tests: use nanoTime for measurements

[jukzi]

• System.currentTimeMillis() is not guaranteed to be monotonic
• removed some related dead code
• added missing volatile modifier

[eclipse-jdt-bot]

This pull request changes some projects for the first time in this development cycle.
Therefore the following files need a version increment:

org.eclipse.jdt.apt.pluggable.tests/META-INF/MANIFEST.MF
org.eclipse.jdt.apt.pluggable.tests/pom.xml
org.eclipse.jdt.apt.tests/META-INF/MANIFEST.MF
org.eclipse.jdt.apt.tests/pom.xml
org.eclipse.jdt.core.tests.performance/META-INF/MANIFEST.MF
org.eclipse.jdt.core.tests.performance/pom.xml

An additional commit containing all the necessary changes was pushed to the top of this PR's branch. To obtain these changes (for example if you want to push more changes) either fetch from your fork or apply the git patch.

Git patch

From db435b82aae5e2fd7d9c9dcae82eecf339cf3a7c Mon Sep 17 00:00:00 2001
From: Eclipse JDT Bot <[email protected]>
Date: Tue, 3 Dec 2024 12:12:18 +0000
Subject: [PATCH] Version bump(s) for 4.35 stream


diff --git a/org.eclipse.jdt.apt.pluggable.tests/META-INF/MANIFEST.MF b/org.eclipse.jdt.apt.pluggable.tests/META-INF/MANIFEST.MF
index 1b6d60b40b..3b5a7f5d84 100644
--- a/org.eclipse.jdt.apt.pluggable.tests/META-INF/MANIFEST.MF
+++ b/org.eclipse.jdt.apt.pluggable.tests/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: %pluginName
 Bundle-SymbolicName: org.eclipse.jdt.apt.pluggable.tests;singleton:=true
-Bundle-Version: 3.6.600.qualifier
+Bundle-Version: 3.6.700.qualifier
 Bundle-Activator: org.eclipse.jdt.apt.pluggable.tests.Apt6TestsPlugin
 Bundle-Localization: plugin
 Require-Bundle: org.junit,
diff --git a/org.eclipse.jdt.apt.pluggable.tests/pom.xml b/org.eclipse.jdt.apt.pluggable.tests/pom.xml
index a4a3f37648..85e08f750f 100644
--- a/org.eclipse.jdt.apt.pluggable.tests/pom.xml
+++ b/org.eclipse.jdt.apt.pluggable.tests/pom.xml
@@ -19,7 +19,7 @@
     <relativePath>../tests-pom/</relativePath>
   </parent>
   <artifactId>org.eclipse.jdt.apt.pluggable.tests</artifactId>
-  <version>3.6.600-SNAPSHOT</version>
+  <version>3.6.700-SNAPSHOT</version>
   <packaging>eclipse-test-plugin</packaging>
   <properties>
   	<testSuite>${project.artifactId}</testSuite>
diff --git a/org.eclipse.jdt.apt.tests/META-INF/MANIFEST.MF b/org.eclipse.jdt.apt.tests/META-INF/MANIFEST.MF
index 5fa3f3bff4..7c3b0f0825 100644
--- a/org.eclipse.jdt.apt.tests/META-INF/MANIFEST.MF
+++ b/org.eclipse.jdt.apt.tests/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: %pluginName
 Bundle-SymbolicName: org.eclipse.jdt.apt.tests; singleton:=true
-Bundle-Version: 3.6.600.qualifier
+Bundle-Version: 3.6.700.qualifier
 Bundle-ClassPath: apt.jar,
  aptext.jar,
  .
diff --git a/org.eclipse.jdt.apt.tests/pom.xml b/org.eclipse.jdt.apt.tests/pom.xml
index 6204335e33..b1a4674e14 100644
--- a/org.eclipse.jdt.apt.tests/pom.xml
+++ b/org.eclipse.jdt.apt.tests/pom.xml
@@ -19,7 +19,7 @@
     <relativePath>../tests-pom/</relativePath>
   </parent>
   <artifactId>org.eclipse.jdt.apt.tests</artifactId>
-  <version>3.6.600-SNAPSHOT</version>
+  <version>3.6.700-SNAPSHOT</version>
   <packaging>eclipse-test-plugin</packaging>
   
   <build>
diff --git a/org.eclipse.jdt.core.tests.performance/META-INF/MANIFEST.MF b/org.eclipse.jdt.core.tests.performance/META-INF/MANIFEST.MF
index 0cfafbd6ec..f621f5333e 100644
--- a/org.eclipse.jdt.core.tests.performance/META-INF/MANIFEST.MF
+++ b/org.eclipse.jdt.core.tests.performance/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: %pluginName
 Bundle-SymbolicName: org.eclipse.jdt.core.tests.performance
-Bundle-Version: 3.12.550.qualifier
+Bundle-Version: 3.12.650.qualifier
 Bundle-Vendor: %providerName
 Bundle-Localization: plugin
 Export-Package: org.eclipse.jdt.core.tests.performance,
diff --git a/org.eclipse.jdt.core.tests.performance/pom.xml b/org.eclipse.jdt.core.tests.performance/pom.xml
index dbe003551a..674ca12732 100644
--- a/org.eclipse.jdt.core.tests.performance/pom.xml
+++ b/org.eclipse.jdt.core.tests.performance/pom.xml
@@ -19,7 +19,7 @@
     <relativePath>../tests-pom/</relativePath>
   </parent>
   <artifactId>org.eclipse.jdt.core.tests.performance</artifactId>
-  <version>3.12.550-SNAPSHOT</version>
+  <version>3.12.650-SNAPSHOT</version>
   <packaging>eclipse-test-plugin</packaging>
   <properties>
   	<testSuite>${project.artifactId}</testSuite>
-- 
2.47.0

Further information are available in Common Build Issues - Missing version increments.