Cleanup some test warnings and deprecated code

src/main/java/hudson/remoting/FileSystemJarCache.java

@@ -58,7 +58,7 @@ public FileSystemJarCache(@Nonnull File rootDir, boolean touch) {
             throw new IllegalArgumentException("Root directory is null");
 
         try {
-            Util.mkdirs(rootDir);
+            Files.createDirectories(rootDir.toPath());
         } catch (IOException ex) {
             throw new IllegalArgumentException("Root directory not writable: " + rootDir, ex);
         }
@@ -175,7 +175,7 @@ private Checksum fileChecksum(File file) throws IOException {
     @SuppressFBWarnings(value = "PATH_TRAVERSAL_IN", justification = "This path exists within a temp directory so the potential traversal is limited.")
     /*package for testing*/ File createTempJar(@Nonnull File target) throws IOException {
         File parent = target.getParentFile();
-        Util.mkdirs(parent);
+        Files.createDirectories(parent.toPath());
         return File.createTempFile(target.getName(), "tmp", parent);
     }
 

src/main/java/org/jenkinsci/remoting/util/KeyUtils.java

@@ -28,7 +28,6 @@
 import java.security.Key;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
-import java.util.Arrays;
 import javax.annotation.CheckForNull;
 import javax.annotation.Nonnull;
 

src/test/java/JarCertDump.java

@@ -13,13 +13,14 @@
  */
 public class JarCertDump {
     public static void main(String[] args) throws IOException {
-        JarFile j = new JarFile(new File(args[0]));
-        JarEntry je = j.getJarEntry("hudson/remoting/Channel.class");
-        if (je==null)   throw new IllegalArgumentException();
-        IOUtils.readLines(j.getInputStream(je));
-        for (Certificate c : je.getCertificates()) {
-            System.out.println("################# Certificate #################");
-            System.out.println(c);
+        try (JarFile j = new JarFile(new File(args[0]))) {
+            JarEntry je = j.getJarEntry("hudson/remoting/Channel.class");
+            if (je==null)   throw new IllegalArgumentException();
+            IOUtils.readLines(j.getInputStream(je));
+            for (Certificate c : je.getCertificates()) {
+                System.out.println("################# Certificate #################");
+                System.out.println(c);
+            }
         }
     }
 }

src/test/java/hudson/remoting/CallableBase.java

@@ -13,4 +13,5 @@ public void checkRoles(RoleChecker checker) throws SecurityException {
     }
 
     public static final Role ROLE = new Role("test callable");
+    private static final long serialVersionUID = 1L;
 }

src/test/java/hudson/remoting/ChannelFilterTest.java

@@ -43,6 +43,7 @@ public CallableCallable(Callable c) {
         public Object call() throws Exception {
            return c.call();
         }
+        private static final long serialVersionUID = 1L;
     }
 
     public void testBlacklisting() throws Exception {
@@ -91,11 +92,13 @@ static class GunImporter extends CallableBase<String,IOException> implements Sha
         public String call() {
             return "gun";
         }
+        private static final long serialVersionUID = 1L;
     }
 
     static class ReverseGunImporter extends CallableBase<String, Exception> {
         public String call() throws Exception {
             return Channel.currentOrFail().call(new GunImporter());
         }
+        private static final long serialVersionUID = 1L;
     }
 }

src/test/java/hudson/remoting/ChannelTest.java

@@ -19,8 +19,6 @@
 import java.util.logging.Level;
 import java.util.logging.Logger;
 import javax.annotation.Nonnull;
-import static junit.framework.TestCase.assertFalse;
-import static junit.framework.TestCase.assertTrue;
 
 import org.jenkinsci.remoting.RoleChecker;
 import org.jvnet.hudson.test.Issue;
@@ -53,6 +51,7 @@ public Object call() throws IOException {
         private void readObject(ObjectInputStream ois) throws IOException, ClassNotFoundException {
             throw new ClassCastException("foobar");
         }
+        private static final long serialVersionUID = 1L;
     }
 
     /**
@@ -130,6 +129,7 @@ public Void call() throws Exception {
             getChannelOrFail().setProperty("foo","bar");
             return null;
         }
+        private static final long serialVersionUID = 1L;
     }
 
     public interface Greeter {
@@ -158,6 +158,7 @@ public Object call() throws IOException {
             g.greet("Kohsuke");
             return null;
         }
+        private static final long serialVersionUID = 1L;
     }
 
 
@@ -177,6 +178,7 @@ private static class Echo<T> extends CallableBase<T,RuntimeException> {
         public T call() throws RuntimeException {
             return t;
         }
+        private static final long serialVersionUID = 1L;
     }
 
     @Bug(39150)
@@ -221,6 +223,7 @@ private static class ThrowingCallable extends CallableBase<Void, IOException> {
         @Override public Void call() throws IOException {
             throw new IOException("Node Nested", new RuntimeException("Node says hello!"));
         }
+        private static final long serialVersionUID = 1L;
     }
 
     /**
@@ -294,6 +297,7 @@ public TInterface call() throws Exception {
         public void checkRoles(RoleChecker checker) throws SecurityException {
 
         }
+        private static final long serialVersionUID = 1L;
     }
 
     private static final class NeverEverCallable implements Callable<Void, Exception> {

src/test/java/hudson/remoting/ChecksumTest.java

@@ -10,11 +10,9 @@
 import java.io.ByteArrayInputStream;
 import java.io.DataInputStream;
 import java.io.File;
-import java.nio.charset.Charset;
 import java.nio.charset.StandardCharsets;
 
 import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertNotEquals;
 
 /**

src/test/java/hudson/remoting/ClassFilterTest.java

@@ -266,6 +266,7 @@ protected void execute(Channel channel) {
         public String toString() {
             return "Security218";
         }
+        private static final long serialVersionUID = 1L;
     }
 
     private String getAttack() {
@@ -288,5 +289,7 @@ public Void call() throws IOException {
             a.toString();   // this will ensure 'a' gets sent over
             return null;
         }
+        private static final long serialVersionUID = 1L;
     }
+    private static final long serialVersionUID = 1L;
 }

src/test/java/hudson/remoting/DeadRemoteOutputStreamTest.java

@@ -56,5 +56,7 @@ public Void call() throws Exception {
             }
             return null;
         }
+        private static final long serialVersionUID = 1L;
     }
+    private static final long serialVersionUID = 1L;
 }

src/test/java/hudson/remoting/DiagnosedStreamCorruptionExceptionTest.java

@@ -56,8 +56,9 @@ private void verify(ClassicCommandTransport ct) throws IOException, ClassNotFoun
     @Test(timeout=3000)
     public void blockingStreamShouldNotPreventDiagnosis() throws Exception {
         FastPipedInputStream in = new FastPipedInputStream();
-        FastPipedOutputStream out = new FastPipedOutputStream(in);
-        out.write(payload);
+        try (FastPipedOutputStream out = new FastPipedOutputStream(in)) {
+            out.write(payload);
+        }
 
         ClassicCommandTransport ct = (ClassicCommandTransport)
                 new ChannelBuilder("dummy",null)

src/test/java/hudson/remoting/NoProxyEvaluatorTest.java

@@ -1,6 +1,5 @@
 package hudson.remoting;
 
-import org.junit.Ignore;
 import org.junit.Test;
 
 import static org.junit.Assert.*;

src/test/java/hudson/remoting/NonSerializableExceptionTest.java

@@ -49,16 +49,19 @@ public void test1() throws Throwable {
     }
 
     private static final class NoneSerializableException extends Exception {
+        @SuppressWarnings("unused")
         private final Object o = new Object(); // this is not serializable
 
         private NoneSerializableException(String msg, Throwable cause) {
             super(msg, cause);
         }
+        private static final long serialVersionUID = 1L;
     }
 
-    private static final class Failure extends CallableBase {
+    private static final class Failure extends CallableBase<Object, Throwable> {
         public Object call() throws Throwable {
             throw new NoneSerializableException("message1",new SocketException("message2"));
         }
+        private static final long serialVersionUID = 1L;
     }
 }

src/test/java/hudson/remoting/PipeTest.java

@@ -99,6 +99,7 @@ public Void call() throws Exception {
                 Thread.sleep(10);
             }
         }
+        private static final long serialVersionUID = 1L;
     }
 
     private static class WritingCallable extends CallableBase<Integer, IOException> {
@@ -112,6 +113,7 @@ public Integer call() throws IOException {
             write(pipe);
             return 5;
         }
+        private static final long serialVersionUID = 1L;
     }
 
     /**
@@ -212,6 +214,7 @@ public void readRest() throws IOException {
                 }
             });
         }
+        private static final long serialVersionUID = 1L;
     }
 
     private static class ReadingCallable extends CallableBase<Integer, IOException> {
@@ -230,7 +233,7 @@ public Integer call() throws IOException {
             }
             return 5;
         }
-
+        private static final long serialVersionUID = 1L;
     }
 
     private static void write(Pipe pipe) throws IOException {
@@ -281,7 +284,7 @@ private static class DevNullSink extends CallableBase<OutputStream, IOException>
         public OutputStream call() throws IOException {
             return new RemoteOutputStream(new NullOutputStream());
         }
-
+        private static final long serialVersionUID = 1L;
     }
 
     public static Test suite() throws Exception {
@@ -304,5 +307,7 @@ public Integer call() throws IOException {
             IOUtils.copy(p.getIn(), baos);
             return baos.size();
         }
+        private static final long serialVersionUID = 1L;
     }
+    private static final long serialVersionUID = 1L;
 }

src/test/java/hudson/remoting/PipeWriterTest.java

@@ -68,6 +68,7 @@ public void run() {
          * This is where the actual I/O happens.
          */
         abstract void touch() throws IOException;
+        private static final long serialVersionUID = 1L;
     }
 
     /**
@@ -116,6 +117,7 @@ public Object call() throws IOException {
          * This is where the actual I/O happens.
          */
         abstract void touch() throws IOException;
+        private static final long serialVersionUID = 1L;
     }
 
     public void testRequestIoCoord() throws Exception {
@@ -180,35 +182,42 @@ private class ResponseCallableWriter extends ResponseIoCoordCallable {
         void touch() throws IOException {
             ros.write(0);
         }
+        private static final long serialVersionUID = 1L;
     }
 
     private class ResponseCallableFlusher extends ResponseIoCoordCallable {
         void touch() throws IOException {
             ros.flush();
         }
+        private static final long serialVersionUID = 1L;
     }
 
     private class ResponseCallableCloser extends ResponseIoCoordCallable {
         void touch() throws IOException {
             ros.close();
         }
+        private static final long serialVersionUID = 1L;
     }
 
     private class RequestCallableWriter extends RequestIoCoordCallable {
         void touch() throws IOException {
             ros.write(0);
         }
+        private static final long serialVersionUID = 1L;
     }
 
     private class RequestCallableFlusher extends RequestIoCoordCallable {
         void touch() throws IOException {
             ros.flush();
         }
+        private static final long serialVersionUID = 1L;
     }
 
     private class RequestCallableCloser extends RequestIoCoordCallable {
         void touch() throws IOException {
             ros.close();
         }
+        private static final long serialVersionUID = 1L;
     }
+    private static final long serialVersionUID = 1L;
 }

src/test/java/hudson/remoting/PrefetchTest.java

@@ -45,5 +45,6 @@ public String call() throws IOException {
             StackMapAttribute sma = new StackMapAttribute();
             return Which.jarFile(sma.getClass()).getPath();
         }
+        private static final long serialVersionUID = 1L;
     }
 }

src/test/java/hudson/remoting/PrefetchingTest.java

@@ -1,4 +1,4 @@
-    package hudson.remoting;
+package hudson.remoting;
 
 import com.google.common.base.Function;
 import com.google.common.base.Predicate;
@@ -107,6 +107,7 @@ public Object apply(Object o) {
                 throw new Error(e);
             }
         }
+        private static final long serialVersionUID = 1L;
     }
 
     public void testGetResource() throws Exception {
@@ -201,6 +202,7 @@ private static final class Echo<V> extends CallableBase<V,IOException> implement
         public V call() throws IOException {
             return value;
         }
+        private static final long serialVersionUID = 1L;
     }
 
     /**
@@ -229,12 +231,15 @@ public Void call() throws IOException {
                 throw new IOException(e);
             }
         }
+        private static final long serialVersionUID = 1L;
     }
 
     private class JarCacherCallable extends CallableBase<Void, IOException> {
         public Void call() throws IOException {
             Channel.currentOrFail().setJarCache(new FileSystemJarCache(dir, true));
             return null;
         }
+        private static final long serialVersionUID = 1L;
     }
+    private static final long serialVersionUID = 1L;
 }

src/test/java/hudson/remoting/ProxyWriterTest.java

@@ -1,7 +1,6 @@
 package hudson.remoting;
 
 import junit.framework.Test;
-import org.junit.Assume;
 import org.jvnet.hudson.test.Bug;
 
 import java.io.ByteArrayOutputStream;
@@ -146,6 +145,7 @@ public Void call() throws IOException {
             writeBunchOfData(w);
             return null;
         }
+        private static final long serialVersionUID = 1L;
     }
 
     private static class WeakReferenceCallable extends CallableBase<Void, IOException> {
@@ -167,6 +167,7 @@ public Boolean call() throws IOException {
             System.gc();
             return W.get() == null;
         }
+        private static final long serialVersionUID = 1L;
     }
 
     private static class WriterCallable extends CallableBase<Void, IOException> {
@@ -180,5 +181,7 @@ public Void call() throws IOException {
             w.write("1--", 0, 1);
             return null;
         }
+        private static final long serialVersionUID = 1L;
     }
+    private static final long serialVersionUID = 1L;
 }