fix(gradle): Avoid crash for missing managerData

lib/manager/gradle/shallow/extract.ts

@@ -1,9 +1,11 @@
+import { DeploymentStatus } from 'azure-devops-node-api/interfaces/ReleaseInterfaces';
 import * as upath from 'upath';
 import {
   id as datasource,
   defaultRegistryUrls,
 } from '../../../datasource/maven';
 import { logger } from '../../../logger';
+import { SkipReason } from '../../../types';
 import { readLocalFile } from '../../../util/fs';
 import type {
   ExtractConfig,
@@ -98,20 +100,27 @@ export async function extractAllPackageFiles(
   }
 
   elevateFileReplacePositionField(extractedDeps).forEach((dep) => {
-    const key = dep.managerData.packageFile;
-    const pkgFile: PackageFile = packageFilesByName[key];
-    const { deps } = pkgFile;
-    deps.push({
-      ...dep,
-      registryUrls: [
-        ...new Set([
-          ...defaultRegistryUrls,
-          ...(dep.registryUrls || []),
-          ...registryUrls,
-        ]),
-      ],
-    });
-    packageFilesByName[key] = pkgFile;
+    const key = dep.managerData?.packageFile;
+    if (key) {
+      const pkgFile: PackageFile = packageFilesByName[key];
+      const { deps } = pkgFile;
+      deps.push({
+        ...dep,
+        registryUrls: [
+          ...new Set([
+            ...defaultRegistryUrls,
+            ...(dep.registryUrls || []),
+            ...registryUrls,
+          ]),
+        ],
+      });
+      packageFilesByName[key] = pkgFile;
+    } /* istanbul ignore next */ else {
+      logger.warn(
+        { dep },
+        `Failed to process Gradle dependency: ${dep.lookupName}`
+      );
+    }
   });
 
   return Object.values(packageFilesByName);

lib/manager/gradle/shallow/parser.ts

@@ -24,6 +24,7 @@ import {
   isDependencyString,
   parseDependencyString,
 } from './utils';
+import { SkipReason } from '../../../types';
 
 function matchTokens(
   tokens: Token[],