Compiling with JRockit using ant

I am considering switching to JRockit.
Our java code is compiled using ant, with the 'javac' task.
The javac task has an option to invoke different compilers:
- classic (the standard compiler of JDK 1.1/1.2) – javac1.1 and javac1.2 can be used as aliases.
- modern (the standard compiler of JDK 1.3/1.4/1.5/1.6) – javac1.3 and javac1.4 and javac1.5 and javac1.6 can be used as aliases.
- jikes (the Jikes compiler).
etc
The Jrockit compiler is not on this list.
I have found a suggestion (http://www2.sys-con.com/ITSG/virtualcd/Java/archives/0811/pepperdine/index.html) to use an exec call as a workaround,
but are there any alternatives? I could perhaps persuade ant to use JRockit by deinstalling any other JDK's and pointing JAVA_HOME to JRockit;
what I want however is to keep the option to use different compilers.
Has anyone got any suggestions?

The javac compiler bundled with JRockit is the exact same one that you get with the Sun JDK. Oracle licenses the JDK (class libraries, tools, etc) from Sun. So I would just set JAVA_HOME to point at JRockit as you suggest.
Henrik

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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.
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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
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http://e-docs.bea.com/wls/docs70/jsp/reference.html#57794
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>
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
the classpath so that it finds the .jar files that are necessary for my
source files to complile. But, it won't find them. And not sure how come.
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"/>
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maybe because you are not using curly braces there on lib.home??
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classpath="$(lib.home)\lib1.jar:$(lib.home)\lib2.jar"
or you can nest
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</javac>
One note, I've tried many different items in the classpath line, which
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well as if I use *.* and so on. if I list the explicit file names, it still
doesn't seem to find them.
I was wondering if anyone could help, if you need anymore information let me
know, I can send the entire build.xml if necessary. I may be missing
items, seeing that this is my first try at using ANT.
Any help is appreciated and thanks in advance. Hopefully not sounding too
off the wall. Hopefully get some clarification and understanding.
Thank you.
Kevin.

Problem in compiling with ant?

Hi,
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C:/>ant build
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can any one help me to solve this problem

Cross-Post:
http://forum.java.sun.com/thread.jspa?threadID=589924&tstart=0

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where is the error i cannot figure out.
am attaching the code of build.xml for reference.
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<mkdir dir="${build.home}/WEB-INF/classes"/>
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</target>
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password="${manager.password}"
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<list url="${manager.url}"
username="${manager.username}"
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<target name="prepare">

<mkdir dir="${build.home}"/>
<mkdir dir="${build.home}/WEB-INF"/>
<mkdir dir="${build.home}/WEB-INF/classes"/>

<copy todir="${build.home}">
<fileset dir="${web.home}"/>
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password="${manager.password}"
path="${app.path}"/>
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So is context.xml actually overwriting the settings found in server.xml?I think so. The way I understand it is the the context.xml file saves you from having to edit server.xml. It is preferred for each web app to do its own config, rather than lumping them all together in server.xml.
And what would be the best way to create the war file? IAt its heart, a WAR is just a zip file with its contents laid out in according to the specification of a web application directory structure.
So the simplest way to make a war file is to zip up your directory structure with a tool like winzip, and rename it to be myApp.war.
Regarding ant, I would recommend you take a look through [url http://jakarta.apache.org/tomcat/tomcat-4.1-doc/appdev/index.html
]this tutorial. It explains the basics of website layout, configuration and deployment.
On [url http://jakarta.apache.org/tomcat/tomcat-4.1-doc/appdev/source.html] this page in particular, it includes a link to a basic ant file that you can use as a starting point.
Cheers,
evnafets

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Java code Snippet
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Damn it, so I do have to tackle the 'manifest not
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I just placed it into the root of the JAR, but when I
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2 begin
3    for rec in ( select table_name
4                 from   user_tables
5                 where table_name = p_tablename
6               ) loop
7      begin
8        execute immediate 'drop table ' || rec.table_name;
9        dbms_output.put_line( 'table ' || rec.table_name || ' dropped.' );
10        return 'SUCCEEDED';
11      exception
12        when others then
13          dbms_output.put_line( 'table ' || rec.table_name || ' coud not be dropped.' );
14          return 'FAILED';
15      end;
16    end loop;
17    return 'FAILED';
18* end;
SQL> /
Function created.
SQL> exec :ret := sidd ( 'my_t1' );
PL/SQL procedure successfully completed.
RET
FAILED
SQL> exec :ret := sidd ( 'MY_T1' );
table MY_T1 dropped.
PL/SQL procedure successfully completed.
RET
SUCCEEDED
SQL>

Compiling with JRockit using ant

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