command start and end injector

dist/index.js

@@ -3244,7 +3244,10 @@ class ImageEnvironmentFactory {
         const environmentVariables = ImageEnvironmentFactory.getEnvironmentVariables(parameters);
         let string = '';
         for (const p of environmentVariables) {
-            string += `--env ${p.name}="${p.value}" \
+            if (p.value === '' || p.value === undefined) {
+                continue;
+            }
+            string += `--env ${p.name}="${p.value}" \
       `;
         }
         return string;

src/model/image-environment-factory.ts

@@ -8,6 +8,9 @@ class ImageEnvironmentFactory {
     const environmentVariables = ImageEnvironmentFactory.getEnvironmentVariables(parameters);
     let string = '';
     for (const p of environmentVariables) {
+      if (p.value === '' || p.value === undefined) {
+        continue;
+      }
       string += `--env ${p.name}="${p.value}" \
       `;
     }