.dylib 0x00007fff974bf41d thread_start + 13
Thread 0 crashed with X86 Thread State (64-bit):
rax: 0x00000000000000b0 rbx: 0x00006080000b4460 rcx: 0x00007fff52f7da08 rdx: 0x00007fff52f7d8c0
rdi: 0x00006080001d31a0 rsi: 0x0000000000000000 rbp: 0x00007fff52f7d860 rsp: 0x00007fff52f7d830
r8: 0x00007fff52f7d9d8 r9: 0x00007fff52f7d9a0 r10: 0x0000000000000000 r11: 0x0000000110825b90
r12: 0x00007fff52f7d9a0 r13: 0x00007fff52f7e0e8 r14: 0x00007fff52f7d8c0 r15: 0x00006080000b4460
rip: 0x0000000110825ba6 rfl: 0x0000000000010206 cr2: 0x0000000000000000
Logical CPU: 1
Error Code: 0x00000004
Trap Number: 14 -
Firefox 3.6.3 crashed and would not reload as the system informed that firefox was already running. Rebooting had no effect. 3.6.4 was downloaded and installed. It would not run for the same reason. Windows XP was then upgraded to SP2. No change. 3.6.4 was uninstalled with no problem but 3.6.3 refuses to install. (When 'remove' is clicked, there is disc activity for about a second but then all stops.) No files have been deleted by me. There is no indication that I can see inspecting 'processes' or msconfig to indicate that Firefox is running.
See:
http://kb.mozillazine.org/Recovering_a_missing_profile
http://kb.mozillazine.org/Profile_in_use -
Page not reloading even if page is marked as no cache
Web pages will not reload on visit even if the meta information specifies:
<meta http-equiv="Pragma" content="no-cache" /> and
<meta http-equiv="Expires" content="0" />
Page shown is last visit from cache instead.It is a firefox 5.0 cookies and cache related bug see: https://support.mozilla.com/en-US/questions/839553
We have the same issue in our site at http://www.morsmal.org when changing languages.
Delete cache and cookies at the *same* time and you will get some temporally control.. but you will need to do so every time you visit a site using advanced cookies routines :-( -
System.out.println not working in Tomcat-4.1.x
System.out.println not working in Tomcat-4.1.24. Any settings has to be enabled??? I am using tomcat for Solaris
I think u can use ServletContext.log() to output info instased.
-
How to get firefox to return to previous link and not reload it
When viewing content from a page in a tab, clicking the back button causes the previous page to reload in stead of just returning to it. That makes it impossible (without opening the info in a new tab) to return to a page and click the next item you want to view because it is no longer there.
Also, sometimes you get the message that the previous page is not available with a "try again" button.
I just want the back button to return to the previous page and NOT reload it.
I'm hoping there's an about:config setting that fixes this.
Version 32.0.3
TIAIn order to change your Firefox Configuration please do the following steps :
# In the [[Location bar autocomplete|Location bar]], type '''about:config''' and press '''Enter'''. The about:config "''This might void your warranty!''" warning page may appear.
# Click '''I'll be careful, I promise!''' to continue to the about:config page.
browser.cache.check_doc_frequency
Set how often to check accuracy of cached documents
* 0 : Once per session
* 1 : Each time
* 2 : Never
* 3 : When appropriate/automatically -
Servlet not working...
i'm running tomcat 4.0.1 on IIS and i haven't been able to get my servlet to work.
i'm thinking that it has something to do with where i am placing my servlet, or my directory structure.
my applet is run out of the directory "\\server\\wwwroot$\\testDir\\"
and my servlet is in the directory "\\server\\tomcat$\\webapps\\ROOT\\WEB-INF\\classes\\"
here is my applet code for calling the servlet....
try
URL url = new URL("http://www2.homepage.com/serlvet/servletOne");
URLConnection conn = url.openConnection();
InputStream inputStreamFromServlet = conn.getInputStream();
catch(IOException io) { io.printStackTrace(); }
here is my servlet code....
public class servletOne extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
try
FileWriter f = new FileWriter("\\server\\wwwroot$\\testDir\\test2.htm");
f.write("testing");
f.flush();
f.close();
catch(IOException io) { io.printStackTrace(); }
the error i get when i try to run it is a FileNotFoundException.
i believe that this is the proper location for my servlet, but does the tomcat directory have to be within the wwwroot$ directory, in order for it to work?
any help would be greatly appreciated
thanks
AndySeems that FileWriter cannot find test2.htm file. The path for FileWriter constructor can be any absolute system dependent path. So you can use "c:\\server\\wwwroot\\testDir\\test2.htm".
Regards,
Ignat
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