TC 4 <-oreillyMultipart- > TC5: Corrupt form data: premature ending 2003-12-04 - By Dirk Griesbach
Back
Another issue came up comparing TC4 and TC5:
using the oreilly multipart lib on TC5 causes the error
"...Corrupt form data: premature ending" on POST uploads.
As stated in the FAQ's at http://www.servlets.com/cos/faq.html
this problem is merely due to the webcontainer and has been fixed with
Tomcat 4.
I tested and can state that this problem doesn't occur with TC4.
But it is apparent with TC5 again.
Will this be fixed ?
grisi
-- -- Original Message -- --
From: Shapira, Yoav <Yoav.Shapira@(protected)>
To: Tomcat Users List <tomcat-user@(protected)>
Sent: Wednesday, December 03, 2003 3:53 PM
Subject: RE: TC 4 <-oreillyMultipart-> TC5
Howdy,
I don't have an immediate idea, which is worrisome (to me at least ;)).
Let's try to not put this oreilly jar in commons/lib, but instead in
WEB-INF/lib.
Yoav Shapira
Millennium ChemInformatics
>-- --Original Message-- --
>From: Dirk Griesbach [mailto:dgriesbach@(protected)]
>Sent: Wednesday, December 03, 2003 9:44 AM
>To: Tomcat Users List
>Subject: Re: TC 4 <-oreillyMultipart-> TC5
>
>Hi Yoav,
>
>the 'full' error trace is:
>"
>java.lang.IllegalAccessError  : tried to access method
>com.oreilly.servlet.multipart.Part.<init>(Ljava/lang/String;)V from
class
>com.oreilly.servlet.multipart.ParamPart
> at com.oreilly.servlet.multipart.ParamPart.<init>(ParamPart.java:42)
> at
>com.oreilly.servlet.multipart.MultipartParser.readNextPart(MultipartPar
ser.
>j
>ava:341)
>...< the calling servlet method >...
>"
>the source code mentioned reads:
>
>STARTSNIP of class ParamPart>>>>>>>>>>>>>>>>
>
>public class ParamPart extends Part {
>
> /** contents of the parameter */
> private byte[] value;
> HashMap hashMap;
> private String encoding;
>
> /**
> * Constructs a parameter part; this is called by the parser.
> *
> .......
> */
> ParamPart(HashMap hashMap, String name, ServletInputStream in,
> String boundary, String encoding) throws IOException {
> super(name);
<-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---
>start of error-trace
> this.encoding = encoding;
>......
><<<<<<<<<<<<<<ENDSNIP class 'ParamPart'
>
>STARTSNIP of class 'Part' >>>>>>>>>>>>>>>>
>....
>public abstract class Part {
> private String name;
>
> /**
> * Constructs an upload part with the given name.
> */
> Part(String name) { <-- ---- ---- ---- ---- ---- -- this constructor
>being called causes the error I think
>
>this.name = name;
> }
>
> /**
> * Returns the name of the form element that this Part corresponds
to.
> *
> * @(protected) the name of the form element that this Part corresponds
to.
> */
> public String getName() {
> return name;
> }
>.....
><<<<<<<<<<<<<< ENDSNIP class 'ParamPart'
>
>I have used TC 5 'as is' after standard installation; no changes to
>server.xml. Same web.xml.
>Same with TC4. The multipartlibrary both times (TC4 and TC5) being in
>"../common/lib"
>
>Same (web-)application, different results. Any ideas ?
>
>grisi
>
>-- -- Original Message -- --
>From: Shapira, Yoav <Yoav.Shapira@(protected)>
>To: Tomcat Users List <tomcat-user@(protected)>
>Sent: Wednesday, December 03, 2003 3:08 PM
>Subject: RE: TC 4 <-oreillyMultipart-> TC5
>
>
>
>Howdy,
>Class ParamPart is public and its constructor is public as well?
>Strange. Are you running with different security settings? Did you
put
>the library in a different place?
>
>Yoav Shapira
>Millennium ChemInformatics
>
>
>>-- --Original Message-- --
>>From: Dirk Griesbach [mailto:dgriesbach@(protected)]
>>Sent: Wednesday, December 03, 2003 8:28 AM
>>To: Tomcat Users List
>>Subject: TC 4 <-oreillyMultipart-> TC5
>>
>>Hi folks,
>>I encountered a strange behaviour using 'oreilly's' multipartlibary
>(from
>>Nov,2002):
>>
>>It works fine on TC 4.1.27 but exactly the same servlet and library
>with TC
>>5.0.12 and 5.0.14
>>(just copied them) the error log reads:
>>
>>"java.lang.IllegalAccessError :
>>tried to access method
>>com.oreilly.servlet.multipart.Part.<init>(Ljava/lang/String;)V
>>from class com.oreilly.servlet.multipart.ParamPart
>>"
>>Class 'Part' IS public, so why this error on TC5 ? And no error on TC
4
>?
>>
>>Any suggestions ?
>>
>>greets
>>
>>grisi
>
>
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