Test fixes

Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/module/TreeManager.java

@@ -4,9 +4,9 @@
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
- * 
+ *
  *      http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -195,6 +195,10 @@ public class TreeManager implements ManagerDB {
 	 */
 	public String[] getTreeNames() {
 		String[] names = new String[treeMap.size()];
+		if (names.length == 0) {
+			return names;
+		}
+
 		try {
 			RecordIterator iter = treeAdapter.getRecords();
 

Ghidra/Framework/SoftwareModeling/src/test/java/ghidra/program/model/symbol/StubSymbol.java

@@ -37,6 +37,7 @@ public class StubSymbol implements Symbol {
 
 	public StubSymbol(String name) {
 		this.name = name;
+		id = nextId++;
 	}
 
 	public StubSymbol(String name, Address address) {