From 01529c3202c9750a900380eb1fc2f289182fb1a0 Mon Sep 17 00:00:00 2001
From: alincojanu <alincojanu@users.noreply.github.com>
Date: Sat, 2 Sep 2017 20:38:04 +0300
Subject: [PATCH] sneaky throws (#2505)

* alin.cojanu25@gmail.com

* add junit tests

* core-java - sneaky throws

* delete project spring_sample_annotations and spring_sample_xml ->not intended for this article
---
 .../baeldung/sneakythrows/SneakyRunnable.java | 23 +++++++++++++++++
 .../baeldung/sneakythrows/SneakyThrows.java   | 25 +++++++++++++++++++
 .../sneakythrows/SneakyRunnableTest.java      | 17 +++++++++++++
 .../sneakythrows/SneakyThrowsTest.java        | 18 +++++++++++++
 4 files changed, 83 insertions(+)
 create mode 100644 core-java/src/main/java/com/baeldung/sneakythrows/SneakyRunnable.java
 create mode 100644 core-java/src/main/java/com/baeldung/sneakythrows/SneakyThrows.java
 create mode 100644 core-java/src/test/java/com/baeldung/sneakythrows/SneakyRunnableTest.java
 create mode 100644 core-java/src/test/java/com/baeldung/sneakythrows/SneakyThrowsTest.java

diff --git a/core-java/src/main/java/com/baeldung/sneakythrows/SneakyRunnable.java b/core-java/src/main/java/com/baeldung/sneakythrows/SneakyRunnable.java
new file mode 100644
index 0000000000..88a8696053
--- /dev/null
+++ b/core-java/src/main/java/com/baeldung/sneakythrows/SneakyRunnable.java
@@ -0,0 +1,23 @@
+package com.baeldung.sneakythrows;
+
+import lombok.SneakyThrows;
+
+public class SneakyRunnable implements Runnable {
+
+    @SneakyThrows
+    public void run() {
+        try {
+            throw new InterruptedException();
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+    }
+
+    public static void main(String[] args) {
+        try {
+            new SneakyRunnable().run();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+}
diff --git a/core-java/src/main/java/com/baeldung/sneakythrows/SneakyThrows.java b/core-java/src/main/java/com/baeldung/sneakythrows/SneakyThrows.java
new file mode 100644
index 0000000000..847aaa7249
--- /dev/null
+++ b/core-java/src/main/java/com/baeldung/sneakythrows/SneakyThrows.java
@@ -0,0 +1,25 @@
+package com.baeldung.sneakythrows;
+
+import java.io.IOException;
+
+public class SneakyThrows {
+
+
+    public static <E extends Throwable> void sneakyThrow(Throwable e) throws E {
+        throw (E) e;
+    }
+
+    public static void throwsSneakyIOException() {
+        sneakyThrow(new IOException("sneaky"));
+    }
+
+
+    public static void main(String[] args) {
+        try {
+            throwsSneakyIOException();
+        } catch (Exception ex) {
+            ex.printStackTrace();
+        }
+
+    }
+}
diff --git a/core-java/src/test/java/com/baeldung/sneakythrows/SneakyRunnableTest.java b/core-java/src/test/java/com/baeldung/sneakythrows/SneakyRunnableTest.java
new file mode 100644
index 0000000000..cd31f545b9
--- /dev/null
+++ b/core-java/src/test/java/com/baeldung/sneakythrows/SneakyRunnableTest.java
@@ -0,0 +1,17 @@
+package com.baeldung.sneakythrows;
+
+import org.junit.Test;
+
+import static junit.framework.TestCase.assertEquals;
+
+public class SneakyRunnableTest {
+
+    @Test
+    public void whenCallSneakyRunnableMethod_thenThrowException() {
+        try {
+            new SneakyRunnable().run();
+        } catch (Exception e) {
+            assertEquals(InterruptedException.class, e.getStackTrace());
+        }
+    }
+}
diff --git a/core-java/src/test/java/com/baeldung/sneakythrows/SneakyThrowsTest.java b/core-java/src/test/java/com/baeldung/sneakythrows/SneakyThrowsTest.java
new file mode 100644
index 0000000000..e033ca062d
--- /dev/null
+++ b/core-java/src/test/java/com/baeldung/sneakythrows/SneakyThrowsTest.java
@@ -0,0 +1,18 @@
+package com.baeldung.sneakythrows;
+
+import org.junit.Test;
+
+import static junit.framework.TestCase.assertEquals;
+
+public class SneakyThrowsTest {
+
+    @Test
+    public void whenCallSneakyMethod_thenThrowSneakyException() {
+        try {
+            SneakyThrows.throwsSneakyIOException();
+        } catch (Exception ex) {
+            assertEquals("sneaky", ex.getMessage().toString());
+        }
+    }
+
+}