Question

From Java, is it possible to get the complete commandline with all arguments that started the application?

System.getEnv() and System.getProperties() do not appear to contain the values.

Answer 1

Some of it is available from the RuntimeMXBean, obtained by calling ManagementFactory.getRuntimeMXBean()

You can then, for example call getInputArguments()

The javadocs for which say:

Returns the input arguments passed to the Java virtual machine which does not include the arguments to the main method. This method returns an empty list if there is no input argument to the Java virtual machine.

Some Java virtual machine implementations may take input arguments from multiple different sources: for examples, arguments passed from the application that launches the Java virtual machine such as the ‘java’ command, environment variables, configuration files, etc.

Typically, not all command-line options to the ‘java’ command are passed to the Java virtual machine. Thus, the returned input arguments may not include all command-line options.