[ java ] Add java's benchmark

Author: ice1000

build.gradle

@@ -16,8 +16,8 @@ apply plugin: 'java'
 apply plugin: 'kotlin'
 apply plugin: 'jacoco'
 
-sourceCompatibility = 1.6
-targetCompatibility = 1.6
+sourceCompatibility = 1.8
+targetCompatibility = 1.8
 
 repositories {
 	mavenCentral()

src/test/java/org/lice/LiceBenchmarkJava.java

@@ -0,0 +1,39 @@
+package org.lice;
+
+import org.junit.Test;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.function.Consumer;
+import java.util.function.IntConsumer;
+import java.util.function.ObjIntConsumer;
+
+public class LiceBenchmarkJava {
+	private Map<String, Object> map = new HashMap<>();
+
+	private interface TripleFunction<A, B, C, D> {
+		D fun(A a, B b, C c);
+	}
+
+	private void java() {
+		TripleFunction<String, Object, Consumer<Map<String, Object>>, Void> function = (name, value, mapConsumer) -> {
+			map.put(name, value);
+			mapConsumer.accept(map);
+			map.remove(name);
+			return null;
+		};
+		function.fun("reimu", 100, it -> Integer.valueOf(233 + ((Integer) it.get("reimu"))));
+	}
+
+	@Test
+	public void main() {
+		ObjIntConsumer<IntConsumer> loop = (f, count) -> {
+			int i = 0;
+			while (i < count) {
+				f.accept(i);
+				i = i + 1;
+			}
+		};
+		loop.accept(i -> java(), Benchmark.cnt);
+	}
+}