JDBC connection error to ORACLE in JSP

Question

To connect to the Oracle database (using java server pages), we have installed the oracle client on web server box during the installation, it has installed jdbc classes also. We have put this classes in the Environment variable - path and class path. We have also put the same in class path of JVM (virtual server -> java tab -> configure jvm attributes) also. Still the connectivity with database is not getting established!!
The Error is mentioned below : (from error log file)
     "[08/Oct/2002:17:19:51] info ( 309): Internal Info: loading servlet /test/doctor8.jsp          
                                             // doctor8.jsp is the page, where we try to connect to the database. (the same page used to be working fine with our previous web server.)
[08/Oct/2002:17:20:04] info ( 309): JSP: JSP1x compiler threw exception
org.apache.jasper.JasperException: Unable to compile class for JSPNote: sun.tools.javac.Main has been deprecated.
C:\iPlanet\Servers\https-web_test.wellcarehmo.com\config\..\ClassCache\_jsps\_test\_doctor8_jsp.java:31: Ambiguous class: java.beans.Statement and java.sql.Statement
     Statement st=null;
     ^
C:\iPlanet\Servers\https-web_test.wellcarehmo.com\config\..\ClassCache\_jsps\_test\_doctor8_jsp.java:123: Class <<ambiguous>>Statement not found in =.
                    st=con.createStatement();
                    ^
C:\iPlanet\Servers\https-web_test.wellcarehmo.com\config\..\ClassCache\_jsps\_test\_doctor8_jsp.java:123: Incompatible type for =. Can't convert java.sql.Statement to <<ambiguous>>Statement.
                    st=con.createStatement();
                    ^
C:\iPlanet\Servers\https-web_test.wellcarehmo.com\config\..\ClassCache\_jsps\_test\_doctor8_jsp.java:125: Class <<ambiguous>>Statement not found in void _jspService(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse).
                    rs=st.executeQuery(strSql);
                    ^
4 errors, 1 warning
     at org.apache.jasper.compiler.Compiler.compile(Compiler.java:284)
     at com.iplanet.server.http.servlet.NSServletEntity.load(NSServletEntity.java:252)
     at com.iplanet.server.http.servlet.NSServletEntity.update(NSServletEntity.java:173)
     at com.iplanet.server.http.servlet.NSServletRunner.Service(NSServletRunner.java:416)
[08/Oct/2002:17:20:04] warning ( 309): Internal error: Failed to get GenericServlet. (uri=/test/doctor8.jsp,SCRIPT_NAME=/test/doctor8.jsp)

Answer 1

org.apache.jasper.JasperException: Unable to compile class for JSPNote: sun.tools.javac.Main has been deprecated.
C:\iPlanet\Servers\https-web_test.wellcarehmo.com\config\..\ClassCache\_jsps\_test\_doctor8_jsp.java:31: Ambiguous class: java.beans.Statement and java.sql.Statement
Statement st=null;
You are declaring a variable st of type Statement and the compiler can't figure out whether you mean a java.beans.Statement or java.sql.Statement. Change your declaration to fully qualify the one you want:
java.sql.Statement st = null ; // for example