[JENKINS-68417] Revert LogRecord tricks

[jglick]

Essentially reverting #324 (slight simpification to timing of format in the process). Essentially the same fix as jenkinsci/jenkins#6643. Here the calculus is simpler since any log records appearing in the handler will need to be formatted (we write them to disk files) so there is no justification for deferring the message format expansion.

Testing in pipeline-groovy-lib-plugin:

diff --git pom.xml pom.xml
index 9ee4e40..98f9e92 100644
--- pom.xml
+++ pom.xml
@@ -63,15 +63,15 @@
     </pluginRepositories>
     <properties>
         <changelist>999999-SNAPSHOT</changelist>
-        <jenkins.version>2.289.1</jenkins.version>
+        <jenkins.version>2.355-SNAPSHOT</jenkins.version> <!-- TODO https://github.com/jenkinsci/jenkins/pull/6643 -->
         <gitHubRepo>jenkinsci/${project.artifactId}-plugin</gitHubRepo>
     </properties>
     <dependencyManagement>
         <dependencies>
             <dependency>
                 <groupId>io.jenkins.tools.bom</groupId>
-                <artifactId>bom-2.289.x</artifactId>
-                <version>1008.vb9e22885c9cf</version>
+                <artifactId>bom-2.332.x</artifactId>
+                <version>1342.v729ca_3818e88</version>
                 <scope>import</scope>
                 <type>pom</type>
             </dependency>
@@ -203,5 +203,11 @@
             <version>1.10.1</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.jenkins-ci.plugins</groupId>
+            <artifactId>support-core</artifactId>
+            <version>999999-SNAPSHOT</version> <!-- TODO https://github.com/jenkinsci/support-core-plugin/pull/376 -->
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 </project>
diff --git src/test/java/org/jenkinsci/plugins/workflow/libs/LibraryMemoryTest.java src/test/java/org/jenkinsci/plugins/workflow/libs/LibraryMemoryTest.java
index 59c9d05..dad9e09 100644
--- src/test/java/org/jenkinsci/plugins/workflow/libs/LibraryMemoryTest.java
+++ src/test/java/org/jenkinsci/plugins/workflow/libs/LibraryMemoryTest.java
@@ -26,6 +26,7 @@ package org.jenkinsci.plugins.workflow.libs;
 
 import groovy.lang.MetaClass;
 import hudson.PluginManager;
+import hudson.WebAppMain;
 import java.lang.ref.WeakReference;
 import java.lang.reflect.Method;
 import java.util.ArrayList;
@@ -65,6 +66,9 @@ public class LibraryMemoryTest {
     }
     @Issue("JENKINS-50223")
     @Test public void loaderReleased() throws Exception {
+        Method installLogger = WebAppMain.class.getDeclaredMethod("installLogger");
+        installLogger.setAccessible(true);
+        installLogger.invoke(new WebAppMain());
         sampleRepo.init();
         sampleRepo.write("src/p/C.groovy", "package p; class C {}");
         sampleRepo.write("vars/leak.groovy", "def call() {def c = node {new p.C()}; [this, c].each {" + LibraryMemoryTest.class.getName() + ".register(it)}}");

[jglick]

(In draft as per jenkinsci/jenkins#6643 (comment).)

rewritten