diff --git a/node/build.gradle b/node/build.gradle
index 99eb8f5e23..506d71a0dc 100644
--- a/node/build.gradle
+++ b/node/build.gradle
@@ -96,9 +96,6 @@ dependencies {
     // For async logging
     compile "com.lmax:disruptor:$disruptor_version"
 
-    // JOpt: for command line flags.
-    compile "net.sf.jopt-simple:jopt-simple:$jopt_simple_version"
-
     // Artemis: for reliable p2p message queues.
     // TODO: remove the forced update of commons-collections and beanutils when artemis updates them
     compile "org.apache.commons:commons-collections4:${commons_collections_version}"
diff --git a/node/src/main/kotlin/net/corda/node/utilities/AbstractArgsParser.kt b/node/src/main/kotlin/net/corda/node/utilities/AbstractArgsParser.kt
deleted file mode 100644
index eeba175842..0000000000
--- a/node/src/main/kotlin/net/corda/node/utilities/AbstractArgsParser.kt
+++ /dev/null
@@ -1,39 +0,0 @@
-package net.corda.node.utilities
-
-import joptsimple.OptionException
-import joptsimple.OptionParser
-import joptsimple.OptionSet
-import kotlin.system.exitProcess
-
-abstract class AbstractArgsParser<out T : Any> {
-    protected val optionParser = OptionParser()
-    private val helpOption = optionParser.acceptsAll(listOf("h", "help"), "show help").forHelp()
-
-    /**
-     * Parses the given [args] or exits the process if unable to, printing the help output to stderr.
-     * If the help option is specified then the process is also shutdown after printing the help output to stdout.
-     */
-    fun parseOrExit(vararg args: String): T {
-        try {
-            val optionSet = optionParser.parse(*args)
-            if (optionSet.has(helpOption)) {
-                optionParser.printHelpOn(System.out)
-                exitProcess(0)
-            }
-            return doParse(optionSet)
-        } catch (e: Exception) {
-            when (e) {
-                is OptionException, is IllegalArgumentException -> {
-                    System.err.println(e.message ?: "Unable to parse arguments.")
-                    optionParser.printHelpOn(System.err)
-                    exitProcess(1)
-                }
-                else -> throw e
-            }
-        }
-    }
-
-    fun parse(vararg args: String): T = doParse(optionParser.parse(*args))
-
-    protected abstract fun doParse(optionSet: OptionSet): T
-}
\ No newline at end of file
diff --git a/samples/irs-demo/web/build.gradle b/samples/irs-demo/web/build.gradle
index 9f92026c58..d79abbbc92 100644
--- a/samples/irs-demo/web/build.gradle
+++ b/samples/irs-demo/web/build.gradle
@@ -71,6 +71,10 @@ dependencies {
     compile project(":client:jackson")
     compile project(":test-utils")
     compile project(path: ":samples:irs-demo:cordapp", configuration: "demoArtifacts")
+
+	// JOpt: for command line flags.
+    compile "net.sf.jopt-simple:jopt-simple:$jopt_simple_version"
+
     testCompile('org.springframework.boot:spring-boot-starter-test') {
         exclude module: "spring-boot-starter-logging"
         exclude module: "logback-classic"
diff --git a/tools/explorer/build.gradle b/tools/explorer/build.gradle
index e16e786058..d489eac55e 100644
--- a/tools/explorer/build.gradle
+++ b/tools/explorer/build.gradle
@@ -48,6 +48,9 @@ dependencies {
     compile 'org.controlsfx:controlsfx:8.40.12'
     // This provide com.apple.eawt stub for non-mac system.
     compile 'com.yuvimasory:orange-extensions:1.3.0'
+
+    // JOpt: for command line flags.
+    compile "net.sf.jopt-simple:jopt-simple:$jopt_simple_version"
 }
 
 tasks.withType(JavaCompile) {
diff --git a/tools/explorer/src/main/kotlin/net/corda/explorer/Main.kt b/tools/explorer/src/main/kotlin/net/corda/explorer/Main.kt
index 98503fa1d4..9fbc3199fc 100644
--- a/tools/explorer/src/main/kotlin/net/corda/explorer/Main.kt
+++ b/tools/explorer/src/main/kotlin/net/corda/explorer/Main.kt
@@ -124,10 +124,10 @@ class Main : App(MainView::class) {
 }
 
 /**
- * This main method will starts 5 nodes (Notary, USA Bank, UK Bank, Bob and Alice) locally for UI testing,
- * they will be on localhost ports 20005, 20008, 20011, 20014 and 20017 respectively.
+ * This main method will start 5 nodes (Notary, USA Bank, UK Bank, Bob and Alice) locally for UI testing,
+ * which will bind to ports 20005, 20008, 20011, 20014 and 20017 locally.
  *
- * The simulation start with pre-allocating chunks of cash to each of the party in 2 currencies (USD, GBP), then it enter a loop to generate random events.
+ * The simulation starts by pre-allocating chunks of cash to each of the parties in 2 currencies (USD, GBP), then it enters a loop which generates random events.
  * On each iteration, the issuers will execute a Cash Issue or Cash Exit flow (at a 9:1 ratio) and a random party will execute a move of cash to another random party.
  */
 fun main(args: Array<String>) {
diff --git a/tools/shell/build.gradle b/tools/shell/build.gradle
index 13338150fc..1887bdb5fe 100644
--- a/tools/shell/build.gradle
+++ b/tools/shell/build.gradle
@@ -39,10 +39,6 @@ dependencies {
     // Jackson support: serialisation to/from JSON, YAML, etc.
     compile project(':client:jackson')
 
-
-    // JOpt: for command line flags.
-    compile "net.sf.jopt-simple:jopt-simple:$jopt_simple_version"
-
     // CRaSH: An embeddable monitoring and admin shell with support for adding new commands written in Groovy.
     compile("com.github.corda.crash:crash.shell:$crash_version") {
         exclude group: "org.slf4j", module: "slf4j-jdk14"