My program is not working, please help.

[aglasencnik]

Hi, I have a problem, maybe you could help me. When I try to make a simple program in Java using Language Translation, i get an exception and a lot of error messages on runtime. My code is the same as in the documentation for listing all languages, (link below) and errors are written below. Also I mad sure my code doesn't have any errors when writting code as well as in pom.xml file. Thanks for any advice.
Link: https://cloud.ibm.com/apidocs/language-translator?code=java#listlanguages
Errors:
Exception in thread "main" java.lang.reflect.InaccessibleObjectException: Unable to make field private java.lang.String java.lang.Throwable.detailMessage accessible: module java.base does not "opens java.lang" to unnamed module @c0edf29 at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:357) at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297) at java.base/java.lang.reflect.Field.checkCanSetAccessible(Field.java:177) at java.base/java.lang.reflect.Field.setAccessible(Field.java:171) at com.google.gson.internal.reflect.UnsafeReflectionAccessor.makeAccessible(UnsafeReflectionAccessor.java:44) at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:159) at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:102) at com.google.gson.Gson.getAdapter(Gson.java:458) at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(ReflectiveTypeAdapterFactory.java:117) at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:166) at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:102) at com.google.gson.Gson.getAdapter(Gson.java:458) at com.google.gson.Gson.fromJson(Gson.java:931) at com.ibm.cloud.sdk.core.util.ResponseUtils.getValue(ResponseUtils.java:149) at com.ibm.cloud.sdk.core.util.ResponseConverterUtils$6.convert(ResponseConverterUtils.java:137) at com.ibm.cloud.sdk.core.security.TokenRequestBasedAuthenticator$2.run(TokenRequestBasedAuthenticator.java:320) at java.base/java.lang.Thread.run(Thread.java:831)

[IvMov]

The same problem has now. Maybe you can remember how you solve this problem?

[aglasencnik]

Hi @IvMov, yes I just tried a different Java sdk version and it started working, here on github was also an issue opened with the same error.
I think this one is the correct one: #1171

[IvMov]

Hi, thank you for response, @aglasencnik .
Also find the same fix - I just change jdk version from jdk 18 to jdk 11 and problem gone.
Problem was with using Watson Natural Language Understanding AI from IBM Cloud.