diff --git a/build.gradle b/build.gradle
index 9673c0a96..0abe1cf3e 100644
--- a/build.gradle
+++ b/build.gradle
@@ -46,14 +46,14 @@ plugins {
     id 'java'
     id 'application'
     id 'maven-publish'
-    id 'com.google.protobuf' version '0.8.18'
+    id 'com.google.protobuf' version '0.9.4'
     id 'jacoco'
     id 'idea'
-    id 'com.github.spotbugs' version '5.0.13'
-    id "de.undercouch.download" version "4.0.4"
-    id 'com.adarshr.test-logger' version '2.1.0'
-    id 'org.gradle.test-retry' version '1.5.2'
-    id 'com.diffplug.spotless' version '5.11.0'
+    id 'com.github.spotbugs' version '6.0.7'
+    id "de.undercouch.download" version "5.5.0"
+    id 'com.adarshr.test-logger' version '4.0.0'
+    id 'org.gradle.test-retry' version '1.5.8'
+    id 'com.diffplug.spotless' version '6.25.0'
 }
 
 application {
@@ -86,7 +86,7 @@ distributions {
 spotless {
     java {
         licenseHeaderFile(file('license-header'))
-        googleJavaFormat('1.12.0').aosp()
+        googleJavaFormat('1.17.0').aosp()
         importOrder()
         removeUnusedImports()
         trimTrailingWhitespace()
@@ -126,7 +126,8 @@ testlogger {
 
 spotbugsMain {
     excludeFilter = file("checkstyle/findbugs-exclude.xml")
-    effort = 'max'
+
+    effort = com.github.spotbugs.snom.Effort.MAX
     ignoreFailures = true // TODO: Set this to false later as they are too many warnings to be fixed.
 
     reports {
@@ -145,14 +146,14 @@ check {
 }
 
 jacoco {
-    toolVersion = "0.8.7"
+    toolVersion = "0.8.11"
 }
 
 jacocoTestReport {
     reports {
-        xml.enabled true
-        html.enabled true
-        csv.enabled false
+        xml.required = true
+        html.required = true
+        csv.required = false
     }
 
     afterEvaluate {
@@ -208,7 +209,7 @@ check.dependsOn jacocoTestCoverageVerification
 version = opensearch_build
 
 distZip {
-    archiveName "performance-analyzer-rca-${version}.zip"
+    archiveFileName = "performance-analyzer-rca-${version}.zip"
 }
 
 publishing {
@@ -367,30 +368,19 @@ dependencies {
     implementation group: 'com.google.protobuf', name: 'protobuf-java', version: "${protobufVersion}"
     implementation 'io.grpc:grpc-netty:1.56.1'
     implementation 'io.grpc:grpc-protobuf:1.56.1'
-    implementation("io.netty:netty-codec-http2:${nettyVersion}") {
-        force = 'true'
-    }
-    implementation("io.netty:netty-handler-proxy:${nettyVersion}") {
-        force = 'true'
-    }
+    implementation("io.netty:netty-codec-http2:${nettyVersion}")
+    implementation("io.netty:netty-handler-proxy:${nettyVersion}")
     implementation 'io.grpc:grpc-stub:1.52.1'
     implementation "jakarta.annotation:jakarta.annotation-api:${jakartaVersion}"
 
-    // JDK9+ has to run powermock 2+. https://github.com/powermock/powermock/issues/888
-    testImplementation group: 'org.powermock', name: 'powermock-api-mockito2', version: '2.0.0'
-    testImplementation group: 'org.powermock', name: 'powermock-module-junit4', version: '2.0.0'
-    implementation("org.mockito:mockito-core") {
+    testImplementation("org.mockito:mockito-core") {
         version {
-            strictly "2.23.0"
+            strictly "5.10.0"
         }
     }
-    testImplementation group: 'org.powermock', name: 'powermock-core', version: '2.0.2'
-    testImplementation group: 'org.powermock', name: 'powermock-api-support', version: '2.0.2'
-    testImplementation group: 'org.powermock', name: 'powermock-module-junit4-common', version: '2.0.2'
     testImplementation group: 'org.javassist', name: 'javassist', version: '3.28.0-GA'
-    testImplementation group: 'org.powermock', name: 'powermock-reflect', version: '2.0.2'
-    testImplementation group: 'net.bytebuddy', name: 'byte-buddy', version: '1.9.3'
-    testImplementation group: 'org.objenesis', name: 'objenesis', version: '3.0.1'
+    testImplementation group: 'net.bytebuddy', name: 'byte-buddy', version: '1.14.7'
+    testImplementation group: 'org.objenesis', name: 'objenesis', version: '3.2'
     testImplementation group: 'org.hamcrest', name: 'hamcrest-library', version: '2.1'
     testImplementation group: 'org.hamcrest', name: 'hamcrest', version: '2.1'
     testImplementation group: 'junit', name: 'junit', version: "${junitVersion}"
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 943f0cbfa..d64cd4917 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 508322917..3499ded5c 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.6.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.5-bin.zip
 networkTimeout=10000
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
index 65dcd68d6..1aa94a426 100755
--- a/gradlew
+++ b/gradlew
@@ -83,10 +83,8 @@ done
 # This is normally unused
 # shellcheck disable=SC2034
 APP_BASE_NAME=${0##*/}
-APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
-
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
@@ -133,10 +131,13 @@ location of your Java installation."
     fi
 else
     JAVACMD=java
-    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
 
 Please set the JAVA_HOME variable in your environment to match the
 location of your Java installation."
+    fi
 fi
 
 # Increase the maximum file descriptors if we can.
@@ -144,7 +145,7 @@ if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
     case $MAX_FD in #(
       max*)
         # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
-        # shellcheck disable=SC3045 
+        # shellcheck disable=SC2039,SC3045
         MAX_FD=$( ulimit -H -n ) ||
             warn "Could not query maximum file descriptor limit"
     esac
@@ -152,7 +153,7 @@ if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
       '' | soft) :;; #(
       *)
         # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
-        # shellcheck disable=SC3045 
+        # shellcheck disable=SC2039,SC3045
         ulimit -n "$MAX_FD" ||
             warn "Could not set maximum file descriptor limit to $MAX_FD"
     esac
@@ -197,11 +198,15 @@ if "$cygwin" || "$msys" ; then
     done
 fi
 
-# Collect all arguments for the java command;
-#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
-#     shell script including quotes and variable substitutions, so put them in
-#     double quotes to make sure that they get re-expanded; and
-#   * put everything else in single quotes, so that it's not re-expanded.
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
 
 set -- \
         "-Dorg.gradle.appname=$APP_BASE_NAME" \