BCI | Brain-Computer interface stuff | Dataset library

You can not turn arbitrary classes into hidden classes.

The documentation of defineHiddenClass contains the sentence

• On any attempt to resolve the entry in the run-time constant pool indicated by this_class, the symbolic reference is considered to be resolved to C and resolution always succeeds immediately.

What it doesn’t spell out explicitly is that this is the only place where a type resolution ever ends up at the hidden class.

But it has been said unambiguously in bug report JDK-8222730:

For a hidden class, its specified hidden name should only be accessible through the hidden class's 'this_class' constant pool entry.

The class should not be accessible by specifying its original name in, for example, a method or field signature even within the hidden class.

Which we can check. Even a simple case like

Protoc handling of path names is pretty confusing, but here are the basics:

• Input file names are separated to include dir and relative path.
• Relative path determines the name of the symbols that go into generated files.
• Include dir must match a directory given with -I.
• If no -I arguments are given, there is always an implicit -I .

Based on this, we can figure out why it works the way it works for you:

Case 1: relative path

It is a problem with your Eclipse, not with Java-17 itself. Java-17 has been released only yesterday. Wait for some time until the IDEs are updated to support Java-17.

Demo:

I don't know why the verify error is complaining about the stack map table, when there's a much more glaring problem: the goto instruction is branching to offset 84, which is just past the end of the suite method. This is what I found when checking the class that you linked to. The dump from the verify error looks different, but it references "bci: @88", which is also out of bounds.

As stated in the comments, the problem comes from a jackson-dataformat-smile library that your system administrator put in Tomcat's classpath.

If you really can't get rid of it you can use one of three solutions:

1. Add the library to your project dependencies (it will override the one in Tomcat's classpath),

2. Disable the MappingJackson2SmileHttpMessageConverter: unlike previously stated the SmileFactory is not detected by the ServiceLoader, but called explicitly by Spring if it detects the factory on its classpath (cf. WebMvcConfigurationSupport #addDefaultMessageConverters). This is the price of features "magically" appearing by adding a library to the classpath.

   Fortunately you can override the default message converters: just add a WebMvcConfigurer and override its configureMessageConverters. You can even do it in your @SpringBootApplication class:

If you are using springboot then jackson is added by default,

So the version of jackson you are adding manually is probably conflicting with the one which the spring boot adds,

Try to delete the jackson dependencies from your pom.xml.

If you need to override the version which was added by default by the spring boot, then you need to exclude it first and then add your own dependency.

You need to create a separate instance of Mock for each configuration section:

How about something like this? I made up data just to give a simple idea:

Based on the type definitions, I'd guess you're passing a string and want to filter the array of objects based on it. You'd then need to return array of objects instead of array of strings.

You could use Array#map with Array#filter. Try the following