add safeIterable

2025-12-12 15:36:08 +08:00
parent 90366671d1
commit 50c9a416a6
1 changed files with 5 additions and 0 deletions
--- a/src/main/java/com/imyeyu/java/TimiJava.java
+++ b/src/main/java/com/imyeyu/java/TimiJava.java
@ -3,6 +3,7 @@ package com.imyeyu.java;
 import java.io.PrintWriter;
 import java.io.StringWriter;
 import java.util.Collection;
+import java.util.Collections;
 import java.util.Map;

 /**
@ -94,4 +95,8 @@ public interface TimiJava {
 		e.printStackTrace(pw);
 		return sw.toString();
 	}
+
+	static <T> Iterable<T> safeIterable(Iterable<T> iterable) {
+		return firstNotNull(iterable, Collections::emptyIterator);
+	}
 }