exclude icu4j from the final jar

pom.xml

@@ -1,8 +1,4 @@
-<!--
+<!-- ~ Copyright (c) 2012-2016 The ANTLR Project. All rights reserved. ~ Use of this file is governed by the BSD 3-clause license that ~ can be found in the LICENSE.txt file in the project root. -->
-  ~ Copyright (c) 2012-2016 The ANTLR Project. All rights reserved.
-  ~ Use of this file is governed by the BSD 3-clause license that
-  ~ can be found in the LICENSE.txt file in the project root.
-  -->
 
 <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/maven-v4_0_0.xsd">
 	<modelVersion>4.0.0</modelVersion>

tool/pom.xml

@@ -1,8 +1,4 @@
-<!--
+<!-- ~ Copyright (c) 2012-2016 The ANTLR Project. All rights reserved. ~ Use of this file is governed by the BSD 3-clause license that ~ can be found in the LICENSE.txt file in the project root. -->
-  ~ Copyright (c) 2012-2016 The ANTLR Project. All rights reserved.
-  ~ Use of this file is governed by the BSD 3-clause license that
-  ~ can be found in the LICENSE.txt file in the project root.
-  -->
 
 <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/maven-v4_0_0.xsd">
 	<modelVersion>4.0.0</modelVersion>
@@ -15,7 +11,6 @@
 	<name>ANTLR 4 Tool</name>
 	<url>http://www.antlr.org</url>
 	<description>The ANTLR 4 grammar compiler.</description>
-
 	<dependencies>
 		<dependency>
 			<groupId>org.antlr</groupId>
@@ -48,7 +43,6 @@
 			<version>58.2</version>
 		</dependency>
 	</dependencies>
-
 	<build>
 		<sourceDirectory>src</sourceDirectory>
 		<testResources>
@@ -114,6 +108,11 @@
 							<createDependencyReducedPom>false</createDependencyReducedPom>
 							<shadedArtifactAttached>true</shadedArtifactAttached>
 							<shadedClassifierName>complete</shadedClassifierName>
+							<artifactSet>
+								<excludes>
+									<exclude>com.ibm.icu:*</exclude>
+								</excludes>
+							</artifactSet>
 						</configuration>
 						<goals>
 							<goal>shade</goal>
@@ -121,27 +120,7 @@
 					</execution>
 				</executions>
 			</plugin>
-      <!-- can't get this to add bundle items
+			<!-- can't get this to add bundle items <plugin> <groupId>org.apache.felix</groupId> <artifactId>maven-bundle-plugin</artifactId> <version>2.5.4</version> <executions> <execution> <id>bundle-manifest</id> <phase>process-classes</phase> <configuration> <instructions> <Bundle-SymbolicName>org.antlr.antlr4-tool</Bundle-SymbolicName> </instructions> </configuration> <goals> <goal>manifest</goal> </goals> </execution> </executions> </plugin> -->
-      <plugin>
-        <groupId>org.apache.felix</groupId>
-        <artifactId>maven-bundle-plugin</artifactId>
-        <version>2.5.4</version>
-        <executions>
-          <execution>
-            <id>bundle-manifest</id>
-            <phase>process-classes</phase>
-            <configuration>
-              <instructions>
-                <Bundle-SymbolicName>org.antlr.antlr4-tool</Bundle-SymbolicName>
-              </instructions>
-            </configuration>
-            <goals>
-              <goal>manifest</goal>
-            </goals>
-          </execution>
-        </executions>
-      </plugin>
-      -->
 			<plugin> <!-- this just jars up tool stuff and sets main class -->
 				<artifactId>maven-jar-plugin</artifactId>
 				<version>3.0.0</version>
@@ -174,8 +153,7 @@
 				<groupId>com.webguys</groupId>
 				<artifactId>string-template-maven-plugin</artifactId>
 				<version>1.1</version>
-        <!-- this nonsense is for some reason needed to make this plugin
+				<!-- this nonsense is for some reason needed to make this plugin work with maven 3 -->
-             work with maven 3 -->
 				<dependencies>
 					<dependency>
 						<groupId>org.twdata.maven</groupId>