Re: ServletOutputStream gives null pointer in v5.1.0.5 but not in v5.0.18
Solved it. I should have checked the Tapestry Wiki first before posting,
sorry about that.
http://wiki.apache.org/tapestry/Tapestry5HowToStreamAnExistingBinaryFile
Still I don't know what changed in between versions, but I can live with
that.
Marinus
Marinus Maris schreef:
I post this mail again, now with the stack trace added below the code:
To get a file from disk I wrote this code below. It works perfectly in
version 5.0.18 but it generates a null pointer in v5.1.0.5. I checked
the release notes to no avail. What's going on here? Apparently a gzip
service is needed now?
Object onActionFromGetParticipantsFile() {
String method = "get";
try {
FileInputStream fInput = new FileInputStream(fileName);
byte[] bytes = new byte[fInput.available()];
fInput.read(bytes, 0, fInput.available());
if (bytes != null) {
ServletOutputStream stream =
response.getHTTPServletResponse().getOutputStream();
response.getHTTPServletResponse().setContentType("text/plain");
response.getHTTPServletResponse().setContentLength(bytes.length);
response.getHTTPServletResponse().setHeader("Content-Disposition",
method + ";filename=" +fileName;
stream.write(bytes);
line 446 in the code: Here it comes up with the null pointer,
although the stream object exists as I checked that.
stream.flush();
stream.close();
return response;
}
} catch (Exception e) {
e.printStackTrace();
}
return new TextStreamResponse("text/plain", String.format("file
" + fileName+ " not found"));
java.lang.NullPointerException
at
org.apache.tapestry5.internal.services.ResponseCompressionAnalyzerImpl.isCompressable(ResponseCompressionAnalyzerImpl.java:65)
at
$ResponseCompressionAnalyzer_1236c9345b8.isCompressable($ResponseCompressionAnalyzer_1236c9345b8.java)
at
org.apache.tapestry5.internal.gzip.BufferedGZipOutputStream.openResponseOutputStream(BufferedGZipOutputStream.java:77)
at
org.apache.tapestry5.internal.gzip.BufferedGZipOutputStream.checkForCutover(BufferedGZipOutputStream.java:70)
at
org.apache.tapestry5.internal.gzip.BufferedGZipOutputStream.write(BufferedGZipOutputStream.java:108)
at
mobiquete.pages.SurveyDeploy.onActionFromGetParticipantsFile(SurveyDeploy.java:446)
at
mobiquete.pages.SurveyDeploy.dispatchComponentEvent(SurveyDeploy.java)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.dispatchEvent(ComponentPageElementImpl.java:902)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.triggerContextEvent(ComponentPageElementImpl.java:1081)
at
org.apache.tapestry5.internal.services.ComponentEventRequestHandlerImpl.handle(ComponentEventRequestHandlerImpl.java:75)
at
org.apache.tapestry5.internal.services.ImmediateActionRenderResponseFilter.handle(ImmediateActionRenderResponseFilter.java:42)
at
$ComponentEventRequestHandler_1236c934654.handle($ComponentEventRequestHandler_1236c934654.java)
at
org.apache.tapestry5.internal.services.AjaxFilter.handle(AjaxFilter.java:42)
at
$ComponentEventRequestHandler_1236c934654.handle($ComponentEventRequestHandler_1236c934654.java)
at
org.apache.tapestry5.upload.internal.services.UploadExceptionFilter.handle(UploadExceptionFilter.java:75)
at
$ComponentEventRequestHandler_1236c934654.handle($ComponentEventRequestHandler_1236c934654.java)
at
org.apache.tapestry5.services.TapestryModule$36.handle(TapestryModule.java:2164)
at
$ComponentEventRequestHandler_1236c934654.handle($ComponentEventRequestHandler_1236c934654.java)
at
$ComponentEventRequestHandler_1236c9345d9.handle($ComponentEventRequestHandler_1236c9345d9.java)
at
org.apache.tapestry5.internal.services.ComponentRequestHandlerTerminator.handleComponentEvent(ComponentRequestHandlerTerminator.java:43)
at
$ComponentRequestHandler_1236c9345cd.handleComponentEvent($ComponentRequestHandler_1236c9345cd.java)
at
org.apache.tapestry5.internal.services.ComponentEventDispatcher.dispatch(ComponentEventDispatcher.java:46)
at $Dispatcher_1236c9345cf.dispatch($Dispatcher_1236c9345cf.java)
at $Dispatcher_1236c9345c5.dispatch($Dispatcher_1236c9345c5.java)
at
org.apache.tapestry5.services.TapestryModule$RequestHandlerTerminator.service(TapestryModule.java:245)
at mobiquete.services.AppModule$1.service(AppModule.java:96)
at
$RequestFilter_1236c9345c4.service($RequestFilter_1236c9345c4.java)
at
$RequestHandler_1236c9345c6.service($RequestHandler_1236c9345c6.java)
at
org.apache.tapestry5.internal.services.RequestErrorFilter.service(RequestErrorFilter.java:26)
at
$RequestHandler_1236c9345c6.service($RequestHandler_1236c9345c6.java)
at
org.apach
Re: ServletOutputStream gives null pointer in v5.1.0.5 but not in v5.0.18
I post this mail again, now with the stack trace added below the code:
To get a file from disk I wrote this code below. It works perfectly in
version 5.0.18 but it generates a null pointer in v5.1.0.5. I checked
the release notes to no avail. What's going on here? Apparently a gzip
service is needed now?
Object onActionFromGetParticipantsFile() {
String method = "get";
try {
FileInputStream fInput = new FileInputStream(fileName);
byte[] bytes = new byte[fInput.available()];
fInput.read(bytes, 0, fInput.available());
if (bytes != null) {
ServletOutputStream stream =
response.getHTTPServletResponse().getOutputStream();
response.getHTTPServletResponse().setContentType("text/plain");
response.getHTTPServletResponse().setContentLength(bytes.length);
response.getHTTPServletResponse().setHeader("Content-Disposition",
method + ";filename=" +fileName;
stream.write(bytes);
line 446 in the code: Here it comes up with the null pointer, although
the stream object exists as I checked that.
stream.flush();
stream.close();
return response;
}
} catch (Exception e) {
e.printStackTrace();
}
return new TextStreamResponse("text/plain", String.format("file "
+ fileName+ " not found"));
java.lang.NullPointerException
at
org.apache.tapestry5.internal.services.ResponseCompressionAnalyzerImpl.isCompressable(ResponseCompressionAnalyzerImpl.java:65)
at
$ResponseCompressionAnalyzer_1236c9345b8.isCompressable($ResponseCompressionAnalyzer_1236c9345b8.java)
at
org.apache.tapestry5.internal.gzip.BufferedGZipOutputStream.openResponseOutputStream(BufferedGZipOutputStream.java:77)
at
org.apache.tapestry5.internal.gzip.BufferedGZipOutputStream.checkForCutover(BufferedGZipOutputStream.java:70)
at
org.apache.tapestry5.internal.gzip.BufferedGZipOutputStream.write(BufferedGZipOutputStream.java:108)
at
mobiquete.pages.SurveyDeploy.onActionFromGetParticipantsFile(SurveyDeploy.java:446)
at
mobiquete.pages.SurveyDeploy.dispatchComponentEvent(SurveyDeploy.java)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.dispatchEvent(ComponentPageElementImpl.java:902)
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.triggerContextEvent(ComponentPageElementImpl.java:1081)
at
org.apache.tapestry5.internal.services.ComponentEventRequestHandlerImpl.handle(ComponentEventRequestHandlerImpl.java:75)
at
org.apache.tapestry5.internal.services.ImmediateActionRenderResponseFilter.handle(ImmediateActionRenderResponseFilter.java:42)
at
$ComponentEventRequestHandler_1236c934654.handle($ComponentEventRequestHandler_1236c934654.java)
at
org.apache.tapestry5.internal.services.AjaxFilter.handle(AjaxFilter.java:42)
at
$ComponentEventRequestHandler_1236c934654.handle($ComponentEventRequestHandler_1236c934654.java)
at
org.apache.tapestry5.upload.internal.services.UploadExceptionFilter.handle(UploadExceptionFilter.java:75)
at
$ComponentEventRequestHandler_1236c934654.handle($ComponentEventRequestHandler_1236c934654.java)
at
org.apache.tapestry5.services.TapestryModule$36.handle(TapestryModule.java:2164)
at
$ComponentEventRequestHandler_1236c934654.handle($ComponentEventRequestHandler_1236c934654.java)
at
$ComponentEventRequestHandler_1236c9345d9.handle($ComponentEventRequestHandler_1236c9345d9.java)
at
org.apache.tapestry5.internal.services.ComponentRequestHandlerTerminator.handleComponentEvent(ComponentRequestHandlerTerminator.java:43)
at
$ComponentRequestHandler_1236c9345cd.handleComponentEvent($ComponentRequestHandler_1236c9345cd.java)
at
org.apache.tapestry5.internal.services.ComponentEventDispatcher.dispatch(ComponentEventDispatcher.java:46)
at $Dispatcher_1236c9345cf.dispatch($Dispatcher_1236c9345cf.java)
at $Dispatcher_1236c9345c5.dispatch($Dispatcher_1236c9345c5.java)
at
org.apache.tapestry5.services.TapestryModule$RequestHandlerTerminator.service(TapestryModule.java:245)
at mobiquete.services.AppModule$1.service(AppModule.java:96)
at
$RequestFilter_1236c9345c4.service($RequestFilter_1236c9345c4.java)
at
$RequestHandler_1236c9345c6.service($RequestHandler_1236c9345c6.java)
at
org.apache.tapestry5.internal.services.RequestErrorFilter.service(RequestErrorFilter.java:26)
at
$RequestHandler_1236c9345c6.service($RequestHandler_1236c9345c6.java)
at
org.apache.tapestry5.services.TapestryModule$4.service(TapestryModule.java:778)
at
$RequestHandler_1236c9345c6.service($RequestHandler_1236c9345c6.java)
at
org.apache.tapestry5.services.TapestryModule$3.service(TapestryModule.java:767)
at
$RequestHandler_1236c9345c6.service($RequestHandler_1236c9345c6.java)
Re: ServletOutputStream gives null pointer in v5.1.0.5 but not in v5.0.18
Em Sat, 29 Aug 2009 07:26:50 -0300, Marinus Maris escreveu: Hi Hi! To get a file from disk I wrote this code below. It works perfectly in version 5.0.18 but it generates a null pointer in v5.1.0.5. I checked the release notes to no avail. What's going on here? To begin with, where's the stack trace? In what line does the NPE happen? -- Thiago H. de Paula Figueiredo Independent Java consultant, developer, and instructor http://www.arsmachina.com.br/thiago - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
ServletOutputStream gives null pointer in v5.1.0.5 but not in v5.0.18
Hi
To get a file from disk I wrote this code below. It works perfectly in
version 5.0.18 but it generates a null pointer in v5.1.0.5. I checked
the release notes to no avail. What's going on here?
Object onActionFromGetParticipantsFile() {
String method = "get";
try {
FileInputStream fInput = new FileInputStream(fileName);
byte[] bytes = new byte[fInput.available()];
fInput.read(bytes, 0, fInput.available());
if (bytes != null) {
ServletOutputStream stream =
response.getHTTPServletResponse().getOutputStream();
response.getHTTPServletResponse().setContentType("text/plain");
response.getHTTPServletResponse().setContentLength(bytes.length);
response.getHTTPServletResponse().setHeader("Content-Disposition",
method + ";filename=" +fileName;
stream.write(bytes);
Here it comes up with a null pointer, although the streanm object
exists as I checked that !
stream.flush();
stream.close();
return response;
}
} catch (Exception e) {
System.out.println("onActionFromGetFile; " + e);
}
return new TextStreamResponse("text/plain", String.format("file
" + fileName+ " not found"));
Marinus
-
To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
For additional commands, e-mail: users-h...@tapestry.apache.org
