made loadFromJson non-static

src/main/java/Vault.java

@@ -1,3 +1,23 @@
 public class Vault implements VaultInterface {
 
+    public void configure(){
+
+    }
+
+    public void addCredential(){
+
+    }
+
+    public void showCredential(){
+
+    }
+
+    public void getAsJson(){
+
+    }
+
+    public void loadFromJson(){
+
+    }
+
 }

src/main/java/VaultInterface.java

@@ -2,4 +2,10 @@
 
 public interface VaultInterface {
 
+    public void configure();
+    public void addCredential();
+    public void showCredential();
+    public void getAsJson();
+    public void loadFromJson();
+
 }

src/test/java/VaultTest.java

@@ -9,4 +9,32 @@ import java.util.NoSuchElementException;
 
 public class VaultTest {
 
+    static Vault vlt;
+
+    @BeforeAll
+    static void init() {
+        vlt = new Vault();
+    }
+
+   /* @BeforeEach
+    void reset() {
+        pm.outputStream = System.out;
+        pm.inputStream = System.in;
+    }*/
+
+    @Test
+    void configure() {vlt.configure();}
+
+    @Test
+    void addCredential() {vlt.addCredential();}
+
+    @Test
+    void showCredential() {vlt.showCredential();}
+
+    @Test
+    void getAsJson() {vlt.getAsJson();}
+
+    @Test
+    void loadFromJson() {vlt.loadFromJson();}
+
 }