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Posted to user@ant.apache.org by Paolo <pa...@wci.ath.cx> on 2008/04/15 17:35:19 UTC
NullPointerException with ant Javac() api
Hello,
I'm new to ant api. i would like to compile a source from my
application, and i wrote the method below.
When i execute it, i get a NullPointerException at
org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:807)
where it says: File srcDir = getProject().resolveFile(list[i]);
(it's on the last instruction of this snippet, task.execute())
so i guess i screwed up with all the Path stuff..
But how to create and set up a Path object to feed Javac object?
thanks in advance,
Paolo
public void subsystemCreate(String id, String poolSize) {
String beanName = "BpsAgent"+id;
String jbossHome =
System.getProperty("jboss.home.dir"+"/"); String serverHome =
System.getProperty("jboss.server.home.dir"+"/"); String tmpDir =
System.getProperty("jboss.server.home.dir")+"/deploy/"+appName+".ear/tmp/src/com/mersy/batch/mdb/";
String appDir =
System.getProperty("jboss.server.home.dir")+"/deploy/"+appName+".ear/";
String src =
System.getProperty("jboss.server.home.dir")+"/deploy/"+appName+".ear/tmp/src/";
String dst =
System.getProperty("jboss.server.home.dir")+"/deploy/"+appName+".ear/tmp/bin/";
System.out.println(beanName); System.out.println(jbossHome);
System.out.println(serverHome); System.out.println(tmpDir);
System.out.println(appDir);
System.out.println(src);
System.out.println(dst);
boolean success = (new File(tmpDir)).mkdirs();
if (!success) {
System.out.println("Megaerrore1");
return ;
}
File dstPath=new File(dst);
success = (dstPath.mkdirs());
if (!success) {
System.out.println("Megaerrore2");
return ;
}
createMdb(id,poolSize,tmpDir);
Project project = new Project();
Path path = new Path(project);
path.setPath(jbossHome+"/lib/hibernate3.jar;" +
serverHome+"/lib/ejb3-persistence.jar;"
+ serverHome+"/lib/hibernate-annotations.jar;"+
serverHome+"/lib/jboss-remoting.jar;"+
serverHome+"/deploy/ejb3.deployer/jboss-ejb3.jar;"+
serverHome+"/deploy/ejb3.deployer/jboss-ejb3x.jar;"+
serverHome+"/deploy/ejb3.deployer/jboss-annotations-ejb3.jar;"+
appDir+"/locallib/javaee.jar;"+
appDir+"/locallib/a001llayer.jar;"+
serverHome+"/lib/log4j.jar");
Path srcPath=new Path(project);
srcPath.setPath(src);
Javac task = new Javac();
task.setSrcdir(srcPath);
task.setDestdir(dstPath);
task.setClasspath(path);
task.execute();
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Re: NullPointerException with ant Javac() api
Posted by Paolo <pa...@wci.ath.cx>.
Thank you very much! that did the trick!
And thanks for the link!
Paolo
On Wed, 16 Apr 2008 07:24:36 +0200
<Ja...@rzf.fin-nrw.de> wrote:
> Your task doesnt have a reference to your project, therefore
> task.getProject() returns null
>
> Try setting the project reference
> task.setProject(project);
> task.execute();
>
>
> Maybe you want to have a look at Leafcutter
> https://leafcutter.dev.java.net/
>
>
> Jan
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AW: NullPointerException with ant Javac() api
Posted by Ja...@rzf.fin-nrw.de.
Your task doesnt have a reference to your project, therefore
task.getProject() returns null
Try setting the project reference
task.setProject(project);
task.execute();
Maybe you want to have a look at Leafcutter
https://leafcutter.dev.java.net/
Jan
> -----Ursprüngliche Nachricht-----
> Von: Paolo [mailto:paolo@wci.ath.cx]
> Gesendet: Dienstag, 15. April 2008 17:35
> An: user@ant.apache.org
> Betreff: NullPointerException with ant Javac() api
>
> Hello,
> I'm new to ant api. i would like to compile a source from my
> application, and i wrote the method below.
>
> When i execute it, i get a NullPointerException at
> org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:807)
>
> where it says: File srcDir = getProject().resolveFile(list[i]);
> (it's on the last instruction of this snippet, task.execute())
>
> so i guess i screwed up with all the Path stuff..
> But how to create and set up a Path object to feed Javac object?
> thanks in advance,
> Paolo
>
>
>
> public void subsystemCreate(String id, String poolSize) {
>
> String beanName = "BpsAgent"+id;
> String jbossHome =
> System.getProperty("jboss.home.dir"+"/"); String serverHome =
> System.getProperty("jboss.server.home.dir"+"/"); String tmpDir =
> System.getProperty("jboss.server.home.dir")+"/deploy/"+appName
> +".ear/tmp/src/com/mersy/batch/mdb/";
> String appDir =
> System.getProperty("jboss.server.home.dir")+"/deploy/"+appName
> +".ear/";
> String src =
> System.getProperty("jboss.server.home.dir")+"/deploy/"+appName
> +".ear/tmp/src/";
> String dst =
> System.getProperty("jboss.server.home.dir")+"/deploy/"+appName
> +".ear/tmp/bin/";
> System.out.println(beanName); System.out.println(jbossHome);
> System.out.println(serverHome); System.out.println(tmpDir);
> System.out.println(appDir);
> System.out.println(src);
> System.out.println(dst);
>
>
> boolean success = (new File(tmpDir)).mkdirs();
> if (!success) {
> System.out.println("Megaerrore1");
> return ;
> }
>
> File dstPath=new File(dst);
> success = (dstPath.mkdirs());
> if (!success) {
> System.out.println("Megaerrore2");
> return ;
> }
>
> createMdb(id,poolSize,tmpDir);
>
>
> Project project = new Project();
> Path path = new Path(project);
> path.setPath(jbossHome+"/lib/hibernate3.jar;" +
> serverHome+"/lib/ejb3-persistence.jar;"
> + serverHome+"/lib/hibernate-annotations.jar;"+
> serverHome+"/lib/jboss-remoting.jar;"+
>
> serverHome+"/deploy/ejb3.deployer/jboss-ejb3.jar;"+
>
> serverHome+"/deploy/ejb3.deployer/jboss-ejb3x.jar;"+
>
> serverHome+"/deploy/ejb3.deployer/jboss-annotations-ejb3.jar;"+
> appDir+"/locallib/javaee.jar;"+
> appDir+"/locallib/a001llayer.jar;"+
> serverHome+"/lib/log4j.jar");
>
> Path srcPath=new Path(project);
> srcPath.setPath(src);
>
>
>
> Javac task = new Javac();
>
> task.setSrcdir(srcPath);
> task.setDestdir(dstPath);
> task.setClasspath(path);
>
> task.execute();
>
>
>
>
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>
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