diff --git a/server/jetty/build.gradle b/server/jetty/build.gradle
index 442fc4e92c2..37653c73b9a 100644
--- a/server/jetty/build.gradle
+++ b/server/jetty/build.gradle
@@ -41,14 +41,7 @@ distributions {
     }
 }
 
-def extraJvmArgs = []
-if (hasProperty('groovy')) {
-    extraJvmArgs = ['-Ddeephaven.console.type=groovy']
-}
-
-applicationName = 'start'
-mainClassName = 'io.deephaven.server.jetty.JettyMain'
-applicationDefaultJvmArgs = [
+def extraJvmArgs = [
         '-server',
         '-XX:+UseG1GC',
         '-XX:MaxGCPauseMillis=100',
@@ -66,10 +59,19 @@ applicationDefaultJvmArgs = [
         '-XX:MinRAMPercentage=70.0',
         // the percentage of system memory that the JVM will use as maximum
         '-XX:MaxRAMPercentage=80.0',
-] + extraJvmArgs
-
-apply plugin: 'io.deephaven.java-open-nio'
-
+]
+if (hasProperty('groovy')) {
+    extraJvmArgs += ['-Ddeephaven.console.type=groovy']
+}
 tasks.withType(JavaExec) {
-    jvmArgs applicationDefaultJvmArgs
+    // This appends to the existing jvm args, so that java-open-nio still takes effect
+    jvmArgs extraJvmArgs
 }
+tasks.withType(CreateStartScripts) {
+    defaultJvmOpts += extraJvmArgs
+}
+
+applicationName = 'start'
+mainClassName = 'io.deephaven.server.jetty.JettyMain'
+
+apply plugin: 'io.deephaven.java-open-nio'
diff --git a/server/netty/build.gradle b/server/netty/build.gradle
index f8dd7fee7bf..a06b0b5e132 100644
--- a/server/netty/build.gradle
+++ b/server/netty/build.gradle
@@ -33,14 +33,7 @@ distributions {
     }
 }
 
-def extraJvmArgs = []
-if (hasProperty('groovy')) {
-    extraJvmArgs = ['-Ddeephaven.console.type=groovy']
-}
-
-applicationName = 'start'
-mainClassName = 'io.deephaven.server.netty.NettyMain'
-applicationDefaultJvmArgs = [
+def extraJvmArgs = [
         '-server',
         '-XX:+UseG1GC',
         '-XX:MaxGCPauseMillis=100',
@@ -58,14 +51,23 @@ applicationDefaultJvmArgs = [
         '-XX:MinRAMPercentage=70.0',
         // the percentage of system memory that the JVM will use as maximum
         '-XX:MaxRAMPercentage=80.0',
-] + extraJvmArgs
+]
+if (hasProperty('groovy')) {
+    extraJvmArgs += ['-Ddeephaven.console.type=groovy']
+}
+tasks.withType(JavaExec) {
+    // This appends to the existing jvm args, so that java-open-nio still takes effect
+    jvmArgs extraJvmArgs
+}
+tasks.withType(CreateStartScripts) {
+    defaultJvmOpts += extraJvmArgs
+}
+
+applicationName = 'start'
+mainClassName = 'io.deephaven.server.netty.NettyMain'
 
 artifacts {
     applicationDist project.tasks.findByName('distTar')
 }
 
 apply plugin: 'io.deephaven.java-open-nio'
-
-tasks.withType(JavaExec) {
-    jvmArgs applicationDefaultJvmArgs
-}