[Bug]: Getting org.testcontainers.shaded.org.apache.commons.io.IOUtils when using `.withInitScript()`

[tommyli]

Module

Core

Testcontainers version

2.0.2

Using the latest Testcontainers version?

Yes

Host OS

MacOS Tahoe 26.1

Host Arch

ARM

Docker version

Docker Desktop for Mac: 4.54.0 (212467)
Engine: 29.1.2

What happened?

Below fails with the error as described in the log. I can't easily fix this using forced dependencies given it's using a shaded import, I'm using Gradle.

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;

import org.junit.jupiter.api.Test;
import org.testcontainers.containers.PostgreSQLContainer;
import org.testcontainers.junit.jupiter.Container;
import org.testcontainers.junit.jupiter.Testcontainers;
import org.testcontainers.utility.MountableFile;

@Testcontainers
class PostgresIntegrationTest {

  @Container
  private static final PostgreSQLContainer<?> postgres = new PostgreSQLContainer<>("postgres:15-alpine")
    .withDatabaseName("testdb")
    .withUsername("testuser")
    .withPassword("testpass")
    .withInitScript("sql/init.sql")
//    .withCopyFileToContainer(
//      MountableFile.forClasspathResource("sql"),
//      "/docker-entrypoint-initdb.d"
//    )
    ;

  @Test
  void testDatabaseConnection() throws Exception {
    // given
    String jdbcUrl = postgres.getJdbcUrl();
    String username = postgres.getUsername();
    String password = postgres.getPassword();

    // when
    try (Connection conn = DriverManager.getConnection(jdbcUrl, username, password);
         Statement stmt = conn.createStatement();
         ResultSet rs = stmt.executeQuery("SELECT 1")) {

      // then
      assertTrue(rs.next());
      int result = rs.getInt(1);
      assertEquals(1, result);
    }
  }
}

Relevant log output

org/testcontainers/shaded/org/apache/commons/io/IOUtils
java.lang.NoClassDefFoundError: org/testcontainers/shaded/org/apache/commons/io/IOUtils
	at org.testcontainers.ext.ScriptUtils.runInitScript(ScriptUtils.java:212)
	at org.testcontainers.containers.JdbcDatabaseContainer.lambda$runInitScriptIfRequired$0(JdbcDatabaseContainer.java:368)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
	at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179)
	at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1708)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499)
	at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:596)
	at org.testcontainers.containers.JdbcDatabaseContainer.runInitScriptIfRequired(JdbcDatabaseContainer.java:368)
	at org.testcontainers.containers.JdbcDatabaseContainer.containerIsStarted(JdbcDatabaseContainer.java:221)
	at org.testcontainers.containers.GenericContainer.containerIsStarted(GenericContainer.java:716)
	at org.testcontainers.containers.GenericContainer.tryStart(GenericContainer.java:529)
	at org.testcontainers.containers.GenericContainer.lambda$doStart$0(GenericContainer.java:341)
	at org.rnorth.ducttape.unreliables.Unreliables.retryUntilSuccess(Unreliables.java:81)

Additional Information

No response

[eddumelendez]

Hi, we can not reproduce this issue and it could be related to having mixed testcontainers version in classpath. See #11135 (comment)

I'll close the issue but if it persist LMK and please attach a reproducer, then I can reopen the issue.

[tommyli]

Yep, it was a dependency issue.

Changed from org.testcontainers:postgresql to org.testcontainers:testcontainers-postgresql fixed the issue.