Does microstream already support JDK 15 - Problem with record

Solution 1:

thank you for your interest in microstream. Unfortunately, I can't come to the place where the problem is from the description of the problem. The code that is in the description comes from the jdk class Unsafe.java. Since I can't reproduce your problem yet, I quickly did a small test project in github, where the basic test for Records is in Java. https://github.com/johny2000uwb/microstream-records

public record PersonRecord(String firstName, String lastName) {

}

    @Test
    public void saveRecordTest() {
        PersonRecord personRecord = new PersonRecord("Maria", "Lukasova");

        EmbeddedStorageManager storage = EmbeddedStorage.start(personRecord, location);
        storage.shutdown();

        PersonRecord secondRecord = new PersonRecord("Kamila", "Pazourkova");
        storage = EmbeddedStorage.start(secondRecord, location);

        Assertions.assertEquals("Maria", secondRecord.firstName());

    }

Records are still only preview function, so it is necessary to enable it. For example in Maven:

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.8.1</version>
                <configuration>
                    <release>14</release> <!-- <release>13/14/15</release> -->
                    <compilerArgs>--enable-preview</compilerArgs>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>2.22.2</version>
                <configuration>
                    <argLine>--enable-preview</argLine>
                </configuration>
            </plugin>
        </plugins>
    </build>