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How to change the target server after creating a Dynamic Web Project? [message #207653]

Tue, 29 January 2008 15:57

Michael Moser

Messages: 914
Registered: July 2009

Senior Member

I created a "Dynamic Web Project" using Apache Tomcat 6.0. Now I need to
change this project to run on Tomcat 5.5. How do I do that?

When I want to change Window => Pref's => Targeted Runtimes then only
Tomcat 6.0 is listed. If I check "Show all runtimes" I see Tomcat 5.5
but it is grayed/deactivated, i.e. I can not select it. The

When I right-click the project and select Run... => Run On Server... I
get a list containing both servers, but if I select Tomcat 5.5 here then
I get an error "The server does not support version 2.5 of the J2EE Web
module specification".

When I right-click the project and select Properties => Project Facets
I see "Dynamic Web Module version: 2.5". If I click the Modify
Project... button I get a dialog "Modify Project Facets". If I select
Dynamic Web Module => Version 2.4 here I get an error telling me "Cannot
change version of project facet Dynamic Web Module to 2.4".

So, how the heck do I change the target platform for this project such
that I can run it on Tomcat 5.5???

Michael

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Re: How to change the target server after creating a Dynamic Web Project? [message #207694 is a reply to message #207653]

Tue, 29 January 2008 17:36

Larry Isaacs

Messages: 1354
Registered: July 2009

Senior Member

Michael Moser wrote:
> I created a "Dynamic Web Project" using Apache Tomcat 6.0. Now I need to
> change this project to run on Tomcat 5.5. How do I do that?
>
> When I want to change Window => Pref's => Targeted Runtimes then only
> Tomcat 6.0 is listed. If I check "Show all runtimes" I see Tomcat 5.5
> but it is grayed/deactivated, i.e. I can not select it. The
>
> When I right-click the project and select Run... => Run On Server... I
> get a list containing both servers, but if I select Tomcat 5.5 here then
> I get an error "The server does not support version 2.5 of the J2EE Web
> module specification".
>
> When I right-click the project and select Properties => Project Facets
> I see "Dynamic Web Module version: 2.5". If I click the Modify
> Project... button I get a dialog "Modify Project Facets". If I select
> Dynamic Web Module => Version 2.4 here I get an error telling me "Cannot
> change version of project facet Dynamic Web Module to 2.4".
>
> So, how the heck do I change the target platform for this project such
> that I can run it on Tomcat 5.5???
>
> Michael
>

I don't believe the "Dynamic Web Module" facet supports modification.
Since your current project specifies "2.5", you won't be able to set the
target runtime or deploy to Tomcat 5.5 since it only supports up through
version "2.4". I would recommend creating a new project with "2.4" as
the "Dynamic Web Module" facet, which choosing the Tomcat 5.5 runtime
would accomplish. If you plan to deploy on either, make sure the Java
facet is set for the lower of the versions your Tomcat 5.5 and Tomcat
6.0 are running with, if there happens to be a difference. Then copy
the content from the old project to the new one and port any web.xml
changes necessary.

Cheers,
Larry

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Re: How to change the target server after creating a Dynamic Web Project? [message #207759 is a reply to message #207694]

Wed, 30 January 2008 10:58

Michael Moser

Messages: 914
Registered: July 2009

Senior Member

This is a multi-part message in MIME format.

------=_NextPart_000_0019_01C86337.758216B0
Content-Type: text/plain;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

Hi Larry,
I considered your procedure a bit tedious and so I decided to set things =
straight "manually". Just in case anybody has to do the same ever - here =
is what I had to do:

In .classpath I changed:
<classpathentry exported=3D"true" kind=3D"con" =
path=3D" org.eclipse.jst.server.core.container/org.eclipse.jst.server .tomc=
at.runtimeTarget/Apache Tomcat v6.0"/>
to:
<classpathentry exported=3D"true" kind=3D"con" =
path=3D" org.eclipse.jst.server.core.container/org.eclipse.jst.server .tomc=
at.runtimeTarget/Apache Tomcat v5.5"/>
=20
In .settings/org.eclipse.jst.common.project.facet.core. I changed:
classpath.helper/org.eclipse.jst.server.core.container\:\:or g.eclipse.jst=
..server.tomcat.runtimeTarget\:\:Apache\ Tomcat\ =
v6.0/owners=3Djst.web\:2.5
to:
classpath.helper/org.eclipse.jst.server.core.container\:\:or g.eclipse.jst=
..server.tomcat.runtimeTarget\:\:Apache\ Tomcat\ =
v5.5/owners=3Djst.web\:2.4
And in .settings/org.eclipse.wst.common.project.facet.core.xml I =
changed:
<runtime name=3D"Apache Tomcat v6.0"/>
....
<installed facet=3D"jst.web" version=3D"2.5"/>
to:
<runtime name=3D"Apache Tomcat v5.5"/>
....
<installed facet=3D"jst.web" version=3D"2.4"/>

I am not sure whether ALL of these changes are really necessary, but I =
changed them all for consistency.

After that the project turned out to "Tomcat 5.5 compliant"!

Michael

Larry Isaacs wrote:
> I don't believe the "Dynamic Web Module" facet supports modification.
> Since your current project specifies "2.5", you won't be able to set
> the target runtime or deploy to Tomcat 5.5 since it only supports up
> through version "2.4". I would recommend creating a new project with
> "2.4" as the "Dynamic Web Module" facet, which choosing the Tomcat
> 5.5 runtime would accomplish. If you plan to deploy on either, make
> sure the Java facet is set for the lower of the versions your Tomcat
> 5.5 and Tomcat=20
> 6.0 are running with, if there happens to be a difference. Then copy
> the content from the old project to the new one and port any web.xml
> changes necessary.
>=20
> Cheers,
> Larry
------=_NextPart_000_0019_01C86337.758216B0
Content-Type: text/html;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD><LINK href=3D"C:\Program Files\OE-QuoteFix\styles.css" =
rel=3Dstylesheet>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.6000.16595" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY>
<DIV>Hi Larry,</DIV>
<DIV>I considered your procedure a bit tedious and so I =
decided=20
to set things straight "manually". Just in case =
anybody=20
has to do the same ever - here is what I had to=20
do:</DIV>
<DIV> </DIV>
<DIV>In .classpath I changed:</DIV>
<DIV>
<DIV><classpathentry exported<FONT=20
size=3D2>=3D"true" kind=3D"con"=20
path=3D<FONT=20
color=3D#2a00ff=20
size=3D2>" org.eclipse.jst.server.core.container/org.eclipse.jst.server .to=
mcat.runtimeTarget/Apache=20
Tomcat v6.0"/></DIV>
<DIV>
<DIV>to:</DIV></DIV></DIV>
<DIV><classpathentry exported<FONT=20
size=3D2>=3D"true" kind=3D"con"=20
path=3D<FONT=20
color=3D#2a00ff=20
size=3D2>" org.eclipse.jst.server.core.container/org.eclipse.jst.server .to=
mcat.runtimeTarget/Apache=20
Tomcat v5.5"/></DIV>
<DIV> </DIV>
<DIV>
<DIV><SPAN=20
class=3Dq0>In .settings/org.eclipse.jst.common.project.facet.=
core. I=20
changed: <FONT=20
size=3D2>classpath.helper/org.eclipse.jst.server.core.container\: <=
FONT=20
color=3D#2a00ff=20
size=3D2>\:org.eclipse.jst.server.tomcat.runtimeTarget\:\:Apache\ <=
FONT=20
size=3D2> Tomcat\=20
v6.0/owners=3D<FONT=20
color=3D#2a00ff size=3D2>jst.web\:2.5 <SPAN=20
class=3Dq0>to: <FONT=20
size=3D2>classpath.helper/org.eclipse.jst.server.core.container\: <FONT=20
color=3D#2a00ff>\:org.eclipse.jst.server.tomcat.runtimeTarget\:\:Apache\ <=
/FONT>=20
Tomcat\ <FONT=20
color=3D#2a00ff>v5.5/owners=3Djst.web\:2.4</DIV>
And=20
in .settings/org.eclipse.wst.common.project.facet.core.xml I =

changed: <runtime name=3D"Apache Tomcat=20
v6.0"/> ... <installed facet<FONT=20
size=3D2>=3D"jst.web" version=3D"2.5"/> <FONT=20
color=3D#008080 size=3D2>to: <runtime name<FONT=20
size=3D2>=3D"Apache Tomcat =
v5.5"<FONT=20
color=3D#008080 size=3D2>/> ... <installed facet<FONT=20
size=3D2>=3D"jst.web" version=3D"2.4"/></DIV>
<DIV>I am not sure whether ALL of these changes are =
really=20
necessary, but I changed them all for consistency.</DIV>
<DIV> </DIV>
<DIV>After that the project turned out to "Tomcat =
5.5=20
compliant"!</DIV>
<DIV> </DIV>
<DIV>Michael</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>Larry Isaacs wrote: > I don't=20
believe the "Dynamic Web Module" facet supports modification. > =
Since your=20
current project specifies "2.5", you won't be able to set > the =
target=20
runtime or deploy to Tomcat 5.5 since it only supports up > =
through=20
version "2.4".  I would recommend creating a new project =
with > "2.4"=20
as the "Dynamic Web Module" facet, which choosing the Tomcat > 5.5 =
runtime=20
would accomplish.  If you plan to deploy on either, make > =
sure the=20
Java facet is set for the lower of the versions your Tomcat > 5.5 =
and=20
Tomcat > 6.0 are running with, if there happens to be a =
difference. =20
Then copy > the content from the old project to the new one and =
port any=20
web.xml > changes necessary. > > Cheers, >=20
Larry</DIV></BODY></HTML>

------=_NextPart_000_0019_01C86337.758216B0--

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Re: How to change the target server after creating a Dynamic Web Project? [message #207778 is a reply to message #207759]

Wed, 30 January 2008 13:31

Larry Isaacs

Messages: 1354
Registered: July 2009

Senior Member

This will fix the facet and target runtime of the project, but not its
content or related metadata. If you know the content didn't contain any
use of "2.5" features, then you are probably okay. I'm not aware of any
cached info under the ".metadata" folder of your workspace, but it's not
my area of expertise. At least make sure the content of your web.xml is
to "2.4" spec and not "2.5".

Cheers,
Larry

Michael Moser wrote:
> Hi Larry,
> I considered your procedure a bit tedious and so I decided to set things
> straight "manually". Just in case anybody has to do the same ever - here
> is what I had to do:
>
> In .classpath I changed:
> <classpathentry exported="true" kind="con"
> path=" org.eclipse.jst.server.core.container/org.eclipse.jst.server .tomcat.runtimeTarget/Apache
> Tomcat v6.0"/>
> to:
> <classpathentry exported="true" kind="con"
> path=" org.eclipse.jst.server.core.container/org.eclipse.jst.server .tomcat.runtimeTarget/Apache
> Tomcat v5.5"/>
>
> In .settings/org.eclipse.jst.common.project.facet.core. I changed:
> classpath.helper/org.eclipse.jst.server.core.container\:\:or g.eclipse.jst.server.tomcat.runtimeTarget\:\:Apache\
> Tomcat\ v6.0/owners=jst.web\:2.5
> to:
> classpath.helper/org.eclipse.jst.server.core.container\:\:or g.eclipse.jst.server.tomcat.runtimeTarget\:\:Apache\
> Tomcat\ v5.5/owners=jst.web\:2.4
>
> And in .settings/org.eclipse.wst.common.project.facet.core.xml I changed:
> <runtime name="Apache Tomcat v6.0"/>
> ...
> <installed facet="jst.web" version="2.5"/>
> to:
> <runtime name="Apache Tomcat v5.5"/>
> ...
> <installed facet="jst.web" version="2.4"/>
>
> I am not sure whether ALL of these changes are really necessary, but I
> changed them all for consistency.
>
> After that the project turned out to "Tomcat 5.5 compliant"!
>
> Michael
>
>
> Larry Isaacs wrote:
>> I don't believe the "Dynamic Web Module" facet supports modification.
>> Since your current project specifies "2.5", you won't be able to set
>> the target runtime or deploy to Tomcat 5.5 since it only supports up
>> through version "2.4". I would recommend creating a new project with
>> "2.4" as the "Dynamic Web Module" facet, which choosing the Tomcat
>> 5.5 runtime would accomplish. If you plan to deploy on either, make
>> sure the Java facet is set for the lower of the versions your Tomcat
>> 5.5 and Tomcat
>> 6.0 are running with, if there happens to be a difference. Then copy
>> the content from the old project to the new one and port any web.xml
>> changes necessary.
>>
>> Cheers,
>> Larry

Report message to a moderator

Re: How to change the target server after creating a Dynamic Web Project? [message #207792 is a reply to message #207759]

Wed, 30 January 2008 15:17

Angel Vera

Messages: 63
Registered: July 2009

Member

Don't forget to change the deployment descriptor(web.xml) header. There
is several places where the 2.5 is referecing to jee, but in the 2.4
cases it used to be j2ee. In addition the version number is also
referenced in the DD.

I second the comment from Larry. If you know the project doesn't use any
2.5 functionality you are probably okay with these changes.

"Michael Moser" <mmo@zurich.ibm.com> wrote in
news:fnpl93$5u2$1@build.eclipse.org:

> Hi Larry,
> I considered your procedure a bit tedious and so I decided to set
> things straight "manually". Just in case anybody has to do the same
> ever - here is what I had to do:
>
> In .classpath I changed:
> <classpathentry exported="true" kind="con"
> path=" org.eclipse.jst.server.core.container/org.eclipse.jst.server .tom
c
> at.runtimeTarget/Apache Tomcat v6.0"/> to:
> <classpathentry exported="true" kind="con"
> path=" org.eclipse.jst.server.core.container/org.eclipse.jst.server .tom
c
> at.runtimeTarget/Apache Tomcat v5.5"/>
>
> In .settings/org.eclipse.jst.common.project.facet.core. I changed:
> classpath.helper/org.eclipse.jst.server.core.container\:
\:org.eclipse.j
> st.server.tomcat.runtimeTarget\:\:Apache\ Tomcat\
> v6.0/owners=jst.web\:2.5 to:
> classpath.helper/org.eclipse.jst.server.core.container\:
\:org.eclipse.j
> st.server.tomcat.runtimeTarget\:\:Apache\ Tomcat\
> v5.5/owners=jst.web\:2.4 And in
> .settings/org.eclipse.wst.common.project.facet.core.xml I changed:
> <runtime name="Apache Tomcat v6.0"/> ...
> <installed facet="jst.web" version="2.5"/>
> to:
> <runtime name="Apache Tomcat v5.5"/>
> ...
> <installed facet="jst.web" version="2.4"/>
>
> I am not sure whether ALL of these changes are really necessary, but I
> changed them all for consistency.
>
> After that the project turned out to "Tomcat 5.5 compliant"!
>
> Michael
>
>
> Larry Isaacs wrote:
>> I don't believe the "Dynamic Web Module" facet supports modification.
>> Since your current project specifies "2.5", you won't be able to set
>> the target runtime or deploy to Tomcat 5.5 since it only supports up
>> through version "2.4". I would recommend creating a new project with
>> "2.4" as the "Dynamic Web Module" facet, which choosing the Tomcat
>> 5.5 runtime would accomplish. If you plan to deploy on either, make
>> sure the Java facet is set for the lower of the versions your Tomcat
>> 5.5 and Tomcat
>> 6.0 are running with, if there happens to be a difference. Then copy
>> the content from the old project to the new one and port any web.xml
>> changes necessary.
>>
>> Cheers,
>> Larry
> ------=_NextPart_000_0019_01C86337.758216B0
> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
> <HTML><HEAD><LINK href="C:\Program Files\OE-QuoteFix\styles.css"
> rel=stylesheet> <META http-equiv=Content-Type content="text/html;
> charset=iso-8859-1"> <META content="MSHTML 6.00.6000.16595"
> name=GENERATOR> <STYLE></STYLE>
> </HEAD>
> <BODY>
> <DIV>Hi Larry,</DIV>
> <DIV>I considered your procedure a bit tedious and so I
> decided to set things straight "manually". Just
> in case anybody has to do the same ever - here
> is what I had to do:</DIV>
> <DIV> </DIV>
> <DIV>In .classpath I changed:</DIV>
> <DIV>
> <DIV>< size=2>classpathentry size=2>exported= size=2>"true" kind size=2>="con" color=#7f007f size=2>path= color=#2a00ff
> size=
2>" org.eclipse.jst.server.core.container/org.eclipse.jst.server .to
> mcat.runtimeTarget/Apache Tomcat v6.0" size=2>/></DIV> <DIV>
> <DIV>to:</DIV></DIV></DIV>
> <DIV>< size=2>classpathentry size=2>exported= size=2>"true" kind size=2>="con" color=#7f007f size=2>path= color=#2a00ff
> size=
2>" org.eclipse.jst.server.core.container/org.eclipse.jst.server .to
> mcat.runtimeTarget/Apache Tomcat v5.5" size=2>/></DIV> <DIV> class=q0> </DIV> <DIV>
> <DIV> class=q0>In 
.settings/org.eclipse.jst.common.project.facet.
> core. I changed: size=2>classpath.helper/org.eclipse.jst.server.core.container\: 
<
> FONT color=#2a00ff
> size=2>\:org.eclipse.jst.server.tomcat.runtimeTarget\:\:Apache\ 
<
> FONT size=2> Tomcat\ size=2> v6.0/owners size=2>= size=2>jst.web\:2.5 class=q0>to: size=2>classpath.helper/org.eclipse.jst.server.core.container\: color=#2a00ff>\:org.eclipse.jst.server.tomcat.runtimeTarget\:\:Apache
\<
> /FONT> Tomcat\ color=#2a00ff>v5.5/owners= size=2>jst.web\:2.4</DIV>
> And
> in .settings/org.eclipse.wst.common.project.facet.core.xml
> I changed: color=#008080 size=2><runtime
> name size=2>="Apache Tomcat
> v6.0"/> color=#008080 size=2>... size=2><installed color=#7f007f size=2>facet= color=#2a00ff size=2>"jst.web" size=2>version= size=2>"2.5" size=2>/> class=q0>to: <runtime
> name size=2>="Apache Tomcat
> v5.5"/> color=#008080 size=2>... size=2><installed color=#7f007f size=2>facet= color=#2a00ff size=2>"jst.web" size=2>version= size=2>"2.4" size=2>/></DIV> <DIV>I am not sure
> whether ALL of these changes are really necessary, but I changed them
> all for consistency.</DIV> <DIV> class=q0> </DIV> <DIV>After that the
> project turned out to "Tomcat 5.5 compliant"!</DIV>
> <DIV> </DIV>
> <DIV>Michael</DIV>
> <DIV> </DIV>
> <DIV> </DIV>
> <DIV>Larry Isaacs wrote: >
> I don't believe the "Dynamic Web Module" facet supports
> modification. > Since your current project specifies "2.5", you
> won't be able to set > the target runtime or deploy to Tomcat
> 5.5 since it only supports up > through version "2.4".  I
> would recommend creating a new project with > "2.4" as the
> "Dynamic Web Module" facet, which choosing the Tomcat > 5.5
> runtime would accomplish.  If you plan to deploy on either,
> make > sure the Java facet is set for the lower of the versions
> your Tomcat > 5.5 and Tomcat > 6.0 are running with, if
> there happens to be a difference.  Then copy > the content
> from the old project to the new one and port any web.xml >
> changes necessary. > > Cheers, >
> Larry</DIV></BODY></HTML>
>
> ------=_NextPart_000_0019_01C86337.758216B0--

Regards,
--
Angel Vera
WTP Server Tools Developer

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Re: How to change the target server after creating a Dynamic Web Project? [message #208073 is a reply to message #207792]

Mon, 04 February 2008 13:37

Michael Moser

Messages: 914
Registered: July 2009

Senior Member

Angel Vera wrote:
> Don't forget to change the deployment descriptor(web.xml) header.
> There is several places where the 2.5 is referecing to jee, but in
> the 2.4 cases it used to be j2ee. In addition the version number is
> also referenced in the DD.
>
> I second the comment from Larry. If you know the project doesn't use
> any
> 2.5 functionality you are probably okay with these changes.

ooops - indeed!
My web.xml's header still referenced misc. 2.5 and j2ee stuff. Strange
enough that didn't seem to cause any problem when automatically
deploying this project to the server, but I'm glad you made me aware!

Pardon my ignorance: what do you mean by "in the DD"?

Michael

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