в процессе редизайна. не очень нравится как вкладки расположены.

src/Visual_DVM_2021/UI/Interface/CredentialsWindow.java

@@ -0,0 +1,7 @@
+package Visual_DVM_2021.UI.Interface;
+import javax.swing.*;
+public interface CredentialsWindow {
+    JPanel getContent();
+    void ShowAll();
+    void RestoreLastCredentials();
+}

src/Visual_DVM_2021/UI/Interface/TestingWindow.java

@@ -1,7 +1,6 @@
 package Visual_DVM_2021.UI.Interface;
 public interface TestingWindow extends VisualizerForm {
     void ShowAll();
-    void RestoreLastCredentials();
     void ShowProjectMaxCompilationTime();
     void ShowProjectMaxRunTime();
     //-
@@ -16,7 +15,6 @@ public interface TestingWindow extends VisualizerForm {
         ShowProjectMaxCompilationTime();
         ShowProjectMaxRunTime();
     }
-    void FocusCredentials();
     void ShowProject();
     void ShowNoProject();
     //-
@@ -37,10 +35,6 @@ public interface TestingWindow extends VisualizerForm {
     void setDeveloperRights();
     void FocusScenarios();
     //---------------------------------------->>>
-    void ShowCurrentMachine();
-    void ShowNoCurrentMachine();
-    //---------------------------------------->>>
-    void ShowCredentials();
     void FocusSapforTasksPackages();
     void ShowCurrentSapforTasksPackage();
     void ShowNoSapforTasksPackage();

src/Visual_DVM_2021/UI/Interface/TestsWindow.java

@@ -0,0 +1,4 @@
+package Visual_DVM_2021.UI.Interface;
+public interface TestsWindow {
+    void ShowAll();
+}