An illegal reflective access operation has occurred как исправить

Делал telegram bota’a по документации (https://github.com/rubenlagus/TelegramBots/wiki/Ge…)
Выскакивают ошибки:

WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.google.inject.internal.cglib.core.$ReflectUtils$1 (file:/C:/Users/Vladp/.m2/repository/com/google/inject/guice/4.2.2/guice-4.2.2.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain)
WARNING: Please consider reporting this to the maintainers of com.google.inject.internal.cglib.core.$ReflectUtils$1
WARNING: Use –illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

Вот код java и xml:

import org.telegram.telegrambots.ApiContextInitializer;
import org.telegram.telegrambots.bots.TelegramLongPollingBot;
import org.telegram.telegrambots.meta.TelegramBotsApi;
import org.telegram.telegrambots.meta.api.methods.send.SendMessage;
import org.telegram.telegrambots.meta.api.objects.Update;
import org.telegram.telegrambots.meta.exceptions.TelegramApiException;

public class Bot extends TelegramLongPollingBot {
    public static void main (String[] args) {
        ApiContextInitializer.init();
        TelegramBotsApi botsApi = new TelegramBotsApi();
        try {
            botsApi.registerBot(new Bot());
        } catch (TelegramApiException e) {
            e.printStackTrace();
        }

    }
    @Override
    public void onUpdateReceived(Update update) {
        if (update.hasMessage() && update.getMessage().hasText()) {
            SendMessage message = new SendMessage() // Create a SendMessage object with mandatory fields
                    .setChatId(update.getMessage().getChatId())
                    .setText(update.getMessage().getText());
            try {
                execute(message); // Call method to send the message
            } catch (TelegramApiException e) {
                e.printStackTrace();
            }
        }
    }
    @Override
    public String getBotUsername() {
        return "BotTotCampot_bot";
    }

    @Override
    public String getBotToken() {
        return "Тут мой токен";
    }
}

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.example</groupId>
    <artifactId>telebot</artifactId>
    <version>1.0-SNAPSHOT</version>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>7</source>
                    <target>7</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
    <dependencies>
        <dependency>
            <groupId>org.telegram</groupId>
            <artifactId>telegrambots</artifactId>
            <version>4.9.1</version>
        </dependency>


        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-nop</artifactId>
            <version>1.7.13</version>
        </dependency>
    </dependencies>

</project>

Apart from an understanding of the accesses amongst modules and their respective packages. I believe the crux of it lies in the Module System#Relaxed-strong-encapsulation and I would just cherry-pick the relevant parts of it to try and answer the question.

What defines an illegal reflective access and what circumstances
trigger the warning?

To aid in the migration to Java-9, the strong encapsulation of the modules could be relaxed.

• An implementation may provide static access, i.e. by compiled bytecode.

• May provide a means to invoke its run-time system with one or more packages of one or more of its modules open to code in all unnamed modules, i.e. to code on the classpath. If the run-time system is invoked in this way, and if by doing so some invocations of the reflection APIs succeed where otherwise they would have failed.

In such cases, you’ve actually ended up making a reflective access which is “illegal” since in a pure modular world you were not meant to do such accesses.

How it all hangs together and what triggers the warning in what
scenario?

This relaxation of the encapsulation is controlled at runtime by a new launcher option --illegal-access which by default in Java9 equals permit. The permit mode ensures

The first reflective-access operation to any such package causes a
warning to be issued, but no warnings are issued after that point.
This single warning describes how to enable further warnings. This
warning cannot be suppressed.

The modes are configurable with values debug(message as well as stacktrace for every such access), warn(message for each such access), and deny(disables such operations).

Few things to debug and fix on applications would be:-

• Run it with --illegal-access=deny to get to know about and avoid opening packages from one module to another without a module declaration including such a directive(opens) or explicit use of --add-opens VM arg.
• Static references from compiled code to JDK-internal APIs could be identified using the jdeps tool with the --jdk-internals option

The warning message issued when an illegal reflective-access operation
is detected has the following form:

WARNING: Illegal reflective access by $PERPETRATOR to $VICTIM

where:

$PERPETRATOR is the fully-qualified name of the type containing the
code that invoked the reflective operation in question plus the code
source (i.e., JAR-file path), if available, and

$VICTIM is a string that describes the member being accessed,
including the fully-qualified name of the enclosing type

Questions for such a sample warning: = JDK9: An illegal reflective access operation has occurred. org.python.core.PySystemState

Last and an important note, while trying to ensure that you do not face such warnings and are future safe, all you need to do is ensure your modules are not making those illegal reflective accesses. 🙂

In Java programming, the reflection API lets you examine the internal properties of a running Java program and manipulate them. The name of all its members can be displayed by a Java class, for example.

The “an illegal reflective access operation has occurred” warning message is related to the unauthorized access to parts of the JDK made by tools and libraries using reflection API.

In this article, we are going to show you what “an illegal reflective access operation has occurred” means and how to fix it.

From JDK9, an implementation may provide static access, i.e. by compiled bytecode or may provide a way to invoke its run-time system with one or more packages of one or more of its modules open to code in all unnamed modules, i.e. to code on the classpath.

If the run-time system is invoked in this way, and if by doing so some invocations of the reflection APIs succeed where otherwise they would have failed.

In such cases, you’ve actually ended up making a reflective access which is “illegal” since in a pure modular world you were not meant to do such accesses.

In future releases of the JDK, this illegal access to reflective data will eventually be disabled. JDK 9, 10 and 11 permits it by default. Here is the warning message:

WARNING: An illegal reflective access operation has occurred

WARNING: Illegal reflective access by com.tangosol.internal.util.ObjectFormatter (file:/opt/javaclasses/coherence/coherence.jar) to field java.lang.ref.Reference.referent

WARNING: Please consider reporting this to the maintainers of com.tangosol.internal.util.ObjectFormatter

WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations

WARNING: All illegal access operations will be denied in a future release

Permit illegal reflective access

Recent JDK versions still, by default, permits illegal access. Alternatively, in future releases, you can pass --illegal-access=permit to the script and it would opens every package in every explicit module to code in all unnamed modules, i.e., code on the class path, just as --permit-illegal-access does today.

The first illegal reflective-access operation causes a warning to be issued, as with --permit-illegal-access, but no warnings are issued after that point. This single warning will describe how to enable further warnings.

Avoid illegal reflective access

The “an illegal reflective access operation has occurred” is merely a warning message and only indicating there is reflective access to JDK internal class without doing anything about it. In the meantime, you can either

• You can specify the reflective access explicitly using java’s –add-opens parameter. The migration guide for JDK 11 provides more information.
• Use a compatible and certified version of your software. If the software is actively maintained, then the developers are now aware of the warning and a fix may come in the near future.

An illegal reflective access operation has occurred Spring Boot and affected your programming experience when installing and using AM, including Amster and ssoadm tools. As a result, your system launches the following invalid message that halts further code alteration: warning: an illegal reflective access operation has occurred Java 11.

Luckily, this profound debugging provides several debugging principles and explains why an illegal reflective access operation has occurred Maven, which is vital when applying the solutions.

So, you are at the right place if you want to learn how to clear your system from bugs and errors and complete the application without an illegal reflective access operation has occurred Intellij mistakes.

An illegal reflective access operation has occurred Eclipse and obliterates your programming experience while using or installing AM, including Amster and ssoadm tools. Henceforth, this is a typical Java bug with most versions, but research confirms it is most familiar with Java 10 and 11.

The Java version is essential when understanding the possible culprits and causes for an illegal reflective access operation has occurred PySpark. For instance, before Java 9, developers had a superpower using the Java Reflection API because they could access the non-public class members without limitation.

However, things changed drastically after Java 9 because the modular system tends to limit the Java Reflection API to a specific extent. Therefore, an illegal reflective access operation has occurred Spark error pops up while working with specific Java versions and commands.

In addition, this invalid code exception usually lies within the module system, and the strong encapsulation triggers a mistake. For instance, a migration in Java 9 may provide static access, which is compiled by bytecode, a tool that helps developers change specific values and properties.

As a result, an illegal reflective access operation has occurred Mockito when misspelling the strong encapsulation of the modules, which must be precise. Luckily, this debugging guide includes chapters that recreate the error and provide adequate debugging solutions using real-life examples and scripts.

– Installing and Using AM and Java Agent

As explained before, this error’s primary and possible cause is using and installing AM, including ssoadm and Amster tools. However, learning about this cause requires developers to discover the invalid script and exception snippets.

These warning messages indicate where the code fails, what is the exact weak element, and how developers can alter their code to debug the error. In addition, we will show you several product messages that are slightly different but still cover the same mistake.

The following example introduces the AM invalid code snippet:

Unfortunately, similar warning messages appear in DS and IDM. Readers should notice the slight difference and compare them to their documents.

– Installing and Using DM and IDM

Programmers usually experience identical errors when using or installing DM and IDM, but only with specific versions. Namely, the mistake will only affect DS 6.5.x and IDM 6.5.x versions because several properties confuse your system.

However, as you will soon see, although these are different programs and applications, the exceptions are similar because they discuss the same matter. Therefore, we suggest comparing the warning in your system to learn how to pinpoint the mistake and change the properties afterwards.

This example introduces the invalid DM script warnings:

As you will soon learn, these messages should not be challenging to repair.

– Calling Eval on Kotlin Script

Our final example before providing the finest solution calls eval on a Kotlin script, which is standard with complex projects. However, to keep it short and precise, we will not give the full syntax because we will focus on the specific code snippets that recreate this invalid instance. First, we will show you the plugins and then exemplify the imported main commands. They should be sufficient to understand where the code is broken.

The following example includes both plugins and imports:

Although we can list other invalid examples, it is time to discover solutions to help you clear your syntax without complications.

Fixing the Illegal Reflective Access Operation: Use a Target Module

The most sophisticated method of fixing this illegal caller exception at runtime is introducing the correct target and source modules to your script. However, developers must be aware this method will only succeed when we call from the modified module, modules with granted access, and the unnamed module.



In addition, another excellent way of adding opens to the target module requires a Java Agent in the instrument module. As explained earlier, the specific class has added a new redefined module since Java 9. Fortunately, developers can use this method to provide extra exports, opens, and reads that debug your program.

Learn how to apply this solution by looking at the following example:

This code first utilizes the target module to create the extra reads, exports and opens variables. Then, it invokes the redefined module method that allows the source module to be accessible to the target module. This should debug the code and allow you to complete your projects without any hassle.

– Repair the Module Declaration

The second advanced debugging method requires developers to repair the module declaration. Namely, programmers can open the package in the module info and change several settings. However, you must be a code author to complete this operation. In addition, this process consists of three modules that fix the invalid code snippets and warnings.

So, the first step is opening the package in the module info, as shown below:

Developers can be more cautious and avoid other complications by using the qualified opens that determine the module and its property. We suggest repeating the following code to debug the project:

Although only a single code difference exists, it provides an excellent alternative when safely opening the package in the module-info. Developers and programmers can unlock the entire module when migrating the existing code to the modular system.

You can discover the necessary command in the following example:

This example completes the second debugging principle that fixes the illegal reflective access without causing further complications. As you can tell, you should have no issues implementing these advanced methods in your document or application.

Conclusion

Programmers sometimes experience an illegal reflective access operation mistake in their programs when using or installing AM, including Amster and ssoadm tools. Luckily, this comprehensive guide introduced several debugging methods and explained the following points:

• This error can affect many programs and applications, although it is typical for AM
• The warnings launched by the system indicate the invalid location
• Developers can recreate the invalid message by using the same values
• The sophisticated debugging methods require adding some target modules

Although developers will likely experience this mistake again when compiling their projects, fixing it should no longer be an issue. So, remain calm the next time you face an illegal reflective access operation because this guide has all you need.

WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by retrofit2.Platform (file:/Users/mersan/.gradle/caches/modules-2/files-2.1/com.squareup.retrofit2/retrofit/2.8.0/53fa357bd7538d2c4872bddf33654f113cf6652b/retrofit-2.8.0.jar) to constructor java.lang.invoke.MethodHandles$Lookup(java.lang.Class,int)
WARNING: Please consider reporting this to the maintainers of retrofit2.Platform
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release