restart Jar Application - Java File Path IO

Java examples for File Path IO:Jar File

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Description

restart Jar Application

Demo Code


//package com.java2s;
import java.io.IOException;
import java.lang.management.ManagementFactory;
import java.util.List;

public class Main {
    public static void restartApplication(Runnable runBeforeRestart)
            throws IOException {
        try {/*from  w ww . j  a  v  a  2  s . co m*/
            String java = System.getProperty("java.home") + "/bin/java";
            List<String> vmArguments = ManagementFactory.getRuntimeMXBean()
                    .getInputArguments();
            StringBuffer vmArgsOneLine = new StringBuffer();

            for (String arg : vmArguments) {
                if (!arg.contains("-agentlib")) {
                    vmArgsOneLine.append(arg);
                    vmArgsOneLine.append(" ");
                }
            }

            final StringBuilder cmd = new StringBuilder("\"" + java + "\" "
                    + vmArgsOneLine);

            String javaCommand = System.getProperty("sun.java.command");

            if (javaCommand.endsWith(".jar")) {
                cmd.append("-jar \"").append(javaCommand).append("\"");
            } else {
                cmd.append("-cp \"")
                        .append(System.getProperty("java.class.path"))
                        .append("\" ").append(javaCommand);
            }

            Runtime.getRuntime().addShutdownHook(new Thread() {
                @Override
                public void run() {
                    try {
                        Runtime.getRuntime().exec(cmd.toString());
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            });

            if (runBeforeRestart != null) {
                runBeforeRestart.run();
            }

            System.exit(0);
        } catch (Exception e) {
            throw new IOException(
                    "Error while trying to restart the application", e);
        }
    }
}

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