CAPAUT-471 Refactor error handling to avoid broken builds

gradle/build-mavenpublish.gradle

@@ -21,34 +21,34 @@ project.ext {
     mavenRepositoryUrl = ( project.hasProperty('MAVEN_PUBLISH_REPOSITORY_URL') ? MAVEN_PUBLISH_REPOSITORY_URL : null )
 }
 
-// Fail fast
-if ( mavenAccessToken == null || mavenRepositoryUrl == null ) {
-    throw new GradleScriptException("Missing required properties: MAVEN_PUBLISH_ACCESS_TOKEN and MAVEN_PUBLISH_REPOSITORY_URL", null)
-}
-
 // Apply plugins
 apply plugin: 'maven-publish'
 
-// Configure maven publish
-publishing {
-	publications {
-		bootJava(MavenPublication) {
-			artifact tasks.named("bootJar")
-		}
-	}
-	repositories {
-		maven {
-            name = "git.captica.de"
-			url uri(mavenRepositoryUrl)
-
-            credentials(HttpHeaderCredentials) {
-                name = "Authorization"
-                value = "token ${mavenAccessToken}"
-            }
-
-            authentication {
-                header(HttpHeaderAuthentication)
-            }
-		}
-	}
+if ( ext.mavenAccessToken == null || ext.mavenRepositoryUrl == null ) {
+    logger.error("ERROR: Maven publish not possible! Missing required properties: MAVEN_PUBLISH_ACCESS_TOKEN and MAVEN_PUBLISH_REPOSITORY_URL")
+}
+else {
+    // Configure maven publish
+    publishing {
+        publications {
+            bootJava(MavenPublication) {
+                artifact tasks.named("bootJar")
+            }
+        }
+        repositories {
+            maven {
+                name = "git.captica.de"
+                url uri(mavenRepositoryUrl)
+
+                credentials(HttpHeaderCredentials) {
+                    name = "Authorization"
+                    value = "token ${mavenAccessToken}"
+                }
+
+                authentication {
+                    header(HttpHeaderAuthentication)
+                }
+            }
+        }
+    }
 }