Manoj Zachariah

Im trying to retrieve values from a database and show the retrieved values in different text fields on a jsp page.

. . String fullname = application.getAttribute("fullname").toString(); <input type="text" name="fullname" id="label3" value = "<%= fullname %>" /> . .

i have tried printing the value of "fullname" on the jsp page and it shows the value correctly. but the above code gives me an error when calling this jsp page. i use sun application server pe 8 for deployment.

the error is

type Exception report message description The server encountered an internal error () that prevented it from fulfilling this request. exception org.apache.jasper.JasperException: Unable to compile class for JSP No Java compiler was found to compile the generated source for the JSP. This can usually be solved by copying manually $JAVA_HOME/lib/tools.jar from the JDK to the common/lib directory of the Tomcat server, followed by a Tomcat restart. If using an alternate Java compiler, please check its installation and access path. org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:87) org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:311) org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:378) org.apache.jasper.compiler.Compiler.compile(Compiler.java:421) org.apache.jasper.compiler.Compiler.compile(Compiler.java:402) org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:512) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:262) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:263) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:210) 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:585) org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:246) java.security.AccessController.doPrivileged(Native Method) javax.security.auth.Subject.doAsPrivileged(Subject.java:517) org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:268) org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:162) note The full stack trace of the root cause is available in the Sun-Java-System/Application-Server-PE-8.0 logs. Sun-Java-System/Application-Server-PE-8.0

when im trying to deploy an .ear in Sun Application Server PE 8 i get the following error. the ear has 2 web components (servlets and jsp) and one jar

distribute: D:\Project\jobs.ear Deploy action running... Deployment failed on target localhost:4848_server : Fatal Error from EJB Compiler -- rmic compilation failed !!! Operation Failed !!! ********************************************************************** [Completed (time=65.2sec, status=13)] **********************************************************************

please help...thanks in advance

im using Sun Application-Server-PE-8.0 to deploy some JSP pages. when accessing the JSP page i get this error from the server.

HTTP Status 500 - -------------------------------------------------------------------------------- type Exception report message description The server encountered an internal error () that prevented it from fulfilling this request. exception org.apache.jasper.JasperException: Unable to compile class for JSP No Java compiler was found to compile the generated source for the JSP. This can usually be solved by copying manually $JAVA_HOME/lib/tools.jar from the JDK to the common/lib directory of the Tomcat server, followed by a Tomcat restart. If using an alternate Java compiler, please check its installation and access path. org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:87) org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:311) org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:378) org.apache.jasper.compiler.Compiler.compile(Compiler.java:421) org.apache.jasper.compiler.Compiler.compile(Compiler.java:402) org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:512) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:262) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:263) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:210) 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:585) org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:246) java.security.AccessController.doPrivileged(Native Method) javax.security.auth.Subject.doAsPrivileged(Subject.java:517) org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:268) org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:162) note The full stack trace of the root cause is available in the Sun-Java-System/Application-Server-PE-8.0 logs. -------------------------------------------------------------------------------- Sun-Java-System/Application-Server-PE-8.0

i tried copying the tools.jar to the lib of the server directory and restarted the server. still i get the same error. please help.

thanks

im using Sun Application-Server-PE-8.0 to deploy some JSP pages. when accessing the JSP page i get this error from the server.

HTTP Status 500 - -------------------------------------------------------------------------------- type Exception report message description The server encountered an internal error () that prevented it from fulfilling this request. exception org.apache.jasper.JasperException: Unable to compile class for JSP No Java compiler was found to compile the generated source for the JSP. This can usually be solved by copying manually $JAVA_HOME/lib/tools.jar from the JDK to the common/lib directory of the Tomcat server, followed by a Tomcat restart. If using an alternate Java compiler, please check its installation and access path. org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:87) org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:311) org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:378) org.apache.jasper.compiler.Compiler.compile(Compiler.java:421) org.apache.jasper.compiler.Compiler.compile(Compiler.java:402) org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:512) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:262) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:263) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:210) 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:585) org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:246) java.security.AccessController.doPrivileged(Native Method) javax.security.auth.Subject.doAsPrivileged(Subject.java:517) org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:268) org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:162) note The full stack trace of the root cause is available in the Sun-Java-System/Application-Server-PE-8.0 logs. -------------------------------------------------------------------------------- Sun-Java-System/Application-Server-PE-8.0

i tried copying the tools.jar to the lib of the server directory and restarted the server. still i get the same error. please help.

thanks

create an oject for key and use it in get()

public class test { public static void main(String[] args) { Hashtable ht = new Hashtable(); Key k = new Key(10,"I am 10"); ht.put(k, "Value of 10"); System.out.println("Get with Same key different object: " + ht.get(k)); System.out.println("Get with another key: " + ht.get(new Key(11, "I am 10"))); }

I tried installing GlassFish with Mustang. The first command
java -Xmx256m -jar filename.jar , runs fine.

When running the ant command ( ant -f setup.xml ) i get the following error.

D:\Downloads\Java\glassfish>ant -f setup.xml Unable to locate tools.jar. Expected to find it in D:\Program Files\Java\jre1.6.0\lib\tools.jar Buildfile: setup.xml all: get.java.home: setup.init: check-java: get.java.home: setup.init: validate-java: [echo] Current Java Version 1.6.0-rc BUILD FAILED D:\Downloads\Java\glassfish\setup.xml:114: The following error occurred while executing this line: D:\Downloads\Java\glassfish\setup.xml:94: The following error occurred while executing this line: D:\Downloads\Java\glassfish\setup.xml:90: Please set java.home to a JDK installation Total time: 4 seconds D:\Downloads\Java\glassfish>

i have jdk set in the path to D:\Program Files\Java\jdk1.6.0\bin and path for ant to D:\Downloads\Java\glassfish\lib\ant\bin in the environment variables.

Please help and thanks in advance

I tried installing GlassFish with Mustang. The first command
java -Xmx256m -jar filename.jar , runs fine.

When running the ant command ( ant -f setup.xml ) i get the following error.

D:\Downloads\Java\glassfish>ant -f setup.xml Unable to locate tools.jar. Expected to find it in D:\Program Files\Java\jre1.6. 0\lib\tools.jar Buildfile: setup.xml all: get.java.home: setup.init: check-java: get.java.home: setup.init: validate-java: [echo] Current Java Version 1.6.0-rc BUILD FAILED D:\Downloads\Java\glassfish\setup.xml:114: The following error occurred while ex ecuting this line: D:\Downloads\Java\glassfish\setup.xml:94: The following error occurred while exe cuting this line: D:\Downloads\Java\glassfish\setup.xml:90: Please set java.home to a JDK installa tion Total time: 4 seconds D:\Downloads\Java\glassfish>

i have jdk set in the path to D:\Program Files\Java\jdk1.6.0\bin and path for ant to D:\Downloads\Java\glassfish\lib\ant\bin in the environment variables.

Please help and thanks in advance

thanks...found the answer there.... here is it for others with the same error....
Other than the exeption being thrown at startup and the failure to load the buttons.jar file, the rest of the BeanBox will work fine. As a work around, you may want to go into the sunw.demo.buttons.ExplicitBeanInfo.getEventSetDescriptors() source file, change the first actionPerformed string in the first EventSetDescriptor to be action and recompile the class. The source file for the demo beans used in the BeanBox is in <BDK_INSTALL_DIR>demo\sunw\demo\buttons\ExplicitButtonBeanInfo.java. At around line 47, change: EventSetDescriptor push = new EventSetDescriptor(beanClass, "actionPerformed", java.awt.event.ActionListener.class, "actionPerformed"); to: EventSetDescriptor push = new EventSetDescriptor(beanClass, "action", java.awt.event.ActionListener.class, "actionPerformed");

hi,

i just downloaded the BDK zip file from sun.com and when trying to run it i get the following error. but i am able to open it fine, but no button option come up in the toolbox. i can see the juggler, etc there.

i have "C:\Program Files\Java\jdk1.5.0_05\bin" in my path.

please help...thanks in advance

C:\beans\beanbox>run C:\beans\beanbox>if "Windows_NT" == "Windows_NT" setlocal C:\beans\beanbox>set CLASSPATH=classes;..\lib\methodtracer.jar;..\infobus.jar C:\beans\beanbox>java sun.beanbox.BeanBoxFrame C:\beans\jars\buttons.jar: jar load failed: java.lang.Error: java.beans.IntrospectionException: Method "actionPerformed" should have argument "ActionPerformedEvent" java.lang.Error: java.beans.IntrospectionException: Method "actionPerformed" should have argument "ActionPerformedEvent" at sunw.demo.buttons.ExplicitButtonBeanInfo.getEventSetDescriptors(ExplicitButtonBeanInfo.java:60) at java.beans.Introspector.getTargetEventInfo(Unknown Source) at java.beans.Introspector.getBeanInfo(Unknown Source) at java.beans.Introspector.getBeanInfo(Unknown Source) at sun.beanbox.JarInfo.<init>(JarInfo.java:66) at sun.beanbox.JarLoader.createJarInfo(JarLoader.java:292) at sun.beanbox.JarLoader.loadJar(JarLoader.java:197) at sun.beanbox.JarLoader.loadJarDoOnBean(JarLoader.java:207) at sun.beanbox.ToolBoxPanel.addBeansInJar(ToolBox.java:175) at sun.beanbox.ToolBoxPanel.<init>(ToolBox.java:105) at sun.beanbox.ToolBoxScrollPane.<init>(ToolBox.java:69) at sun.beanbox.ToolBox.<init>(ToolBox.java:28) at sun.beanbox.BeanBoxFrame.<init>(BeanBoxFrame.java:124) at sun.beanbox.BeanBoxFrame.main(BeanBoxFrame.java:91) C:\beans\beanbox>

hi,

i just downloaded the BDK zip file from sun.com and when trying to run it i get the following error. but i am able to open it fine, but no buttons come up in the toolbox.

i have "C:\Program Files\Java\jdk1.5.0_05\bin" in my path.

please help...thanks in advance

C:\beans\beanbox>run C:\beans\beanbox>if "Windows_NT" == "Windows_NT" setlocal C:\beans\beanbox>set CLASSPATH=classes;..\lib\methodtracer.jar;..\infobus.jar C:\beans\beanbox>java sun.beanbox.BeanBoxFrame C:\beans\jars\buttons.jar: jar load failed: java.lang.Error: java.beans.IntrospectionException: Method "actionPerformed" should have argument "ActionPerformedEvent" java.lang.Error: java.beans.IntrospectionException: Method "actionPerformed" should have argument "ActionPerformedEvent" at sunw.demo.buttons.ExplicitButtonBeanInfo.getEventSetDescriptors(ExplicitButtonBeanInfo.java:60) at java.beans.Introspector.getTargetEventInfo(Unknown Source) at java.beans.Introspector.getBeanInfo(Unknown Source) at java.beans.Introspector.getBeanInfo(Unknown Source) at sun.beanbox.JarInfo.<init>(JarInfo.java:66) at sun.beanbox.JarLoader.createJarInfo(JarLoader.java:292) at sun.beanbox.JarLoader.loadJar(JarLoader.java:197) at sun.beanbox.JarLoader.loadJarDoOnBean(JarLoader.java:207) at sun.beanbox.ToolBoxPanel.addBeansInJar(ToolBox.java:175) at sun.beanbox.ToolBoxPanel.<init>(ToolBox.java:105) at sun.beanbox.ToolBoxScrollPane.<init>(ToolBox.java:69) at sun.beanbox.ToolBox.<init>(ToolBox.java:28) at sun.beanbox.BeanBoxFrame.<init>(BeanBoxFrame.java:124) at sun.beanbox.BeanBoxFrame.main(BeanBoxFrame.java:91) C:\beans\beanbox>

this is the first time im using threads. ended up with a problem in the code below. im trying to draw a moving line using the thread

import java.awt.*; import javax.swing.*; class Left implements Runnable { int x,y,leg1; Thread t1; Left() { t1 = new Thread(this); t1.start(); } public void run() { try { for(leg1=300;leg1<=600;leg1++) { repaint(); t1.sleep(10); } } catch(Exception e) { System.out.print(e); } } public void paint(Graphics g) { g.clearRect(0,0,800,600); g.drawOval(400,200,50,50); g.drawLine(425,250,425,400); g.drawLine(425,400,leg1,500); } } public class Walking extends JFrame { public Walking() { setBounds(0,0,800,600); setVisible(true); } public static void main(String a[]) { Left l = new Left(); } }

this code gives me an error as below.
Walking.java [18:1] cannot resolve symbol symbol : method repaint () location: class Left repaint(); ^ 1 error

thanks

thanks

i want to open a jsp page in the same browser window / not in a frame. The problem is that my button (which does the reload) is in a frame, so only the frame reloads.

I have a page that has an Add button. On clicking that, a child window opens with form. When the child window form is submitted by the user the (child)window should close and the parent form should be reloaded with what ever i inputted in the child window.
How would you set this up?

its works now, thanks