ICU-22324 Small fixes for script moving folders to maven structure

- Symlinks to LICENSE, so that it is included in the .jar files
- Fixed version in the jar manifests (s/73/74/)
- Added Main-Class, Export-Package, some *-Title and *-Description

At this point the .jar files (including manifests) produced by ant / maven
are byte to byte identical, except for some small differences that are
expected and can be explained (will cover them in the email to the team)

icu4j/maven-migration/README_MAVEN.md

@@ -20,7 +20,7 @@ checkout `<feature_branch>`, and run script from where you copied it.
   Probably modify the step that produces the .jar files (in the C/C++ world)
 - done: The tests for localespi should become integration tests
 - We might want some integration tests to begin with
-- `LICENSE`, `security.policy`, anything else from `main/shared/` => LICENSE should be symlink.
+- done: `LICENSE`, `security.policy`, anything else from `main/shared/` => LICENSE should be symlink.
 - done: The `.lst` files. All tests pass without, we can probably delete them. But need more testing.
   If not, we need a way to generate them (right now I've copied them by hand)
 - Double-check dependencies.

icu4j/maven-migration/main/charset/pom.xml

@@ -15,7 +15,8 @@
 
   <properties>
     <icu4j.api.doc.root.dir>${project.basedir}/../..</icu4j.api.doc.root.dir>
-    <mf.Automatic-Module-Name>com.ibm.icu.charset</mf.Automatic-Module-Name>
+    <module-name>charset</module-name>
+    <proj.displayname>charset</proj.displayname>
   </properties>
 
   <dependencies>
@@ -55,4 +56,19 @@
 
   </dependencies>
 
+  <build>
+    <plugins>
+      <plugin>
+        <artifactId>maven-jar-plugin</artifactId>
+        <configuration>
+          <archive>
+            <manifestEntries>
+              <Export-Package>com.ibm.icu.charset</Export-Package>
+            </manifestEntries>
+          </archive>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+
 </project>

icu4j/maven-migration/main/core/pom.xml

@@ -53,6 +53,16 @@
           </execution>
         </executions>
       </plugin>
+      <plugin>
+        <artifactId>maven-jar-plugin</artifactId>
+        <configuration>
+          <archive>
+            <manifestEntries>
+              <Main-Class>com.ibm.icu.util.VersionInfo</Main-Class>
+            </manifestEntries>
+          </archive>
+        </configuration>
+      </plugin>
     </plugins>
   </build>
 

icu4j/maven-migration/main/framework/pom.xml

@@ -39,7 +39,18 @@
           </execution>
         </executions>
       </plugin>
+      <plugin>
+        <artifactId>maven-jar-plugin</artifactId>
+        <configuration>
+          <archive>
+            <manifestEntries>
+              <Main-Class>com.ibm.icu.dev.test.TestAll</Main-Class>
+            </manifestEntries>
+          </archive>
+        </configuration>
+      </plugin>
     </plugins>
   </build>
 
+
 </project>

icu4j/maven-migration/main/icu4j/pom.xml

@@ -16,6 +16,14 @@
 
   <properties>
     <icu4j.api.doc.root.dir>${project.basedir}/../..</icu4j.api.doc.root.dir>
+
+    <mf.Automatic-Module-Name>com.ibm.icu</mf.Automatic-Module-Name>
+    <mf.Bundle-SymbolicName>com.ibm.icu</mf.Bundle-SymbolicName>
+    <mf.Bundle-Name>ICU4J</mf.Bundle-Name>
+    <localTitle>International Components for Unicode for Java</localTitle>
+    <mf.Bundle-Description>${localTitle}</mf.Bundle-Description>
+    <mf.Implementation-Title>${localTitle}</mf.Implementation-Title>
+    <mf.Specification-Title>${localTitle}</mf.Specification-Title>
   </properties>
 
   <dependencies>
@@ -71,6 +79,17 @@
           </execution>
         </executions>
       </plugin>
+      <plugin>
+        <artifactId>maven-jar-plugin</artifactId>
+        <configuration>
+          <archive>
+            <manifestEntries>
+              <Main-Class>com.ibm.icu.util.VersionInfo</Main-Class>
+              <Export-Package>com.ibm.icu.lang,com.ibm.icu.math,com.ibm.icu.number,com.ibm.icu.text,com.ibm.icu.util</Export-Package>
+            </manifestEntries>
+          </archive>
+        </configuration>
+      </plugin>
     </plugins>
   </build>
 

icu4j/maven-migration/pom.xml

@@ -39,34 +39,40 @@
     <proj-title>International Components for Unicode for Java</proj-title>
     <proj.displayname>${project.artifactId}</proj.displayname>
 
-    <mf.Manifest-Version>1.0</mf.Manifest-Version>
-    <mf.Specification-Title>${proj-title} (${proj.displayname})</mf.Specification-Title>
-    <mf.Implementation-Title>${proj-title} (${proj.displayname})</mf.Implementation-Title>
-    <mf.Bundle-Description>${proj-title} (${proj.displayname})</mf.Bundle-Description>
-    <mf.Automatic-Module-Name>com.ibm.icu.${project.artifactId}</mf.Automatic-Module-Name>
-
-    <api.doc.version>73 Release Candidate</api.doc.version>
     <!-- Variables used to generate the javadoc -->
+    <api.doc.version>74 Release Candidate</api.doc.version>
     <icu4j.api.doc.window.title>ICU4J ${api.doc.version}</icu4j.api.doc.window.title>
     <icu4j.api.doc.header>ICU4J ${api.doc.version}</icu4j.api.doc.header>
     <icu4j.api.doc.copyright.footer>&lt;font size=-1&gt;Copyright © 2016 Unicode, Inc. and others.&lt;/font&gt;</icu4j.api.doc.copyright.footer>
     <!-- Needs to be overriden in sub-modules -->
     <icu4j.api.doc.root.dir>${project.basedir}</icu4j.api.doc.root.dir>
 
-    <mf.Specification-Version>73</mf.Specification-Version>
-    <mf.Implementation-Version>73.0.1</mf.Implementation-Version>
-    <mf.Bundle-Version>73.0.1</mf.Bundle-Version>
+    <!-- Used for the .jar Manifest files -->
+
+    <mf.Specification-Version>74</mf.Specification-Version>
+    <mf.Implementation-Version>74.0.1</mf.Implementation-Version>
+    <mf.Bundle-Version>74.0.1</mf.Bundle-Version>
+
+    <mf.Bundle-RequiredExecutionEnvironment>JavaSE-1.8</mf.Bundle-RequiredExecutionEnvironment>
+
+    <!-- For most modules artifactId does not have an "icu4j" prefix, so this is a good default -->
+    <module-name>${project.artifactId}</module-name>
+
+    <!-- Manifest fields that rarely change, if ever -->
+    <mf.Specification-Title>${proj-title} (${proj.displayname})</mf.Specification-Title>
+    <mf.Implementation-Title>${proj-title} (${proj.displayname})</mf.Implementation-Title>
+    <mf.Bundle-Description>${proj-title} (${proj.displayname})</mf.Bundle-Description>
+    <mf.Bundle-SymbolicName>com.ibm.icu.${module-name}</mf.Bundle-SymbolicName>
+    <mf.Automatic-Module-Name>com.ibm.icu.${module-name}</mf.Automatic-Module-Name>
+    <mf.Bundle-Name>ICU4J ${proj.displayname}</mf.Bundle-Name>
 
     <mf.Specification-Vendor>Unicode, Inc.</mf.Specification-Vendor>
     <mf.Implementation-Vendor>Unicode, Inc.</mf.Implementation-Vendor>
     <mf.Bundle-Vendor>Unicode, Inc.</mf.Bundle-Vendor>
     <mf.Implementation-Vendor-Id>org.unicode</mf.Implementation-Vendor-Id>
+    <mf.Manifest-Version>1.0</mf.Manifest-Version>
     <mf.Bundle-ManifestVersion>2</mf.Bundle-ManifestVersion>
-    <mf.Bundle-Name>ICU4J ${proj.displayname}</mf.Bundle-Name>
-
-    <mf.Automatic-Module-Name>com.ibm.icu.${project.artifactId}</mf.Automatic-Module-Name>
     <mf.Bundle-Copyright>© 2016 and later: Unicode, Inc. and others. License &amp; terms of use: http://www.unicode.org/copyright.html</mf.Bundle-Copyright>
-    <mf.Bundle-RequiredExecutionEnvironment>JavaSE-1.8</mf.Bundle-RequiredExecutionEnvironment>
   </properties>
 
   <build>

icu4j/maven-migration/toMaven.sh

@@ -148,11 +148,14 @@ function mainModuleToMaven() {
   echo "Migrating $1 to maven"
   moveMainModuleToMaven $1 classes main
   moveMainModuleToMaven $1 tests test
+  mkdir -p main/$MODULE_NAME/src/main/resources/
+  ln -s ../../../../../../LICENSE main/$MODULE_NAME/src/main/resources/LICENSE
 }
 
 function simpleModuleToMaven() {
   # 1. $1: component name (core, charset, etc)
   export MODULE_NAME=$1
+  export LICENSE_PATH=$2
   echo "Migrating $MODULE_NAME to maven"
 
   safeMoveDir com $MODULE_NAME/src $MODULE_NAME/src/main/java
@@ -160,6 +163,9 @@ function simpleModuleToMaven() {
 
   removeEclipseProjectFiles $MODULE_NAME
 
+  mkdir -p $MODULE_NAME/src/main/resources/
+  ln -s $LICENSE_PATH $MODULE_NAME/src/main/resources/LICENSE
+
   echo "  Remove empty folders from '$MODULE_NAME'"
   removeEmptyFolders $MODULE_NAME
 }
@@ -231,15 +237,15 @@ function moveCircDepTestOutOfCore() {
 # ===============================================================
 # Here starts the real script execution
 
+if [ -f "main/core/pom.xml" ]; then
+  echo "ERROR: looks like the structure was already migrated to maven?"
+  exit
+fi
 if [ ! -f "main/classes/core/build.xml" ]; then
   echo "ERROR: the current folder when running this script should be <icu_root>/icu4j"
   echo "It is currently $PWD."
   exit
 fi
-if [ -f "main/core/pom.xml" ]; then
-  echo "ERROR: looks like the structure was already migrated to maven?"
-  exit
-fi
 
 MVN_MIG_DIR="$(dirname "${BASH_SOURCE[0]}")"
 
@@ -269,10 +275,10 @@ mainModuleToMaven framework
 echo "===================================="
 echo "==== Migrating the root modules ===="
 echo "===================================="
-simpleModuleToMaven demos
-simpleModuleToMaven samples
-simpleModuleToMaven tools/build 
-simpleModuleToMaven tools/misc
+simpleModuleToMaven demos        ../../../../../LICENSE
+simpleModuleToMaven samples      ../../../../../LICENSE
+simpleModuleToMaven tools/build  ../../../../../../LICENSE
+simpleModuleToMaven tools/misc   ../../../../../../LICENSE
 
 echo "================================================================================="
 echo "==== Moving core unit tests that depend on non-core (circular dependencies) ====="

icu4j/maven-migration/tools/misc/pom.xml

@@ -31,4 +31,19 @@
     </dependency>
   </dependencies>
 
+  <build>
+    <plugins>
+      <plugin>
+        <artifactId>maven-jar-plugin</artifactId>
+        <configuration>
+          <archive>
+            <manifestEntries>
+              <Main-Class>com.ibm.icu.dev.tool.localeconverter.XLIFF2ICUConverter</Main-Class>
+            </manifestEntries>
+          </archive>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+
 </project>