diff --git a/unknow-http-jaxrs/src/main/java/unknow/server/http/jaxrs/JaxrsContext.java b/unknow-http-jaxrs/src/main/java/unknow/server/http/jaxrs/JaxrsContext.java
index 8bad7b32..1e5fc1ff 100644
--- a/unknow-http-jaxrs/src/main/java/unknow/server/http/jaxrs/JaxrsContext.java
+++ b/unknow-http-jaxrs/src/main/java/unknow/server/http/jaxrs/JaxrsContext.java
@@ -234,6 +234,7 @@ private static class WebAppExceptionMapping implements ExceptionMapper<WebApplic
 
 		@Override
 		public Response toResponse(WebApplicationException e) {
+			logger.warn("{}", e.getMessage());
 			return e.getResponse();
 		}
 	}
diff --git a/unknow-server-maven/src/main/java/unknow/server/maven/jaxrs/JaxRsServletBuilder.java b/unknow-server-maven/src/main/java/unknow/server/maven/jaxrs/JaxRsServletBuilder.java
index ea885585..9393e710 100644
--- a/unknow-server-maven/src/main/java/unknow/server/maven/jaxrs/JaxRsServletBuilder.java
+++ b/unknow-server-maven/src/main/java/unknow/server/maven/jaxrs/JaxRsServletBuilder.java
@@ -309,12 +309,15 @@ private Statement buildProduces(BlockStmt b, Map<String, JaxrsMapping> produce)
 
 		JaxrsMapping def = produce.remove("*/*");
 		Statement stmt = new ThrowStmt(new ObjectCreationExpr(null, types.getClass(NotAcceptableException.class), Utils.list()));
+
 		if (def != null)
 			stmt = new ExpressionStmt(new MethodCallExpr(def.v + "$call", new NameExpr("req"), new NameExpr("res")));
 		if (produce.isEmpty())
 			return b.addStatement(accept).addStatement(stmt);
 
-		b.addStatement(Utils.assign(types.getClass(MediaType.class), "accept", accept));
+		b.addStatement(Utils.assign(types.getClass(MediaType.class), "accept", accept))
+				.addStatement(new IfStmt(new BinaryExpr(new NameExpr("accept"), new NullLiteralExpr(), BinaryExpr.Operator.EQUALS),
+						new ThrowStmt(new ObjectCreationExpr(null, types.getClass(NotAcceptableException.class), Utils.list())), null));
 
 		List<String> k = new ArrayList<>(produce.keySet());
 		k.sort(MIME);
diff --git a/unknow-server-maven/src/main/java/unknow/server/maven/jaxrs/JaxrsModel.java b/unknow-server-maven/src/main/java/unknow/server/maven/jaxrs/JaxrsModel.java
index d572cede..c75b8a61 100644
--- a/unknow-server-maven/src/main/java/unknow/server/maven/jaxrs/JaxrsModel.java
+++ b/unknow-server-maven/src/main/java/unknow/server/maven/jaxrs/JaxrsModel.java
@@ -259,8 +259,8 @@ public void process(ClassModel clazz) {
 		}
 		if (basePath == null || basePath.isEmpty())
 			basePath = "/";
-		if (basePath.length() > 1 && basePath.endsWith("/"))
-			basePath = basePath.substring(0, basePath.length() - 1);
+		if (!basePath.endsWith("/"))
+			basePath = basePath + "/";
 		if (basePath.charAt(0) != '/')
 			basePath = '/' + basePath;
 		if (baseConsume == null)
@@ -282,8 +282,8 @@ private void process(String defaultMethod, String path, String[] consume, String
 
 		if (a.isPresent()) {
 			String s = a.flatMap(v -> v.value()).map(v -> v.asLiteral()).orElse("");
-			if (s.charAt(0) != '/')
-				path += "/";
+			if (s.charAt(0) == '/')
+				s = s.substring(1);
 			path += s;
 		}
 
diff --git a/unknow-server-maven/src/main/java/unknow/server/maven/jaxrs/OpenApiBuilder.java b/unknow-server-maven/src/main/java/unknow/server/maven/jaxrs/OpenApiBuilder.java
index daa34bf5..19df28a1 100644
--- a/unknow-server-maven/src/main/java/unknow/server/maven/jaxrs/OpenApiBuilder.java
+++ b/unknow-server-maven/src/main/java/unknow/server/maven/jaxrs/OpenApiBuilder.java
@@ -70,9 +70,9 @@ private static Schema<?> getDefault(String n) {
 			case "java.lang.Byte":
 				return new Schema<>().type(INTEGER).minimum(BigDecimal.valueOf(Byte.MIN_VALUE)).maximum(BigDecimal.valueOf(Byte.MAX_VALUE));
 			case "char":
-				return new Schema<>().type(INTEGER).minimum(BigDecimal.valueOf(Character.MIN_VALUE)).maximum(BigDecimal.valueOf(Character.MAX_VALUE)).nullable(false);
+				return new Schema<>().type(STRING).maxLength(1).minLength(1).nullable(false);
 			case "java.lang.Character":
-				return new Schema<>().type(INTEGER).minimum(BigDecimal.valueOf(Character.MIN_VALUE)).maximum(BigDecimal.valueOf(Character.MAX_VALUE));
+				return new Schema<>().type(STRING).maxLength(1).minLength(1);
 			case "short":
 				return new Schema<>().type(INTEGER).minimum(BigDecimal.valueOf(Short.MIN_VALUE)).maximum(BigDecimal.valueOf(Short.MAX_VALUE)).nullable(false);
 			case "java.lang.Short":