AutoCloseable のテスト

CloseTest.java

public class CloseTest {
    public static void main(String... args) {
         try (TestResource rs = new TestResource()){
            System.out.println("try:start");
            throw(new Exception());
        } catch (Exception e) {
            System.out.println("catch:start");
            e.printStackTrace();
            System.out.println("catch:end");
        } finally {
            System.out.println("finally:");
        }
    }
}

result.txt

try:start
close was called
catch:start
catch:end
finally:
java.lang.Exception
	at closeable.CloseTest.main(CloseTest.java:9)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:601)
	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)

TestResource.java

public class TestResource implements AutoCloseable{
    @Override
    public void close() throws Exception {
        System.out.println("close was called");
    }
}