diff --git a/pom.xml b/pom.xml
old mode 100755
new mode 100644
index 9a05e3a784..773b0da7e8
--- a/pom.xml
+++ b/pom.xml
@@ -81,7 +81,7 @@
                                 <configuration>
                                     <target>
                                         <ant target="run" antfile="${basedir}/src/config/build.xml">
-                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath" />
+                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath"/>
                                         </ant>
                                     </target>
                                 </configuration>
@@ -95,7 +95,7 @@
                                 <configuration>
                                     <target>
                                         <ant target="databaseServer" antfile="${basedir}/src/config/build.xml">
-                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath" />
+                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath"/>
                                         </ant>
                                     </target>
                                 </configuration>
@@ -109,7 +109,7 @@
                                 <configuration>
                                     <target>
                                         <ant target="databaseInit" antfile="${basedir}/src/config/build.xml">
-                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath" />
+                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath"/>
                                         </ant>
                                     </target>
                                 </configuration>
@@ -187,7 +187,7 @@
                                 <configuration>
                                     <target>
                                         <ant target="run" antfile="${basedir}/src/config/build.xml">
-                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath" />
+                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath"/>
                                         </ant>
                                     </target>
                                 </configuration>
@@ -201,7 +201,7 @@
                                 <configuration>
                                     <target>
                                         <ant target="databaseServer" antfile="${basedir}/src/config/build.xml">
-                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath" />
+                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath"/>
                                         </ant>
                                     </target>
                                 </configuration>
@@ -215,7 +215,7 @@
                                 <configuration>
                                     <target>
                                         <ant target="databaseInit" antfile="${basedir}/src/config/build.xml">
-                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath" />
+                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath"/>
                                         </ant>
                                     </target>
                                 </configuration>
@@ -300,7 +300,7 @@
                                 <configuration>
                                     <target>
                                         <ant target="run" antfile="${basedir}/src/config/build.xml">
-                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath" />
+                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath"/>
                                         </ant>
                                     </target>
                                 </configuration>
@@ -314,7 +314,7 @@
                                 <configuration>
                                     <target>
                                         <ant target="databaseServer" antfile="${basedir}/src/config/build.xml">
-                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath" />
+                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath"/>
                                         </ant>
                                     </target>
                                 </configuration>
@@ -328,7 +328,7 @@
                                 <configuration>
                                     <target>
                                         <ant target="databaseInit" antfile="${basedir}/src/config/build.xml">
-                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath" />
+                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath"/>
                                         </ant>
                                     </target>
                                 </configuration>
@@ -406,7 +406,7 @@
                                 <configuration>
                                     <target>
                                         <ant target="run" antfile="${basedir}/src/config/build.xml">
-                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath" />
+                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath"/>
                                         </ant>
                                     </target>
                                 </configuration>
@@ -420,7 +420,7 @@
                                 <configuration>
                                     <target>
                                         <ant target="databaseServer" antfile="${basedir}/src/config/build.xml">
-                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath" />
+                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath"/>
                                         </ant>
                                     </target>
                                 </configuration>
@@ -434,7 +434,7 @@
                                 <configuration>
                                     <target>
                                         <ant target="databaseInit" antfile="${basedir}/src/config/build.xml">
-                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath" />
+                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath"/>
                                         </ant>
                                     </target>
                                 </configuration>
@@ -513,7 +513,7 @@
                                 <configuration>
                                     <target>
                                         <ant target="run" antfile="${basedir}/src/config/build.xml">
-                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath" />
+                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath"/>
                                         </ant>
                                     </target>
                                 </configuration>
@@ -527,7 +527,7 @@
                                 <configuration>
                                     <target>
                                         <ant target="databaseServer" antfile="${basedir}/src/config/build.xml">
-                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath" />
+                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath"/>
                                         </ant>
                                     </target>
                                 </configuration>
@@ -541,7 +541,7 @@
                                 <configuration>
                                     <target>
                                         <ant target="databaseInit" antfile="${basedir}/src/config/build.xml">
-                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath" />
+                                            <reference torefid="maven.compile.classpath" refid="maven.compile.classpath"/>
                                         </ant>
                                     </target>
                                 </configuration>
@@ -789,7 +789,7 @@
             <groupId>org.hsqldb</groupId>
             <artifactId>hsqldb</artifactId>
             <!-- <version>2.7.1</version> 2.6.0+ requires Java 11. -->
-            <version>2.5.2</version>
+            <version>2.7.2</version>
         </dependency>
 
         <dependency>
@@ -1102,8 +1102,8 @@
                                 <exclude>target/**/*.*</exclude>
                             </excludes>
                             <!-- define the steps to apply to those files -->
-                            <trimTrailingWhitespace />
-                            <endWithNewline />
+                            <trimTrailingWhitespace/>
+                            <endWithNewline/>
                             <indent>
                                 <tabs>false</tabs>
                                 <spaces>true</spaces>
@@ -1144,8 +1144,8 @@
 
                     <!-- define a language-specific format -->
                     <java>
-                        <importOrder /> <!-- standard import order -->
-                        <removeUnusedImports /> <!-- self-explanatory -->
+                        <importOrder/> <!-- standard import order -->
+                        <removeUnusedImports/> <!-- self-explanatory -->
 
                         <!-- apply a specific flavor of google-java-format -->
                         <googleJavaFormat>