add exceptions and builder

src/main/java/it/aboutbits/springboot/toolbox/exception/ClientRuntimeException.java

@@ -0,0 +1,27 @@
+package it.aboutbits.springboot.toolbox.exception;
+
+public class ClientRuntimeException extends RuntimeException {
+    public ClientRuntimeException() {
+    }
+
+    public ClientRuntimeException(String message) {
+        super(message);
+    }
+
+    public ClientRuntimeException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+    public ClientRuntimeException(Throwable cause) {
+        super(cause);
+    }
+
+    public ClientRuntimeException(
+            String message,
+            Throwable cause,
+            boolean enableSuppression,
+            boolean writableStackTrace
+    ) {
+        super(message, cause, enableSuppression, writableStackTrace);
+    }
+}

src/main/java/it/aboutbits/springboot/toolbox/exception/ConstraintViolationExceptionBuilder.java

@@ -0,0 +1,99 @@
+package it.aboutbits.springboot.toolbox.exception;
+
+import jakarta.validation.ConstraintViolation;
+import jakarta.validation.ConstraintViolationException;
+import jakarta.validation.Path;
+import jakarta.validation.metadata.ConstraintDescriptor;
+import lombok.NonNull;
+import org.hibernate.validator.internal.engine.path.PathImpl;
+
+import java.util.HashSet;
+import java.util.Set;
+
+public final class ConstraintViolationExceptionBuilder {
+    private final Set<ConstraintViolation<?>> constraintViolations = new HashSet<>();
+
+    private ConstraintViolationExceptionBuilder() {
+
+    }
+
+    public static ConstraintViolationExceptionBuilder constraintViolation() {
+        return new ConstraintViolationExceptionBuilder();
+    }
+
+    public ConstraintViolationExceptionBuilder causedBy(@NonNull String propertyPath, String message) {
+        var constraintViolation = new CustomConstraintViolation(message, PathImpl.createPathFromString(propertyPath));
+        constraintViolations.add(constraintViolation);
+        return this;
+    }
+
+    public ConstraintViolationExceptionBuilder causedBy(@NonNull ConstraintViolationException e) {
+        constraintViolations.addAll(e.getConstraintViolations());
+        return this;
+    }
+
+    public ConstraintViolationException create() {
+        return new ConstraintViolationException(constraintViolations);
+    }
+
+    public boolean hasCauses() {
+        return !constraintViolations.isEmpty();
+    }
+
+    private record CustomConstraintViolation(String message, Path propertyPath) implements ConstraintViolation<Object> {
+        @Override
+        public String getMessage() {
+            return message;
+        }
+
+        @Override
+        public String getMessageTemplate() {
+            return null;
+        }
+
+        @Override
+        public Object getRootBean() {
+            return null;
+        }
+
+        @Override
+        public Class<Object> getRootBeanClass() {
+            return null;
+        }
+
+        @Override
+        public Object getLeafBean() {
+            return null;
+        }
+
+        @Override
+        public Object[] getExecutableParameters() {
+            return new Object[0];
+        }
+
+        @Override
+        public Object getExecutableReturnValue() {
+            return null;
+        }
+
+        @Override
+        public Path getPropertyPath() {
+            return propertyPath;
+        }
+
+        @Override
+        public Object getInvalidValue() {
+            return null;
+        }
+
+        @Override
+        public ConstraintDescriptor<?> getConstraintDescriptor() {
+            return null;
+        }
+
+        @Override
+        public <U> U unwrap(Class<U> type) {
+            return null;
+        }
+    }
+}

src/main/java/it/aboutbits/springboot/toolbox/exception/ServerRuntimeException.java

@@ -0,0 +1,27 @@
+package it.aboutbits.springboot.toolbox.exception;
+
+public class ServerRuntimeException extends RuntimeException {
+    public ServerRuntimeException() {
+    }
+
+    public ServerRuntimeException(String message) {
+        super(message);
+    }
+
+    public ServerRuntimeException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+    public ServerRuntimeException(Throwable cause) {
+        super(cause);
+    }
+
+    public ServerRuntimeException(
+            String message,
+            Throwable cause,
+            boolean enableSuppression,
+            boolean writableStackTrace
+    ) {
+        super(message, cause, enableSuppression, writableStackTrace);
+    }
+}