JasperReport problem

[andree surya]

Hi all. I have a problem in setting up jasperreport.

It is mentioned here that I have to put these files in my classpath.

dist/jasperreports-X.jar

lib/commons-*.jar (all the commons - except maybe for commons-logging)

lib/itext-X.jar

lib/jdt-compiler.jar

I've done that. However, instead of pointing my classpath to each of these files, I extracted them, put them into one folder, and have my classpath points to this folder.
It works, as I can compile my project successfully.

But I got the following errors when I try to run my program :

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/digester/Digester
        at SalesReport.<init>(SalesReport.java:33)
        at VMCore.<init>(VMCore.java:22)
        at VendingMachine.main(VendingMachine.java:14)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.digester.Digester
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at sun.misc.Launcher$ExtClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClassInternal(Unknown Source)
        ... 3 more

Class org/apache/commons/digester/Digester not found, which is funny because if I import org.apache.commons.digester.Digester in my code, the compiler gives me no error.

Any clues ? Any helps will be appreciated.

This is my code :

import java.sql.*;
import java.util.*;
import java.io.*;
import org.apache.commons.digester.Digester;
import net.sf.jasperreports.view.JasperViewer;
import net.sf.jasperreports.engine.xml.JRXmlLoader;
import net.sf.jasperreports.engine.*;
import net.sf.jasperreports.engine.design.JasperDesign;

/**
	This class generates a report based on the given vending machine database connection
	and path name to the JRXML template file.
*/
class SalesReport
{
	/**
		Construct a sales report generator.
		@param database The vending machine database connection
		@param templatePath Path name to the JRXML template file
		@throw Exception Template not found.
	*/
	public SalesReport(Connection database, String templatePath) throws Exception
	{
		this.database = database;
		
		File templateFile = new File(templatePath);
		if (! templateFile.exists())
			throw new Exception("Jasper report template not found.");
			
		try
		{
			// Compile the given template
			JasperDesign template = JRXmlLoader.load(templateFile);
			this.report = JasperCompileManager.compileReport(template);
		}
		catch (Exception e)
		{
			throw new Exception("Failed to read jasper report template file.");
		}
	}
	
	/**
		Display the report.
		@throw Exception Database connection failed; Print report failed
	*/
	public void display() throws Exception
	{
		try
		{
			// Parameter for the report, we don't use it right now
			Map<String, String> parameter = new HashMap<String, String>();
		
			JasperPrint page = JasperFillManager.fillReport(report, parameter, database);
			JasperViewer.viewReport(page);
		}
		catch (Exception e)
		{
			throw new Exception("Fail to print report.");
		}
	}
	
	private Connection database;
	private JasperReport report;
}

[andree surya]

Never mind. Mine works already .
Instead of compiling the JRXML on the fly like the code above, I use a pre-compiled jasper template instead.

[andree surya]

No it's not working. I run my program and now the error message :

Exception in thread "main" java.lang.NoClassDefFoundError: Lorg/apache/commons/logging/Log;
        at java.lang.Class.getDeclaredFields0(Native Method)
        at java.lang.Class.privateGetDeclaredFields(Unknown Source)
        at java.lang.Class.getDeclaredField(Unknown Source)
        at java.io.ObjectStreamClass.getDeclaredSUID(Unknown Source)
        at java.io.ObjectStreamClass.access$700(Unknown Source)
        at java.io.ObjectStreamClass$2.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.io.ObjectStreamClass.<init>(Unknown Source)
        at java.io.ObjectStreamClass.lookup(Unknown Source)
        at java.io.ObjectStreamClass.initNonProxy(Unknown Source)
        at java.io.ObjectInputStream.readNonProxyDesc(Unknown Source)
        at java.io.ObjectInputStream.readClassDesc(Unknown Source)
        at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
        at java.io.ObjectInputStream.readObject0(Unknown Source)
        at java.io.ObjectInputStream.defaultReadFields(Unknown Source)
        at java.io.ObjectInputStream.readSerialData(Unknown Source)
        at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
        at java.io.ObjectInputStream.readObject0(Unknown Source)
        at java.io.ObjectInputStream.readArray(Unknown Source)
        at java.io.ObjectInputStream.readObject0(Unknown Source)
        at java.io.ObjectInputStream.defaultReadFields(Unknown Source)
        at java.io.ObjectInputStream.readSerialData(Unknown Source)
        at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
        at java.io.ObjectInputStream.readObject0(Unknown Source)
        at java.io.ObjectInputStream.defaultReadFields(Unknown Source)
        at java.io.ObjectInputStream.defaultReadObject(Unknown Source)
        at net.sf.jasperreports.engine.base.JRBaseReport.readObject(JRBaseReport.java:736)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at java.io.ObjectStreamClass.invokeReadObject(Unknown Source)
        at java.io.ObjectInputStream.readSerialData(Unknown Source)
        at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
        at java.io.ObjectInputStream.readObject0(Unknown Source)
        at java.io.ObjectInputStream.readObject(Unknown Source)
        at net.sf.jasperreports.engine.util.JRLoader.loadObject(JRLoader.java:198)
        at SalesReport.<init>(SalesReport.java:34)
        at VMCore.<init>(VMCore.java:24)
        at VendingMachine.main(VendingMachine.java:14)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.logging.Log
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at sun.misc.Launcher$ExtClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClassInternal(Unknown Source)
        ... 40 more

Class not found. The same problem like the one I mentioned in the first post.

[andree surya]

Now i set my classpath to point to each of the JAR files under jasperreport-xxx/lib (using batch script off course).
No luck. Still the same error.

Anyone please?
Desperately need help.

[Martijn Verburg]

You need the log4j.jar in your classpath (log4j-1.2.15.jar probably)

[andree surya]

Martijn Verburg wrote:You need the log4j.jar in your classpath (log4j-1.2.15.jar probably)

Hi Martijn, thanks for the reply. I include log4j-1.2.9.jar to the classpath, but it's not working either.
The packages contained inside log4j.jar is com.apache.log4j, anyway.
The one that is missing is com.apache.commons.logging.Log. It is contained within commons-logging, but it's also already in the classpath.

Hm . . . . Any ideas?

[Martijn Verburg]

The only thing that I can think of is that it's not picking up the commons logging in your CLASSPATH for some reason or you have multiple copies of commons-logging in the CLASSPATH

[andree surya]

Martijn Verburg wrote:The only thing that I can think of is that it's not picking up the commons logging in your CLASSPATH for some reason or you have multiple copies of commons-logging in the CLASSPATH

Hey you're right ! I have another jasperreports-xxx.jar in my JRE\ext\lib. I delete it, and now it works !
Million Thanks, Martijn

[Martijn Verburg]

You're welcome