Netbeans + Apache tomcat and Java

[Floris246]

Hi there,

I was trying to download lib files for the Tom cat node in my netbeans program. Unfortunately I got a build error:

Building the tomcat project step two @ http://wiki.netbeans.org/NetbeansedTomcat#section-NetbeansedTomcat-SoftwareNeeded

[Melongo Annabel]

Can you please let's know the libraries you try to copy to NB, why to try to do so and how you try to do so? it seems you try to extend from some extract classes and the compiler wouldn't let you do so....


From: Floris246 <address-removed>
To: address-removed
Sent: Monday, May 11, 2009 9:24:25 AM
Subject: [nbj2ee] Netbeans + Apache tomcat and Java

Hi there,



I was trying to download lib files for the Tom cat node in my netbeans program. Unfortunately I got a build error:



Building the tomcat project step two @ http://wiki.netbeans.org/NetbeansedTomcat#section-NetbeansedTomcat-SoftwareNeeded




Code:
C:\Program Files\xampp\apache-tomcat-6.0.18-src\jars\tomcat6-deps\dbcp\src\java\org\apache\tomcat\dbcp\dbcp\BasicDataSource.java:44: org.apache.tomcat.dbcp.dbcp.BasicDataSource is not abstract and does not override abstract method isWrapperFor(java.lang.Class<?>) in java.sql.Wrapper

public class BasicDataSource implements DataSource {

C:\Program Files\xampp\apache-tomcat-6.0.18-src\jars\tomcat6-deps\dbcp\src\java\org\apache\tomcat\dbcp\dbcp\DelegatingStatement.java:46: org.apache.tomcat.dbcp.dbcp.DelegatingStatement is not abstract and does not override abstract method isPoolable() in java.sql.Statement

public class DelegatingStatement extends AbandonedTrace implements Statement {

C:\Program Files\xampp\apache-tomcat-6.0.18-src\jars\tomcat6-deps\dbcp\src\java\org\apache\tomcat\dbcp\dbcp\DelegatingStatement.java:131: isClosed() in org.apache.tomcat.dbcp.dbcp.DelegatingStatement cannot implement isClosed() in java.sql.Statement; attempting to assign weaker access privileges; was public

protected boolean isClosed() {

C:\Program Files\xampp\apache-tomcat-6.0.18-src\jars\tomcat6-deps\dbcp\src\java\org\apache\tomcat\dbcp\dbcp\DelegatingPreparedStatement.java:50: org.apache.tomcat.dbcp.dbcp.DelegatingPreparedStatement is not abstract and does not override abstract method setNClob(int,java.io.Reader) in java.sql.PreparedStatement

public class DelegatingPreparedStatement extends DelegatingStatement

C:\Program Files\xampp\apache-tomcat-6.0.18-src\jars\tomcat6-deps\dbcp\src\java\org\apache\tomcat\dbcp\dbcp\DelegatingCallableStatement.java:53: org.apache.tomcat.dbcp.dbcp.DelegatingCallableStatement is not abstract and does not override abstract method setNClob(java.lang.String,java.io.Reader) in java.sql.CallableStatement

public class DelegatingCallableStatement extends DelegatingPreparedStatement

C:\Program Files\xampp\apache-tomcat-6.0.18-src\jars\tomcat6-deps\dbcp\src\java\org\apache\tomcat\dbcp\dbcp\DelegatingConnection.java:51: org.apache.tomcat.dbcp.dbcp.DelegatingConnection is not abstract and does not override abstract method createStruct(java.lang.String,java.lang.Object[]) in java.sql.Connection

public class DelegatingConnection extends AbandonedTrace

C:\Program Files\xampp\apache-tomcat-6.0.18-src\jars\tomcat6-deps\dbcp\src\java\org\apache\tomcat\dbcp\dbcp\DelegatingResultSet.java:55: org.apache.tomcat.dbcp.dbcp.DelegatingResultSet is not abstract and does not override abstract method updateNClob(java.lang.String,java.io.Reader) in java.sql.ResultSet

public class DelegatingResultSet extends AbandonedTrace implements ResultSet {

C:\Program Files\xampp\apache-tomcat-6.0.18-src\jars\tomcat6-deps\dbcp\src\java\org\apache\tomcat\dbcp\dbcp\PoolablePreparedStatement.java:41: org.apache.tomcat.dbcp.dbcp.PoolablePreparedStatement is not abstract and does not override abstract method setNClob(int,java.io.Reader) in java.sql.PreparedStatement

public class PoolablePreparedStatement extends DelegatingPreparedStatement implements PreparedStatement {

C:\Program Files\xampp\apache-tomcat-6.0.18-src\jars\tomcat6-deps\dbcp\src\java\org\apache\tomcat\dbcp\dbcp\PoolingConnection.java:42: org.apache.tomcat.dbcp.dbcp.PoolingConnection is not abstract and does not override abstract method createStruct(java.lang.String,java.lang.Object[]) in java.sql.Connection

public class PoolingConnection extends DelegatingConnection implements Connection, KeyedPoolableObjectFactory {

C:\Program Files\xampp\apache-tomcat-6.0.18-src\jars\tomcat6-deps\dbcp\src\java\org\apache\tomcat\dbcp\dbcp\PoolingDataSource.java:45: org.apache.tomcat.dbcp.dbcp.PoolingDataSource is not abstract and does not override abstract method isWrapperFor(java.lang.Class<?>) in java.sql.Wrapper

public class PoolingDataSource implements DataSource {

C:\Program Files\xampp\apache-tomcat-6.0.18-src\jars\tomcat6-deps\dbcp\src\java\org\apache\tomcat\dbcp\dbcp\cpdsadapter\ConnectionImpl.java:41: org.apache.tomcat.dbcp.dbcp.cpdsadapter.ConnectionImpl is not abstract and does not override abstract method createStruct(java.lang.String,java.lang.Object[]) in java.sql.Connection

class ConnectionImpl implements Connection {

C:\Program Files\xampp\apache-tomcat-6.0.18-src\jars\tomcat6-deps\dbcp\src\java\org\apache\tomcat\dbcp\dbcp\cpdsadapter\PooledConnectionImpl.java:43: org.apache.tomcat.dbcp.dbcp.cpdsadapter.PooledConnectionImpl is not abstract and does not override abstract method removeStatementEventListener(javax.sql.StatementEventListener) in javax.sql.PooledConnection

class PooledConnectionImpl

C:\Program Files\xampp\apache-tomcat-6.0.18-src\jars\tomcat6-deps\dbcp\src\java\org\apache\tomcat\dbcp\dbcp\cpdsadapter\PoolablePreparedStatementStub.java:34: isClosed() in org.apache.tomcat.dbcp.dbcp.DelegatingStatement cannot implement isClosed() in java.sql.Statement; attempting to assign weaker access privileges; was public

class PoolablePreparedStatementStub extends PoolablePreparedStatement {

C:\Program Files\xampp\apache-tomcat-6.0.18-src\jars\tomcat6-deps\dbcp\src\java\org\apache\tomcat\dbcp\dbcp\datasources\PerUserPoolDataSource.java:52: org.apache.tomcat.dbcp.dbcp.datasources.PerUserPoolDataSource is not abstract and does not override abstract method isWrapperFor(java.lang.Class<?>) in java.sql.Wrapper

public class PerUserPoolDataSource

C:\Program Files\xampp\apache-tomcat-6.0.18-src\jars\tomcat6-deps\dbcp\src\java\org\apache\tomcat\dbcp\dbcp\datasources\SharedPoolDataSource.java:45: org.apache.tomcat.dbcp.dbcp.datasources.SharedPoolDataSource is not abstract and does not override abstract method isWrapperFor(java.lang.Class<?>) in java.sql.Wrapper

public class SharedPoolDataSource

Note: Some input files use or override a deprecated API.

Note: Recompile with -Xlint:deprecation for details.

Note: Some input files use unchecked or unsafe operations.

Note: Recompile with -Xlint:unchecked for details.

15 errors

C:\Program Files\xampp\apache-tomcat-6.0.18-src\build.xml:701: The following error occurred while executing this line:

C:\Program Files\xampp\apache-tomcat-6.0.18-src\build.xml:771: Compile failed; see the compiler error output for details.

BUILD FAILED (total time: 1 minute 17 seconds)





So... what's wrong? I find it hard to understand what Tom cat actually does. I hope you guys can help me out, thanks!

[Futaleufu_John]

Tomcat is an application server. It is a "container" for your web
applications. When you deploy your application to Tomcat, that application
is accessible from your browser.

For more information about Tomcat see the following link:
http://tomcat.apache.org/ http://tomcat.apache.org/

There's no need to download libraries or anything else into NetBeans in
order to use Tomcat. If you didn't install Tomcat when you installed
NetBeans you can download and install the Tomcat plugin.

If you have Tomcat installed as a standalone application (that is outside
the NetBeans environment), you can add that version of Tomcat to your
NetBeans environment.

I can walk you through the process when you decide which way you want to use
Tomcat - as part of the NetBeans environment or as a standalone application.
(I've used both methods.)


Floris246 wrote: