I have a spring boot application with version 2.7.3.
I have a util class, that creates a new Object mapper and registers the Javatimemodule class to that.
So in the test case, I try to verify that the registered module is added to the mapper.
This was completely working fine with my previous spring version 2.3. However when upgrading I see this strange issue.
Can some one help here ?
static {
mapper = new ObjectMapper();
mapper.registerModule(new JavaTimeModule());
mapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);
}
public static ObjectMapper getObjectMapper() {
return mapper;
}
#Test
public void returnsObjectMapper() {
ObjectMapper objectMapper = Util.getObjectMapper();
Set<Object> registeredModuleIds = objectMapper.getRegisteredModuleIds();
assertThat(registeredModuleIds).contains(JavaTimeModule.class.getName());
}
So when I run the test case with the higher version, I get the following error
java.lang.AssertionError: Expecting UnmodifiableSet:
["jackson-datatype-jsr310"] to contain:
["com.fasterxml.jackson.datatype.jsr310.JavaTimeModule"] but could not
find the following element(s):
["com.fasterxml.jackson.datatype.jsr310.JavaTimeModule"]
Judging by the log, ObjectMapper actually has a required module registered in your test, but it's called "jackson-datatype-jsr310" instead of the class name.
AFAIK spring-boot of 2.7.3 uses Jackson version 2.13.3, where JavaTimeModule's default constructor calls super constructor (of SimpleModule class) with a name "jackson-datatype-jsr310", and this name is returned by overridden SimpleModule's getTypeId() method, which is stored then in the ObjectMapper's _registeredModuleIds map.
This name is picked from the com.fasterxml.jackson.datatype.jsr310.PackageVersion static VERSION variable, so if you want your test to pass try something like this:
#Test
public void returnsObjectMapper() {
ObjectMapper objectMapper = Util.getObjectMapper();
String javaTimeModuleName = PackageVersion.VERSION.getArtifactId();
Set<Object> registeredModuleIds = objectMapper.getRegisteredModuleIds();
assertThat(registeredModuleIds).contains(javaTimeModuleName);
}
Mind that exactly com.fasterxml.jackson.datatype.jsr310.PackageVersion must be imported, because every Jackson package has this class.
I find the same question in there but didn`t find a useful answer, so I support more details. My code is the following.
#Target(ElementType.TYPE)
#Retention(RetentionPolicy.RUNTIME)
public #interface DS {
String value();
}
public class AnnotationAspect {
#Around("#target(com.yh.application.DS)")
public Object around(ProceedingJoinPoint joinPoint) throws Throwable {
String dsName = getDataSourceAnnotation(joinPoint).value();
System.out.println("enter in aspect:" + dsName);
return joinPoint.proceed();
}
here is a demo,
just run the application you can see the error stack trace
Unable to proxy interface-implementing method
[public final void org.springframework.boot.web.servlet.RegistrationBean.onStartup
(javax.servlet.ServletContext) throws javax.servlet.ServletException]
because it is marked as final: Consider using interface-based JDK proxies instead!
seems I need to change the aop proxy type to JDK, but when I did this, another error is prompted.
The bean 'dispatcherServlet' could not be injected as a 'org.springframework.web.servlet.DispatcherServlet' because it is a JDK dynamic proxy
Does anyone help me? thank you!
R.G's solution is correct, you ought to limit the pointcut scope. BTW, looking at your aspect code, I noticed this contrived way of getting the annotation value:
private DS getDataSourceAnnotation(ProceedingJoinPoint joinPoint) {
Class<?> targetClass = joinPoint.getTarget().getClass();
DS dsAnnotation = targetClass.getAnnotation(DS.class);
if (Objects.nonNull(dsAnnotation)) {
return dsAnnotation;
}
else {
MethodSignature methodSignature = (MethodSignature) joinPoint.getSignature();
return methodSignature.getMethod().getAnnotation(DS.class);
}
}
I suggest you just bind the annotation to an advice method parameter like this:
package com.yh.application;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.springframework.stereotype.Component;
#Aspect
#Component
public class AnnotationAspect {
#Before("#target(ds) && within(com.yh..*)")
public void interceptDS(JoinPoint joinPoint, DS ds) {
System.out.println(joinPoint + " -> DS value = " + ds.value());
}
}
Update:
I forgot to explain why you were getting the error in the first place: Pointcuts like this(), target(), #this(), #target() can only be determined dynamically during runtime because they access active object instances. Hence, all possible Spring components (also internal ones) are being aspect-woven, which is also the reason why the workaround to limit the aspect scope by using statically evaluated pointcut designators like within() help you avoid the problem.
But actually, using a statically evaluated pointcut designator in the first place, if it is a viable alternative, is the best idea. It is also faster than weaving the world, creating dozens or hundreds of proxies, and then to dynamically evaluate pointcuts over and over again. Luckily, in this case such an alternative exists: #within().
#Aspect
#Component
public class AnnotationAspect {
#Before("#within(ds)")
public void interceptDS(JoinPoint joinPoint, DS ds) {
System.out.println(joinPoint + " -> DS value = " + ds.value());
}
}
I am using Spring Boot 2.3.1 and want to publish records that could not be deserialized using the DeadLetterPublishingRecoverer.
Everything looks fine, except that the original payload isn't written to the DLT topic. Instead I see it Base64 encoded.
In a different posting I have read that this is caused by the JsonSerializer that is used in the Kafkatemplate, so I tried using a different template. But now I get an SerializationException:
org.apache.kafka.common.errors.SerializationException: Can't convert value of class [B to class org.apache.kafka.common.serialization.BytesSerializer specified in value.serializer
A similar exception occurs when using the StringSerializer.
My code looks like this:
#Autowired
private KafkaProperties kafkaProperties;
private ProducerFactory<String, String> pf() {
return new DefaultKafkaProducerFactory<>(kafkaProperties.buildProducerProperties());
}
private KafkaTemplate<String, String> stringTemplate() {
return new KafkaTemplate<>(pf(), Collections.singletonMap(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, StringSerializer.class));
}
#Bean
public SeekToCurrentErrorHandler errorHandler() {
SeekToCurrentErrorHandler eh = new SeekToCurrentErrorHandler(new DeadLetterPublishingRecoverer(stringTemplate()));
eh.setLogLevel(Level.WARN);
return eh;
}
Found it just 5 minutes later.
I had to use the ByteArraySerializer instead.
I am trying to get a Spring Cloud Netflix Feign client to fetch a bit of JSON over HTTP and convert it to an object. I keep getting this error instead:
org.springframework.web.client.RestClientException: Could not extract response: no suitable HttpMessageConverter found for response type [class io.urig.checkout.Book] and content type [application/json;charset=UTF-8]
Here's the bit of JSON returned from the remote service:
{
"id": 1,
"title": "Moby Dick",
"author": "Herman Melville"
}
Here's the corresponding class I'm trying to deserialize to:
package io.urig.checkout;
public class Book {
private long id;
private String title;
private String author;
public Book() {}
public Book(long id, String title, String author) {
super();
this.id = id;
this.title = title;
this.author = author;
}
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getAuthor() {
return author;
}
public void setAuthor(String author) {
this.author = author;
}
}
And here's my Feign client:
package io.urig.checkout;
import java.util.Optional;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import io.urig.checkout.Book;
#FeignClient(name="inventory", url="http://localhost:8080/")
public interface InventoryClient {
#RequestMapping(method = RequestMethod.GET, value = "books/{bookId}")
public Optional<Book> getBookById(#PathVariable(value="bookId") Long bookId);
}
What do I need to do to get this to work?
I don't know Feign, but when I've had "no suitable HttpMessageConverter found..." errors in the past, it's because the content type has not been registered. Perhaps you need to add this to the RequestMapping:
consumes = "application/json"
All I can suggest is to try to confirm if Feign configuration has MappingJackson2HttpMessageConverter registered as a converter for Book. Not sure if this is something that should work out of the box with Feign, or if you have to do it manually. I see an example on Feign's GitHub that has:
GitHub github = Feign.builder()
.encoder(new JacksonEncoder())
.decoder(new JacksonDecoder())
.target(GitHub.class, "https://api.github.com");
Have you created configuration using Feign.builder() or some equivalent configuration files?
You will need to ensure that you have at least one JSON library on your classpath. Feign supports both GSON and Jackson and Spring Cloud OpenFeign will autoconfigure the SpringEncoder and SpringDecoder instances with the appropriate MessageConverter if they are found on your classpath. Ensure that you have at least one of the following in your pom.xml or build.gradle
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.4</version>
</dependency>
or
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.8.2</version>
</dependency>
Once they are found, Spring will register the appropriate MessageConverter
I think your problem is the response type. Try converting it to Book from Optional. If you want to return an Optional than you should provide your custom converter.
Sorry, for too late answer.
Had the same problem.
Just add two parameters to your #RequestMapping -
consumes = "application/json", produces = "application/json"
In your code this will look like this -
package io.urig.checkout;
import java.util.Optional;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import io.urig.checkout.Book;
#FeignClient(name="inventory", url="http://localhost:8080/")
public interface InventoryClient {
#RequestMapping(method = RequestMethod.GET, value = "books/{bookId}", consumes = "application/json", produces = "application/json")
public Optional<Book> getBookById(#PathVariable(value="bookId") Long bookId);
}
Thanks to all who tried to help!
As it turned out my issue was a defective Maven dependency, probably corrupted during download or installation. Having entirely deleted the .m2/repository folder on my machine and then updating Maven dependencies for the project the issue is now gone.
I am late here but I would like to add one more point. In my case I observed Spring Feign client returns this exception when you specified the return type as a specific model/entity class and that entity is not found.
You should check the response for the another service which you are calling and see what response it returns in case the entity is not found, or in case an exception is thrown.
So in case an entity is not found or any exception is thrown and that response does not match to what you have specified in return type then this exception is thrown in the client service.
I am using Jersey based restful Service implementation strategy to build a service which will be used to upload files.
My service class name is : UploadFileService.java (See Code below)
package com.jerser.service;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import javax.ws.rs.Consumes;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import com.sun.jersey.core.header.FormDataContentDisposition;
import com.sun.jersey.multipart.FormDataParam;
#Path("/fileUpload")
public class UploadFileService {
#POST
#Path("/upload")
#Consumes(MediaType.MULTIPART_FORM_DATA)
public Response uploadFile(
#FormDataParam("file") InputStream uploadedInputStream,
#FormDataParam("file") FormDataContentDisposition fileDetail) {
String uploadedFileLocation = "d://uploaded/" + fileDetail.getFileName();
// save it
writeToFile(uploadedInputStream, uploadedFileLocation);
String output = "File uploaded to : " + uploadedFileLocation;
return Response.status(200).entity(output).build();
}
// save uploaded file to new location
private void writeToFile(InputStream uploadedInputStream,
String uploadedFileLocation) {
try {
OutputStream out = new FileOutputStream(new File(
uploadedFileLocation));
int read = 0;
byte[] bytes = new byte[1024];
out = new FileOutputStream(new File(uploadedFileLocation));
while ((read = uploadedInputStream.read(bytes)) != -1) {
out.write(bytes, 0, read);
}
out.flush();
out.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
These are the JAR files I have inside my lib:
aopalliance-repackaged-2.4.0-b10.jar
asm-debug-all-5.0.2.jar
hk2-api-2.4.0-b10.jar
hk2-locator-2.4.0-b10.jar
hk2-utils-2.4.0-b10.jar
javassist-3.18.1-GA.jar
javax.annotation-api-1.2.jar
javax.inject-2.4.0-b10.jar
javax.servlet-api-3.0.1.jar
javax.ws.rs-api-2.0.1.jar
jaxb-api-2.2.7.jar
jersey-client.jar
jersey-common.jar
jersey-container-servlet-core.jar
jersey-container-servlet.jar
jersey-core-1.11.jar
jersey-guava-2.17.jar
jersey-media-jaxb.jar
jersey-multipart-1.18.jar
jersey-server.jar
org.osgi.core-4.2.0.jar
osgi-resource-locator-1.0.1.jar
persistence-api-1.0.jar
validation-api-1.1.0.Final.jar
I am getting the following error when I am trying to up my tomcat server :
org.glassfish.jersey.server.model.ModelValidationException: Validation of the application resource model has failed during application initialization.
[[FATAL] No injection source found for a parameter of type public javax.ws.rs.core.Response com.jerser.service.UploadFileService.uploadFile(java.io.InputStream,com.sun.jersey.core.header.FormDataContentDisposition) at index 0.; source='ResourceMethod{httpMethod=POST, consumedTypes=[multipart/form-data], producedTypes=[], suspended=false, suspendTimeout=0, suspendTimeoutUnit=MILLISECONDS, invocable=Invocable{handler=ClassBasedMethodHandler{handlerClass=class com.jerser.service.UploadFileService, handlerConstructors=[org.glassfish.jersey.server.model.HandlerConstructor#d3e2d4]}, definitionMethod=public javax.ws.rs.core.Response com.jerser.service.UploadFileService.uploadFile(java.io.InputStream,com.sun.jersey.core.header.FormDataContentDisposition), parameters=[Parameter [type=class java.io.InputStream, source=file, defaultValue=null], Parameter [type=class com.sun.jersey.core.header.FormDataContentDisposition, source=file, defaultValue=null]], responseType=class javax.ws.rs.core.Response}, nameBindings=[]}']
at org.glassfish.jersey.server.ApplicationHandler.initialize(ApplicationHandler.java:528)
at org.glassfish.jersey.server.ApplicationHandler.access$500(ApplicationHandler.java:166)
at org.glassfish.jersey.server.ApplicationHandler$3.run(ApplicationHandler.java:327)
at org.glassfish.jersey.internal.Errors$2.call(Errors.java:289)
at org.glassfish.jersey.internal.Errors$2.call(Errors.java:286)
at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
at org.glassfish.jersey.internal.Errors.processWithException(Errors.java:286)
at org.glassfish.jersey.server.ApplicationHandler.<init>(ApplicationHandler.java:324)
at org.glassfish.jersey.servlet.WebComponent.<init>(WebComponent.java:338)
at org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:171)
at org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:363)
at javax.servlet.GenericServlet.init(GenericServlet.java:160)
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1176)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1102)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1009)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4885)
at org.apache.catalina.core.StandardContext$3.call(StandardContext.java:5212)
at org.apache.catalina.core.StandardContext$3.call(StandardContext.java:5207)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Over the internet I found there are plenty of example which shows How to upload MULTIPART file using RESTFul API. But with same solution. I am not able to run those code as well.
I think I am doing something wrong with the JAR files. Could anyone please help me on this?
Get rid of jersey-multipart-1.18.jar. That is for Jersey 1.x. Add these two
jersey-media-multipart-2.17
mimepull-1.9.3
For Maven you would use the following dependency (you don't need to explicitly add the mimepull dependency, as this one will pull it in).
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-multipart</artifactId>
<version>2.17</version> <!-- Make sure the Jersey version matches
the one you are currently using -->
</dependency>
Then you need to register the MultiPartFeature. If you are using a ResourceConfig for configuration, you can simply do
register(MultiPartFeature.class);
If you are using web.xml, then you can add the class as an <init-param> to the Jersey servlet
<init-param>
<param-name>jersey.config.server.provider.classnames</param-name>
<param-value>org.glassfish.jersey.media.multipart.MultiPartFeature</param-value>
</init-param>
Note that if you have multiple providers that you want to register, then you can delimit each provider class with a comma, semicolon, or space/newline. You cannot use this same param-name twice. See Suarabh's answer
UPDATE
Also, once you get rid of jersey-multipart-1.18.jar you will have compile errors for the missing imported classes. For the most part, the class names are still the same, just the packages have changed, i.e.
org.glassfish.jersey.media.multipart.FormDataParam
org.glassfish.jersey.media.multipart.FormDataContentDisposition
For Dropwizard
If you're using Dropwizard, instead of adding the jersey-media-multipart, they document for your to add dropwizard-forms instead. And instead of registering the MultiPartFeature, you should register the MultiPartBundle
#Override
public void initialize(Bootstrap<ExampleConfiguration> bootstrap) {
bootstrap.addBundle(new MultiPartBundle());
}
Really doesn't make much difference though as all the Dropwizard bundle does is register the MultiPartFeature with the ResourceConfig.
Aside
If you are here for a different ModelValidationException, here are some links for information on other causes of the exception.
1
2
3
Yet another possible cause for this very generic error is that Jersey only searches for factories associated with the last annotation when multiple ones are declared on a param. (See bug report)
Until this is fixed, if you are using any other annotations besides #FormDataParam, it has to come last.
This works:
#NotEmpty #FormDataParam("myParam") String myParam
This does not:
#FormDataParam("myParam") #NotEmpty String myParam
I too got the same exception.I did the following changes in web.xml
<init-param>
<param-name>jersey.config.server.provider.classnames</param-name>
<param-value>org.glassfish.jersey.filter.LoggingFilter;org.glassfish.jersey.moxy.json.MoxyFeature;org.glassfish.jersey.media.multipart.MultiPartFeature</param-value>
</init-param>
and changed jersey 2.7 to 2.9 .I do not know what change of this 2 has solved the issue.
Register MultiPartFeature.
In web.xml add to the Jersey servlet:
<init-param>
<param-name>jersey.config.server.provider.classnames</param-name>
<param-value>org.glassfish.jersey.media.multipart.MultiPartFeature</param-value>
</init-param>
Below code worked for me:
Class ->>> add it
Class Property --->> add it
Public Class userREST () {
#POST
#Path("upload")
#Consumes(MediaType.MULTIPART_FORM_DATA)
#Produces(MediaType.APPLICATION_JSON)
public Response uploadImageFile(#FormDataParam("uploadFile") InputStream fileInputStream,
#FormDataParam("uploadFile") FormDataContentDisposition fileFormDataContentDisposition,
#FormDataParam("FIR_REG_NUM") String FIR_REG_NUM, #FormDataParam("LOGIN_ID") String LOGIN_ID) {
final_json_result = WriteFileInFolder.fileAnalysis(fileInputStream, fileFormDataContentDisposition, FIR_REG_NUM,
LOGIN_ID);
return Response.ok(final_json_result).build();
}// uploadImageFile
Public Class FileJAXRSConfig () {
package ####.jaxrs.jwt;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import javax.ws.rs.ApplicationPath;
import javax.ws.rs.core.Application;
import ####.helper.Common###;
import ####.jaxrs.jwt.filters.JWTRequestFilter;
import ####.jaxrs.jwt.filters.JWTResponseFilter;
import ####.service.FileServicesREST;
#ApplicationPath("fileservice")
public class FileJAXRSConfig extends Application {
#Override
public Set<Class<?>> getClasses() {
Common###.logging("#ApplicationPath#FileServicesREST...");
Set<Class<?>> clazzes = new HashSet<Class<?>>();
clazzes.add(JWTRequestFilter.class);
clazzes.add(FileServicesREST.class);
clazzes.add(JWTResponseFilter.class);
return clazzes;
}
#Override
public Map<String, Object> getProperties() {
Map<String, Object> properties = new HashMap<String, Object>();
properties.put("jersey.config.server.provider.packages", "####.service");
properties.put("jersey.config.server.provider.classnames", "org.glassfish.jersey.media.multipart.MultiPartFeature");
return properties;
}
}
Don't need to add following in web.xml
<init-param>
<param-name>jersey.config.server.provider.packages</param-name>
<param-value>mha.###.service</param-value>
</init-param>
<init-param>
<param-name>jersey.config.server.provider.classnames</param-name>
<param-value>org.glassfish.jersey.media.multipart.MultiPartFeature</param-value>
</init-param>
If someone is using #FormDataParam with #ApiOperation swagger annotation, it won't work(as per swagger latest version at this time) as mentioned here:
https://github.com/swagger-api/swagger-ui/issues/169
I had this same problem with Scala and this helped me solve it. Just want to add some Scala specific details to help anyone using Dropwizard with Scala. Here is an example of how to "register" the MultiPartFeature in a Scala and Dropwizard project.
package org.research.s3.service
import io.dropwizard.Application
import io.dropwizard.setup.Environment
import org.research.s3.service.resource._
import org.research.service.s3.resource.UploadResource
import org.glassfish.jersey.media.multipart.{FormDataParam,MultiPartFeature}
class CmdaaApp() extends Application[CmdaaAppConfig] {
override def run(t: CmdaaAppConfig, env: Environment): Unit = {
env.jersey().register(new RootResource)
//Need this to make the file upload code work in
env.jersey().register(new MultiPartFeature)
env.jersey().register(new UploadResource(curBucket))
}
}
object CmdaaApp {
def main(args: Array[String]): Unit = new CmdaaApp().run(args: _*)
}
and here is the code for the UploadResource that does the upload:
package org.research.service.s3.resource
import java.io.{FileInputStream, InputStream}
import com.google.gson.{Gson, GsonBuilder}
import javax.ws.rs.core.MediaType.APPLICATION_JSON
import javax.ws.rs._
import javax.ws.rs.core.Response
import javax.ws.rs.core.MediaType
import org.research.util.OptionSerializer
import org.research.s3.service.resource.s3Bucket
import org.glassfish.jersey.media.multipart.{FormDataParam,MultiPartFeature}
#Path("/file")
class UploadResource(currentBucket: s3Bucket) {
val gsonb = new GsonBuilder()
gsonb.registerTypeAdapter(classOf[Option[Any]], new OptionSerializer)
val gson = gsonb.create
#POST
#Path("upload")
#Produces(Array(APPLICATION_JSON))
#Consumes(Array(MediaType.MULTIPART_FORM_DATA))
// def uploadFile(): Response = {
def uploadFile(#FormDataParam("file") uploadedInputStream: InputStream): Response = {
/* Need code here to get a uuid for the file name
Then return the uuid if we have success and of course 200
*/
Response.ok.entity(currentBucket.upload("testName",uploadedInputStream,false)).build()
//Response.ok().build()
}
}
This code refers to an s3 bucket but you don't need that. You can just replace that call with code do download your incoming file data to a regular file.
scala
I had the same problem when I tried to upload the file.
I spent a lot of time until I found a solution to the problem.
1.If you changed version of your JARs files you may have a version conflicts!
Clean up your artifacts/libs and rebuild project.
2.You need to register your UploadFileService class too:
register(MultiPartFeature.class);
register(UploadFileService.class);
Hope it will help someone and save your time.
in case you are getting this error while writing Dropwizard tests for the upload Resource this is the solution:
add dependency on dropwizard-forms
2.add this in the application file:
#Override
public void initialize(Bootstrap<ExampleConfiguration> bootstrap) {
bootstrap.addBundle(new MultiPartBundle());
}
in the test file add:
ResourceExtension.builder()
.addResource(new FileResource())
.addProvider(new MultiPartFeature())
.build();
I had a very similar problem and the answer that helped me was this https://stackoverflow.com/a/30407999/6801721
I was trying to use a user defined object as a query parameter and from the answer that's usually not allowed unless it meets some conditions.
In case someone comes across this in the future and is running into the same problem I was running into. Make sure that the annotations you are importing are from the correct packages. In my case I was importing javax.websocket.server.PathParam instead of javax.ws.rs.PathParam.