[performance] avoid File.getCanonicalPath()

[jukzi]

File.getCanonicalPath() is a IO Operation that is costly especially on windows OS.
Instead use a NON-IO .toPath().normalize().toAbsolutePath().toString()

https://bugs.eclipse.org/bugs/show_bug.cgi?id=571614

[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.compiler.apt.tests/META-INF/MANIFEST.MF
org.eclipse.jdt.compiler.apt.tests/pom.xml
org.eclipse.jdt.compiler.tool.tests/META-INF/MANIFEST.MF
org.eclipse.jdt.compiler.tool.tests/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 0bcb12e9fb938929b0caace5658912157b32b550 Mon Sep 17 00:00:00 2001
From: Eclipse JDT Bot <jdt-bot@eclipse.org>
Date: Tue, 10 Dec 2024 11:20:55 +0000
Subject: [PATCH] Version bump(s) for 4.35 stream


diff --git a/org.eclipse.jdt.compiler.apt.tests/META-INF/MANIFEST.MF b/org.eclipse.jdt.compiler.apt.tests/META-INF/MANIFEST.MF
index 6ef32b06cf..7cac8a55de 100644
--- a/org.eclipse.jdt.compiler.apt.tests/META-INF/MANIFEST.MF
+++ b/org.eclipse.jdt.compiler.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.compiler.apt.tests;singleton:=true
-Bundle-Version: 1.3.600.qualifier
+Bundle-Version: 1.3.700.qualifier
 Bundle-Vendor: %providerName
 Bundle-Localization: plugin
 Bundle-RequiredExecutionEnvironment: JavaSE-17
diff --git a/org.eclipse.jdt.compiler.apt.tests/pom.xml b/org.eclipse.jdt.compiler.apt.tests/pom.xml
index 0675ac29f6..59e27d4176 100644
--- a/org.eclipse.jdt.compiler.apt.tests/pom.xml
+++ b/org.eclipse.jdt.compiler.apt.tests/pom.xml
@@ -19,7 +19,7 @@
     <relativePath>../tests-pom/</relativePath>
   </parent>
   <artifactId>org.eclipse.jdt.compiler.apt.tests</artifactId>
-  <version>1.3.600-SNAPSHOT</version>
+  <version>1.3.700-SNAPSHOT</version>
   <packaging>eclipse-test-plugin</packaging>
 
   <properties>
diff --git a/org.eclipse.jdt.compiler.tool.tests/META-INF/MANIFEST.MF b/org.eclipse.jdt.compiler.tool.tests/META-INF/MANIFEST.MF
index 935a43ecfd..c5f3056e24 100644
--- a/org.eclipse.jdt.compiler.tool.tests/META-INF/MANIFEST.MF
+++ b/org.eclipse.jdt.compiler.tool.tests/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: %pluginName
 Bundle-SymbolicName: org.eclipse.jdt.compiler.tool.tests
-Bundle-Version: 1.4.600.qualifier
+Bundle-Version: 1.4.700.qualifier
 Bundle-Vendor: %providerName
 Bundle-Localization: plugin
 Bundle-RequiredExecutionEnvironment: JavaSE-17
diff --git a/org.eclipse.jdt.compiler.tool.tests/pom.xml b/org.eclipse.jdt.compiler.tool.tests/pom.xml
index 9f094788a4..06a6878a01 100644
--- a/org.eclipse.jdt.compiler.tool.tests/pom.xml
+++ b/org.eclipse.jdt.compiler.tool.tests/pom.xml
@@ -19,7 +19,7 @@
     <relativePath>../tests-pom/</relativePath>
   </parent>
   <artifactId>org.eclipse.jdt.compiler.tool.tests</artifactId>
-  <version>1.4.600-SNAPSHOT</version>
+  <version>1.4.700-SNAPSHOT</version>
   <packaging>eclipse-test-plugin</packaging>
   <properties>
   	<testSuite>${project.artifactId}</testSuite>
-- 
2.47.1

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

[jukzi]

Found it as hotspot in org.eclipse.jdt.internal.compiler.batch.ClasspathDirectory. () while runnning NullTypeAnnotationTest
This PR reduces NullTypeAnnotationTest from 102 sec to 92 sec