Remove dep to java.desktop / java.beans via inlining

Author: cowtowncoder

hibernate5-jakarta/src/main/java/tools/jackson/datatype/hibernate5/jakarta/Hibernate5JProxySerializer.java

@@ -1,6 +1,5 @@
 package tools.jackson.datatype.hibernate5.jakarta;
 
-import java.beans.Introspector;
 import java.lang.reflect.Field;
 import java.lang.reflect.Method;
 import java.util.HashMap;
@@ -289,13 +288,27 @@ static String getIdentifierPropertyName(LazyInitializer init) {
                 }
                 String name = idGetter.getName();
                 if (name.startsWith("get")) {
-                    name = Introspector.decapitalize(name.substring(3));
+                    name = _decapitalize(name.substring(3));
                 }
                 return name;
             } catch (IllegalAccessException e) {
                 throw new RuntimeException(e);
             }
         }
+
+        // Same as `java.beans.Introspector.decapitalize()`:
+        private static String _decapitalize(String name) {
+            if (name == null || name.length() == 0) {
+                return name;
+            }
+            if (name.length() > 1 && Character.isUpperCase(name.charAt(1)) &&
+                    Character.isUpperCase(name.charAt(0))){
+                return name;
+            }
+            char[] chars = name.toCharArray();
+            chars[0] = Character.toLowerCase(chars[0]);
+            return new String(chars);
+        }
     }
 
     /**

hibernate6/src/main/java/tools/jackson/datatype/hibernate6/Hibernate6ProxySerializer.java

@@ -1,6 +1,5 @@
 package tools.jackson.datatype.hibernate6;
 
-import java.beans.Introspector;
 import java.lang.reflect.Field;
 import java.lang.reflect.Method;
 import java.util.HashMap;
@@ -290,13 +289,27 @@ static String getIdentifierPropertyName(LazyInitializer init) {
                 }
                 String name = idGetter.getName();
                 if (name.startsWith("get")) {
-                    name = Introspector.decapitalize(name.substring(3));
+                    name = _decapitalize(name.substring(3));
                 }
                 return name;
             } catch (IllegalAccessException e) {
                 throw new RuntimeException(e);
             }
         }
+
+        // Same as `java.beans.Introspector.decapitalize()`:
+        private static String _decapitalize(String name) {
+            if (name == null || name.length() == 0) {
+                return name;
+            }
+            if (name.length() > 1 && Character.isUpperCase(name.charAt(1)) &&
+                    Character.isUpperCase(name.charAt(0))){
+                return name;
+            }
+            char[] chars = name.toCharArray();
+            chars[0] = Character.toLowerCase(chars[0]);
+            return new String(chars);
+        }
     }
 
     protected static class ProxySessionReader {

hibernate7/src/main/java/tools/jackson/datatype/hibernate7/Hibernate7ProxySerializer.java

@@ -1,6 +1,5 @@
 package tools.jackson.datatype.hibernate7;
 
-import java.beans.Introspector;
 import java.lang.reflect.Field;
 import java.lang.reflect.Method;
 import java.util.HashMap;
@@ -280,12 +279,26 @@ static String getIdentifierPropertyName(LazyInitializer init) {
                 }
                 String name = idGetter.getName();
                 if (name.startsWith("get")) {
-                    name = Introspector.decapitalize(name.substring(3));
+                    name = _decapitalize(name.substring(3));
                 }
                 return name;
             } catch (IllegalAccessException e) {
                 throw new RuntimeException(e);
             }
         }
+
+        // Same as `java.beans.Introspector.decapitalize()`:
+        private static String _decapitalize(String name) {
+            if (name == null || name.length() == 0) {
+                return name;
+            }
+            if (name.length() > 1 && Character.isUpperCase(name.charAt(1)) &&
+                    Character.isUpperCase(name.charAt(0))){
+                return name;
+            }
+            char[] chars = name.toCharArray();
+            chars[0] = Character.toLowerCase(chars[0]);
+            return new String(chars);
+        }
     }
 }