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javapackagejava-17

package com.sun.tools.javac.code is not visible in JDK17

I tried to access the package com.sun.tools.javac.code in JDK17. Someone said can add the VM args as below:

                <compilerArgs>
                    <arg>-Werror</arg>
                    <arg>-Xlint:all</arg>
                    <arg>-J--add-opens=jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED</arg>
                    <arg>-J--add-opens=jdk.compiler/com.sun.tools.javac.comp=ALL-UNNAMED</arg>
                    <arg>-J--add-opens=jdk.compiler/com.sun.tools.javac.file=ALL-UNNAMED</arg>
                    <arg>-J--add-opens=jdk.compiler/com.sun.tools.javac.main=ALL-UNNAMED</arg>
                    <arg>-J--add-opens=jdk.compiler/com.sun.tools.javac.model=ALL-UNNAMED</arg>
                    <arg>-J--add-opens=jdk.compiler/com.sun.tools.javac.parser=ALL-UNNAMED</arg>
                    <arg>-J--add-opens=jdk.compiler/com.sun.tools.javac.processing=ALL-UNNAMED</arg>
                    <arg>-J--add-opens=jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED</arg>
                    <arg>-J--add-opens=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED</arg>
                </compilerArgs>

pom.xml

<modelVersion>4.0.0</modelVersion>

<groupId>org.example</groupId>
<artifactId>demo</artifactId>
<version>1.0-SNAPSHOT</version>

<properties>
    <java.version>17</java.version>
    <maven.compiler.source>17</maven.compiler.source>
    <maven.compiler.target>17</maven.compiler.target>
</properties>

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.8.0</version>
            <configuration>
                <source>${java.version}</source>
                <target>${java.version}</target>
                <showDeprecation>true</showDeprecation>
                <showWarnings>true</showWarnings>
                <fork>true</fork>
                <compilerArgs>
                    <arg>-Werror</arg>
                    <arg>-Xlint:all</arg>
                    <arg>-J--add-opens=jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED</arg>
                    <arg>-J--add-opens=jdk.compiler/com.sun.tools.javac.comp=ALL-UNNAMED</arg>
                    <arg>-J--add-opens=jdk.compiler/com.sun.tools.javac.file=ALL-UNNAMED</arg>
                    <arg>-J--add-opens=jdk.compiler/com.sun.tools.javac.main=ALL-UNNAMED</arg>
                    <arg>-J--add-opens=jdk.compiler/com.sun.tools.javac.model=ALL-UNNAMED</arg>
                    <arg>-J--add-opens=jdk.compiler/com.sun.tools.javac.parser=ALL-UNNAMED</arg>
                    <arg>-J--add-opens=jdk.compiler/com.sun.tools.javac.processing=ALL-UNNAMED</arg>
                    <arg>-J--add-opens=jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED</arg>
                    <arg>-J--add-opens=jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED</arg>
                </compilerArgs>
            </configuration>
        </plugin>
    </plugins>
</build>

However, I still got a compiler error:
error: package com.sun.tools.javac.code is not visible

How can I access the com.sun.tools.javac.code in jdk17?
I must access this API and don't want use other ways.

Solution

  • You'll need to add the --add-exports switch.
    Specifically, "--add-exports jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED".

    Migrating From JDK 8 to Later JDK Releases.

    If that does not work, try referring to the following question.
    StackOverflow – error: package com.sun.tools.javac.util does not exist.