Fix unclosed streams

* make sure Files.path() properly closes its directory, using try-with-resources
* missing one, found by @violetagg
* cherry pick from 1abd516456 and ec894cb82f

spring-cloud-bindings-tests/pom.xml

@@ -26,7 +26,7 @@
 		<dependency>
 			<groupId>org.springframework.cloud</groupId>
 			<artifactId>spring-cloud-bindings</artifactId>
-			<version>${version}</version>
+			<version>${project.version}</version>
 			<scope>test</scope>
 		</dependency>
 		<dependency>

spring-cloud-bindings/src/main/java/org/springframework/cloud/bindings/Binding.java

@@ -23,6 +23,7 @@ import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.*;
 import java.util.stream.Collectors;
+import java.util.stream.Stream;
 
 /**
  * A representation of a binding as defined by the
@@ -114,13 +115,12 @@ public final class Binding {
             return Collections.emptyMap();
         }
 
-        try {
-            return Files.list(path)
-                    .filter(p -> {
+        try (Stream<Path> paths = Files.list(path)) {
+            return paths.filter(p -> {
                         try {
                             return !Files.isHidden(p);
                         } catch (IOException e) {
-                            throw new IllegalStateException(String.format("unable to determine id file '%s' is hidden", p), e);
+                            throw new IllegalStateException(String.format("unable to determine if file '%s' is hidden", p), e);
                         }
                     })
                     .filter(p -> !Files.isDirectory(p))

spring-cloud-bindings/src/main/java/org/springframework/cloud/bindings/Bindings.java

@@ -26,6 +26,7 @@ import java.util.Collections;
 import java.util.List;
 import java.util.Map;
 import java.util.stream.Collectors;
+import java.util.stream.Stream;
 
 
 /**
@@ -81,8 +82,8 @@ public final class Bindings {
             throw new IllegalArgumentException(String.format("%s is not a directory", p));
         }
 
-        try {
-            this.bindings = Files.list(p)
+        try (Stream<Path> paths = Files.list(p)) {
+            this.bindings = paths
                     .map(Binding::new)
                     .collect(Collectors.toList());
         } catch (IOException e) {