Move o.e.help.base to Java 21

It's already transitive dependency through Lucene.

Author: akurtakov

ua/org.eclipse.help.base/.classpath

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-17"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-21"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="src" output="bin2" path="src_ant"/>

ua/org.eclipse.help.base/.settings/org.eclipse.jdt.core.prefs

@@ -7,9 +7,9 @@ org.eclipse.jdt.core.compiler.annotation.nullable=org.eclipse.jdt.annotation.Nul
 org.eclipse.jdt.core.compiler.annotation.nullanalysis=disabled
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
 org.eclipse.jdt.core.compiler.codegen.methodParameters=do not generate
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=17
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=21
 org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
-org.eclipse.jdt.core.compiler.compliance=17
+org.eclipse.jdt.core.compiler.compliance=21
 org.eclipse.jdt.core.compiler.debug.lineNumber=generate
 org.eclipse.jdt.core.compiler.debug.localVariable=generate
 org.eclipse.jdt.core.compiler.debug.sourceFile=generate
@@ -101,7 +101,7 @@ org.eclipse.jdt.core.compiler.problem.unusedTypeParameter=ignore
 org.eclipse.jdt.core.compiler.problem.unusedWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.varargsArgumentNeedCast=warning
 org.eclipse.jdt.core.compiler.release=enabled
-org.eclipse.jdt.core.compiler.source=17
+org.eclipse.jdt.core.compiler.source=21
 org.eclipse.jdt.core.formatter.align_assignment_statements_on_columns=false
 org.eclipse.jdt.core.formatter.align_fields_grouping_blank_lines=2147483647
 org.eclipse.jdt.core.formatter.align_type_members_on_columns=false

ua/org.eclipse.help.base/META-INF/MANIFEST.MF

@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: %help_base_plugin_name
 Bundle-SymbolicName: org.eclipse.help.base; singleton:=true
-Bundle-Version: 4.4.700.qualifier
+Bundle-Version: 4.5.0.qualifier
 Bundle-Activator: org.eclipse.help.internal.base.HelpBasePlugin
 Bundle-Vendor: %providerName
 Bundle-Localization: plugin
@@ -47,6 +47,6 @@ Require-Bundle: org.eclipse.ant.core;bundle-version="[3.2.200,4.0.0)";resolution
  org.apache.lucene.core;bundle-version="[10.0.0,11.0.0)",
  org.apache.lucene.analysis-smartcn;bundle-version="[10.0.0,11.0.0)"
 Import-Package: org.eclipse.equinox.http.jetty;resolution:=optional
-Bundle-RequiredExecutionEnvironment: JavaSE-17
+Bundle-RequiredExecutionEnvironment: JavaSE-21
 Bundle-ActivationPolicy: lazy
 Automatic-Module-Name: org.eclipse.help.base

ua/org.eclipse.help.base/pom.xml

@@ -18,7 +18,7 @@
   </parent>
   <groupId>org.eclipse.help</groupId>
   <artifactId>org.eclipse.help.base</artifactId>
-  <version>4.4.700-SNAPSHOT</version>
+  <version>4.5.0-SNAPSHOT</version>
   <packaging>eclipse-plugin</packaging>
   <properties>
     <defaultSigning-excludeInnerJars>true</defaultSigning-excludeInnerJars>