[GR-70999] Fix: modifiers field in reflection target classes should be final.

PullRequest: graal/22473

Author: DSouzaM

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/reflect/target/Target_java_lang_reflect_Constructor.java

@@ -61,7 +61,7 @@ public final class Target_java_lang_reflect_Constructor {
     @Alias @RecomputeFieldValue(kind = Kind.Custom, declClass = ParameterAnnotationsComputer.class)//
     byte[] parameterAnnotations;
 
-    @Alias //
+    @Alias @RecomputeFieldValue(isFinal = true, kind = Kind.None) //
     public int modifiers;
 
     /**

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/reflect/target/Target_java_lang_reflect_Field.java

@@ -86,7 +86,7 @@ public final class Target_java_lang_reflect_Field {
     @Alias //
     boolean override;
 
-    @Alias //
+    @Alias @RecomputeFieldValue(isFinal = true, kind = Kind.None) //
     public int modifiers;
 
     @Alias //

substratevm/src/com.oracle.svm.core/src/com/oracle/svm/core/reflect/target/Target_java_lang_reflect_Method.java

@@ -102,7 +102,7 @@ public final class Target_java_lang_reflect_Method {
     @Alias //
     private Class<?>[] exceptionTypes;
 
-    @Alias //
+    @Alias @RecomputeFieldValue(isFinal = true, kind = Kind.None) //
     public int modifiers;
 
     @Alias //