Use static factory methods and proxyBeanMethods = false

It is better to be explicit about beans of type `Module` and make
sure they don't interfere with Spring trying to enhance
`@Configuration` classes. The tests are now clear of the pesky
warning logs, and there is a new section in the README.

src/test/java/org/springframework/guice/BeanPostProcessorTests.java

@@ -97,7 +97,7 @@ public class BeanPostProcessorTests {
 	static class BeanPostProcessorTestConfig {
 
 		@Bean
-		PostProcessorRegistrar postProcessorRegistrar() {
+		static PostProcessorRegistrar postProcessorRegistrar() {
 			return new PostProcessorRegistrar();
 		}
 
@@ -112,7 +112,7 @@ public class BeanPostProcessorTests {
 		}
 
 		@Bean
-		Module someGuiceModule() {
+		static Module someGuiceModule() {
 			return new AbstractModule() {
 
 				@Override

src/test/java/org/springframework/guice/BindingAnnotationTests.java

@@ -222,7 +222,7 @@ public class BindingAnnotationTests {
 		}
 
 		@Bean
-		AbstractModule module() {
+		static AbstractModule module() {
 			return new AbstractModule() {
 				@Override
 				protected void configure() {

src/test/java/org/springframework/guice/BindingDeduplicationTests.java

@@ -83,7 +83,7 @@ public class BindingDeduplicationTests {
 		}
 
 		@Bean
-		Module module() {
+		static Module module() {
 			return new AbstractModule() {
 				@Override
 				protected void configure() {

src/test/java/org/springframework/guice/DuplicateNamesDifferentTypesTests.java

@@ -93,7 +93,7 @@ public class DuplicateNamesDifferentTypesTests {
 	static class DuplicateNamesDifferentTypesTestsConfig {
 
 		@Bean
-		Module module() {
+		static Module module() {
 			return new AbstractModule() {
 				@Override
 				protected void configure() {

src/test/java/org/springframework/guice/ElementVisitorTests.java

@@ -105,7 +105,7 @@ public class ElementVisitorTests {
 		}
 
 		@Bean
-		Module module() {
+		static Module module() {
 			return new AbstractModule() {
 				@Override
 				protected void configure() {

src/test/java/org/springframework/guice/LazyInitializationTests.java

@@ -71,7 +71,7 @@ public class LazyInitializationTests {
 	static class GuiceConfig {
 
 		@Bean
-		GuiceModule guiceModule() {
+		static GuiceModule guiceModule() {
 			return new GuiceModule();
 		}
 

src/test/java/org/springframework/guice/MapWiringTests.java

@@ -49,7 +49,7 @@ public class MapWiringTests {
 	static class ModulesConfig {
 
 		@Bean
-		TestConfig testConfig() {
+		static TestConfig testConfig() {
 			return new TestConfig();
 		}
 

src/test/java/org/springframework/guice/ModuleFilteringTests.java

@@ -93,7 +93,7 @@ public class ModuleFilteringTests {
 		}
 
 		@Bean
-		Module module() {
+		static Module module() {
 			return new AbstractModule() {
 
 				@Override

src/test/java/org/springframework/guice/PrivateModuleTests.java

@@ -121,7 +121,7 @@ public class PrivateModuleTests {
 		}
 
 		@Bean
-		Module module() {
+		static Module module() {
 			return new AbstractModule() {
 				@Override
 				protected void configure() {

src/test/java/org/springframework/guice/PrototypeScopedBeanTests.java

@@ -49,7 +49,7 @@ public class PrototypeScopedBeanTests {
 	static class ModulesConfig {
 
 		@Bean
-		Module guiceModule() {
+		static Module guiceModule() {
 			return new AbstractModule() {
 				@Override
 				protected void configure() {

src/test/java/org/springframework/guice/ProvidesSupplierWiringTests.java

@@ -71,7 +71,7 @@ public class ProvidesSupplierWiringTests {
 	static class ModulesConfig {
 
 		@Bean
-		TestConfig testConfig() {
+		static TestConfig testConfig() {
 			return new TestConfig();
 		}
 

src/test/java/org/springframework/guice/ScopingTests.java

@@ -91,7 +91,7 @@ public class ScopingTests {
 	static class ScopingTestsConfig {
 
 		@Bean
-		Module module() {
+		static Module module() {
 			return new AbstractModule() {
 				@Override
 				protected void configure() {

src/test/java/org/springframework/guice/SpringAutowiredCollectionTests.java

@@ -61,7 +61,7 @@ public class SpringAutowiredCollectionTests {
 		}
 
 		@Bean
-		GuiceModule guiceServiceModule() {
+		static GuiceModule guiceServiceModule() {
 			return new GuiceModule();
 		}
 

src/test/java/org/springframework/guice/SuperClassTests.java

@@ -361,7 +361,7 @@ public class SuperClassTests {
 	static class DisableJITConfig {
 
 		@Bean
-		AbstractModule disableJITModule() {
+		static AbstractModule disableJITModule() {
 			return new AbstractModule() {
 				@Override
 				protected void configure() {

src/test/java/org/springframework/guice/annotation/EnableGuiceModulesTests.java

@@ -119,7 +119,7 @@ public class EnableGuiceModulesTests {
 
 	}
 
-	@Configuration
+	@Configuration(proxyBeanMethods = false)
 	@EnableGuiceModules
 	protected static class ModuleConfig extends AbstractModule {
 
@@ -135,12 +135,12 @@ public class EnableGuiceModulesTests {
 
 	}
 
-	@Configuration
+	@Configuration(proxyBeanMethods = false)
 	@EnableGuiceModules
 	protected static class ModuleBeanConfig {
 
 		@Bean
-		public MyModule module() {
+		public static MyModule module() {
 			return new MyModule();
 		}
 
@@ -204,7 +204,7 @@ public class EnableGuiceModulesTests {
 		}
 
 		@Bean
-		public MyGuiceModule bazModule() {
+		public static MyGuiceModule bazModule() {
 			return new MyGuiceModule();
 		}
 

src/test/java/org/springframework/guice/annotation/ModuleBeanWiringTests.java

@@ -56,7 +56,7 @@ public class ModuleBeanWiringTests extends AbstractCompleteWiringTests {
 	}
 
 	@EnableGuiceModules
-	@Configuration
+	@Configuration(proxyBeanMethods = false)
 	public static class TestConfig extends AbstractModule {
 
 		@Autowired

src/test/java/org/springframework/guice/annotation/ModuleNamedBeanWiringTests.java

@@ -56,7 +56,7 @@ public class ModuleNamedBeanWiringTests extends AbstractCompleteWiringTests {
 	}
 
 	@EnableGuiceModules
-	@Configuration
+	@Configuration(proxyBeanMethods = false)
 	public static class TestConfig extends AbstractModule {
 
 		@Autowired

src/test/java/org/springframework/guice/module/DevelepmentStageInjectorTest.java

@@ -65,7 +65,7 @@ public class DevelepmentStageInjectorTest {
 	static class ModulesConfig {
 
 		@Bean
-		TestGuiceModule testGuiceModule() {
+		static TestGuiceModule testGuiceModule() {
 			return new TestGuiceModule();
 		}
 

src/test/java/org/springframework/guice/module/SpringModuleWrappedTests.java

@@ -79,7 +79,7 @@ public class SpringModuleWrappedTests {
 	protected static class ModuleProviderConfig {
 
 		@Bean
-		public ProviderModule module() {
+		public static ProviderModule module() {
 			return new ProviderModule();
 		}