OAK-11382 : removed usage of Guava's Maps.toMap

Author: Rishabh Kumar

oak-security-spi/src/test/java/org/apache/jackrabbit/oak/spi/security/principal/TestPrincipalProvider.java

@@ -21,15 +21,14 @@
 import java.util.Enumeration;
 import java.util.HashSet;
 import java.util.Iterator;
+import java.util.LinkedHashMap;
 import java.util.LinkedHashSet;
 import java.util.Map;
 import java.util.Set;
 import java.util.function.Predicate;
 
 import org.apache.jackrabbit.guava.common.collect.Iterables;
 import org.apache.jackrabbit.guava.common.collect.Iterators;
-import org.apache.jackrabbit.guava.common.collect.Maps;
-
 import org.apache.jackrabbit.api.security.principal.GroupPrincipal;
 import org.apache.jackrabbit.api.security.principal.ItemBasedPrincipal;
 import org.apache.jackrabbit.api.security.principal.PrincipalManager;
@@ -55,18 +54,20 @@ public TestPrincipalProvider(boolean exposesEveryone) {
 
     public TestPrincipalProvider(String... principalNames) {
         this.exposesEveryone = true;
-        this.principals = Maps.toMap(CollectionUtils.toLinkedSet(Arrays.asList(principalNames)), input -> new ItemBasedPrincipal() {
-            @NotNull
-            @Override
-            public String getPath() {
-                return "/path/to/principal/" + input;
-            }
-
-            @Override
-            public String getName() {
-                return input;
-            }
-        });
+        this.principals = CollectionUtils.toLinkedSet(Arrays.asList(principalNames))
+                .stream() // using LinkedHashMap to maintain the order of LinkedSet
+                .collect(LinkedHashMap::new, (m, e)-> m.put(e, new ItemBasedPrincipal() {
+                    @NotNull
+                    @Override
+                    public String getPath() {
+                        return "/path/to/principal/" + e;
+                    }
+
+                    @Override
+                    public String getName() {
+                        return e;
+                    }
+                }), LinkedHashMap::putAll);
     }
 
     public Iterable<Principal> getTestPrincipals() {