Migrate config-debug groovy->java

All tests in `org.springframework.security.config.debug` are migrated.

Note that `SecurityDebugBeanFactoryPostProceessorTest` preserves the original structure-verifying strategy used in the Groovy test. Verifying debug behavior turns out to be fairly tricky since being behaviorally invisible is in its nature.

Issue: gh-4939

config/src/test/java/org/springframework/security/config/debug/AuthProviderDependency.java

@@ -0,0 +1,28 @@
+/*
+ * Copyright 2002-2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.security.config.debug;
+
+import org.springframework.stereotype.Component;
+
+/**
+ * Fake depenency for {@link TestAuthenticationProvider}
+ * @author Rob Winch
+ *
+ */
+@Component
+public class AuthProviderDependency {
+
+}

config/src/test/java/org/springframework/security/config/debug/SecurityDebugBeanFactoryPostProcessorTests.java

@@ -0,0 +1,46 @@
+/*
+ * Copyright 2002-2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.security.config.debug;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.springframework.security.config.test.SpringTestRule;
+import org.springframework.security.web.FilterChainProxy;
+import org.springframework.security.web.debug.DebugFilter;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.springframework.security.config.BeanIds.FILTER_CHAIN_PROXY;
+import static org.springframework.security.config.BeanIds.SPRING_SECURITY_FILTER_CHAIN;
+
+/**
+ * @author Rob Winch
+ * @author Josh Cummings
+ */
+public class SecurityDebugBeanFactoryPostProcessorTests {
+
+	@Rule
+	public final SpringTestRule spring = new SpringTestRule();
+
+	@Test
+	public void contextRefreshWhenInDebugModeAndDependencyHasAutowiredConstructorThenDebugModeStillWorks() {
+		// SEC-1885
+		this.spring.configLocations("classpath:org/springframework/security/config/debug/SecurityDebugBeanFactoryPostProcessorTests-context.xml")
+			.autowire();
+
+		assertThat(this.spring.getContext().getBean(SPRING_SECURITY_FILTER_CHAIN)).isInstanceOf(DebugFilter.class);
+		assertThat(this.spring.getContext().getBean(FILTER_CHAIN_PROXY)).isInstanceOf(FilterChainProxy.class);
+	}
+}

config/src/test/java/org/springframework/security/config/debug/TestAuthenticationProvider.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright 2002-2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.security.config.debug;
+
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.security.authentication.AuthenticationProvider;
+import org.springframework.security.core.Authentication;
+import org.springframework.security.core.AuthenticationException;
+import org.springframework.stereotype.Service;
+
+/**
+ * An {@link AuthenticationProvider} that has an {@link Autowired} constructor which is necessary to recreate SEC-1885.
+ * @author Rob Winch
+ *
+ */
+@Service("authProvider")
+public class TestAuthenticationProvider implements AuthenticationProvider {
+
+	@Autowired
+	public TestAuthenticationProvider(AuthProviderDependency authProviderDependency) {
+	}
+
+	public Authentication authenticate(Authentication authentication) throws AuthenticationException {
+		throw new UnsupportedOperationException();
+	}
+
+	public boolean supports(Class<?> authentication) {
+		throw new UnsupportedOperationException();
+	}
+}