convert to java

Author: zeitlinger

javaagent-tooling/src/test/java/io/opentelemetry/javaagent/tooling/bytebuddy/matcher/ThrowOnFirstElement.java

@@ -8,15 +8,15 @@
 import java.util.Iterator;
 
 public class ThrowOnFirstElement implements Iterator<Object> {
+  private int current = 0;
+
   @Override
   public boolean hasNext() {
-    return i++ < 1;
+    return current++ < 1;
   }
 
   @Override
   public Object next() {
     throw new RuntimeException("iteration exception");
   }
-
-  private int i = 0;
 }