Reinstate Java 7 compatibility

build.gradle

@@ -7,6 +7,10 @@ allprojects {
 
 project(':spring-restdocs-core') {
 	apply plugin: 'java'
+
+	sourceCompatibility = 1.7
+	targetCompatibility = 1.7
+
 	dependencies {
 		compile 'junit:junit:4.11'
 		compile "org.springframework:spring-test:$springVersion"

spring-restdocs-core/.settings/org.eclipse.jdt.core.prefs

@@ -1,14 +1,14 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.7
 org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.compliance=1.7
 org.eclipse.jdt.core.compiler.debug.lineNumber=generate
 org.eclipse.jdt.core.compiler.debug.localVariable=generate
 org.eclipse.jdt.core.compiler.debug.sourceFile=generate
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.source=1.7
 org.eclipse.jdt.core.formatter.align_type_members_on_columns=false
 org.eclipse.jdt.core.formatter.alignment_for_arguments_in_allocation_expression=16
 org.eclipse.jdt.core.formatter.alignment_for_arguments_in_annotation=0

spring-restdocs-core/src/main/java/org/springframework/restdocs/core/IterableEnumeration.java

@@ -41,6 +41,11 @@ public final class IterableEnumeration<T> implements Iterable<T> {
 				return IterableEnumeration.this.enumeration.nextElement();
 			}
 
+			@Override
+			public void remove() {
+				throw new UnsupportedOperationException();
+			}
+
 		};
 	}