Question

Using Apache ANT to built. Included the commons-io-2.4.jar in classpath.
Compiler shows this error:

 error: cannot find symbol
    [javac]         IOUtils.copy(in, out);

EDIT – code

File f1 = new File("c:\\json\\user.json");
 File f2 = new File("c:\\json\\user1.json");

 InputStream in = new FileInputStream(f1);
 OutputStream out = new FileOutputStream(f2, true); // appending output stream

 try {
    IOUtils.copy(in, out);
 }
 finally {
     IOUtils.closeQuietly(in);
     IOUtils.closeQuietly(out);
 }

EDIT- Answer

Did a mistake with the imports.
import org.apache.commons.io.IOUtils;

Answer 1

To try few things please:

• Verify that code has:

  import org.apache.commons.compress.utils.IOUtils;

• Verify that build.xml has a classpath reference for javac task that contains:

  <classpath>
<pathelement path="${classpath}"/>
<pathelement location="lib/commons-io-2.4.jar"/>
</classpath>