jdk core support

Author: jaydeluca

docs/instrumentation-list.yaml

@@ -1,3 +1,7 @@
+# This file is generated and should not be manually edited.
+# The structure and contents are a work in progress and subject to change.
+# For more information see: https://github.com/open-telemetry/opentelemetry-java-instrumentation/issues/13468
+
 activej:
   instrumentations:
   - name: activej-http-6.0
@@ -395,15 +399,17 @@ executors:
     scope:
       name: io.opentelemetry.executors
     target_versions:
-      javaagent: []
+      javaagent:
+      - Java 8+
 external:
   instrumentations:
   - name: external-annotations
     srcPath: instrumentation/external-annotations
     scope:
       name: io.opentelemetry.external-annotations
     target_versions:
-      javaagent: []
+      javaagent:
+      - Java 8+
 finagle:
   instrumentations:
   - name: finagle-http-23.11
@@ -567,7 +573,8 @@ http:
     scope:
       name: io.opentelemetry.http-url-connection
     target_versions:
-      javaagent: []
+      javaagent:
+      - Java 8+
 hystrix:
   instrumentations:
   - name: hystrix-1.4
@@ -644,14 +651,16 @@ java:
     scope:
       name: io.opentelemetry.java-http-server
     target_versions:
-      javaagent: []
+      javaagent:
+      - Java 8+
       library: []
   - name: java-http-client
     srcPath: instrumentation/java-http-client
     scope:
       name: io.opentelemetry.java-http-client
     target_versions:
-      javaagent: []
+      javaagent:
+      - Java 8+
       library: []
 javalin:
   instrumentations:
@@ -806,7 +815,8 @@ jdbc:
     scope:
       name: io.opentelemetry.jdbc
     target_versions:
-      javaagent: []
+      javaagent:
+      - Java 8+
       library: []
 jedis:
   instrumentations:
@@ -1149,7 +1159,8 @@ methods:
     scope:
       name: io.opentelemetry.methods
     target_versions:
-      javaagent: []
+      javaagent:
+      - Java 8+
 micrometer:
   instrumentations:
   - name: micrometer-1.5
@@ -1649,7 +1660,8 @@ rmi:
     scope:
       name: io.opentelemetry.rmi
     target_versions:
-      javaagent: []
+      javaagent:
+      - Java 8+
 rocketmq:
   instrumentations:
   - name: rocketmq-client-5.0

instrumentation-docs/src/main/java/io/opentelemetry/instrumentation/docs/DocGeneratorApplication.java

@@ -27,6 +27,10 @@ public static void main(String[] args) {
     try (BufferedWriter writer =
         Files.newBufferedWriter(
             Paths.get("docs/instrumentation-list.yaml"), Charset.defaultCharset())) {
+      writer.write("# This file is generated and should not be manually edited.\n");
+      writer.write("# The structure and contents are a work in progress and subject to change.\n");
+      writer.write(
+          "# For more information see: https://github.com/open-telemetry/opentelemetry-java-instrumentation/issues/13468\n\n");
       YamlHelper.printInstrumentationList(entities, writer);
     } catch (IOException e) {
       logger.severe("Error writing instrumentation list: " + e.getMessage());

instrumentation-docs/src/main/java/io/opentelemetry/instrumentation/docs/parsers/GradleParser.java

@@ -32,6 +32,8 @@ public class GradleParser {
   private static final Pattern latestDepTestLibraryPattern =
       Pattern.compile("latestDepTestLibrary\\(\"([^\"]+:[^\"]+):([^\"]+)\"\\)");
 
+  private static final Pattern coreJdkPattern = Pattern.compile("coreJdk\\(\\)");
+
   /**
    * Parses gradle files for muzzle and dependency information
    *
@@ -66,6 +68,10 @@ private static Set<String> parseMuzzle(String gradleFileContents, Map<String, St
     while (passBlockMatcher.find()) {
       String passBlock = passBlockMatcher.group(1);
 
+      if (coreJdkPattern.matcher(passBlock).find()) {
+        results.add("Java 8+");
+      }
+
       String group = extractValue(passBlock, "group\\.set\\(\"([^\"]+)\"\\)");
       String module = extractValue(passBlock, "module\\.set\\(\"([^\"]+)\"\\)");
       String versionRange = extractValue(passBlock, "versions\\.set\\(\"([^\"]+)\"\\)");

instrumentation-docs/src/test/java/io/opentelemetry/instrumentation/docs/parsers/GradleParserTest.java

@@ -57,6 +57,23 @@ void testExtractLibraryUpperVersion() {
         .isEqualTo("org.apache.httpcomponents:httpclient:[4.3,4.+)");
   }
 
+  @Test
+  void testExtractCoreJdk() {
+    String gradleBuildFileContent =
+        """
+            muzzle {
+              pass {
+                coreJdk()
+              }
+            }
+            """;
+
+    Set<String> versions =
+        GradleParser.parseGradleFile(gradleBuildFileContent, InstrumentationType.JAVAAGENT);
+    assertThat(versions.size()).isEqualTo(1);
+    assertThat(versions.stream().findFirst().get()).isEqualTo("Java 8+");
+  }
+
   @Test
   void testExtractMuzzleVersions_MultiplePassBlocks() {
     String gradleBuildFileContent =