Use deterministic hash for generate ProtoLogImpl postfix

import java.util.concurrent.Executors

import java.util.jar.JarOutputStream

import java.util.zip.ZipEntry

import kotlin.math.abs

import kotlin.random.Random

import kotlin.math.absoluteValue

import kotlin.system.exitProcess

object ProtoLogTool {

    }

    private fun processClasses(command: CommandOptions) {

        val generationHash = abs(Random.nextInt())

        // A deterministic hash based on the group jar path and the source files we are processing.

        // The hash is required to make sure different ProtoLogImpls don't conflict.

        val generationHash = (command.javaSourceArgs.toTypedArray() + command.protoLogGroupsJarArg)

                .contentHashCode().absoluteValue

        // Need to generate a new impl class to inject static constants into the class.

        val generatedProtoLogImplClass =

            "com.android.internal.protolog.ProtoLogImpl_$generationHash"