catch (IllegalStateException expected) {
assertThat(expected.getMessage(), containsString("No such extension com.alibaba.dubbo.common.extensionloader.ext8_add.AddExt1 by name Manual"));
}
{
AddExt1 ext = ExtensionLoader.getExtensionLoader(AddExt1.class).getExtension("impl1");
assertThat(ext, instanceOf(AddExt1Impl1.class));
assertEquals("impl1", ExtensionLoader.getExtensionLoader(AddExt1.class).getExtensionName(AddExt1Impl1.class));
}
{
ExtensionLoader.getExtensionLoader(AddExt1.class).replaceExtension("impl1", AddExt1_ManualAdd2.class);
AddExt1 ext = ExtensionLoader.getExtensionLoader(AddExt1.class).getExtension("impl1");
assertThat(ext, instanceOf(AddExt1_ManualAdd2.class));
assertEquals("impl1", ExtensionLoader.getExtensionLoader(AddExt1.class).getExtensionName(AddExt1_ManualAdd2.class));
}
}