BindFailureAnalyzer should show original failure message

Fixes gh-13122

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/diagnostics/analyzer/BindFailureAnalyzer.java

@@ -70,11 +70,12 @@ class BindFailureAnalyzer extends AbstractFailureAnalyzer<BindException> {
 	}
 
 	private String getMessage(BindException cause) {
-		if (cause.getCause() != null
-				&& StringUtils.hasText(cause.getCause().getMessage())) {
-			return cause.getCause().getMessage();
+		Throwable failure = cause;
+		while (failure.getCause() != null) {
+			failure = failure.getCause();
 		}
-		return cause.getMessage();
+		return (StringUtils.hasText(failure.getMessage()) ? failure.getMessage()
+				: cause.getMessage());
 	}
 
 	private FailureAnalysis getFailureAnalysis(Object description, BindException cause) {

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/diagnostics/analyzer/BindFailureAnalyzerTests.java

@@ -77,6 +77,14 @@ public class BindFailureAnalyzerTests {
 		}
 	}
 
+	@Test
+	public void bindExceptionWithNestedFailureShouldDisplayNestedMessage() {
+		FailureAnalysis analysis = performAnalysis(NestedFailureConfiguration.class,
+				"test.foo.value=hello");
+		assertThat(analysis.getDescription()).contains(failure("test.foo.value", "hello",
+				"\"test.foo.value\" from property source \"test\"", "This is a failure"));
+	}
+
 	private static String failure(String property, String value, String origin,
 			String reason) {
 		return String.format(
@@ -139,6 +147,11 @@ public class BindFailureAnalyzerTests {
 
 	}
 
+	@EnableConfigurationProperties(NestedFailureProperties.class)
+	static class NestedFailureConfiguration {
+
+	}
+
 	@ConfigurationProperties("test.foo")
 	@Validated
 	static class FieldValidationFailureProperties {
@@ -201,6 +214,21 @@ public class BindFailureAnalyzerTests {
 
 	}
 
+	@ConfigurationProperties("test.foo")
+	static class NestedFailureProperties {
+
+		private String value;
+
+		public String getValue() {
+			return this.value;
+		}
+
+		public void setValue(String value) {
+			throw new RuntimeException("This is a failure");
+		}
+
+	}
+
 	enum Fruit {
 
 		APPLE, BANANA, ORANGE