[FIXED JENKINS-46754] Remove org.mindrot:jbcrypt:0.4 since we already bundle...

[FIXED JENKINS-46754] Remove org.mindrot:jbcrypt:0.4 since we already bundle org.connectbot.jbcrypt:jbcrypt:1.0.0.

(cherry picked from commit 1784f908)

core/pom.xml

@@ -590,12 +590,6 @@ THE SOFTWARE.
       <version>1.3.1-jenkins-1</version>
     </dependency>
 
-    <dependency>
-      <groupId>org.mindrot</groupId>
-      <artifactId>jbcrypt</artifactId>
-      <version>0.4</version>
-    </dependency>
-
     <!-- offline profiler API to put in the classpath if we need it -->
     <!--dependency>
       <groupId>com.yourkit.api</groupId>

test/src/test/java/jenkins/ClassPathTest.java

+/*
+ * The MIT License
+ *
+ * Copyright 2017 CloudBees, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+package jenkins;
+
+import com.google.common.collect.Iterators;
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.TreeMap;
+import java.util.jar.JarFile;
+import org.junit.Ignore;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ErrorCollector;
+import org.jvnet.hudson.test.Issue;
+import org.jvnet.hudson.test.WarExploder;
+
+public class ClassPathTest {
+
+    @Rule
+    public ErrorCollector errors = new ErrorCollector();
+
+    @Ignore("TODO too many failures to solve them all now")
+    @Issue("JENKINS-46754")
+    @Test
+    public void uniqueness() throws Exception {
+        Map<String, List<String>> entries = new TreeMap<>();
+        for (File jar : new File(WarExploder.getExplodedDir(), "WEB-INF/lib").listFiles((dir, name) -> name.endsWith(".jar"))) {
+            String jarname = jar.getName();
+            try (JarFile jf = new JarFile(jar)) {
+                Iterators.forEnumeration(jf.entries()).forEachRemaining(e -> {
+                    String name = e.getName();
+                    if (name.startsWith("META-INF/") || name.endsWith("/") || !name.contains("/")) {
+                        return;
+                    }
+                    entries.computeIfAbsent(name, k -> new ArrayList<>()).add(jarname);
+                });
+            }
+        }
+        entries.forEach((name, jarnames) -> {
+            if (jarnames.size() > 1) { // Matchers.hasSize unfortunately does not display the collection
+                errors.addError(new AssertionError(name + " duplicated in " + jarnames));
+            }
+        });
+    }
+
+}