Bump com.anthropic:anthropic-java from 0.8.0 to 2.6.0 (#246)

Bumps
[com.anthropic:anthropic-java](https://github.com/anthropics/anthropic-sdk-java)
from 0.8.0 to 2.6.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/anthropics/anthropic-sdk-java/releases">com.anthropic:anthropic-java's
releases</a>.</em></p>
<blockquote>
<h2>v2.6.0</h2>
<h2>2.6.0 (2025-09-02)</h2>
<p>Full Changelog: <a
href="https://github.com/anthropics/anthropic-sdk-java/compare/v2.5.1...v2.6.0">v2.5.1...v2.6.0</a></p>
<h3>Features</h3>
<ul>
<li><strong>client:</strong> adds support for code-execution-2025-08-26
tool (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/da4c57b12dafe5243a5e06288c946830746622e5">da4c57b</a>)</li>
</ul>
<h3>Bug Fixes</h3>
<ul>
<li><strong>client:</strong> ensure correct binary content type (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/197fdd5433ad9d39b488bb232797084b08bade7f">197fdd5</a>)</li>
<li>fix casing issue (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/c2c50097e4ea22fbac005fc4083142315384c51b">c2c5009</a>)</li>
<li>update singularization rules (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/afec494c858f4231191f8ff80e3a5dfd37f62e82">afec494</a>)</li>
</ul>
<h3>Performance Improvements</h3>
<ul>
<li><strong>internal:</strong> make formatting faster (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/7c36322f9f664d32a4649f07d0bfc02a3116129b">7c36322</a>)</li>
</ul>
<h3>Chores</h3>
<ul>
<li><strong>api:</strong> remove unsupported endpoints (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/d9b7be334b6d949045be9f9ee22f8b80b20c8cda">d9b7be3</a>)</li>
<li><strong>ci:</strong> add build job (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/061df8e7024fc4db78f703510e6e80ff20221974">061df8e</a>)</li>
<li><strong>ci:</strong> reduce log noise (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/b91d7779f1263e3f33a6297fab9016e2dc52a74b">b91d777</a>)</li>
<li><strong>client:</strong> refactor closing / shutdown (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/f0c796d723913df6b9465cbb4d0a84d00df21cdd">f0c796d</a>)</li>
<li><strong>client:</strong> rename parameter (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/197fdd5433ad9d39b488bb232797084b08bade7f">197fdd5</a>)</li>
<li><strong>internal:</strong> dynamically determine included projects
(<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/93db169c6cf328e9a7ffca28555264686853001a">93db169</a>)</li>
<li><strong>internal:</strong> run formatter (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/06cd69ff9dc45bf6ae427c87818b31bee60fd35d">06cd69f</a>)</li>
<li><strong>internal:</strong> support passing arguments to test script
(<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/8528c63f15574ecf0def1ad937324e83d324675f">8528c63</a>)</li>
<li><strong>internal:</strong> support running formatters directly (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/e0de72e934963d0dddf749d678e6293d123cb79e">e0de72e</a>)</li>
<li>remove memory upper bound from publishing step (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/cb2ac3b70f37f9d65bbeaff429f684b66911b3b1">cb2ac3b</a>)</li>
<li><strong>tests:</strong> setup cache creation in MessageAccumulator
test (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/d5de4438df3ee755bac3d4c66021e653c9f07acb">d5de443</a>)</li>
</ul>
<h2>v2.5.1</h2>
<h2>2.5.1 (2025-08-13)</h2>
<p>Full Changelog: <a
href="https://github.com/anthropics/anthropic-sdk-java/compare/v2.5.0...v2.5.1">v2.5.0...v2.5.1</a></p>
<h3>Chores</h3>
<ul>
<li>deprecate older claude-3-5 sonnet models (<a
href="https://redirect.github.com/anthropics/anthropic-sdk-java/issues/591">#591</a>)
(<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/c7c4cc1a0862f3121f9e1eb7703407efe9198b0c">c7c4cc1</a>)</li>
<li><strong>internal:</strong> format identity methods (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/483576abc49b0932bade9ad667747d1eedbea8a4">483576a</a>)</li>
</ul>
<h2>v2.5.0</h2>
<h2>2.5.0 (2025-08-12)</h2>
<p>Full Changelog: <a
href="https://github.com/anthropics/anthropic-sdk-java/compare/v2.4.0...v2.5.0">v2.4.0...v2.5.0</a></p>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/anthropics/anthropic-sdk-java/blob/main/CHANGELOG.md">com.anthropic:anthropic-java's
changelog</a>.</em></p>
<blockquote>
<h2>2.6.0 (2025-09-02)</h2>
<p>Full Changelog: <a
href="https://github.com/anthropics/anthropic-sdk-java/compare/v2.5.1...v2.6.0">v2.5.1...v2.6.0</a></p>
<h3>Features</h3>
<ul>
<li><strong>client:</strong> adds support for code-execution-2025-08-26
tool (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/da4c57b12dafe5243a5e06288c946830746622e5">da4c57b</a>)</li>
</ul>
<h3>Bug Fixes</h3>
<ul>
<li><strong>client:</strong> ensure correct binary content type (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/197fdd5433ad9d39b488bb232797084b08bade7f">197fdd5</a>)</li>
<li>fix casing issue (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/c2c50097e4ea22fbac005fc4083142315384c51b">c2c5009</a>)</li>
<li>update singularization rules (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/afec494c858f4231191f8ff80e3a5dfd37f62e82">afec494</a>)</li>
</ul>
<h3>Performance Improvements</h3>
<ul>
<li><strong>internal:</strong> make formatting faster (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/7c36322f9f664d32a4649f07d0bfc02a3116129b">7c36322</a>)</li>
</ul>
<h3>Chores</h3>
<ul>
<li><strong>api:</strong> remove unsupported endpoints (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/d9b7be334b6d949045be9f9ee22f8b80b20c8cda">d9b7be3</a>)</li>
<li><strong>ci:</strong> add build job (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/061df8e7024fc4db78f703510e6e80ff20221974">061df8e</a>)</li>
<li><strong>ci:</strong> reduce log noise (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/b91d7779f1263e3f33a6297fab9016e2dc52a74b">b91d777</a>)</li>
<li><strong>client:</strong> refactor closing / shutdown (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/f0c796d723913df6b9465cbb4d0a84d00df21cdd">f0c796d</a>)</li>
<li><strong>client:</strong> rename parameter (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/197fdd5433ad9d39b488bb232797084b08bade7f">197fdd5</a>)</li>
<li><strong>internal:</strong> dynamically determine included projects
(<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/93db169c6cf328e9a7ffca28555264686853001a">93db169</a>)</li>
<li><strong>internal:</strong> run formatter (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/06cd69ff9dc45bf6ae427c87818b31bee60fd35d">06cd69f</a>)</li>
<li><strong>internal:</strong> support passing arguments to test script
(<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/8528c63f15574ecf0def1ad937324e83d324675f">8528c63</a>)</li>
<li><strong>internal:</strong> support running formatters directly (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/e0de72e934963d0dddf749d678e6293d123cb79e">e0de72e</a>)</li>
<li>remove memory upper bound from publishing step (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/cb2ac3b70f37f9d65bbeaff429f684b66911b3b1">cb2ac3b</a>)</li>
<li><strong>tests:</strong> setup cache creation in MessageAccumulator
test (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/d5de4438df3ee755bac3d4c66021e653c9f07acb">d5de443</a>)</li>
</ul>
<h2>2.5.1 (2025-08-13)</h2>
<p>Full Changelog: <a
href="https://github.com/anthropics/anthropic-sdk-java/compare/v2.5.0...v2.5.1">v2.5.0...v2.5.1</a></p>
<h3>Chores</h3>
<ul>
<li>deprecate older claude-3-5 sonnet models (<a
href="https://redirect.github.com/anthropics/anthropic-sdk-java/issues/591">#591</a>)
(<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/c7c4cc1a0862f3121f9e1eb7703407efe9198b0c">c7c4cc1</a>)</li>
<li><strong>internal:</strong> format identity methods (<a
href="https://github.com/anthropics/anthropic-sdk-java/commit/483576abc49b0932bade9ad667747d1eedbea8a4">483576a</a>)</li>
</ul>
<h2>2.5.0 (2025-08-12)</h2>
<p>Full Changelog: <a
href="https://github.com/anthropics/anthropic-sdk-java/compare/v2.4.0...v2.5.0">v2.4.0...v2.5.0</a></p>
<h3>Features</h3>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/anthropics/anthropic-sdk-java/commit/42fce65f72958741c63c51b3d19012f35edbb4f9"><code>42fce65</code></a>
release: 2.6.0</li>
<li><a
href="https://github.com/anthropics/anthropic-sdk-java/commit/2b10838cc9b74df3e279763f0ea3af97012a9cc0"><code>2b10838</code></a>
feat(client): adds support for code-execution-2025-08-26 tool</li>
<li><a
href="https://github.com/anthropics/anthropic-sdk-java/commit/ab1254a8ab559806e56a8f41d833cacc80141dde"><code>ab1254a</code></a>
chore(internal): run formatter</li>
<li><a
href="https://github.com/anthropics/anthropic-sdk-java/commit/5611d37f31650a30ada83292d97dfa08561f205c"><code>5611d37</code></a>
chore(tests): setup cache creation in MessageAccumulator test</li>
<li><a
href="https://github.com/anthropics/anthropic-sdk-java/commit/95918dc6c0a0de64682b4c5e0630aff0402205bb"><code>95918dc</code></a>
codegen metadata</li>
<li><a
href="https://github.com/anthropics/anthropic-sdk-java/commit/d4fffce28f5984d2166399c327259e8f32ad993e"><code>d4fffce</code></a>
codegen metadata</li>
<li><a
href="https://github.com/anthropics/anthropic-sdk-java/commit/f02db72ed9521bfc9c1070e33281ab01ba3f2541"><code>f02db72</code></a>
codegen metadata</li>
<li><a
href="https://github.com/anthropics/anthropic-sdk-java/commit/2e258deed300d743ced11eda1920e127039931cc"><code>2e258de</code></a>
codegen metadata</li>
<li><a
href="https://github.com/anthropics/anthropic-sdk-java/commit/31c46ff041c167ce83837555fcd19281e78dad5f"><code>31c46ff</code></a>
fix: fix casing issue</li>
<li><a
href="https://github.com/anthropics/anthropic-sdk-java/commit/6fdc91169fa19753ba8b14887f032ffdd7ac44d6"><code>6fdc911</code></a>
fix: update singularization rules</li>
<li>Additional commits viewable in <a
href="https://github.com/anthropics/anthropic-sdk-java/compare/v0.8.0...v2.6.0">compare
view</a></li>
</ul>
</details>
<br />


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gradle/libs.versions.toml

@@ -21,7 +21,7 @@ awaitility = "4.3.0"
 
 # Samples
 mcp-kotlin = "0.7.0"
-anthropic = "0.8.0"
+anthropic = "2.7.0"
 shadow = "8.1.1"
 
 [libraries]

samples/kotlin-mcp-client/src/main/kotlin/io/modelcontextprotocol/sample/client/MCPClient.kt

@@ -2,7 +2,11 @@ package io.modelcontextprotocol.sample.client
 
 import com.anthropic.client.okhttp.AnthropicOkHttpClient
 import com.anthropic.core.JsonValue
-import com.anthropic.models.messages.*
+import com.anthropic.models.messages.MessageCreateParams
+import com.anthropic.models.messages.MessageParam
+import com.anthropic.models.messages.Model
+import com.anthropic.models.messages.Tool
+import com.anthropic.models.messages.ToolUnion
 import com.fasterxml.jackson.core.type.TypeReference
 import com.fasterxml.jackson.databind.ObjectMapper
 import io.modelcontextprotocol.kotlin.sdk.Implementation
@@ -24,7 +28,7 @@ class MCPClient : AutoCloseable {
     private val mcp: Client = Client(clientInfo = Implementation(name = "mcp-client-cli", version = "1.0.0"))
 
     private val messageParamsBuilder: MessageCreateParams.Builder = MessageCreateParams.builder()
-        .model(Model.CLAUDE_3_5_SONNET_20241022)
+        .model(Model.CLAUDE_4_SONNET_20250514)
         .maxTokens(1024)
 
     // List of tools offered by the server
@@ -56,15 +60,15 @@ class MCPClient : AutoCloseable {
             // Setup I/O transport using the process streams
             val transport = StdioClientTransport(
                 input = process.inputStream.asSource().buffered(),
-                output = process.outputStream.asSink().buffered()
+                output = process.outputStream.asSink().buffered(),
             )
 
             // Connect the MCP client to the server using the transport
             mcp.connect(transport)
 
             // Request the list of available tools from the server
             val toolsResult = mcp.listTools()
-            tools = toolsResult?.tools?.map { tool ->
+            tools = toolsResult.tools.map { tool ->
                 ToolUnion.ofTool(
                     Tool.builder()
                         .name(tool.name)
@@ -74,11 +78,11 @@ class MCPClient : AutoCloseable {
                                 .type(JsonValue.from(tool.inputSchema.type))
                                 .properties(tool.inputSchema.properties.toJsonValue())
                                 .putAdditionalProperty("required", JsonValue.from(tool.inputSchema.required))
-                                .build()
+                                .build(),
                         )
-                        .build()
+                        .build(),
                 )
-            } ?: emptyList()
+            }
             println("Connected to server with tools: ${tools.joinToString(", ") { it.tool().get().name() }}")
         } catch (e: Exception) {
             println("Failed to connect to MCP server: $e")
@@ -93,15 +97,15 @@ class MCPClient : AutoCloseable {
             MessageParam.builder()
                 .role(MessageParam.Role.USER)
                 .content(query)
-                .build()
+                .build(),
         )
 
         // Send the query to the Anthropic model and get the response
         val response = anthropic.messages().create(
             messageParamsBuilder
                 .messages(messages)
                 .tools(tools)
-                .build()
+                .build(),
         )
 
         val finalText = mutableListOf<String>()
@@ -119,7 +123,7 @@ class MCPClient : AutoCloseable {
                     // Call the tool with provided arguments
                     val result = mcp.callTool(
                         name = toolName,
-                        arguments = toolArgs ?: emptyMap()
+                        arguments = toolArgs ?: emptyMap(),
                     )
                     finalText.add("[Calling tool $toolName with args $toolArgs]")
 
@@ -131,17 +135,19 @@ class MCPClient : AutoCloseable {
                                 """
                                         "type": "tool_result",
                                         "tool_name": $toolName,
-                                        "result": ${result?.content?.joinToString("\n") { (it as TextContent).text ?: "" }}
-                                    """.trimIndent()
+                                        "result": ${result?.content?.joinToString("\n") {
+                                    (it as TextContent).text ?: ""
+                                }}
+                                """.trimIndent(),
                             )
-                            .build()
+                            .build(),
                     )
 
                     // Retrieve an updated response after tool execution
                     val aiResponse = anthropic.messages().create(
                         messageParamsBuilder
                             .messages(messages)
-                            .build()
+                            .build(),
                     )
 
                     // Append the updated response to final text
@@ -160,7 +166,7 @@ class MCPClient : AutoCloseable {
 
         while (true) {
             print("\nQuery: ")
-            val message = readLine() ?: break
+            val message = readlnOrNull() ?: break
             if (message.lowercase() == "quit") break
             val response = processQuery(message)
             println("\n$response")
@@ -173,4 +179,4 @@ class MCPClient : AutoCloseable {
             anthropic.close()
         }
     }
-}
+}