diff --git a/build.gradle b/build.gradle
index a874db2a..dfd59c96 100644
--- a/build.gradle
+++ b/build.gradle
@@ -75,6 +75,8 @@ java {
 }
 
 dependencies {
+    implementation platform("org.grails:grails-bom:$grailsVersion")
+
     // compile grails-gradle-plugin with the Groovy version provided by Gradle
     // to ensure build compatibility with Gradle, currently Groovy 3.0.x
     // see: https://docs.gradle.org/current/userguide/compatibility.html#groovy
diff --git a/src/main/groovy/org/grails/gradle/plugin/core/GrailsExtension.groovy b/src/main/groovy/org/grails/gradle/plugin/core/GrailsExtension.groovy
index 87fa60ea..890f91b7 100644
--- a/src/main/groovy/org/grails/gradle/plugin/core/GrailsExtension.groovy
+++ b/src/main/groovy/org/grails/gradle/plugin/core/GrailsExtension.groovy
@@ -60,7 +60,7 @@ class GrailsExtension {
     /**
      * Whether java.time.* package should be a default import package
      */
-    boolean importJavaTime = true
+    boolean importJavaTime = false
 
     /**
      * Configure the reloading agent
diff --git a/src/main/groovy/org/grails/gradle/plugin/core/GrailsGradlePlugin.groovy b/src/main/groovy/org/grails/gradle/plugin/core/GrailsGradlePlugin.groovy
index c15240c9..0606bfb5 100644
--- a/src/main/groovy/org/grails/gradle/plugin/core/GrailsGradlePlugin.groovy
+++ b/src/main/groovy/org/grails/gradle/plugin/core/GrailsGradlePlugin.groovy
@@ -143,6 +143,16 @@ class GrailsGradlePlugin extends GroovyPlugin {
         configureRunCommand(project)
 
         configurePathingJar(project)
+
+        def configScriptTask = project.tasks.create('configScript')
+        def configFile = project.layout.buildDirectory.file('config.groovy')
+        configScriptTask.outputs.file(configFile)
+        addJavaTimeImport(project, configScriptTask)
+
+        project.tasks.withType(GroovyCompile).configureEach { GroovyCompile task ->
+            task.dependsOn('configScript')
+            task.groovyOptions.configurationScript = project.tasks.named('configScript').get().outputs.files.singleFile
+        }
     }
 
     protected void excludeDependencies(Project project) {
@@ -289,26 +299,19 @@ class GrailsGradlePlugin extends GroovyPlugin {
                 }
             }
         }
+    }
 
-        GrailsExtension grailsExt = project.extensions.getByType(GrailsExtension)
-        project.tasks.withType(GroovyCompile).configureEach { groovyCompileTask ->
+    protected void addJavaTimeImport(Project project, Task configScriptTask) {
+        configScriptTask.doLast {
+            GrailsExtension grailsExt = project.extensions.getByType(GrailsExtension)
             if (grailsExt.importJavaTime) {
-                groovyCompileTask.doFirst {
-                    def configScriptStream = getClass().getResourceAsStream("/GrailsCompilerConfig.groovy")
-                    if (configScriptStream != null) {
-                        def tempConfigScriptFile = File.createTempFile("build/GrailsCompilerConfig", ".groovy")
-                        tempConfigScriptFile.mkdirs()
-                        tempConfigScriptFile.deleteOnExit()
-
-                        def existingScript = groovyCompileTask.groovyOptions.configurationScript
-                        if (existingScript) {
-                            tempConfigScriptFile << existingScript.text
-                        }
-
-                        tempConfigScriptFile.text = configScriptStream.text
-                        groovyCompileTask.groovyOptions.configurationScript = tempConfigScriptFile
-                    }
+                outputs.files.singleFile << '''
+                configuration.with {
+                    def importCustomizer = new org.codehaus.groovy.control.customizers.ImportCustomizer()
+                    importCustomizer.addStarImports('java.time')
+                    addCompilationCustomizers(importCustomizer)
                 }
+                '''.stripIndent(16)
             }
         }
     }
diff --git a/src/main/groovy/org/grails/gradle/plugin/core/GrailsPluginGradlePlugin.groovy b/src/main/groovy/org/grails/gradle/plugin/core/GrailsPluginGradlePlugin.groovy
index 90aa0b66..992c87fb 100644
--- a/src/main/groovy/org/grails/gradle/plugin/core/GrailsPluginGradlePlugin.groovy
+++ b/src/main/groovy/org/grails/gradle/plugin/core/GrailsPluginGradlePlugin.groovy
@@ -256,32 +256,22 @@ class GrailsPluginGradlePlugin extends GrailsGradlePlugin {
         }
     }
 
-    @CompileDynamic
     protected void configureProjectNameAndVersionASTMetadata(Project project) {
-        def configScriptTask = project.tasks.create('configScript')
-
-        def configFile = project.file("$project.buildDir/config.groovy")
-        configScriptTask.outputs.file(configFile)
-
         def projectName = project.name
         def projectVersion = project.version
+        def configScriptTask = project.tasks.named('configScript').get()
         configScriptTask.inputs.property('name', projectName)
         configScriptTask.inputs.property('version', projectVersion)
         configScriptTask.doLast {
-            configFile.parentFile.mkdirs()
-            configFile.text = """
-withConfig(configuration) {
-    inline(phase: 'CONVERSION') { source, context, classNode ->
-        classNode.putNodeMetaData('projectVersion', '$projectVersion')
-        classNode.putNodeMetaData('projectName', '$projectName')
-        classNode.putNodeMetaData('isPlugin', 'true')
-    }
-}
-"""
-        }
-        project.tasks.getByName('compileGroovy').dependsOn(configScriptTask)
-        project.compileGroovy {
-            groovyOptions.configurationScript = configFile
+            outputs.files.singleFile << """
+            withConfig(configuration) {
+                inline(phase: 'CONVERSION') { source, context, classNode ->
+                    classNode.putNodeMetaData('projectVersion', '$projectVersion')
+                    classNode.putNodeMetaData('projectName', '$projectName')
+                    classNode.putNodeMetaData('isPlugin', 'true')
+                }
+            }
+            """.stripIndent(12)
         }
     }