Fix build due to phasing off SecurityManager usage in favor of Java Agent

Signed-off-by: Andriy Redko <drreta@gmail.com>

Author: reta

build.gradle

@@ -91,9 +91,18 @@ opensearchplugin {
   noticeFile rootProject.file('NOTICE')
 }
 
+configurations {
+  agent
+}
+
+
 dependencies {
   api "com.github.luben:zstd-jni:1.5.6-1"
   api "com.intel.qat:qat-java:1.1.1"
+
+  agent "org.opensearch:opensearch-agent-bootstrap:${opensearch_version}"
+  agent "org.opensearch:opensearch-agent:${opensearch_version}"
+  agent "net.bytebuddy:byte-buddy:1.17.5"
 }
 
 allprojects {
@@ -201,12 +210,14 @@ integTest {
     testClassesDirs = sourceSets.integTest.output.classesDirs
     classpath = sourceSets.integTest.runtimeClasspath
 
-    dependsOn "bundlePlugin"
+    dependsOn "bundlePlugin", "prepareAgent"
     systemProperty 'tests.security.manager', 'true'
 
     systemProperty "https", System.getProperty("https")
     systemProperty "user", System.getProperty("user")
     systemProperty "password", System.getProperty("password")
+
+    jvmArgs += ["-javaagent:" + project.layout.buildDirectory.file("agent/opensearch-agent-${opensearch_version}.jar").get()]
 }
 
 testClusters.integTest {
@@ -232,3 +243,14 @@ task updateVersion {
         ant.replaceregexp(file:'build.gradle', match: '"opensearch.version", "\\d.*"', replace: '"opensearch.version", "' + newVersion.tokenize('-')[0] + '-SNAPSHOT"', flags:'g', byline:true)
     }
 }
+
+task prepareAgent(type: Copy) {
+  from(configurations.agent)
+  into "$buildDir/agent"
+}
+
+tasks.test {
+  dependsOn prepareAgent
+  jvmArgs += ["-javaagent:" + project.layout.buildDirectory.file("agent/opensearch-agent-${opensearch_version}.jar").get()]
+}
+

src/main/plugin-metadata/plugin-security.policy

@@ -6,6 +6,10 @@
  * compatible open source license.
  */
 
+grant {
+  permission java.net.NetPermission "accessUnixDomainSocket";
+}
+
 grant codeBase "${codebase.zstd-jni}" {
   permission java.lang.RuntimePermission "loadLibrary.*";
 };