v3.0.1

CHANGELOG.md

@@ -1,3 +1,7 @@
+## 3.0.1
+
+* Fix for ExplicitMigrater without any scripts
+
 ## 3.0.0
 
 * Added support for EclipseStore v2

micro-migration/src/main/java/software/xdev/micromigration/versionagnostic/VersionAgnosticMigrationManager.java

@@ -154,7 +154,7 @@ public void migrate(final Object objectToMigrate)
 			objectToMigrate
 		);
 		// Update stored version, if needed
-		if(!versionAfterUpdate.equals(versionBeforeUpdate))
+		if(versionAfterUpdate != null && !versionAfterUpdate.equals(versionBeforeUpdate))
 		{
 			this.currentVersionSetter.accept(versionAfterUpdate);
 			this.currentVersionStorer.accept(versionAfterUpdate);

micro-migration/src/test/java/software/xdev/micromigration/eclipsestore/integration/MigrationScriptWithNullSourceVersionTest.java

@@ -88,6 +88,32 @@ void updateFromEmptyVersion(@TempDir final Path storageFolder)
 		}
 	}
 
+	@Test
+	void updateWithNoScripts(@TempDir final Path storageFolder)
+	{
+		// First run without any migration script
+		try(final EmbeddedStorageManager storageManager = this.startEmbeddedStorageManagerWithPath(storageFolder))
+		{
+			final EmptyVersionedRoot firstRoot = new EmptyVersionedRoot();
+			storageManager.setRoot(firstRoot);
+			storageManager.storeRoot();
+			assertNull(firstRoot.getVersion());
+		}
+
+		try(final EmbeddedStorageManager storageManager = this.startEmbeddedStorageManagerWithPath(storageFolder))
+		{
+			new MigrationManager(
+				(Versioned)storageManager.root(),
+				new ExplicitMigrater(),
+				storageManager
+			)
+				.migrate(storageManager.root());
+			@SuppressWarnings("unchecked")
+			final EmptyVersionedRoot currentRoot = (EmptyVersionedRoot)storageManager.root();
+			assertNull(currentRoot.getVersion());
+		}
+	}
+
 	private EmbeddedStorageManager startEmbeddedStorageManagerWithPath(final Path storageFolder)
 	{
 		return EmbeddedStorage.start(storageFolder);