#2272 Do not fail in startup time if LockProvider is not found

spring/shedlock-spring/src/main/java/net/javacrumbs/shedlock/spring/aop/LockProviderSupplier.java

@@ -3,7 +3,6 @@
 import java.lang.reflect.Method;
 import net.javacrumbs.shedlock.core.LockProvider;
 import org.springframework.beans.factory.ListableBeanFactory;
-import org.springframework.beans.factory.NoSuchBeanDefinitionException;
 
 /**
  * Not public now. If you think you need your LockProviderSupplier please create an issue and explain your use-case.
@@ -15,10 +14,10 @@ interface LockProviderSupplier {
     static LockProviderSupplier create(ListableBeanFactory beanFactory) {
         // Only fetching beanNames as the beans might not have been initialized yet.
         String[] beanNamesForType = beanFactory.getBeanNamesForType(LockProvider.class);
-        if (beanNamesForType.length == 0) {
-            throw new NoSuchBeanDefinitionException(LockProvider.class, "No LockProvider bean found.");
-        }
-        if (beanNamesForType.length == 1) {
+        // If there are no beans of LockProvider type, we can't fail here as in older version we
+        // did not fail, and it's quire common in tests. To maintain backward compatibility
+        // the failure will happen in runtime.
+        if (beanNamesForType.length <= 1) {
             return (target, method, arguments) -> beanFactory.getBean(LockProvider.class);
         }
         return new BeanNameSelectingLockProviderSupplier(beanFactory);

spring/test/shedlock-springboot-test/src/main/java/net/javacrumbs/shedlock/test/boot/Application.java

@@ -13,13 +13,9 @@
  */
 package net.javacrumbs.shedlock.test.boot;
 
-import javax.sql.DataSource;
-import net.javacrumbs.shedlock.core.LockProvider;
-import net.javacrumbs.shedlock.provider.jdbctemplate.JdbcTemplateLockProvider;
 import net.javacrumbs.shedlock.spring.annotation.EnableSchedulerLock;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
-import org.springframework.context.annotation.Bean;
 import org.springframework.scheduling.annotation.EnableScheduling;
 
 @SpringBootApplication
@@ -30,9 +26,4 @@ public class Application {
     public static void main(String[] args) {
         SpringApplication.run(Application.class);
     }
-
-    @Bean
-    public LockProvider lockProvider(DataSource dataSource) {
-        return new JdbcTemplateLockProvider(dataSource, "shedlock");
-    }
 }

spring/test/shedlock-springboot-test/src/main/java/net/javacrumbs/shedlock/test/boot/ShedlockConfig.java

@@ -0,0 +1,15 @@
+package net.javacrumbs.shedlock.test.boot;
+
+import javax.sql.DataSource;
+import net.javacrumbs.shedlock.core.LockProvider;
+import net.javacrumbs.shedlock.provider.jdbctemplate.JdbcTemplateLockProvider;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class ShedlockConfig {
+    @Bean
+    public LockProvider lockProvider(DataSource dataSource) {
+        return new JdbcTemplateLockProvider(dataSource, "shedlock");
+    }
+}

spring/test/shedlock-springboot-test/src/test/java/net/javacrumbs/shedlock/test/boot/HelloControllerTest.java

@@ -0,0 +1,21 @@
+package net.javacrumbs.shedlock.test.boot;
+
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.test.web.servlet.MockMvc;
+
+@WebMvcTest(HelloController.class)
+class HelloControllerTest {
+
+    @Autowired
+    private MockMvc mockMvc;
+
+    @Test
+    void shouldCallController() throws Exception {
+        mockMvc.perform(get("/")).andExpect(status().isOk());
+    }
+}