run async scripts in a sync way in integration tests

build.gradle

@@ -282,6 +282,7 @@ compileJava {
     options.errorprone.disable('UnusedVariable')
     options.errorprone.disable('MixedMutabilityReturnType')
     options.errorprone.disable('MissingOverride')
+    options.errorprone.disable('JavaTimeDefaultTimeZone') // a little bit too noisy
 }
 
 compileJava.dependsOn(processResources)

src/main/java/alfio/config/DataSourceConfiguration.java

@@ -64,6 +64,9 @@
 import java.util.EnumSet;
 import java.util.List;
 import java.util.Set;
+import java.util.concurrent.Executor;
+import java.util.concurrent.Executors;
+import java.util.function.Supplier;
 
 @Configuration
 @EnableTransactionManagement
@@ -138,6 +141,12 @@ public List<ParameterConverter> getAdditionalParameterConverters() {
         return Arrays.asList(new JSONColumnMapper.Converter(), new ArrayColumnMapper.Converter());
     }
 
+    @Bean
+    @Profile("!"+Initializer.PROFILE_INTEGRATION_TEST)
+    public Supplier<Executor> getNewSingleThreadExecutorSupplier() {
+        return () -> Executors.newSingleThreadExecutor();
+    }
+
     @Bean
     public Flyway migrator(DataSource dataSource) {
         var configuration = Flyway.configure();

src/main/java/alfio/db/PGSQL/V22_1_14_8__MigrateMailchimp.java

@@ -41,6 +41,7 @@
 import java.nio.charset.StandardCharsets;
 import java.util.List;
 import java.util.Objects;
+import java.util.concurrent.Executors;
 
 import static alfio.util.Wrappers.optionally;
 
@@ -66,7 +67,7 @@ public void migrate(Context context) throws Exception {
         ExtensionRepository extensionRepository = QueryFactory.from(ExtensionRepository.class, "PGSQL", dataSource);
         ExtensionLogRepository extensionLogRepository = QueryFactory.from(ExtensionLogRepository.class, "PGSQL", dataSource);
         PluginRepository pluginRepository = QueryFactory.from(PluginRepository.class, "PGSQL", dataSource);
-        ExtensionService extensionService = new ExtensionService(new ScriptingExecutionService(HttpClient.newHttpClient()), extensionRepository, extensionLogRepository, new DataSourceTransactionManager(dataSource), new ExternalConfiguration());
+        ExtensionService extensionService = new ExtensionService(new ScriptingExecutionService(HttpClient.newHttpClient(), () -> Executors.newSingleThreadExecutor()), extensionRepository, extensionLogRepository, new DataSourceTransactionManager(dataSource), new ExternalConfiguration());
 
         extensionService.createOrUpdate(null, null, new Extension("-", "mailchimp", getMailChimpScript(), true));
 

src/main/java/alfio/extension/ScriptingExecutionService.java

@@ -29,6 +29,7 @@
 import java.util.Collections;
 import java.util.Map;
 import java.util.Optional;
+import java.util.concurrent.Executor;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.concurrent.TimeUnit;
@@ -47,20 +48,22 @@
 public class ScriptingExecutionService {
 
     private final SimpleHttpClient simpleHttpClient;
+    private final Supplier<Executor> executorSupplier;
 
-    public ScriptingExecutionService(HttpClient httpClient) {
+    public ScriptingExecutionService(HttpClient httpClient, Supplier<Executor> executorSupplier) {
         this.simpleHttpClient = new SimpleHttpClient(httpClient);
+        this.executorSupplier = executorSupplier;
     }
 
     private static final Compilable engine = (Compilable) new ScriptEngineManager().getEngineByName("nashorn");
     private final Cache<String, CompiledScript> compiledScriptCache = Caffeine.newBuilder()
         .expireAfterAccess(12, TimeUnit.HOURS)
         .build();
-    private final Cache<String, ExecutorService> asyncExecutors = Caffeine.newBuilder()
+    private final Cache<String, Executor> asyncExecutors = Caffeine.newBuilder()
         .expireAfterAccess(12, TimeUnit.HOURS)
-        .removalListener((String key, ExecutorService value, RemovalCause cause) -> {
-            if (value != null) {
-                value.shutdown();
+        .removalListener((String key, Executor value, RemovalCause cause) -> {
+            if (value != null && value instanceof ExecutorService) {
+                ((ExecutorService) value).shutdown();
             }
         })
         .build();
@@ -79,8 +82,8 @@ public <T> T executeScript(String name, String hash, Supplier<String> scriptFetc
     }
 
     public void executeScriptAsync(String path, String name, String hash, Supplier<String> scriptFetcher, Map<String, Object> params,  ExtensionLogger extensionLogger) {
-        Optional.ofNullable(asyncExecutors.get(path, key -> Executors.newSingleThreadExecutor()))
-            .ifPresent(it -> it.submit(() -> executeScript(name, hash, scriptFetcher, params, Object.class, extensionLogger)));
+        Optional.ofNullable(asyncExecutors.get(path, key -> executorSupplier.get()))
+            .ifPresent(it -> it.execute(() -> executeScript(name, hash, scriptFetcher, params, Object.class, extensionLogger)));
     }
 
 

src/test/java/alfio/TestConfiguration.java

@@ -16,13 +16,13 @@
  */
 package alfio;
 
+import alfio.config.Initializer;
 import alfio.config.support.PlatformProvider;
 import alfio.manager.FileDownloadManager;
 import alfio.test.util.IntegrationTestUtil;
 import alfio.util.BaseIntegrationTest;
 import com.opentable.db.postgres.embedded.EmbeddedPostgres;
 import com.zaxxer.hikari.HikariDataSource;
-import org.springframework.beans.factory.config.PropertyPlaceholderConfigurer;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Profile;
@@ -42,7 +42,8 @@
 import java.time.ZoneId;
 import java.time.ZonedDateTime;
 import java.util.Properties;
-
+import java.util.concurrent.Executor;
+import java.util.function.Supplier;
 
 
 @Configuration
@@ -115,4 +116,10 @@ public DownloadedFile downloadFile(String url) {
             }
         };
     }
+
+    @Bean
+    @Profile(Initializer.PROFILE_INTEGRATION_TEST)
+    public Supplier<Executor> getCurrentThreadExecutorSupplier() {
+        return () -> (job) -> job.run();
+    }
 }