From: | John Hicks <javajohn(at)gulfbridge(dot)net> |
---|---|
To: | pgsql-jdbc(at)postgresql(dot)org |
Subject: | Netscape 4.7 browser requests cause different behavior from JSTL/Postgres web app |
Date: | 2002-07-15 15:57:32 |
Message-ID: | 200207151557.g6FFvWv14213@localhost.localdomain |
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Thread: | |
Lists: | pgsql-jdbc |
Greetings All--
I'm working on a fairly simple web application: posting a
web form to a record in a single postgres table using JSTL,
JDBC, and Postgres.
with the help of the JSTL mailing list, I have it working
successfully . . . most of the time (with a prepared
statement and <param> tags plus a few <out> tags nested
inside <param> tags).
Everything works successfully *unless* the form is posted
from the Netscape 4.73 browser!!
(It works fine coming from Konqueror and Opera 6.0 and
Netscape 7 (all running under Linux) and from IE6.0 and
Opera 6.01 running in Windows.
But when the request comes from Netscape 4.73, I get a
stack trace (which I'll post at the bottom of this message).
Does anyone know of some basic difference in the way that
Netscape 4.x formats its request?
My configuration:
RedHat 7.2
J2SDK1.4.0
Jakarta-Tomcat-4.0.3
JSTL 1.0 Release Candiate 1
PostgreSQL JDBC driver: jdbc7.1-1.2.jar
PostgreSQL-7.1.3
256 MB RAM
Excerpts from stack trace:
javax.servlet.ServletException:
UPDATE programs
SET org = ?,
name = ?,
resp = ?,
respPhone = ?,
respFax = ?,
. . .
overview = ?
WHERE progKey = ?
. . .
: Failed to store object - Exception:
java.lang.NullPointerException
Stack Trace:
java.lang.NullPointerException
at org.postgresql.Connection.putObject(Connection.java:790)
at
org.postgresql.jdbc2.PreparedStatement.setObject(PreparedStatement.java:596)
at
org.apache.taglibs.standard.tag.common.sql.UpdateTagSupport.setParameters(UpdateTagSupport.java:285)
at
org.apache.taglibs.standard.tag.common.sql.UpdateTagSupport.doEndTag(UpdateTagSupport.java:192)
at
org.apache.jsp.surveysave$jsp._jspService(surveysave$jsp.java:1393)
at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
at
javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:202)
. . .
at
org.apache.catalina.connector.warp.WarpConnection.run(WarpConnection.java:194)
at java.lang.Thread.run(Thread.java:536)
End of Stack Trace
at
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:463)
at
org.apache.jsp.surveysave$jsp._jspService(surveysave$jsp.java:5584)
at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
at
javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:202)
. . .
(End of stack trace excerpt)
Thanks in advance,
--John Hicks
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