"Java file" & "Jsp file" compilation issues in Eclipse

Hi,
Eclipse
Question 1:
I have set the value for preference->java->Installed JREs as : j2re1.4.2_07 not to jdk
When I write a java file, its compiling, how? From where its using "javac" exe file for compilation.
Question 2:
Whereas in prefrence->Tomcat->JVMSettings -> JRE(drop down box) set value as j2re.1.4.2_07
When I write a jsp file as follows
index.jsp
<html>
<body>
<%java.util.Date d = new java.util.Date();%>
Todays date is <%= d.getDate()%> and this jsp page worked!
</body>
</html>
when i try to save this file & strat tomcat I got exception as follows:
Exception:
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: -1 in the jsp file: null
Generated servlet error:
[javac] Compiling 1 source file
Please clear my doubts.
Thanks,
Hari

Try going into your TOMCAT_HOME/conf/web.xml and look for this section:
<servlet>
<servlet-name>jsp</servlet-name>
<servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class>
<init-param>
<param-name>logVerbosityLevel</param-name>
<param-value>WARNING</param-value>
</init-param>
<init-param>
<param-name>fork</param-name>
<param-value>false</param-value>
</init-param>
<load-on-startup>3</load-on-startup>
</servlet>
Change the <param-value> for fork from false to true and see if that helps.
Otherwise it's a problem with your JSP.

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Kevin Price wrote:
Hello.
I am new to working with WAR files and the whole process of it. A little
background on what we are using. We are using, WLS 6.1 SP3. I am using the
ant.bat that is supplied in the bin directory of the WLS install.
I am trying to work with ANT and getting it to build the file. I am making
progress, but at a point where I am having trouble getting my java code
files to compile using ant. I am having one issue and looking to do one
other item.
1) I would like to precompile the JSPs if possible prior to putting into the
WAR file. Not sure if this is done or not, but there was a utility when I
was working with ibm's app server that gave us the ability to do a batch
complile. Was thinking that maybe a similair concept is possibly here.you can use weblogic.jspc
http://e-docs.bea.com/wls/docs70/jsp/reference.html#57794
or just set the precompile flag in weblogic.xml
You can configure WebLogic Server to precompile your JSPs when a Web
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element of the weblogic.xml deployment descriptor.
>
2) Having issue getting ant to compile code properly. In the compile
section of the build.xml file for ant, I tell it where the source files are,
and the destionation folder for the compiled class files. I then try to set
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I may be going about this all wrong, but dont know. Here is the compile
section of the build.xml I am using:
<target name="compile" depends="prepare">
<javac srcdir="classes" destdir="${deploy.home}/WEB-INF/classes"
classpath="$(lib.home)"
debug="on" optimize="on" deprecation="off"/>
</target>
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debug="on" optimize="on" deprecation="off">
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Any help is appreciated and thanks in advance. Hopefully not sounding too
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"Java file" & "Jsp file" compilation issues in Eclipse

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