diff --git a/examples/grails3-hibernate5-mongodb/grails-app/conf/logback.groovy b/examples/grails3-hibernate5-mongodb/grails-app/conf/logback.groovy
deleted file mode 100644
index 2f7c41c1..00000000
--- a/examples/grails3-hibernate5-mongodb/grails-app/conf/logback.groovy
+++ /dev/null
@@ -1,23 +0,0 @@
-import grails.util.BuildSettings
-import grails.util.Environment
-
-// See http://logback.qos.ch/manual/groovy.html for details on configuration
-appender('STDOUT', ConsoleAppender) {
-    encoder(PatternLayoutEncoder) {
-        pattern = "%level %logger - %msg%n"
-    }
-}
-
-root(ERROR, ['STDOUT'])
-
-def targetDir = BuildSettings.TARGET_DIR
-if (Environment.isDevelopmentMode() && targetDir) {
-    appender("FULL_STACKTRACE", FileAppender) {
-        file = "${targetDir}/stacktrace.log"
-        append = true
-        encoder(PatternLayoutEncoder) {
-            pattern = "%level %logger - %msg%n"
-        }
-    }
-    logger("StackTrace", ERROR, ['FULL_STACKTRACE'], false)
-}
diff --git a/examples/grails3-hibernate5-mongodb/grails-app/conf/logback.xml b/examples/grails3-hibernate5-mongodb/grails-app/conf/logback.xml
new file mode 100644
index 00000000..f4e77836
--- /dev/null
+++ b/examples/grails3-hibernate5-mongodb/grails-app/conf/logback.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+
+    <conversionRule conversionWord="clr" converterClass="org.springframework.boot.logging.logback.ColorConverter" />
+    <conversionRule conversionWord="wex" converterClass="org.springframework.boot.logging.logback.WhitespaceThrowableProxyConverter" />
+
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <charset>UTF-8</charset>
+            <pattern>'%clr(%d{yyyy-MM-dd HH:mm:ss.SSS}){faint} %clr(%5p) %clr(---){faint} %clr([%15.15t]){faint} %clr(%-40.40logger{39}){cyan} %clr(:){faint} %m%n%wex'</pattern>
+        </encoder>
+    </appender>
+
+    <root level="error">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>
\ No newline at end of file
diff --git a/examples/grails3-mongodb-database-per-tenant/grails-app/conf/logback.groovy b/examples/grails3-mongodb-database-per-tenant/grails-app/conf/logback.groovy
deleted file mode 100644
index 2f7c41c1..00000000
--- a/examples/grails3-mongodb-database-per-tenant/grails-app/conf/logback.groovy
+++ /dev/null
@@ -1,23 +0,0 @@
-import grails.util.BuildSettings
-import grails.util.Environment
-
-// See http://logback.qos.ch/manual/groovy.html for details on configuration
-appender('STDOUT', ConsoleAppender) {
-    encoder(PatternLayoutEncoder) {
-        pattern = "%level %logger - %msg%n"
-    }
-}
-
-root(ERROR, ['STDOUT'])
-
-def targetDir = BuildSettings.TARGET_DIR
-if (Environment.isDevelopmentMode() && targetDir) {
-    appender("FULL_STACKTRACE", FileAppender) {
-        file = "${targetDir}/stacktrace.log"
-        append = true
-        encoder(PatternLayoutEncoder) {
-            pattern = "%level %logger - %msg%n"
-        }
-    }
-    logger("StackTrace", ERROR, ['FULL_STACKTRACE'], false)
-}
diff --git a/examples/grails3-mongodb-database-per-tenant/grails-app/conf/logback.xml b/examples/grails3-mongodb-database-per-tenant/grails-app/conf/logback.xml
new file mode 100644
index 00000000..f4e77836
--- /dev/null
+++ b/examples/grails3-mongodb-database-per-tenant/grails-app/conf/logback.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+
+    <conversionRule conversionWord="clr" converterClass="org.springframework.boot.logging.logback.ColorConverter" />
+    <conversionRule conversionWord="wex" converterClass="org.springframework.boot.logging.logback.WhitespaceThrowableProxyConverter" />
+
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <charset>UTF-8</charset>
+            <pattern>'%clr(%d{yyyy-MM-dd HH:mm:ss.SSS}){faint} %clr(%5p) %clr(---){faint} %clr([%15.15t]){faint} %clr(%-40.40logger{39}){cyan} %clr(:){faint} %m%n%wex'</pattern>
+        </encoder>
+    </appender>
+
+    <root level="error">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>
\ No newline at end of file
diff --git a/examples/grails3-mongodb/grails-app/conf/logback.groovy b/examples/grails3-mongodb/grails-app/conf/logback.groovy
deleted file mode 100644
index 2f7c41c1..00000000
--- a/examples/grails3-mongodb/grails-app/conf/logback.groovy
+++ /dev/null
@@ -1,23 +0,0 @@
-import grails.util.BuildSettings
-import grails.util.Environment
-
-// See http://logback.qos.ch/manual/groovy.html for details on configuration
-appender('STDOUT', ConsoleAppender) {
-    encoder(PatternLayoutEncoder) {
-        pattern = "%level %logger - %msg%n"
-    }
-}
-
-root(ERROR, ['STDOUT'])
-
-def targetDir = BuildSettings.TARGET_DIR
-if (Environment.isDevelopmentMode() && targetDir) {
-    appender("FULL_STACKTRACE", FileAppender) {
-        file = "${targetDir}/stacktrace.log"
-        append = true
-        encoder(PatternLayoutEncoder) {
-            pattern = "%level %logger - %msg%n"
-        }
-    }
-    logger("StackTrace", ERROR, ['FULL_STACKTRACE'], false)
-}
diff --git a/examples/grails3-mongodb/grails-app/conf/logback.xml b/examples/grails3-mongodb/grails-app/conf/logback.xml
new file mode 100644
index 00000000..f4e77836
--- /dev/null
+++ b/examples/grails3-mongodb/grails-app/conf/logback.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+
+    <conversionRule conversionWord="clr" converterClass="org.springframework.boot.logging.logback.ColorConverter" />
+    <conversionRule conversionWord="wex" converterClass="org.springframework.boot.logging.logback.WhitespaceThrowableProxyConverter" />
+
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <charset>UTF-8</charset>
+            <pattern>'%clr(%d{yyyy-MM-dd HH:mm:ss.SSS}){faint} %clr(%5p) %clr(---){faint} %clr([%15.15t]){faint} %clr(%-40.40logger{39}){cyan} %clr(:){faint} %m%n%wex'</pattern>
+        </encoder>
+    </appender>
+
+    <root level="error">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>
\ No newline at end of file
diff --git a/examples/test-data-service/grails-app/conf/logback.groovy b/examples/test-data-service/grails-app/conf/logback.groovy
deleted file mode 100644
index b835215c..00000000
--- a/examples/test-data-service/grails-app/conf/logback.groovy
+++ /dev/null
@@ -1,37 +0,0 @@
-import grails.util.BuildSettings
-import grails.util.Environment
-import org.springframework.boot.logging.logback.ColorConverter
-import org.springframework.boot.logging.logback.WhitespaceThrowableProxyConverter
-
-import java.nio.charset.StandardCharsets
-
-conversionRule 'clr', ColorConverter
-conversionRule 'wex', WhitespaceThrowableProxyConverter
-
-// See http://logback.qos.ch/manual/groovy.html for details on configuration
-appender('STDOUT', ConsoleAppender) {
-    encoder(PatternLayoutEncoder) {
-        charset = StandardCharsets.UTF_8
-
-        pattern =
-                '%clr(%d{yyyy-MM-dd HH:mm:ss.SSS}){faint} ' + // Date
-                        '%clr(%5p) ' + // Log level
-                        '%clr(---){faint} %clr([%15.15t]){faint} ' + // Thread
-                        '%clr(%-40.40logger{39}){cyan} %clr(:){faint} ' + // Logger
-                        '%m%n%wex' // Message
-    }
-}
-
-def targetDir = BuildSettings.TARGET_DIR
-if (Environment.isDevelopmentMode() && targetDir != null) {
-    appender("FULL_STACKTRACE", FileAppender) {
-        file = "${targetDir}/stacktrace.log"
-        append = true
-        encoder(PatternLayoutEncoder) {
-            charset = StandardCharsets.UTF_8
-            pattern = "%level %logger - %msg%n"
-        }
-    }
-    logger("StackTrace", ERROR, ['FULL_STACKTRACE'], false)
-}
-root(ERROR, ['STDOUT'])
diff --git a/examples/test-data-service/grails-app/conf/logback.xml b/examples/test-data-service/grails-app/conf/logback.xml
new file mode 100644
index 00000000..f4e77836
--- /dev/null
+++ b/examples/test-data-service/grails-app/conf/logback.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+
+    <conversionRule conversionWord="clr" converterClass="org.springframework.boot.logging.logback.ColorConverter" />
+    <conversionRule conversionWord="wex" converterClass="org.springframework.boot.logging.logback.WhitespaceThrowableProxyConverter" />
+
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <charset>UTF-8</charset>
+            <pattern>'%clr(%d{yyyy-MM-dd HH:mm:ss.SSS}){faint} %clr(%5p) %clr(---){faint} %clr([%15.15t]){faint} %clr(%-40.40logger{39}){cyan} %clr(:){faint} %m%n%wex'</pattern>
+        </encoder>
+    </appender>
+
+    <root level="error">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>
\ No newline at end of file