release: 4.8.0

.github/workflows/ci.yml

@@ -20,10 +20,10 @@ jobs:
     if: github.event_name == 'push' || github.event.pull_request.head.repo.fork
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Java
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
         with:
           distribution: temurin
           java-version: |
@@ -47,10 +47,10 @@ jobs:
     if: github.event_name == 'push' || github.event.pull_request.head.repo.fork
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Java
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
         with:
           distribution: temurin
           java-version: |
@@ -85,10 +85,10 @@ jobs:
     runs-on: ${{ github.repository == 'stainless-sdks/courier-java' && 'depot-ubuntu-24.04' || 'ubuntu-latest' }}
     if: github.event_name == 'push' || github.event.pull_request.head.repo.fork
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Java
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
         with:
           distribution: temurin
           java-version: |

.github/workflows/publish-sonatype.yml

@@ -14,10 +14,10 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Java
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
         with:
           distribution: temurin
           java-version: |

.github/workflows/release-doctor.yml

@@ -12,7 +12,7 @@ jobs:
     if: github.repository == 'trycourier/courier-java' && (github.event_name == 'push' || github.event_name == 'workflow_dispatch' || startsWith(github.head_ref, 'release-please') || github.head_ref == 'next')
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Check release environment
         run: |

.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-  ".": "4.7.1"
+  ".": "4.8.0"
 }

.stats.yml

@@ -1,4 +1,4 @@
 configured_endpoints: 78
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/courier%2Fcourier-e3e54d99e2a73fd87519270f2685131050d342e86a4e96130247b854deae5c20.yml
-openapi_spec_hash: 897a3fbee24f24d021d6af0df480220c
-config_hash: 66a5c28bb74d78454456d9ce7d1c0a0c
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/courier%2Fcourier-9a543994a29d199daec5228c34a90caf017db9a1084289f58645c6849b606940.yml
+openapi_spec_hash: f2f64858daadb0a1978b0e4a4d8ed149
+config_hash: ba6cf7f4dbdf6b9d03c6962dd1770569

CHANGELOG.md

@@ -1,5 +1,32 @@
 # Changelog
 
+## 4.8.0 (2026-01-22)
+
+Full Changelog: [v4.7.1...v4.8.0](https://github.com/trycourier/courier-java/compare/v4.7.1...v4.8.0)
+
+### Features
+
+* **client:** send `X-Stainless-Kotlin-Version` header ([11e5765](https://github.com/trycourier/courier-java/commit/11e5765a138fa78d8aaf0abc3df4dffd1493d3b4))
+
+
+### Bug Fixes
+
+* **client:** disallow coercion from float to int ([5263a13](https://github.com/trycourier/courier-java/commit/5263a1385622f70224b69681b7f75661d89107ef))
+* **client:** fully respect max retries ([33cdc16](https://github.com/trycourier/courier-java/commit/33cdc16ed453f885b62c996480751a45035e0afd))
+* **client:** send retry count header for max retries 0 ([33cdc16](https://github.com/trycourier/courier-java/commit/33cdc16ed453f885b62c996480751a45035e0afd))
+* date time deserialization leniency ([fa50329](https://github.com/trycourier/courier-java/commit/fa50329d5f5e1cd2c555d5deb71b4dd4d8a57c4a))
+
+
+### Chores
+
+* **ci:** upgrade `actions/setup-java` ([01049af](https://github.com/trycourier/courier-java/commit/01049af97f49ca7d1ad74d09017838263e24735f))
+* **internal:** clean up maven repo artifact script and add html documentation to repo root ([e1937ab](https://github.com/trycourier/courier-java/commit/e1937aba76551a3e486cb8961c3f1e0981d9a57f))
+* **internal:** depend on packages directly in example ([33cdc16](https://github.com/trycourier/courier-java/commit/33cdc16ed453f885b62c996480751a45035e0afd))
+* **internal:** improve maven repo docs ([af0c83b](https://github.com/trycourier/courier-java/commit/af0c83b582d3d26589a0f1176405a365df1e26b5))
+* **internal:** update `actions/checkout` version ([337fcd7](https://github.com/trycourier/courier-java/commit/337fcd7a6f5f7d5747ab6f48e74287e58d18eca0))
+* **internal:** update maven repo doc to include authentication ([dbf1829](https://github.com/trycourier/courier-java/commit/dbf182983acea01de5784fe9df85f1d43482de5a))
+* test on Jackson 2.14.0 to avoid encountering FasterXML/jackson-databind[#3240](https://github.com/trycourier/courier-java/issues/3240) in tests ([fa50329](https://github.com/trycourier/courier-java/commit/fa50329d5f5e1cd2c555d5deb71b4dd4d8a57c4a))
+
 ## 4.7.1 (2026-01-14)
 
 Full Changelog: [v4.7.0...v4.7.1](https://github.com/trycourier/courier-java/compare/v4.7.0...v4.7.1)

README.md

@@ -2,8 +2,8 @@
 
 <!-- x-release-please-start-version -->
 
-[![Maven Central](https://img.shields.io/maven-central/v/com.courier/courier-java)](https://central.sonatype.com/artifact/com.courier/courier-java/4.7.1)
-[![javadoc](https://javadoc.io/badge2/com.courier/courier-java/4.7.1/javadoc.svg)](https://javadoc.io/doc/com.courier/courier-java/4.7.1)
+[![Maven Central](https://img.shields.io/maven-central/v/com.courier/courier-java)](https://central.sonatype.com/artifact/com.courier/courier-java/4.8.0)
+[![javadoc](https://javadoc.io/badge2/com.courier/courier-java/4.8.0/javadoc.svg)](https://javadoc.io/doc/com.courier/courier-java/4.8.0)
 
 <!-- x-release-please-end -->
 
@@ -13,7 +13,7 @@ It is generated with [Stainless](https://www.stainless.com/).
 
 <!-- x-release-please-start-version -->
 
-The REST API documentation can be found on [www.courier.com](https://www.courier.com/docs). Javadocs are available on [javadoc.io](https://javadoc.io/doc/com.courier/courier-java/4.7.1).
+The REST API documentation can be found on [www.courier.com](https://www.courier.com/docs). Javadocs are available on [javadoc.io](https://javadoc.io/doc/com.courier/courier-java/4.8.0).
 
 <!-- x-release-please-end -->
 
@@ -24,7 +24,7 @@ The REST API documentation can be found on [www.courier.com](https://www.courier
 ### Gradle
 
 ```kotlin
-implementation("com.courier:courier-java:4.7.1")
+implementation("com.courier:courier-java:4.8.0")
 ```
 
 ### Maven
@@ -33,7 +33,7 @@ implementation("com.courier:courier-java:4.7.1")
 <dependency>
   <groupId>com.courier</groupId>
   <artifactId>courier-java</artifactId>
-  <version>4.7.1</version>
+  <version>4.8.0</version>
 </dependency>
 ```
 
@@ -310,6 +310,8 @@ If the SDK threw an exception, but you're _certain_ the version is compatible, t
 > [!CAUTION]
 > We make no guarantee that the SDK works correctly when the Jackson version check is disabled.
 
+Also note that there are bugs in older Jackson versions that can affect the SDK. We don't work around all Jackson bugs ([example](https://github.com/FasterXML/jackson-databind/issues/3240)) and expect users to upgrade Jackson for those instead.
+
 ## Network options
 
 ### Retries

build.gradle.kts

@@ -8,7 +8,7 @@ repositories {
 
 allprojects {
     group = "com.courier"
-    version = "4.7.1" // x-release-please-version
+    version = "4.8.0" // x-release-please-version
 }
 
 subprojects {

courier-java-client-okhttp/src/main/kotlin/com/courier/client/okhttp/OkHttpClient.kt

@@ -230,6 +230,8 @@ private constructor(@JvmSynthetic internal val okHttpClient: okhttp3.OkHttpClien
         fun build(): OkHttpClient =
             OkHttpClient(
                 okhttp3.OkHttpClient.Builder()
+                    // `RetryingHttpClient` handles retries if the user enabled them.
+                    .retryOnConnectionFailure(false)
                     .connectTimeout(timeout.connect())
                     .readTimeout(timeout.read())
                     .writeTimeout(timeout.write())

courier-java-core/build.gradle.kts

@@ -5,14 +5,16 @@ plugins {
 
 configurations.all {
     resolutionStrategy {
-        // Compile and test against a lower Jackson version to ensure we're compatible with it.
-        // We publish with a higher version (see below) to ensure users depend on a secure version by default.
-        force("com.fasterxml.jackson.core:jackson-core:2.13.4")
-        force("com.fasterxml.jackson.core:jackson-databind:2.13.4")
-        force("com.fasterxml.jackson.core:jackson-annotations:2.13.4")
-        force("com.fasterxml.jackson.datatype:jackson-datatype-jdk8:2.13.4")
-        force("com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.13.4")
-        force("com.fasterxml.jackson.module:jackson-module-kotlin:2.13.4")
+        // Compile and test against a lower Jackson version to ensure we're compatible with it. Note that
+        // we generally support 2.13.4, but test against 2.14.0 because 2.13.4 has some annoying (but
+        // niche) bugs (users should upgrade if they encounter them). We publish with a higher version
+        // (see below) to ensure users depend on a secure version by default.
+        force("com.fasterxml.jackson.core:jackson-core:2.14.0")
+        force("com.fasterxml.jackson.core:jackson-databind:2.14.0")
+        force("com.fasterxml.jackson.core:jackson-annotations:2.14.0")
+        force("com.fasterxml.jackson.datatype:jackson-datatype-jdk8:2.14.0")
+        force("com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.14.0")
+        force("com.fasterxml.jackson.module:jackson-module-kotlin:2.14.0")
     }
 }
 

courier-java-core/src/main/kotlin/com/courier/core/ClientOptions.kt

@@ -402,6 +402,7 @@ private constructor(
             headers.put("X-Stainless-Package-Version", getPackageVersion())
             headers.put("X-Stainless-Runtime", "JRE")
             headers.put("X-Stainless-Runtime-Version", getJavaVersion())
+            headers.put("X-Stainless-Kotlin-Version", KotlinVersion.CURRENT.toString())
             apiKey.let {
                 if (!it.isEmpty()) {
                     headers.put("Authorization", "Bearer $it")

courier-java-core/src/main/kotlin/com/courier/core/ObjectMappers.kt

@@ -24,6 +24,7 @@ import java.io.InputStream
 import java.time.DateTimeException
 import java.time.LocalDate
 import java.time.LocalDateTime
+import java.time.OffsetDateTime
 import java.time.ZonedDateTime
 import java.time.format.DateTimeFormatter
 import java.time.temporal.ChronoField
@@ -36,7 +37,7 @@ fun jsonMapper(): JsonMapper =
         .addModule(
             SimpleModule()
                 .addSerializer(InputStreamSerializer)
-                .addDeserializer(LocalDateTime::class.java, LenientLocalDateTimeDeserializer())
+                .addDeserializer(OffsetDateTime::class.java, LenientOffsetDateTimeDeserializer())
         )
         .withCoercionConfig(LogicalType.Boolean) {
             it.setCoercion(CoercionInputShape.Integer, CoercionAction.Fail)
@@ -47,6 +48,7 @@ fun jsonMapper(): JsonMapper =
         }
         .withCoercionConfig(LogicalType.Integer) {
             it.setCoercion(CoercionInputShape.Boolean, CoercionAction.Fail)
+                .setCoercion(CoercionInputShape.Float, CoercionAction.Fail)
                 .setCoercion(CoercionInputShape.String, CoercionAction.Fail)
                 .setCoercion(CoercionInputShape.Array, CoercionAction.Fail)
                 .setCoercion(CoercionInputShape.Object, CoercionAction.Fail)
@@ -64,6 +66,12 @@ fun jsonMapper(): JsonMapper =
                 .setCoercion(CoercionInputShape.Array, CoercionAction.Fail)
                 .setCoercion(CoercionInputShape.Object, CoercionAction.Fail)
         }
+        .withCoercionConfig(LogicalType.DateTime) {
+            it.setCoercion(CoercionInputShape.Integer, CoercionAction.Fail)
+                .setCoercion(CoercionInputShape.Float, CoercionAction.Fail)
+                .setCoercion(CoercionInputShape.Array, CoercionAction.Fail)
+                .setCoercion(CoercionInputShape.Object, CoercionAction.Fail)
+        }
         .withCoercionConfig(LogicalType.Array) {
             it.setCoercion(CoercionInputShape.Boolean, CoercionAction.Fail)
                 .setCoercion(CoercionInputShape.Integer, CoercionAction.Fail)
@@ -124,10 +132,10 @@ private object InputStreamSerializer : BaseSerializer<InputStream>(InputStream::
 }
 
 /**
- * A deserializer that can deserialize [LocalDateTime] from datetimes, dates, and zoned datetimes.
+ * A deserializer that can deserialize [OffsetDateTime] from datetimes, dates, and zoned datetimes.
  */
-private class LenientLocalDateTimeDeserializer :
-    StdDeserializer<LocalDateTime>(LocalDateTime::class.java) {
+private class LenientOffsetDateTimeDeserializer :
+    StdDeserializer<OffsetDateTime>(OffsetDateTime::class.java) {
 
     companion object {
 
@@ -141,26 +149,28 @@ private class LenientLocalDateTimeDeserializer :
 
     override fun logicalType(): LogicalType = LogicalType.DateTime
 
-    override fun deserialize(p: JsonParser, context: DeserializationContext?): LocalDateTime {
+    override fun deserialize(p: JsonParser, context: DeserializationContext): OffsetDateTime {
         val exceptions = mutableListOf<Exception>()
 
         for (formatter in DATE_TIME_FORMATTERS) {
             try {
                 val temporal = formatter.parse(p.text)
 
                 return when {
-                    !temporal.isSupported(ChronoField.HOUR_OF_DAY) ->
-                        LocalDate.from(temporal).atStartOfDay()
-                    !temporal.isSupported(ChronoField.OFFSET_SECONDS) ->
-                        LocalDateTime.from(temporal)
-                    else -> ZonedDateTime.from(temporal).toLocalDateTime()
-                }
+                        !temporal.isSupported(ChronoField.HOUR_OF_DAY) ->
+                            LocalDate.from(temporal).atStartOfDay()
+                        !temporal.isSupported(ChronoField.OFFSET_SECONDS) ->
+                            LocalDateTime.from(temporal)
+                        else -> ZonedDateTime.from(temporal).toLocalDateTime()
+                    }
+                    .atZone(context.timeZone.toZoneId())
+                    .toOffsetDateTime()
             } catch (e: DateTimeException) {
                 exceptions.add(e)
             }
         }
 
-        throw JsonParseException(p, "Cannot parse `LocalDateTime` from value: ${p.text}").apply {
+        throw JsonParseException(p, "Cannot parse `OffsetDateTime` from value: ${p.text}").apply {
             exceptions.forEach { addSuppressed(it) }
         }
     }

courier-java-core/src/main/kotlin/com/courier/core/http/RetryingHttpClient.kt

@@ -31,10 +31,6 @@ private constructor(
 ) : HttpClient {
 
     override fun execute(request: HttpRequest, requestOptions: RequestOptions): HttpResponse {
-        if (!isRetryable(request) || maxRetries <= 0) {
-            return httpClient.execute(request, requestOptions)
-        }
-
         var modifiedRequest = maybeAddIdempotencyHeader(request)
 
         // Don't send the current retry count in the headers if the caller set their own value.
@@ -48,6 +44,10 @@ private constructor(
                 modifiedRequest = setRetryCountHeader(modifiedRequest, retries)
             }
 
+            if (!isRetryable(modifiedRequest)) {
+                return httpClient.execute(modifiedRequest, requestOptions)
+            }
+
             val response =
                 try {
                     val response = httpClient.execute(modifiedRequest, requestOptions)
@@ -75,10 +75,6 @@ private constructor(
         request: HttpRequest,
         requestOptions: RequestOptions,
     ): CompletableFuture<HttpResponse> {
-        if (!isRetryable(request) || maxRetries <= 0) {
-            return httpClient.executeAsync(request, requestOptions)
-        }
-
         val modifiedRequest = maybeAddIdempotencyHeader(request)
 
         // Don't send the current retry count in the headers if the caller set their own value.
@@ -94,8 +90,12 @@ private constructor(
             val requestWithRetryCount =
                 if (shouldSendRetryCount) setRetryCountHeader(request, retries) else request
 
-            return httpClient
-                .executeAsync(requestWithRetryCount, requestOptions)
+            val responseFuture = httpClient.executeAsync(requestWithRetryCount, requestOptions)
+            if (!isRetryable(requestWithRetryCount)) {
+                return responseFuture
+            }
+
+            return responseFuture
                 .handleAsync(
                     fun(
                         response: HttpResponse?,

courier-java-core/src/main/kotlin/com/courier/models/MessageRoutingChannel.kt

@@ -167,7 +167,7 @@ private constructor(
                     .toList()
             return when (bestMatches.size) {
                 // This can happen if what we're deserializing is completely incompatible with all
-                // the possible variants (e.g. deserializing from array).
+                // the possible variants (e.g. deserializing from boolean).
                 0 -> MessageRoutingChannel(_json = json)
                 1 -> bestMatches.single()
                 // If there's more than one match with the highest validity, then use the first

courier-java-core/src/main/kotlin/com/courier/models/UserProfileFirebaseToken.kt

@@ -165,7 +165,7 @@ private constructor(
                     .toList()
             return when (bestMatches.size) {
                 // This can happen if what we're deserializing is completely incompatible with all
-                // the possible variants (e.g. deserializing from object).
+                // the possible variants (e.g. deserializing from boolean).
                 0 -> UserProfileFirebaseToken(_json = json)
                 1 -> bestMatches.single()
                 // If there's more than one match with the highest validity, then use the first

courier-java-core/src/main/kotlin/com/courier/models/notifications/NotificationGetContent.kt

@@ -940,7 +940,7 @@ private constructor(
                             .toList()
                     return when (bestMatches.size) {
                         // This can happen if what we're deserializing is completely incompatible
-                        // with all the possible variants (e.g. deserializing from array).
+                        // with all the possible variants (e.g. deserializing from boolean).
                         0 -> Content(_json = json)
                         1 -> bestMatches.single()
                         // If there's more than one match with the highest validity, then use the

courier-java-core/src/main/kotlin/com/courier/models/send/SendMessageParams.kt

@@ -2089,7 +2089,7 @@ private constructor(
                         return when (bestMatches.size) {
                             // This can happen if what we're deserializing is completely
                             // incompatible with all the possible variants (e.g. deserializing from
-                            // object).
+                            // boolean).
                             0 -> ExpiresIn(_json = json)
                             1 -> bestMatches.single()
                             // If there's more than one match with the highest validity, then use

courier-java-core/src/main/kotlin/com/courier/models/users/tokens/UserToken.kt

@@ -983,7 +983,7 @@ private constructor(
                         .toList()
                 return when (bestMatches.size) {
                     // This can happen if what we're deserializing is completely incompatible with
-                    // all the possible variants (e.g. deserializing from object).
+                    // all the possible variants (e.g. deserializing from integer).
                     0 -> ExpiryDate(_json = json)
                     1 -> bestMatches.single()
                     // If there's more than one match with the highest validity, then use the first