Fixed old jar deletion

Signed-off-by: David Kaan <dak@bankdata.dk>

build.gradle

@@ -121,11 +121,15 @@ def integrationTest = tasks.register("integrationTest", Test) {
     }
 }
 
+task clearLibJar(type: Delete) {
+    delete fileTree(dir:'build/libs', include: '**.jar')
+}
+
 task fatJar(type: Jar) {
 //    archiveFileName "${productName}-${productVersion}.jar"
     archiveName "${productName}-${productVersion}.jar"
     description 'Create executable jar'
-    dependsOn integrationTest
+    dependsOn integrationTest, clearLibJar
     manifest {
         attributes 'Main-Class': "${mainClassName}",
                    'Implementation-Title': 'Gradle Quickstart',
@@ -135,10 +139,6 @@ task fatJar(type: Jar) {
     with jar
 }
 
-task clearJar(type: Delete) {
-    delete(files("${project.buildDir}/vs code extension/Cobol-check/bin/"))
-}
-
 task copyJarToBin(type: Copy) {
     description 'Copy executable jar to bin directory prior to distribution'
     dependsOn fatJar
@@ -147,9 +147,13 @@ task copyJarToBin(type: Copy) {
     into 'bin/'
 }
 
+task clearExtensionJar(type: Delete) {
+    delete fileTree(dir:'vs code extension/Cobol-check/bin', include: '**.jar')
+}
+
 task copyJarToExtension(type: Copy) {
     description 'Copy executable jar to bin and VS Code extension bin directories prior to distribution'
-    dependsOn clearJar, fatJar
+    dependsOn clearExtensionJar, fatJar
     from('build/libs/')
     include '**/*.jar'
     into 'vs code extension/Cobol-check/bin/'