diff --git a/src/test/groovy/com/netflix/gradle/plugins/application/OspackageApplicationSpringBootPluginLauncherSpec.groovy b/src/test/groovy/com/netflix/gradle/plugins/application/OspackageApplicationSpringBootPluginLauncherSpec.groovy
index 682a56df..5cc37ace 100644
--- a/src/test/groovy/com/netflix/gradle/plugins/application/OspackageApplicationSpringBootPluginLauncherSpec.groovy
+++ b/src/test/groovy/com/netflix/gradle/plugins/application/OspackageApplicationSpringBootPluginLauncherSpec.groovy
@@ -16,7 +16,6 @@
 
 package com.netflix.gradle.plugins.application
 
-import com.google.common.base.Throwables
 import com.netflix.gradle.plugins.deb.Scanner
 import nebula.test.IntegrationSpec
 import org.junit.Rule
@@ -39,7 +38,7 @@ class OspackageApplicationSpringBootPluginLauncherSpec extends IntegrationSpec {
         def result = runTasks("help")
 
         then:
-        Throwables.getRootCause(result.failure).message == "The 'org.springframework.boot' plugin must be applied before applying this plugin"
+        result.failure.getCause().getCause().getCause().message == "The 'org.springframework.boot' plugin must be applied before applying this plugin"
     }
 
     String buildScript(String bootVersion, File startScript) {
diff --git a/src/test/groovy/com/netflix/gradle/plugins/deb/DebPluginTest.groovy b/src/test/groovy/com/netflix/gradle/plugins/deb/DebPluginTest.groovy
index 00d8f8ae..4507d06f 100644
--- a/src/test/groovy/com/netflix/gradle/plugins/deb/DebPluginTest.groovy
+++ b/src/test/groovy/com/netflix/gradle/plugins/deb/DebPluginTest.groovy
@@ -16,7 +16,6 @@
 
 package com.netflix.gradle.plugins.deb
 
-import com.google.common.io.Files
 import nebula.test.ProjectSpec
 import nebula.test.dependencies.DependencyGraph
 import nebula.test.dependencies.GradleDependencyGenerator
@@ -32,7 +31,7 @@ class DebPluginTest extends ProjectSpec {
         project.version = 1.0
 
         File appleFile = new File(project.buildDir, 'src/apple')
-        Files.createParentDirs(appleFile)
+        FileUtils.forceMkdirParent(appleFile)
         appleFile.text = 'apple'
 
         when:
@@ -298,7 +297,7 @@ class DebPluginTest extends ProjectSpec {
         project.version = 1.0
 
         File scriptDir = new File(projectDir, 'src')
-        Files.createParentDirs(scriptDir)
+        FileUtils.forceMkdirParent(scriptDir)
         scriptDir.mkdir()
 
         File preinstallScript = new File(scriptDir, 'preinstall')
@@ -308,7 +307,7 @@ class DebPluginTest extends ProjectSpec {
         postinstallScript.text = "#!/bin/bash\necho Postinstall"
 
         File appleFile = new File(project.buildDir, 'src/apple')
-        Files.createParentDirs(appleFile)
+        FileUtils.forceMkdirParent(appleFile)
         appleFile.text = 'apple'
 
         project.apply plugin: 'nebula.deb'
@@ -336,7 +335,7 @@ class DebPluginTest extends ProjectSpec {
         project.version = 1.0
 
         File scriptDir = new File(project.buildDir, 'src')
-        Files.createParentDirs(scriptDir)
+        FileUtils.forceMkdirParent(scriptDir)
         scriptDir.mkdir()
 
         File installScript = new File(scriptDir, 'install')
@@ -349,7 +348,7 @@ class DebPluginTest extends ProjectSpec {
         postinstallScript.text = "echo Postinstall"
 
         File appleFile = new File(project.buildDir, 'src/apple')
-        Files.createParentDirs(appleFile)
+        FileUtils.forceMkdirParent(appleFile)
         appleFile.text = 'apple'
 
         project.apply plugin: 'nebula.deb'
@@ -1189,7 +1188,7 @@ class DebPluginTest extends ProjectSpec {
         given:
         File nodeModules = new File(projectDir, 'node_modules')
         File file = new File(nodeModules, "memoizee/node_modules/es5-ext/string/#/at.js")
-        Files.createParentDirs(file)
+        FileUtils.forceMkdirParent(file)
         file.text = "dummy"
         project.apply plugin: 'nebula.deb'
         Deb debTask = project.task('buildDeb', type: Deb) {
@@ -1215,7 +1214,7 @@ class DebPluginTest extends ProjectSpec {
         File target = new File(packageDir,"my-script.sh")
         target.createNewFile()
         File file = new File(packageDir,'bin/my-symlink')
-        Files.createParentDirs(file)
+        FileUtils.forceMkdirParent(file)
         java.nio.file.Files.createSymbolicLink(file.toPath(), target.toPath())
 
         when:
@@ -1239,7 +1238,7 @@ class DebPluginTest extends ProjectSpec {
         File target = new File(packageDir,"my-script.sh")
         target.createNewFile()
         File file = new File(packageDir,'bin/my-symlink')
-        Files.createParentDirs(file)
+        FileUtils.forceMkdirParent(file)
         java.nio.file.Files.createSymbolicLink(file.toPath(), target.toPath())
 
         when:
@@ -1263,7 +1262,7 @@ class DebPluginTest extends ProjectSpec {
         given:
         Path target = java.nio.file.Files.createTempFile("file-to-symlink-to", "sh")
         File file = project.file('bin/my-symlink')
-        Files.createParentDirs(file)
+        FileUtils.forceMkdirParent(file)
         java.nio.file.Files.createSymbolicLink(file.toPath(), target)
 
         when:
diff --git a/src/test/groovy/com/netflix/gradle/plugins/deb/Scanner.groovy b/src/test/groovy/com/netflix/gradle/plugins/deb/Scanner.groovy
index 97af0e97..e4027802 100644
--- a/src/test/groovy/com/netflix/gradle/plugins/deb/Scanner.groovy
+++ b/src/test/groovy/com/netflix/gradle/plugins/deb/Scanner.groovy
@@ -1,12 +1,12 @@
 package com.netflix.gradle.plugins.deb
 
-import com.google.common.io.Files
 import org.apache.commons.compress.archivers.ArchiveStreamFactory
 import org.apache.commons.compress.archivers.ar.ArArchiveEntry
 import org.apache.commons.compress.archivers.ar.ArArchiveInputStream
 import org.apache.commons.compress.archivers.tar.TarArchiveEntry
 import org.apache.commons.compress.archivers.tar.TarArchiveInputStream
 import org.apache.commons.compress.compressors.gzip.GzipCompressorInputStream
+import org.apache.commons.io.FileUtils
 import org.apache.commons.io.IOUtils
 
 public class Scanner {
@@ -127,7 +127,7 @@ public class Scanner {
             File outputFile = null
             if(outputDir != null) {
                 outputFile = new File(outputDir, entry.getName()).getCanonicalFile()
-                Files.createParentDirs(outputFile);
+                FileUtils.forceMkdirParent(outputFile);
 
                 if(entry.isFile()) {
                     final OutputStream outputFileStream = new FileOutputStream(outputFile);
diff --git a/src/test/groovy/com/netflix/gradle/plugins/rpm/RpmPluginIntegrationTest.groovy b/src/test/groovy/com/netflix/gradle/plugins/rpm/RpmPluginIntegrationTest.groovy
index e47c0d47..da3d5fde 100644
--- a/src/test/groovy/com/netflix/gradle/plugins/rpm/RpmPluginIntegrationTest.groovy
+++ b/src/test/groovy/com/netflix/gradle/plugins/rpm/RpmPluginIntegrationTest.groovy
@@ -1,6 +1,5 @@
 package com.netflix.gradle.plugins.rpm
 
-import com.google.common.io.Files
 import com.netflix.gradle.plugins.utils.GradleUtils
 import nebula.test.IntegrationSpec
 import nebula.test.dependencies.DependencyGraph
@@ -106,11 +105,11 @@ task buildRpm(type: Rpm) {
     def 'category_on_spec'() {
         given:
         File bananaFile = new File(projectDir, 'test/banana')
-        Files.createParentDirs(bananaFile)
+        FileUtils.forceMkdirParent(bananaFile)
         bananaFile.text = 'banana'
 
         File appleFile = new File(projectDir, 'src/apple')
-        Files.createParentDirs(appleFile)
+        FileUtils.forceMkdirParent(appleFile)
         appleFile.text = 'apple'
 
         buildFile << """
@@ -147,7 +146,7 @@ task buildRpm(type: Rpm) {
     def 'filter_expression'() {
         given:
         File appleFile = new File(projectDir, 'src/apple')
-        Files.createParentDirs(appleFile)
+        FileUtils.forceMkdirParent(appleFile)
         appleFile.text = '{{BASE}}/apple'
 
         buildFile << """
@@ -296,7 +295,7 @@ task buildRpm(type: Rpm) {
         File target = new File(packageDir,"my-script.sh")
         target.createNewFile()
         File file = new File(packageDir,'bin/my-symlink')
-        Files.createParentDirs(file)
+        FileUtils.forceMkdirParent(file)
         java.nio.file.Files.createSymbolicLink(file.toPath(), target.toPath())
         buildFile << """
 apply plugin: 'nebula.rpm'
@@ -325,7 +324,7 @@ task buildRpm(type: Rpm) {
         File target = new File(packageDir,"my-script.sh")
         target.createNewFile()
         File file = new File(packageDir,'bin/my-symlink')
-        Files.createParentDirs(file)
+        FileUtils.forceMkdirParent(file)
         java.nio.file.Files.createSymbolicLink(file.toPath(), target.toPath())
         buildFile << """
 apply plugin: 'nebula.rpm'