Add a cache to LaunchedURLClassloader to improve startup performance

This commit adds a ClassLoaderCache to LaunchedURLClassLoader to improve startup performance. URLClassLoader shows awful performance when find Classes/Resources which do not exist.
spring-projects · zjulbj · Mar 1, 2022 · Mar 1, 2022 · Mar 1, 2022 · Mar 1, 2022
commit d3a871738ad69d336d5a1d81f52402d7bae72c4b
diff --git a/...ls/spring-boot-loader/src/main/java/org/springframework/boot/loader/ClassLoaderCache.java b/...ls/spring-boot-loader/src/main/java/org/springframework/boot/loader/ClassLoaderCache.java
@@ -117,4 +117,5 @@ protected boolean removeEldestEntry(Map.Entry<K, V> eldest) {
 			}
 		});
 	}
+
 }
-Original file line number
+Diff line change
@@ Expand Up @@
     			}
     		});
     	}
     }