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Improve error messages for failed starts 

Signed-off-by: Greg Wilkins <gregw@webtide.com>
This commit is contained in:
Greg Wilkins 2020-09-25 16:47:08 +02:00
parent c17bcc7db8
commit c5f9faa479
1 changed files with 16 additions and 3 deletions
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19
jetty-start/src/main/java/org/eclipse/jetty/start/Main.java
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@ -31,6 +31,7 @@ import java.net.ConnectException;
import java.net.InetAddress; import java.net.InetAddress;
import java.net.Socket; import java.net.Socket;
import java.net.SocketTimeoutException; import java.net.SocketTimeoutException;
import java.nio.file.Files;
import java.nio.file.Path; import java.nio.file.Path;
import java.util.List; import java.util.List;
import java.util.Locale; import java.util.Locale;
@ -187,18 +188,30 @@ public class Main
return ""; return "";
} }
public void invokeMain(ClassLoader classloader, StartArgs args) throws IllegalAccessException, InvocationTargetException, NoSuchMethodException, ClassNotFoundException, IOException public void invokeMain(ClassLoader classloader, StartArgs args) throws IllegalAccessException, InvocationTargetException, NoSuchMethodException, IOException
{ {
if (args.getEnabledModules().isEmpty())
{
if (Files.exists(getBaseHome().getBasePath("start.jar")))
StartLog.error("Do not start with ${jetty.base} == ${jetty.home}!");
else
StartLog.error("No enabled jetty modules found!");
StartLog.info("${jetty.home} = " + getBaseHome().getHomePath());
StartLog.info("${jetty.base} = " + getBaseHome().getBasePath());
StartLog.error("Please create and/or configure a ${jetty.base} directory.");
usageExit(ERR_INVOKE_MAIN);
return;
}
Class<?> invokedClass = null; Class<?> invokedClass = null;
String mainclass = args.getMainClassname(); String mainclass = args.getMainClassname();
try try
{ {
invokedClass = classloader.loadClass(mainclass); invokedClass = classloader.loadClass(mainclass);
} }
catch (ClassNotFoundException e) catch (ClassNotFoundException e)
{ {
StartLog.error("Nothing to start, exiting ..."); StartLog.error("Unable to find: " + mainclass);
StartLog.debug(e); StartLog.debug(e);
usageExit(ERR_INVOKE_MAIN); usageExit(ERR_INVOKE_MAIN);
return; return;