ZOOKEEPER-3938: Upgrade JLine to 3.25.1

Reviewers: anmolnar
Author: PDavid
Closes #2322 from PDavid/ZOOKEEPER-3938-jline-upgrade-branch-3.9

Author: PDavid

pom.xml

@@ -562,7 +562,7 @@
     <netty.version>4.1.127.Final</netty.version>
     <jetty.version>9.4.57.v20241219</jetty.version>
     <jackson.version>2.15.2</jackson.version>
-    <jline.version>2.14.6</jline.version>
+    <jline.version>3.25.1</jline.version>
     <snappy.version>1.1.10.5</snappy.version>
     <kerby.version>2.0.0</kerby.version>
     <bouncycastle.version>1.75</bouncycastle.version>
@@ -742,7 +742,7 @@
         <version>${jackson.version}</version>
       </dependency>
       <dependency>
-        <groupId>jline</groupId>
+        <groupId>org.jline</groupId>
         <artifactId>jline</artifactId>
         <version>${jline.version}</version>
       </dependency>

zookeeper-assembly/pom.xml

@@ -100,7 +100,7 @@
       <artifactId>jackson-databind</artifactId>
     </dependency>
     <dependency>
-      <groupId>jline</groupId>
+      <groupId>org.jline</groupId>
       <artifactId>jline</artifactId>
     </dependency>
     <dependency>

zookeeper-contrib/zookeeper-contrib-fatjar/pom.xml

@@ -79,7 +79,7 @@
       <artifactId>jackson-databind</artifactId>
     </dependency>
     <dependency>
-      <groupId>jline</groupId>
+      <groupId>org.jline</groupId>
       <artifactId>jline</artifactId>
     </dependency>
     <dependency>

zookeeper-server/pom.xml

@@ -116,7 +116,7 @@
       <scope>test</scope>
     </dependency>
     <dependency>
-      <groupId>jline</groupId>
+      <groupId>org.jline</groupId>
       <artifactId>jline</artifactId>
       <scope>provided</scope>
     </dependency>

zookeeper-server/src/main/java/org/apache/zookeeper/JLineZNodeCompleter.java

@@ -20,44 +20,41 @@
 
 import java.util.Collections;
 import java.util.List;
-import jline.console.completer.Completer;
+import org.jline.reader.Candidate;
+import org.jline.reader.Completer;
+import org.jline.reader.LineReader;
+import org.jline.reader.ParsedLine;
+import org.jline.utils.AttributedString;
 
 class JLineZNodeCompleter implements Completer {
 
-    private ZooKeeper zk;
+    private final ZooKeeper zk;
 
     public JLineZNodeCompleter(ZooKeeper zk) {
         this.zk = zk;
     }
 
-    @SuppressWarnings({"unchecked", "rawtypes"})
-    public int complete(String buffer, int cursor, List candidates) {
+    @Override
+    public void complete(LineReader lineReader, ParsedLine commandLine, List<Candidate> candidates) {
         // Guarantee that the final token is the one we're expanding
-        buffer = buffer.substring(0, cursor);
-        String token = "";
-        if (!buffer.endsWith(" ")) {
-            String[] tokens = buffer.split(" ");
-            if (tokens.length != 0) {
-                token = tokens[tokens.length - 1];
-            }
-        }
+        String token = commandLine.words().get(commandLine.words().size() - 1);
 
         if (token.startsWith("/")) {
-            return completeZNode(buffer, token, candidates);
+            completeZNode(token, candidates);
+        } else {
+            completeCommand(token, candidates);
         }
-        return completeCommand(buffer, token, candidates);
     }
 
-    private int completeCommand(String buffer, String token, List<String> candidates) {
+    private void completeCommand(String token, List<Candidate> candidates) {
         for (String cmd : ZooKeeperMain.getCommands()) {
             if (cmd.startsWith(token)) {
-                candidates.add(cmd);
+                candidates.add(createCandidate(cmd));
             }
         }
-        return buffer.lastIndexOf(" ") + 1;
     }
 
-    private int completeZNode(String buffer, String token, List<String> candidates) {
+    private void completeZNode(String token, List<Candidate> candidates) {
         String path = token;
         int idx = path.lastIndexOf("/") + 1;
         String prefix = path.substring(idx);
@@ -67,16 +64,17 @@ private int completeZNode(String buffer, String token, List<String> candidates)
             List<String> children = zk.getChildren(dir, false);
             for (String child : children) {
                 if (child.startsWith(prefix)) {
-                    candidates.add(child);
+                    String zNode = dir + (idx == 1 ? "" : "/") + child;
+                    candidates.add(createCandidate(zNode));
                 }
             }
-        } catch (InterruptedException e) {
-            return 0;
-        } catch (KeeperException e) {
-            return 0;
+        } catch (InterruptedException | KeeperException e) {
+            return;
         }
         Collections.sort(candidates);
-        return candidates.size() == 0 ? buffer.length() : buffer.lastIndexOf("/") + 1;
     }
 
+    private static Candidate createCandidate(String cmd) {
+        return new Candidate(AttributedString.stripAnsi(cmd), cmd, null, null, null, null, true);
+    }
 }

zookeeper-server/src/main/java/org/apache/zookeeper/ZooKeeperMain.java

@@ -311,20 +311,18 @@ void run() throws IOException, InterruptedException {
             boolean jlinemissing = false;
             // only use jline if it's in the classpath
             try {
-                Class<?> consoleC = Class.forName("jline.console.ConsoleReader");
-                Class<?> completorC = Class.forName("org.apache.zookeeper.JLineZNodeCompleter");
+                Class<?> readerC = Class.forName("org.jline.reader.LineReader");
+                Class<?> completerC = Class.forName("org.apache.zookeeper.JLineZNodeCompleter");
 
                 System.out.println("JLine support is enabled");
 
-                Object console = consoleC.getConstructor().newInstance();
-
-                Object completor = completorC.getConstructor(ZooKeeper.class).newInstance(zk);
-                Method addCompletor = consoleC.getMethod("addCompleter", Class.forName("jline.console.completer.Completer"));
-                addCompletor.invoke(console, completor);
+                Object completer = completerC.getConstructor(ZooKeeper.class).newInstance(zk);
+                Object terminal = createTerminal();
+                Object reader = createLineReader(terminal, completer);
 
                 String line;
-                Method readLine = consoleC.getMethod("readLine", String.class);
-                while ((line = (String) readLine.invoke(console, getPrompt())) != null) {
+                Method readLine = readerC.getMethod("readLine", String.class);
+                while ((line = (String) readLine.invoke(reader, getPrompt())) != null) {
                     executeLine(line);
                 }
             } catch (ClassNotFoundException
@@ -353,6 +351,26 @@ void run() throws IOException, InterruptedException {
         ServiceUtils.requestSystemExit(exitCode);
     }
 
+    private static Object createTerminal() throws ClassNotFoundException, NoSuchMethodException, IllegalAccessException, InvocationTargetException {
+        Class<?> terminalBuilderC = Class.forName("org.jline.terminal.TerminalBuilder");
+        Method terminalBuilderMethod = terminalBuilderC.getMethod("builder");
+        Object terminalBuilder = terminalBuilderMethod.invoke(null);
+        Method terminalBuildMethod = terminalBuilderC.getMethod("build");
+        return terminalBuildMethod.invoke(terminalBuilder);
+    }
+
+    private static Object createLineReader(Object terminal, Object completer) throws ClassNotFoundException, NoSuchMethodException, IllegalAccessException, InvocationTargetException {
+        Class<?> readerBuilderC = Class.forName("org.jline.reader.LineReaderBuilder");
+        Method readerBuilderMethod = readerBuilderC.getMethod("builder");
+        Object readerBuilder = readerBuilderMethod.invoke(null);
+        Method setTerminalMethod = readerBuilderC.getMethod("terminal", Class.forName("org.jline.terminal.Terminal"));
+        setTerminalMethod.invoke(readerBuilder, terminal);
+        Method setCompleterMethod = readerBuilderC.getMethod("completer", Class.forName("org.jline.reader.Completer"));
+        setCompleterMethod.invoke(readerBuilder, completer);
+        Method readerBuildMethod = readerBuilderC.getMethod("build");
+        return readerBuildMethod.invoke(readerBuilder);
+    }
+
     public void executeLine(String line) throws InterruptedException, IOException {
         if (!line.equals("")) {
             cl.parseCommand(line);

zookeeper-server/src/main/resources/LICENSE.txt

@@ -206,9 +206,9 @@ This distribution bundles javacc, which is available under the
 3-clause BSD License. For details, see a copy of the license in
 lib/javacc.LICENSE.txt
 
-This distribution bundles jline 2.14.6, which is available under the
-2-clause BSD License. For details, see a copy of the license in
-lib/jline-2.14.6.LICENSE.txt
+This distribution bundles jline 3.25.1, which is available under the
+3-clause BSD License. For details, see a copy of the license in
+lib/jline-3.25.1.LICENSE.txt
 
 This distribution bundles SLF4J 1.7.30, which is available under the MIT
 License. For details, see a copy of the license in

zookeeper-server/src/main/resources/lib/jline-2.14.6.LICENSE.txt renamed to zookeeper-server/src/main/resources/lib/jline-3.25.1.LICENSE.txt

@@ -1,7 +1,7 @@
-Copyright (c) 2002-2012, the original author or authors.
+Copyright (c) 2002-2023, the original author or authors.
 All rights reserved.
 
-http://www.opensource.org/licenses/bsd-license.php
+https://opensource.org/licenses/BSD-3-Clause
 
 Redistribution and use in source and binary forms, with or
 without modification, are permitted provided that the following
@@ -31,5 +31,4 @@ DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
-OF THE POSSIBILITY OF SUCH DAMAGE.
-
+OF THE POSSIBILITY OF SUCH DAMAGE.

zookeeper-server/src/test/java/org/apache/zookeeper/server/ClientSSLReloadTest.java

@@ -25,7 +25,6 @@
 import java.util.Properties;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.TimeUnit;
-import jline.internal.Log;
 import org.apache.commons.io.FileUtils;
 import org.apache.zookeeper.PortAssignment;
 import org.apache.zookeeper.WatchedEvent;
@@ -144,7 +143,7 @@ public void certficateReloadTest() throws Exception {
                 assertTrue(l.await(10, TimeUnit.SECONDS));
             }
 
-            Log.info("Updating keyStore & trustStore files !!!!");
+            LOG.info("Updating keyStore & trustStore files !!!!");
             // Update the keyStoreFile1 and trustStoreFile1 files in the filesystem with keyStoreFile2 & trustStoreFile2
             FileUtils.writeStringToFile(keyStoreFile1, FileUtils.readFileToString(keyStoreFile2, StandardCharsets.US_ASCII), StandardCharsets.US_ASCII, false);
             FileUtils.writeStringToFile(trustStoreFile1, FileUtils.readFileToString(trustStoreFile2, StandardCharsets.US_ASCII), StandardCharsets.US_ASCII, false);