ICU-21964 use a single LICENSE file

- make the icu4c and icu4j LICENSE files symlinks
- fix paths

CONTRIBUTING.md

@@ -97,7 +97,7 @@ _… and thanks for contributing!_
 
 ### License
 
-Please see [./icu4c/LICENSE](./icu4c/LICENSE) (C and J are under an identical license file.)
+Please see [./LICENSE](./LICENSE)
 
 > Copyright © 2021 and later Unicode, Inc. and others. All Rights Reserved.
 Unicode and the Unicode Logo are registered trademarks

README.md

@@ -33,9 +33,9 @@ Fuzzing | [![Fuzzing Status](https://oss-fuzz-build-logs.storage.googleapis.com/
 
 ### License
 
-Please see [./icu4c/LICENSE](./icu4c/LICENSE) (C and J are under an identical license file.)
+Please see [./LICENSE](./LICENSE)
 
 > Copyright © 2016 and later Unicode, Inc. and others. All Rights Reserved.
-Unicode and the Unicode Logo are registered trademarks 
+Unicode and the Unicode Logo are registered trademarks
 of Unicode, Inc. in the U.S. and other countries.
 [Terms of Use and License](http://www.unicode.org/copyright.html)

docs/userguide/icu/index.md

@@ -104,6 +104,6 @@ included, building, installing, etc.
 
 ## ICU License
 
-Current license: <https://github.com/unicode-org/icu/blob/main/icu4c/LICENSE>
+Current license: <https://github.com/unicode-org/icu/blob/main/LICENSE>
 
 See also FAQ section ["How is the ICU licensed"](icufaq/index#how-is-icu-licensed)

docs/userguide/icu/release.md

@@ -30,4 +30,4 @@ Changes in previous releases can also be found the main [ICU download page](http
 
 ## License Information
 
-The ICU projects (ICU4C and ICU4J) are hosted by the [Unicode Consortium](http://www.unicode.org/). The ICU binary and source files are distributed under the [UNICODE DATA FILES AND SOFTWARE LICENSE](http://www.unicode.org/copyright.html). The full copy of the license and third party software licenses are available in [LICENSE](https://github.com/unicode-org/icu/blob/main/icu4j/main/shared/licenses/LICENSE) file included in this package.
+The ICU projects (ICU4C and ICU4J) are hosted by the [Unicode Consortium](https://www.unicode.org/). The ICU binary and source files are distributed under the [Unicode Data Files and Software License](https://www.unicode.org/license.txt). The full copy of the license and third party software licenses are available in the [LICENSE](https://github.com/unicode-org/icu/blob/main/LICENSE) file included in this package.

docs/userguide/icu4c/index.md

@@ -56,7 +56,7 @@ The ICU homepage also links to related information about writing internationaliz
 | Online ICU Demos                                   | <https://icu4c-demos.unicode.org/icu-bin/icudemos>                           |
 | Contacts and Bug Reports/Feature Requests          | <https://icu.unicode.org/contacts>                                   |
 
-**Important:** Please make sure you understand the [Copyright and License Information](https://github.com/unicode-org/icu/blob/main/icu4c/LICENSE).
+**Important:** Please make sure you understand the [Copyright and License Information](https://github.com/unicode-org/icu/blob/main/LICENSE).
 
 ## What Is New In The Current Release?
 

icu4c/LICENSE

@@ -0,0 +1 @@
+../LICENSE

icu4j/main/shared/licenses/LICENSE

@@ -0,0 +1 @@
+../../../../LICENSE

icu4j/maven-build/maven-icu4j/pom.xml

@@ -9,14 +9,14 @@
 -->
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-  
+
   <parent>
     <groupId>com.ibm.icu</groupId>
     <artifactId>icu4j-root</artifactId>
     <version>73.1-SNAPSHOT</version>
     <!-- default relativePath for parent -->
   </parent>
-  
+
   <modelVersion>4.0.0</modelVersion>
 
   <groupId>com.ibm.icu</groupId>
@@ -56,7 +56,7 @@
               </sources>
             </configuration>
           </execution>
-          
+
           <!-- add directories with test code -->
           <execution>
             <id>add-test-source</id>
@@ -223,14 +223,14 @@
         </executions>
       </plugin>
 
-      <!-- 
+      <!--
         Process and transform the resource files before they get packaged up in the .jar file.
       -->
       <plugin>
           <groupId>org.codehaus.mojo</groupId>
           <artifactId>exec-maven-plugin</artifactId>
           <executions>
-              <!-- 
+              <!--
                 Replicate the creation of fullLocaleNames.lst files in every subdirectory of the dir of copied data
                 that the Ant build.xml file encodes.
               -->
@@ -254,7 +254,8 @@
                   <configuration>
                       <executable>cp</executable>
                       <arguments>
-                        <argument>../../../icu4c/LICENSE</argument>
+                        <!-- Note! we use the license in the icu4j subtree, because we might be running out of an unpacked icu4j source .jar -->
+                        <argument>../../main/shared/licenses/LICENSE</argument>
                         <argument>${project.build.directory}/classes</argument>
                       </arguments>
                   </configuration>

icu4j/maven-build/pom.xml

@@ -20,15 +20,15 @@
   <name>ICU4J Root</name>
   <description>
     International Component for Unicode for Java (ICU4J) is a mature, widely used Java library
-    providing Unicode and Globalization support 
+    providing Unicode and Globalization support
   </description>
   <url>https://icu.unicode.org/</url>
   <inceptionYear>2001</inceptionYear>
 
   <licenses>
     <license>
       <name>Unicode/ICU License</name>
-      <url>https://raw.githubusercontent.com/unicode-org/icu/main/icu4c/LICENSE</url>
+      <url>https://raw.githubusercontent.com/unicode-org/icu/main/LICENSE</url>
       <distribution>repo</distribution>
     </license>
   </licenses>
@@ -149,7 +149,7 @@
   </distributionManagement>
 
   <profiles>
-    <!-- 
+    <!--
       For testing localespi using the Java extensions feature, which last existed in Java 8.
       ICU4J currently has a minimum supported version of 8.
     -->
@@ -180,7 +180,7 @@
   </profiles>
 
   <properties>
-    <!-- 
+    <!--
       Main ICU4J version number.
       Note: This version string must also be repeated in <version> of this root pom.xml above.
       Note: Keep the `jar.spec.version` number in sync with this value, too.

icu4j/maven/icu4j-charset/pom.xml

@@ -21,7 +21,7 @@
   <licenses>
     <license>
       <name>Unicode/ICU License</name>
-      <url>https://raw.githubusercontent.com/unicode-org/icu/main/icu4c/LICENSE</url>
+      <url>https://raw.githubusercontent.com/unicode-org/icu/main/LICENSE</url>
       <distribution>repo</distribution>
     </license>
   </licenses>

icu4j/maven/icu4j-localespi/pom.xml

@@ -21,7 +21,7 @@
   <licenses>
     <license>
       <name>Unicode/ICU License</name>
-      <url>https://raw.githubusercontent.com/unicode-org/icu/main/icu4c/LICENSE</url>
+      <url>https://raw.githubusercontent.com/unicode-org/icu/main/LICENSE</url>
       <distribution>repo</distribution>
     </license>
   </licenses>

icu4j/maven/icu4j/pom.xml

@@ -18,15 +18,15 @@
   <name>ICU4J</name>
   <description>
     International Component for Unicode for Java (ICU4J) is a mature, widely used Java library
-    providing Unicode and Globalization support 
+    providing Unicode and Globalization support
   </description>
   <url>https://icu.unicode.org/</url>
   <inceptionYear>2001</inceptionYear>
 
   <licenses>
     <license>
       <name>Unicode/ICU License</name>
-      <url>https://raw.githubusercontent.com/unicode-org/icu/main/icu4c/LICENSE</url>
+      <url>https://raw.githubusercontent.com/unicode-org/icu/main/LICENSE</url>
       <distribution>repo</distribution>
     </license>
   </licenses>

tools/unicodetools/license.html

@@ -8,7 +8,7 @@
 <h2>ICU License - moved to LICENSE</h2>
 
 <p>The ICU license is now in plain text format, see
-<a href="https://github.com/unicode-org/icu/blob/main/icu4j/main/shared/licenses/LICENSE">LICENSE</a>.
+<a href="https://github.com/unicode-org/icu/blob/main/LICENSE">LICENSE</a>.
 Update links and software appropriately.</p>
 
 <i>© 2016 and later: Unicode, Inc. and others. License &amp; terms of use: http://www.unicode.org/copyright.html</i>