1,835
questions
0
votes
0
answers
29
views
com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Cannot construct instance of `javax.activation.DataHandler
`@JsonIgnoreProperties(ignoreUnknown = true)
@JsonInclude(JsonInclude.Include.NON_NULL)
public class MyDocumentServiceResponse {
@JsonProperty("Status")
protected String status;
@...
-1
votes
1
answer
38
views
Delete Method in CRUD operation in Spring Bo
I have been trying CRUD Operation for my spring boot.
I have to delete the row by given name in delete() method. I need some guidance to get this working. I debugged the code but it returns 500 error ...
0
votes
0
answers
65
views
Consuming third party REST services in Java - Who provides the POJO classes?
I am a bit new to consuming third party rest APIs using Spring Boot and Java. I have experience consuming REST APIs we have developed internal to our organization. When consuming rest APIs internal to ...
- 635
0
votes
0
answers
116
views
Generate fake data into xml files based on xsd
I have an XSD file with a complex structure that is challenging to read directly. Using the JAXB-2 Maven plugin, I've generated POJO classes from this XSD. Now, I need to create a Java application ...
- 1
2
votes
1
answer
69
views
Map JSON with multiple unknown fields to Java POJO
I am trying to map the below JSON to java POJO. Below is the JSON.
{
"customObject": {
"value": {
"config-1": {
"configurationName": {
...
- 627
1
vote
0
answers
102
views
How to debug the Kryo fallback in Flink?
I wonder which is the simplest way of troubleshooting/debugging what causes
the Kryo fallback.
Detecting it is just a matter of adding this line to your job:
env.getConfig().disableGenericTypes();
or ...
- 480
0
votes
2
answers
69
views
Java Pojos - Setter-Call (Field Touched) Detection
Pojos are often used as Models/DTOs for inserting/updating data into a database.
They need to by validated (with a Validator) to make sure they only contain the expected fields for the use-case:
...
- 445
2
votes
3
answers
137
views
Why do we still need to implement 'noArgsConstructor' if Java gives a non-parameterized constructor by default?
In Spring boot if we are creating a POJO class and we end up creating only a parameterized constructor and not any default constructor then Java will throw errors, why does this happen if Java ...
- 148
0
votes
1
answer
840
views
java.lang.reflect.InaccessibleObjectException: Unable to make field private final java.lang.Object[] java.util.Arrays$ArrayList.a accessible
I cannot make access to Java POJO in Visual Studio Code with Maven.
OS : Windows 11
JDK : open-jdk 17.0.2
maven : apache-maven 3.9.6
apache flink : 1.18.1 (installed on WSL 2 ubuntu)
visual studio ...
- 1,403
0
votes
0
answers
26
views
How to get a number array from MongoDB to Java class with POJO?
So basically, I'm trying to get loc value from mongodb like this
{
_id: '01050',
city: 'HUNTINGTON',
loc: [ -72.873341, 42.265301 ],
pop: 2084,
state: 'VN'
}
But when I try to ...
0
votes
0
answers
16
views
Multiple Inner classes POJO - Mongo DB
I am trying below way to deserialize documents being read from mongodb collections
@Data
@ToString(doNotUseGetters = true)
@JsonInclude(JsonInclude.Include.NON_NULL)
public class FileInfoObject {
...
- 45
0
votes
1
answer
763
views
Getting error as "com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException" for API testing practice
Below is my main code. I am trying to do the end to end flow for POJO deserialization. I have created necessary getters and setters as well. I think access token is getting generated but after that it ...
1
vote
0
answers
31
views
Apply Object Template To Object
I'm writing an application which at some point must build a configuration for a couple of components based on configuration parameters and some execution context.
The input is a JSON (de-serialized ...
- 11
-1
votes
1
answer
66
views
Memory issues with XML-based spring configuration
I am creating a project for that I have tested both the XML-based spring configurations and Pure Java based configuration. My project is simple, it will listen on a RabbitMQ queue and perform an ...
1
vote
1
answer
2k
views
SpringBoot + Java 17 @Valid not validating POJO
I was recently trying to learn Spring and Java 17 as I only have experience with Dropwizard and Java 11, and I would like to do validation on a POJO, in a POST or PUT request.
I've encountered several ...
- 35