[*] Logging via SLF4J

build.gradle.kts

@@ -1,13 +1,18 @@
 plugins {
     id("java")
+    id("maven-publish")
 }
 
-group = "de.siphalor"
+group = "de.siphalor.tweed5"
-version = "1.0-SNAPSHOT"
+version = properties["version"]!!
 
 allprojects {
     apply(plugin = "java")
     apply(plugin = "java-library")
+    apply(plugin = "maven-publish")
+
+    group = rootProject.group
+    version = properties["version"]!!
 
     java {
         sourceCompatibility = JavaVersion.VERSION_1_8
@@ -18,6 +23,11 @@ allprojects {
         mavenCentral()
     }
 
+    val localRuntimeOnly = configurations.create("localRuntimeOnly")
+    sourceSets.main.get().runtimeClasspath += localRuntimeOnly
+
+    sourceSets.test.get().runtimeClasspath += sourceSets.main.get().runtimeClasspath
+
         dependencies {
         val lombok = "org.projectlombok:lombok:${properties["lombok.version"]}"
         compileOnly(lombok)
@@ -34,6 +44,9 @@ allprojects {
 
         implementation("org.jetbrains:annotations:${properties["jetbrains_annotations.version"]}")
 
+        implementation("org.slf4j:slf4j-api:${properties["slf4j.version"]}")
+        localRuntimeOnly("org.slf4j:slf4j-simple:${properties["slf4j.version"]}")
+
         testImplementation(platform("org.junit:junit-bom:${properties["junit.version"]}"))
         testImplementation("org.junit.jupiter:junit-jupiter")
         testImplementation("org.mockito:mockito-core:${properties["mockito.version"]}")
@@ -48,4 +61,16 @@ allprojects {
             "junit.jupiter.execution.timeout.thread.mode.default" to "SEPARATE_THREAD",
         )
     }
+
+    publishing {
+        publications {
+            create<MavenPublication>("maven") {
+                groupId = project.group.toString()
+                artifactId = project.name
+                version = project.version.toString()
+
+                from(components["java"])
+            }
+        }
+    }
 }

gradle.properties

@@ -1,7 +1,10 @@
+version = 0.1.0
+
 asm.version = 9.7
 jetbrains_annotations.version = 26.0.1
 lombok.version = 1.18.34
 auto_service.version = 1.1.1
+slf4j.version = 2.0.16
 
 junit.version = 5.11.2
 mockito.version = 5.14.2

tweed5-weaver-pojo/src/main/java/de/siphalor/tweed5/weaver/pojo/impl/weaving/PojoClassIntrospector.java

@@ -4,6 +4,7 @@ import lombok.AccessLevel;
 import lombok.Builder;
 import lombok.RequiredArgsConstructor;
 import lombok.Value;
+import lombok.extern.slf4j.Slf4j;
 import org.jetbrains.annotations.Nullable;
 
 import java.lang.invoke.MethodHandle;
@@ -16,6 +17,7 @@ import java.util.Collections;
 import java.util.HashMap;
 import java.util.Map;
 
+@Slf4j
 @RequiredArgsConstructor(access = AccessLevel.PRIVATE)
 public class PojoClassIntrospector {
 	private final Class<?> clazz;
@@ -67,11 +69,23 @@ public class PojoClassIntrospector {
 					Property property = introspectProperty(field);
 					properties.put(property.field.getName(), property);
 				} else {
-					// TODO: logging
+					Property existingProperty = properties.get(field.getName());
+					log.error(
+							"Duplicate property \"{}\" detected in hierarchy of {} in classes: {} and {}",
+							field.getName(),
+							clazz.getName(),
+							existingProperty.field().getDeclaringClass().getName(),
+							targetClass.getName()
+					);
 				}
 			}
 		} catch (Exception e) {
-			// TODO: logging
+			log.error(
+					"Got unexpected error introspecting the properties of class {} (in hierarchy of {})",
+					targetClass.getName(),
+					clazz.getName(),
+					e
+			);
 		}
 	}
 
@@ -178,7 +192,13 @@ public class PojoClassIntrospector {
 		} catch (NoSuchMethodException e) {
 			return null;
 		} catch (IllegalAccessException e) {
-			// TODO: logging
+			log.warn(
+					"Failed to access method \"{}\" of class {} in hierarchy of {}",
+					methodDescriptor,
+					targetClass.getName(),
+					clazz.getName(),
+					e
+			);
 			return null;
 		}
 	}
@@ -190,7 +210,13 @@ public class PojoClassIntrospector {
 		} catch (NoSuchFieldException e) {
 			return null;
 		} catch (IllegalAccessException e) {
-			// TODO: logging
+			log.warn(
+					"Failed to access getter for field \"{}\" of class {} in hierarchy of {}",
+					field.getName(),
+					field.getDeclaringClass().getName(),
+					clazz.getName(),
+					e
+			);
 			return null;
 		}
 	}
@@ -202,7 +228,13 @@ public class PojoClassIntrospector {
 		} catch (NoSuchFieldException e) {
 			return null;
 		} catch (IllegalAccessException e) {
-			// TODO: logging
+			log.warn(
+					"Failed to access setter for field \"{}\" of class {} in hierarchy of {}",
+					field.getName(),
+					field.getDeclaringClass().getName(),
+					clazz.getName(),
+					e
+			);
 			return null;
 		}
 	}