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QUESTION
Spock is being used to execute an integration test in a Spring Boot project (2.1.18.RELEASE). When I run with 1.3-groovy-2.5, I get this error:
...ANSWER
Answered 2022-Mar-28 at 21:40Regarding java.util.ServiceConfigurationError: org.junit.platform.engine.TestEngine: org.spockframework.runtime.SpockEngine Unable to get public no-arg constructor
Spring Boot 2.1.18.RELEASE
is really old, it manages JUnit 5 to 5.3.2
while Spock 2.x requires >= 5.8
. You can try setting 5.8.1
if you can't upgrade Spring Boot to a more recent version.
As for the type reflection error, we can't say much since you didn't share any code. Only that com.foo.controller.ConversionsController.createConversionJob(ConversionsController.java:68)
probably has some weird generics or is calling something that does.
QUESTION
I have a bunch of Spring Boot 2.5.6 applications that use Mockito for unit testing. The version of Mockito that is used is the one that comes shipped within SB itself (3.9.0). The JDK is OpenJDK 11.0.12+0. Everything was working fine up until yesterday, this morning I suddenly cannot run any Mockito-based tests, all of them fail with the following:
...ANSWER
Answered 2022-Mar-30 at 09:14Not sure how much of an answer this will be, but the issue is now (seemingly) self-fixed... I'll describe what I've done and what happened in case it helps other users experiencing similar issues.
After unsuccessfully trying all the things described in the question, I had to restart the laptop (again) for an unrelated problem (Zoom wouldn't start up). Upon restart the laptop simply crashed and restarted again on its own. Then it did the same a second time. Upon the third automatic restart, I was no longer experiencing issues building my Java applications.
My guess is that the NVRAM got somehow corrupted and this was affecting the JVM's ability to accept incoming requests for attachment. On a MBP M1 one cannot reset the NVRAM as with Intel models (pressing Cmd + Opt + R + P), instead the NVRAM is supposed to self-heal when it detects something wrong. I suppose after crashing the MBP finally decided to repair the NVRAM and that's why the build starting working again.
UPDATE: I have now encountered this issue a few more times and every time the "solution" was to restart the laptop a few times until it crashed. After that the issue would disappear. This adds weight to the idea that there is some inherent instability with the combination of hardware and software specified in the question. I'll leave this as an "answered" question in case anybody else has the same issue.
UPDATE 2: This may be pure coincidence, but the issue seems to be exacerbated by the usage of an additional screen, particularly using an iPad via Sidecar.
QUESTION
I'm trying to add a mutator for an existing private final
field. I can transform the field modifiers to remove the final
specification and add an accessor method:
ANSWER
Answered 2022-Mar-25 at 21:17The problem with this approach is that the field accessor considers the input type prior to the modification. Byte Buddy prohibits this as it does not consider the mutation to be legal, not knowing about the removed modifier. As a result, the transformation fails in its entirety and you get the error you are seeing. (Register a listener to see this error.)
To avoid this, you can implement a custom Implementation
using FieldAccess
(without or). You can have a look at the more convenient FieldAccessor
to see how this is implemented, only that you need to drop the validity checks.
QUESTION
I'm working on a Java project (based on Spring Boot 2.6.x) using IntelliJ Community Edition and JPA Buddy. I want to use JPA Buddy for entity utility and Liquibase integration.
The production DB (MySQL 5.7) is reachable only by ssh tunnel.
Is there a way to configure a DB connection using ssh tunnel? How can I generate a changeLog from the production DB?
Thanks! Miky
...ANSWER
Answered 2022-Mar-24 at 16:15As you speak about the PROD database - of course, a better option is to make backup/restore local copy and play with it. But regarding the first part of your question you can use ssh port forwarding
e.g.:
QUESTION
This program reads the domain from a file to a string, truncates the string with "\n" as a key, and then executes the getostbyname() function for each domain to enter the resulting information into the file.
When I use gethostbyname, I want to create a function to enter fail if there is no response for a certain period of time. I tried to implement and process the timeout function, but the function did not work.
The logic that I thought of is calling gethostbyname() and entering fail in the file if there is no response for two seconds, then proceed to the next string and call gethostbyname().
The amount of files is about 150 million domains, so I took only a part of them and made them an example.
Please help me create the functions I want.
This is input.txt
ANSWER
Answered 2022-Mar-24 at 10:22Use setjmp()
& longjmp()
pair with alarm()
.
QUESTION
Given this model class:
...ANSWER
Answered 2022-Mar-13 at 20:02You need to add setters to your properties, otherwise the deserializer can't assign values to those properties
QUESTION
In my application config i have defined the following properties:
...ANSWER
Answered 2022-Feb-16 at 13:12Acording to this answer: https://stackoverflow.com/a/51236918/16651073 tomcat falls back to default logging if it can resolve the location
Can you try to save the properties without the spaces.
Like this:
logging.file.name=application.logs
QUESTION
I am working with Java generics and I am trying to avoid Reflection as much as possible. For that, I found that byte-buddy could help me. However, I am wondering whether I can create a class (subclass of an abstract class) using ByteBuddy that allows me to reach out to a specific attribute of a parameterized type without reflection. Such an abstract class would look like this:
...ANSWER
Answered 2022-Feb-02 at 19:22You can create such a class. Have a look at the DSL and FieldAccessor
for creating (overriding) methods that access fields.
On the other hand, it seems to me that you should rather look at MethodHandle
s which can access field values as fast as any Java byte code once generated. And I argue that resolving a method handle takes less resources then creating a class.
QUESTION
I am trying to create a class in a unit test that implements an Interface by using byte buddy
...ANSWER
Answered 2022-Feb-02 at 19:19You are loading the class into a child loader of the boot loader by using
QUESTION
Yoo coderrs, have problem connect and write table to my online free database. Problem is hereUnable to create requested service
and Unable to make JDBC Connection
ANSWER
Answered 2022-Jan-28 at 09:53I just accessed your database with the following URL:
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