Rendering A JPEG image with a custom tag

Hi All,
I have dilema. I'm trying to rendering a jpeg in IE/FireFox with a custom tag that I developed. I'm able to access the bean and invoke the getter method to return the InputStream property. But what gets rendered is the byte code not the image. I've tried just about anything I could think off. If any body has an answer I would difinitely appreciate it.
Thanks,
Tony
Below is the jsp, tld, bean and tag.
********************************* image.jsp ****************************************
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<%@ taglib uri="/WEB-INF/custom-chtml.tld" prefix="chtml" %>
<html>
<head>
<title>HTML Page</title>
</head>
<body bgcolor="#FFFFFF">
<chtml:img name="photo" property="file"/>
</body>
</html>
********************************* custom-chtml.tld **********************************
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE taglib PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.1//EN" "http://java.sun.com/j2ee/dtds/web-jsptaglibrary_1_1.dtd">
<taglib>
<tlibversion>1.0</tlibversion>
<jspversion>1.1</jspversion>
<shortname>chtml</shortname>
<tag>
<name>img</name>
<tagclass>com.struts.taglib.CustomImgTag</tagclass>
<bodycontent>empty</bodycontent>
<attribute>
<name>name</name>
<required>false</required>
<rtexprvalue>true</rtexprvalue>
</attribute>
<attribute>
<name>property</name>
<required>true</required>
<rtexprvalue>true</rtexprvalue>
</attribute>
</tag>
</taglib>
**************************** MemberPhotoBean.java ******************************
import java.io.InputStream;
* @author tony
* TODO To change the template for this generated type comment go to
* Window - Preferences - Java - Code Style - Code Templates
public class MemberPhotoValue {
 private String memberId;
 private int fileSize;
 private InputStream file;
 public MemberPhotoValue() {
 public MemberPhotoValue(String memberId, InputStream file) {
 this.memberId = memberId;
 this.file = file;
 public MemberPhotoValue(String memberId,int fileSize,InputStream file) {
 this.memberId = memberId;
 this.fileSize = fileSize;
 this.file = file;
 public String getMemberId(){
 return memberId;
 public void setMemberId(String memberId) {
 this.memberId = memberId;
 public int getFileSize() {
 return fileSize;
 public void setFileSize(int fileSize) {
 this.fileSize = fileSize;
 public InputStream getFile(){
 return file;
 public void setFile(InputStream file) {
 this.file = file;
*************************** CustomTagHandler.java ********************************
import java.io.*;
import javax.imageio.ImageIO;
import javax.servlet.*;
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
import java.lang.reflect.Method;
import java.lang.reflect.InvocationTargetException;
import java.awt.image.*;
import java.awt.*;
import javax.swing.ImageIcon;
import com.sun.image.codec.jpeg.*;
* JSP Tag Handler class
* @jsp.tag name = "CustomImg"
* display-name = "Name for CustomImg"
* description = "Description for CustomImg"
* body-content = "empty"
public class CustomImgTag implements Tag {
 private PageContext pageContext;
 private Tag parent;
 private String property;
 private String name;
 private Class bean;
 public int doStartTag() throws JspException {
 return SKIP_BODY;
 public int doEndTag() throws JspException {
 try {
 ServletResponse response = pageContext.getResponse();
 // read in the image from the bean
 InputStream stream = (InputStream) invokeBeanMethod();
 BufferedImage image = ImageIO.read(stream); Image inImage = new ImageIcon(image).getImage();
 Graphics2D g = image.createGraphics();
 g.drawImage(inImage,null,null);
 OutputStream out = response.getOutputStream();
// JPEG-encode the image
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
encoder.encode(image);
 out.close();
} catch (IOException io) {
 throw new JspException(io.getMessage());
 return EVAL_PAGE;
 public void release(){}
private InputStream invokeBeanMethod() throws JspException {
 try {
 Object bean = null;
 if (null != pageContext.getAttribute(name)) {
 bean = (Object) pageContext.getAttributename);
 else if (null != pageContext.getSession().getAttribute(name)) {
 bean = (Object) pageContext.getSession().getAttribute(name);
 else if (null != pageContext.getRequest().getAttribute(name)) {
 bean = (Object) pageContext.getRequest().getAttribute(name);
 else {
 throw new JspException("Bean : "+name+" is not found in any pe.");
 Class[] parameters = null;
 Object[] obj = null;
 Method method = bean.getClass().getMethod("getFile",parameters);
 return (InputStream) method.invoke(bean,obj);
 } catch (NoSuchMethodException ne) {
 throw new JspException("No getter method "+property+" for bean : "+bean);
 } catch (IllegalAccessException ie) {
 throw new JspException(ie.getMessage());
 } catch (InvocationTargetException ie) {
 throw new JspException(ie.toString());
 public void setPageContext(PageContext pageContext) {
 this.pageContext = pageContext;
 public void setParent(Tag parent) {
 this.parent = parent;
 public Tag getParent() {
 return parent;
 public void setProperty(String property) {
 this.property = property;
 public void setName(String name) {
 this.name = name;
**************************************************************************************

If you have access to an image editing tool such as photoshop, I would advice you import the image into Phototshop and save it in a different format e.g, GIF format and re-import it into Final Cut Express HD. This could solve your rendering problem if all you need is to use a Still image.
Ayemenre

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and the tag handler class and TLD file and jsp file is below
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: javax.servlet.jsp.JspException: null
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl .java:841)
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org.apache.jasper.servlet.JspServlet.service(JspServlet.java:245)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
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java.lang.NullPointerException
Try.Connect.<init>(Connect.java:26)
sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
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sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
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org.apache.jsp.DbTry_jsp._jspService(org.apache.jsp.DbTry_jsp:62)
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package Try;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.PageContext;
import javax.servlet.jsp.tagext.TagSupport;
import java.sql.*;
public class Connect extends TagSupport {
private String driver = "com.mysql.jdbc.Driver";
private String dbtype = "mysql";
private String host = "localhost";
private String username = "root";
private String password = "203131";
private String database = "compose";
private String scope = "page";
private String id = "";
JspWriter out = pageContext.getOut();
public void setDriver(String str) {
driver = str;
public void setDbtype(String str) {
dbtype = str;
public void setHost(String str) {
host = str;
public void setUsername(String str) {
username = str;
public void setPassword(String str) {
password = str;
public void setDatabase(String str) {
database = str;
public void setScope(String str) {
scope = str;
public void setId(String str) {
id = str;
public int doStartTag() throws JspException {
try {
Class.forName("com.mysql.jdbc.Driver");
String url= "jdbc:" + dbtype + "://" + host + "/" + database;
Connection connection = DriverManager.getConnection(url,username,password);
out.println("right ;;one");
catch (SQLException e1) {
System.out.println("Error in HeadingTagv: " + e1);
catch (Exception e) {
System.out.println("Error in HeadingTag: " + e);
return SKIP_BODY;
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<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE taglib
PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN"
"http://java.sun.com/j2ee/dtds/web-jsptaglibrary_1_2.dtd">
<taglib>
<tlib-version>1.0</tlib-version>
<jsp-version>1.2</jsp-version>
<short-name>db</short-name>
<display-name>Database Tags</display-name>
<description>
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<tag>
<name>connect</name>
<tag-class>Try.Connect</tag-class>
<body-content>empty</body-content>
<description>
</description>
<attribute>
<name>driver</name>
<required>false</required>
<rtexprvalue>true</rtexprvalue>
<description>
</description>
</attribute>
<attribute>
<name>dbtype</name>
<required>false</required>
<rtexprvalue>true</rtexprvalue>
<description>
</description>
</attribute>
<attribute>
<name>host</name>
<required>false</required>
<rtexprvalue>true</rtexprvalue>
<description>
Can be given by a run-time expression.
Host name of the computer where database is located.
Default is "localhost".
</description>
</attribute>
<attribute>
<name>username</name>
<required>false</required>
<rtexprvalue>true</rtexprvalue>
<description>
Can be given by a run-time expression.
Username for logging onto the database.
Default is "root".
</description>
</attribute>
<attribute>
<name>password</name>
<required>false</required>
<rtexprvalue>true</rtexprvalue>
<description>
Can be given by a run-time expression.
Password for logging onto the database.
Default is the empty string.
</description>
</attribute>
<attribute>
<name>database</name>
<required>false</required>
<rtexprvalue>true</rtexprvalue>
<description>
Can be given by a run-time expression.
The name of the database that will be used for
the SQL commands. Default is no database specified.
</description>
</attribute>
<attribute>
<name>id</name>
<required>false</required>
<description>
</description>
</attribute>
<attribute>
<name>scope</name>
<required>false</required>
<description>
</description>
</attribute>
</tag>
</taglib>
JSP file is
<%@ taglib uri="/WEB-INF/lib.tld" prefix="db" %>
<html>
<body>
<db:connect username="root" password="203131" database="compose" />
</body>
</html>

Answered in your other post:
http://forum.java.sun.com/thread.jspa?threadID=608780&tstart=0

Initial problem with JSP Custom Tag devolopment

Hi ,
I have encountered a problem with my JSP application which utilizes a simple custom tag.
First I created followinng directories.
1. %TOMCAT_HOME%\webapps\testTags
2. %TOMCAT_HOME%\webapps\testTags\META-INF
3. %TOMCAT_HOME%\webapps\testTags\WEB-INF
4. %TOMCAT_HOME%\webapps\testTags\WEB-INF\tlds
5. %TOMCAT_HOME%\webapps\testTags\WEB-INF\classes
6. %TOMCAT_HOME%\webapps\testTags\WEB-INF\classes\com
7. %TOMCAT_HOME%\webapps\testTags\WEB-INF\classes\com\tek271
8. %TOMCAT_HOME%\webapps\testTags\WEB-INF\classes\com\tek271\testTags
I created the essential four files, that is named as follows.
1.TagError.java
2.web.xml
3.testTld.tld
4.testJsp.jsp
Then i put the files under these directories as given below
testJsp.jsp under %TOMCAT_HOME%\webapps\testTags.
web.xml under %TOMCAT_HOME%\webapps\testTags\WEB-INF
TagError.java under %TOMCAT_HOME%\webapps\testTags\WEB-INF\classes
TagError.class under %TOMCAT_HOME%\webapps\testTags\WEB-INF\classes\com\tek271\testTags
testTld.tld %TOMCAT_HOME%\webapps\testTags\WEB-INF\tlds
Here is the content inside the files.
1.TagError.java
package com.tek271.testTags;
import java.io.*;
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
public class TagError extends TagSupport {
private String mColor = "red";
public void setColor(String aColor) {
mColor = aColor;
} // setColor
public int doStartTag() throws JspException {
try {
JspWriter out = pageContext.getOut();
out.print("Error: ");
} catch (IOException ex) {
throw new JspTagException(ex.getMessage());
return EVAL_BODY_INCLUDE; // other return: SKIP_BODY
} // doStartTag()
public int doEndTag() throws JspException {
try {
JspWriter out = pageContext.getOut();
out.println(" ");
} catch (IOException ex) {
throw new JspTagException(ex.getMessage());
return EVAL_PAGE; // other return: SKIP_PAGE
} // doEndTag()
} // TagError
2.web.xml
<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app>
<taglib>
<taglib-uri>/testTaglib</taglib-uri>
<taglib-location>/WEB-INF/tlds/testTld.tld</taglib-location>
</taglib>
</web-app>
3.testTld.tld
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE taglib
PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.1//EN"
"http://java.sun.com/j2ee/dtds/web-jsptaglibrary_1_1.dtd">
<taglib>
<tlibversion>1.0</tlibversion>
<jspversion>1.1</jspversion>
<shortname>testTld</shortname>
<info>Testing jsp tags</info>
<tag>
<name>tagError</name>
<tagclass>com.tek271.testTags.TagError</tagclass>
<bodycontent>JSP</bodycontent> 
<info>Show a string as an error message</info>
<attribute>
<name>color</name>
<required>false</required>
</attribute>
</tag>
</taglib>
4.testJsp.jsp
<%@ taglib uri="/testTaglib" prefix="test" %>
<html>
<head>
<title>Testing Tag Library</title>
</head>
<body>
<test:tagError>Invalid user name</test:tagError>
<test:tagError color="blue">Invalid Password</test:tagError>
</body>
</html>
but i am getting the following error.
Apache Tomcat/4.0.3 - HTTP Status 500 - Internal Server Error
type Exception report
message Internal Server Error
description The server encountered an internal error (Internal Server Error) that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: File "/testTaglib" not found
at org.apache.jasper.compiler.TagLibraryInfoImpl.(TagLibraryInfoImpl.java:214)
at org.apache.jasper.compiler.TagLibraryInfoImpl.(TagLibraryInfoImpl.java:174)
at org.apache.jasper.compiler.JspParseEventListener.processTaglibDirective(JspParseEventListener.java:1162)
at org.apache.jasper.compiler.JspParseEventListener.handleDirective(JspParseEventListener.java:758)
at org.apache.jasper.compiler.DelegatingListener.handleDirective(DelegatingListener.java:121)
at org.apache.jasper.compiler.Parser$Directive.accept(Parser.java:255)
at org.apache.jasper.compiler.Parser.parse(Parser.java:1145)
at org.apache.jasper.compiler.Parser.parse(Parser.java:1103)
at org.apache.jasper.compiler.Parser.parse(Parser.java:1099)
at org.apache.jasper.compiler.ParserController.parse(ParserController.java:213)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:210)
at org.apache.jasper.servlet.JspServlet.loadJSP(JspServlet.java:552)
at org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadIfNecessary(JspServlet.java:177)
at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:189)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:382)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:474)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:190)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2343)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1012)
at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1107)
at java.lang.Thread.run(Thread.java:536)
why is it like this ?please give me a solution.
Thanking in advance.
From
Vinod A.

Dear patreck ,
It does not work.
I have replaced the line
<%@ taglib uri="/testTaglib" prefix="test" %>
with
<%@ taglib uri="WEB-INF/tlds/testTaglib" prefix="test" %>
but now it shows the error ,
description The server encountered an internal error (Internal Server Error) that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: File "/testTags/WEB-INF/tlds/testTaglib" not found
any more suggestion ?
From Vinod A.

Rotating JPEG images with feh [SOLVED]

A funny thing happened to me using feh today.
It seems it can't rotate JPEG images 90 degrees (neither clockwise, nor counterclockwise). Whenever I try (with different files), feh dies with the following error message:
Bogus virtual array access
It can do it if it's 180 degrees. It can also rotate PNG images 90 and 180 degrees without any problem.
Did someone else experience this? Is the new libjpeg to blame? Should I open a bug report?
Last edited by megadriver (2010-03-05 06:56:25)

I'm not sure feh is actively developed/maintained any more, but you could email the author* - I'm sure he'd fix something like this. If indeed it is a bug (of course). Can't check myself, yet - will do later.
Meantime check imagemagick (and the convert command), if you need an alternative.
* though I'd be happy if I was wrong.

Rendering a jpeg image in Final Cut Express

I have a jpeg image which shows up correctly in the captured bin of Final Cut Express once it is imported, but it will not render properly. The background is black in the viewer, and the image(jpeg) in the center of the screen is a bright green square.
Im able to add motion to the image, but it does not show up in the viewer as the image, it is only a green square.
Can this be fixed in FCE?
The original file is from an email, probably from a pc, does this cause compatibitity issues?

If you have access to an image editing tool such as photoshop, I would advice you import the image into Phototshop and save it in a different format e.g, GIF format and re-import it into Final Cut Express HD. This could solve your rendering problem if all you need is to use a Still image.
Ayemenre

How to show JPEG-images with Forms?

I am able to display .bmp-images in Forms, but according to the documentation it must be possible to display JPEG-images as well. How do I do that?
null

Procedure is the same as you call bmp. but you have to write 'JPEG' in place of format where you write bmp. and file_name.JPG where you write file_name.bmp.
That may help.
Mustafa

Can't see jpeg images with RAW

Hi All,
I'm using a Canon 5d11 with setting for RAW + jpeg combo. When I import to Aperture, all I can se is the RAW CR2 image. I tried a search etc. but no luck. Am I missing something or setting to view both or are they someplace else in separate folders?
Thanks for any help.
John

Under Images menu there is a "Create Version from Master JPG". They are combined in one thumbnail but if you use the menu item on all the selected thumbnails you will get the JPG.

How to store jpeg images with IMAQ PCI-1409 without vision or labview

I have acquired an IMAQ PCI-1409 card and have it working just fine. However the card is being primarily used to aquire images for display purposes only. The only options with MAX are .tiff, .bmp and .png
It would be nice to be able to store images as .jpeg which would be easier to share with other people.
Is this possible or do I have to compress the images using another software?

Hello,
Thank you for contacting National Instruments.
Unfortunately, as you mentioned, the only save options available in MAX are TIFF, BMP, and PNG. In order to save the image as a JPEG, you will need to use another software program. Microsoft Paint will allow you to save/convert any of these types to JPEG format. Other programs (Adobe Photoshop for example) allow you to customize the compression used, but Microsoft Paint does not.
Best Regards,
Jesse D.
Applications Engineer
National Instruments

Problem with a custom tag using Jasper Report

Hi everybody, I'm deprived of hope,
I wrote this code for a custom taglib to convert a .jasper file into a .pdf file:
package com.tag;
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
import net.sf.jasperreports.engine.*;
import net.sf.jasperreports.engine.export.*;
import net.sf.jasperreports.engine.util.*;
import net.sf.jasperreports.view.*;
import java.sql.*;
import org.apache.commons.logging.*;
import java.io.*;
import java.util.*;
public class GeneratePDF extends TagSupport
private String sourceFileName = "C:\\default.jasper";
private String destinationFileName = "C:\\default.pdf";
public void setSourceFileName(String sourceFileName)
this.sourceFileName = sourceFileName;
public void setDestinationFileName(String destinationFileName)
this.destinationFileName = destinationFileName;
public int doStartTag()
return SKIP_BODY;
public int doEndTag()
try
//Passaggio parametri da passare al jasper.
Map parameters = new HashMap();
parameters.put("param1", new Integer(1));
//Preparazione del file da stampare (in questa fase si esegue la query e si inseriscono
//i valori estratti dalla query)
JasperPrint jasperPrint=JasperFillManager.fillReport(sourceFileName, parameters, getConnection());
//Creazione del PDF
JasperExportManager.exportReportToPdfFile(jasperPrint, destinationFileName);
System.exit(0);
catch(Exception e)
{ e.printStackTrace();}
return EVAL_PAGE;
/**Metodo per creare la connessione al DB*/
private static Connection getConnection() throws ClassNotFoundException, SQLException {
//Change these settings according to your local configuration
String driver = "sun.jdbc.odbc.JdbcOdbcDriver";
String connectString = "jdbc:odbc:gecoware";
String user = "admin";
String password = "password";
Class.forName(driver);
Connection conn = DriverManager.getConnection(connectString, user, password);
return conn;
No errors while compile but in execution I have this message:
javax.servlet.ServletException: net/sf/jasperreports/engine/JasperFillManager
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:872)
org.apache.jasper.runtime.PageContextImpl.access$1100(PageContextImpl.java:114)
org.apache.jasper.runtime.PageContextImpl$12.run(PageContextImpl.java:792)
java.security.AccessController.doPrivileged(Native Method)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:790)
org.apache.jsp.reportPDF_jsp._jspService(reportPDF_jsp.java:80)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:141)
javax.servlet.http.HttpServlet.service(HttpServlet.java:861)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:325)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:306)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:253)
javax.servlet.http.HttpServlet.service(HttpServlet.java:861)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:324)
org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:289)
java.security.AccessController.doPrivileged(Native Method)
javax.security.auth.Subject.doAsPrivileged(Subject.java:500)
org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:311)
org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:205)
root cause
java.lang.NoClassDefFoundError: net/sf/jasperreports/engine/JasperFillManager
com.tag.GeneratePDF.doEndTag(GeneratePDF.java:49)
org.apache.jsp.reportPDF_jsp._jspx_meth_JR_GeneratePDF_0(reportPDF_jsp.java:97)
org.apache.jsp.reportPDF_jsp._jspService(reportPDF_jsp.java:68)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:141)
javax.servlet.http.HttpServlet.service(HttpServlet.java:861)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:325)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:306)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:253)
javax.servlet.http.HttpServlet.service(HttpServlet.java:861)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:324)
org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:289)
java.security.AccessController.doPrivileged(Native Method)
javax.security.auth.Subject.doAsPrivileged(Subject.java:500)
org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:311)
org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:205)
Please HELP ME !!!!!!!!!
Thank you in advance
AleX

Do you have the Jasper classes in /WEB-INF/lib?

Problems with parameterized custom tags - urgent

Hi All,
I am not able to retrieve my attribute values in Tag Support Class?
it doesn't give any errors while compiling and also the tag works without those attributes. I am able to print some html using the same tag but not able to print the passed attribute values?
any help is highly appreciated!
Thank You.....:-)

Thanks for the response!
Infact I figured it out and made it working but still it's a question to me.
Change I have made in my .tld file is making rtexprvalue to true - "<rtexprvalue>true</rtexprvalue>".
As per documentation it should matter but bcoz of this setting to false I was not able to retrieve.
Anyways Thanks again & Have a Good Day.....:-)

Rendering A JPEG image with a custom tag

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