Ensured API compatibility java7/8.

Removed unused release plugin entry.

Author: atsticks

pom.xml

@@ -621,7 +621,6 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-javadoc-plugin</artifactId>
-				<version>2.9.1</version>
 			</plugin>
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
@@ -640,14 +639,6 @@
 				<groupId>org.codehaus.mojo</groupId>
 				<artifactId>versions-maven-plugin</artifactId>
 			</plugin>
-			<plugin>
-				<artifactId>maven-release-plugin</artifactId>
-				<version>2.4.1</version>
-				<configuration>
-					<!-- Workaround for MGPG-9 and MRELEASE-424, MRELEASE-263 -->
-					<mavenExecutorId>forked-path</mavenExecutorId>
-				</configuration>
-			</plugin>
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-enforcer-plugin</artifactId>

src/main/java/javax/money/convert/ExchangeRateProviderSupplier.java

@@ -1,24 +1,27 @@
 /*
- * CREDIT SUISSE IS WILLING TO LICENSE THIS SPECIFICATION TO YOU ONLY UPON THE
- * CONDITION THAT YOU ACCEPT ALL OF THE TERMS CONTAINED IN THIS AGREEMENT.
- * PLEASE READ THE TERMS AND CONDITIONS OF THIS AGREEMENT CAREFULLY. BY
- * DOWNLOADING THIS SPECIFICATION, YOU ACCEPT THE TERMS AND CONDITIONS OF THE
- * AGREEMENT. IF YOU ARE NOT WILLING TO BE BOUND BY IT, SELECT THE "DECLINE"
- * BUTTON AT THE BOTTOM OF THIS PAGE. Specification: JSR-354 Money and Currency
- * API ("Specification") Copyright (c) 2012-2015, Credit SUISSE All rights
- * reserved.
- */
+* CREDIT SUISSE IS WILLING TO LICENSE THIS SPECIFICATION TO YOU ONLY UPON THE
+* CONDITION THAT YOU ACCEPT ALL OF THE TERMS CONTAINED IN THIS AGREEMENT.
+* PLEASE READ THE TERMS AND CONDITIONS OF THIS AGREEMENT CAREFULLY. BY
+* DOWNLOADING THIS SPECIFICATION, YOU ACCEPT THE TERMS AND CONDITIONS OF THE
+* AGREEMENT. IF YOU ARE NOT WILLING TO BE BOUND BY IT, SELECT THE "DECLINE"
+* BUTTON AT THE BOTTOM OF THIS PAGE. Specification: JSR-354 Money and Currency
+* API ("Specification") Copyright (c) 2012-2015, Credit SUISSE All rights
+* reserved.
+*/
 package javax.money.convert;
 
-import java.util.function.Supplier;
 
 /**
- * The supplier of {@link ExchangeRateProvider} that defines an implementations.
- */
-public interface ExchangeRateProviderSupplier extends Supplier<String> {
+* A supplier of {@link ExchangeRateProvider} name that references an implementation.
+*/
+@FunctionalInterface
+public interface ExchangeRateProviderSupplier{
+
+    /**
+     * Get the provider name. This signatire equals to the signrature of java.util.function.Supplier in Java 8.
+     *
+     * @return the provider name, not null.
+     */
+    String get();
 
-	/**
-	 * @return description of the implementation of {@link ExchangeRateProvider}
-	 */
-	String getDescription();
 }