diff --git a/src/main/java/org/web3j/console/project/ProjectWriter.java b/src/main/java/org/web3j/console/project/ProjectWriter.java
index 1a782a5..d85311d 100644
--- a/src/main/java/org/web3j/console/project/ProjectWriter.java
+++ b/src/main/java/org/web3j/console/project/ProjectWriter.java
@@ -14,10 +14,10 @@
 
 import java.io.File;
 import java.io.IOException;
-import java.io.InputStream;
 import java.nio.file.Files;
 import java.nio.file.Paths;
 import java.nio.file.StandardCopyOption;
+import java.util.Objects;
 
 class ProjectWriter {
 
@@ -31,9 +31,13 @@ private byte[] getBytes(final String file) {
         return file.getBytes();
     }
 
-    final void copyResourceFile(final InputStream file, final String destinationPath)
+    final void copyResourceFile(final String file, final String destinationPath)
             throws IOException {
-        Files.copy(file, Paths.get(destinationPath), StandardCopyOption.REPLACE_EXISTING);
+
+        Files.copy(
+                Objects.requireNonNull(getClass().getClassLoader().getResourceAsStream(file)),
+                Paths.get(destinationPath),
+                StandardCopyOption.REPLACE_EXISTING);
     }
 
     final void importSolidityProject(final File file, final String destination) throws IOException {
diff --git a/src/main/java/org/web3j/console/project/TemplateProvider.java b/src/main/java/org/web3j/console/project/TemplateProvider.java
index 1ae79da..c690a6b 100644
--- a/src/main/java/org/web3j/console/project/TemplateProvider.java
+++ b/src/main/java/org/web3j/console/project/TemplateProvider.java
@@ -26,7 +26,7 @@ public class TemplateProvider {
     private final String gradlewWrapperSettings;
     private final String gradlewBatScript;
     private final String gradlewScript;
-    private final InputStream gradlewJar;
+    private final String gradlewJar;
 
     private TemplateProvider(
             final String mainJavaClass,
@@ -36,7 +36,7 @@ private TemplateProvider(
             final String gradlewWrapperSettings,
             final String gradlewBatScript,
             final String gradlewScript,
-            final InputStream gradlewJar) {
+            final String gradlewJar) {
         this.mainJavaClass = mainJavaClass;
         this.solidityProject = solidityProject;
         this.gradleBuild = gradleBuild;
@@ -75,7 +75,7 @@ String getGradlewScript() {
         return gradlewScript;
     }
 
-    InputStream getGradlewJar() {
+    String getGradlewJar() {
         return gradlewJar;
     }
 
@@ -87,7 +87,7 @@ public static class Builder {
         private String gradlewBatScript;
         private String gradlewScript;
         private String solidityProject;
-        private InputStream gradlewJar;
+        private String gradlewWraperJar;
         private Function<String, String> packageNameReplacement = s -> s;
         private Function<String, String> projectNameReplacement = s -> s;
 
@@ -133,7 +133,7 @@ public Builder loadGradlewScript(final String name) throws IOException {
         }
 
         public Builder loadGradleJar(final String name) {
-            this.gradlewJar = getClass().getClassLoader().getResourceAsStream(name);
+            this.gradlewWraperJar = name;
             return this;
         }
 
@@ -158,7 +158,7 @@ TemplateProvider build() {
                     gradlewWrapperSettings,
                     gradlewBatScript,
                     gradlewScript,
-                    gradlewJar);
+                    gradlewWraperJar);
         }
 
         private String readFile(final String name) throws IOException {