diff --git a/classlevel/lambdaexpressions/01_temp/.settings/org.eclipse.buildship.core.prefs b/classlevel/lambdaexpressions/01_temp/.settings/org.eclipse.buildship.core.prefs
index e889521..3f52ec7 100644
--- a/classlevel/lambdaexpressions/01_temp/.settings/org.eclipse.buildship.core.prefs
+++ b/classlevel/lambdaexpressions/01_temp/.settings/org.eclipse.buildship.core.prefs
@@ -1,2 +1,13 @@
+arguments=
+auto.sync=false
+build.scans.enabled=false
+connection.gradle.distribution=GRADLE_DISTRIBUTION(LOCAL_INSTALLATION(c\:\\Gradle))
 connection.project.dir=
 eclipse.preferences.version=1
+gradle.user.home=
+java.home=C\:/Program Files/Java/jdk1.8.0_131
+jvm.arguments=
+offline.mode=false
+override.workspace.settings=true
+show.console.view=true
+show.executions.view=true
diff --git a/classlevel/lambdaexpressions/collections/.classpath b/classlevel/lambdaexpressions/collections/.classpath
new file mode 100644
index 0000000..b79fc0c
--- /dev/null
+++ b/classlevel/lambdaexpressions/collections/.classpath
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" output="bin/main" path="src/main/java">
+		<attributes>
+			<attribute name="gradle_scope" value="main"/>
+			<attribute name="gradle_used_by_scope" value="main,test"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="src" output="bin/test" path="src/test/java">
+		<attributes>
+			<attribute name="gradle_scope" value="test"/>
+			<attribute name="gradle_used_by_scope" value="test"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8/"/>
+	<classpathentry kind="con" path="org.eclipse.buildship.core.gradleclasspathcontainer"/>
+	<classpathentry kind="output" path="bin/default"/>
+</classpath>
diff --git a/classlevel/lambdaexpressions/collections/.settings/org.eclipse.buildship.core.prefs b/classlevel/lambdaexpressions/collections/.settings/org.eclipse.buildship.core.prefs
new file mode 100644
index 0000000..3f52ec7
--- /dev/null
+++ b/classlevel/lambdaexpressions/collections/.settings/org.eclipse.buildship.core.prefs
@@ -0,0 +1,13 @@
+arguments=
+auto.sync=false
+build.scans.enabled=false
+connection.gradle.distribution=GRADLE_DISTRIBUTION(LOCAL_INSTALLATION(c\:\\Gradle))
+connection.project.dir=
+eclipse.preferences.version=1
+gradle.user.home=
+java.home=C\:/Program Files/Java/jdk1.8.0_131
+jvm.arguments=
+offline.mode=false
+override.workspace.settings=true
+show.console.view=true
+show.executions.view=true
diff --git a/datetime/DT_01_currentdate/.settings/org.eclipse.buildship.core.prefs b/datetime/DT_01_currentdate/.settings/org.eclipse.buildship.core.prefs
index 0d916d1..e889521 100644
--- a/datetime/DT_01_currentdate/.settings/org.eclipse.buildship.core.prefs
+++ b/datetime/DT_01_currentdate/.settings/org.eclipse.buildship.core.prefs
@@ -1,13 +1,2 @@
-arguments=
-auto.sync=false
-build.scans.enabled=false
-connection.gradle.distribution=GRADLE_DISTRIBUTION(WRAPPER)
 connection.project.dir=
 eclipse.preferences.version=1
-gradle.user.home=c\:/Gradle
-java.home=
-jvm.arguments=
-offline.mode=false
-override.workspace.settings=true
-show.console.view=true
-show.executions.view=true
diff --git a/playground/tmp/build.gradle.kts b/playground/tmp/build.gradle.kts
new file mode 100644
index 0000000..6f84e46
--- /dev/null
+++ b/playground/tmp/build.gradle.kts
@@ -0,0 +1,14 @@
+plugins {
+    
+}
+
+java {
+    sourceCompatibility = JavaVersion.VERSION_1_8
+    targetCompatibility = JavaVersion.VERSION_1_8
+}
+
+application {
+    mainClassName = ""
+}
+
+version = "1.0.0"
\ No newline at end of file
diff --git a/test/.settings/org.eclipse.buildship.core.prefs b/test/.settings/org.eclipse.buildship.core.prefs
new file mode 100644
index 0000000..e889521
--- /dev/null
+++ b/test/.settings/org.eclipse.buildship.core.prefs
@@ -0,0 +1,2 @@
+connection.project.dir=
+eclipse.preferences.version=1
diff --git a/test/src/test/java/test/LibraryTest.java b/test/src/test/java/test/LibraryTest.java
index a697dd6..6d177a5 100644
--- a/test/src/test/java/test/LibraryTest.java
+++ b/test/src/test/java/test/LibraryTest.java
@@ -8,7 +8,7 @@ import static org.junit.Assert.*;
 
 public class LibraryTest {
     @Test public void testSomeLibraryMethod() {
-        Library classUnderTest = new Library();
+        final Library classUnderTest = new Library();
         assertTrue("someLibraryMethod should return 'true'", classUnderTest.someLibraryMethod());
     }
 }
diff --git a/tools/gradle/simplegradlekotlin/README.md b/tools/gradle/simplegradlekotlin/README.md
index e7ecf2a..ad7d256 100644
--- a/tools/gradle/simplegradlekotlin/README.md
+++ b/tools/gradle/simplegradlekotlin/README.md
@@ -1,12 +1,11 @@
 # About this kata
+
 Simple handwritten Gradle Java project written in Kotlin.
 
-# Problem description
+## Problem description
 
 Provide a gradle project for HelloGradleKotlin class. The gradle project should support compliation and application execution.
 
-
-# Clues
+## Clues
 
 Java and application gradle plugins shall be used
-