BAEL-4233: Why doesn't a missing annotation cause a ClassNotFoundException at runtime? (eugenp#11024)

alimate · web-flow · commit 4f9f9e229fb7 · 2021-07-18T10:43:45.000-05:00
diff --git a/core-java-modules/core-java-annotations/src/main/java/com/baeldung/missingannotation/A.java b/core-java-modules/core-java-annotations/src/main/java/com/baeldung/missingannotation/A.java
@@ -0,0 +1,8 @@
+package com.baeldung.missingannotation;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+@Retention(RetentionPolicy.RUNTIME)
+public @interface A {
+}
diff --git a/core-java-modules/core-java-annotations/src/main/java/com/baeldung/missingannotation/B.java b/core-java-modules/core-java-annotations/src/main/java/com/baeldung/missingannotation/B.java
@@ -0,0 +1,10 @@
+package com.baeldung.missingannotation;
+
+@A
+@C(D.class)
+public class B {
+
+    public static void main(String[] args) {
+        System.out.println("It worked");
+    }
+}
diff --git a/core-java-modules/core-java-annotations/src/main/java/com/baeldung/missingannotation/C.java b/core-java-modules/core-java-annotations/src/main/java/com/baeldung/missingannotation/C.java
@@ -0,0 +1,9 @@
+package com.baeldung.missingannotation;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+@Retention(RetentionPolicy.RUNTIME)
+public @interface C {
+    Class<?> value();
+}
diff --git a/core-java-modules/core-java-annotations/src/main/java/com/baeldung/missingannotation/D.java b/core-java-modules/core-java-annotations/src/main/java/com/baeldung/missingannotation/D.java
@@ -0,0 +1,4 @@
+package com.baeldung.missingannotation;
+
+public class D {
+}

-Original file line number
+Diff line change
@@ @@ -0,0 +1,4 @@ @@
 +package com.baeldung.missingannotation;
++
 +public class D {
 +}