MINOR: Remove unnecessary license generation code in wrapper.gradle (#7742)

Newer versions of Gradle handle this automatically. Tested with Gradle 5.6.

Credit to @granthenke for the tip.

Reviewers: Manikumar Reddy <manikumar.reddy@gmail.com>

build.gradle

@@ -130,6 +130,7 @@ if (file('.git').exists()) {
         'PULL_REQUEST_TEMPLATE.md',
         'gradlew',
         'gradlew.bat',
+        'gradle/wrapper/gradle-wrapper.properties',
         'TROGDOR.md',
         '**/README.md',
         '**/id_rsa',

gradle/wrapper/gradle-wrapper.properties

@@ -1,19 +1,5 @@
-#
-# Copyright 2017 the original author or authors.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#    http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.0-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.2-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

gradlew

@@ -1,18 +1,20 @@
 #!/usr/bin/env sh
+
 #
-# Copyright 2017 the original author or authors.
+# Copyright 2015 the original author or authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-#    http://www.apache.org/licenses/LICENSE-2.0
+#      https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+#
 
 ##############################################################################
 ##
@@ -42,7 +44,7 @@ APP_NAME="Gradle"
 APP_BASE_NAME=`basename "$0"`
 
 # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS='"-Xmx64m"'
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD="maximum"
@@ -82,7 +84,7 @@ esac
 # Loop in case we encounter an error.
 for attempt in 1 2 3; do
   if [ ! -e $APP_HOME/gradle/wrapper/gradle-wrapper.jar ]; then
-    if ! curl -s -S --retry 3 -L -o "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" "https://raw.githubusercontent.com/gradle/gradle/v5.0.0/gradle/wrapper/gradle-wrapper.jar"; then
+    if ! curl -s -S --retry 3 -L -o "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" "https://raw.githubusercontent.com/gradle/gradle/v5.6.2/gradle/wrapper/gradle-wrapper.jar"; then
       rm -f "$APP_HOME/gradle/wrapper/gradle-wrapper.jar"
       # Pause for a bit before looping in case the server throttled us.
       sleep 5
@@ -136,8 +138,8 @@ if $darwin; then
     GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
 fi
 
-# For Cygwin, switch paths to Windows format before running java
-if $cygwin ; then
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
     APP_HOME=`cygpath --path --mixed "$APP_HOME"`
     CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
     JAVACMD=`cygpath --unix "$JAVACMD"`

wrapper.gradle

@@ -27,21 +27,6 @@ wrapper {
     distributionType = Wrapper.DistributionType.ALL
 }
 
-def licenseString = """#
-# Copyright 2017 the original author or authors.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#    http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License."""
-
 // Custom task to inject support for downloading the gradle wrapper jar if it doesn't exist.
 // This allows us to avoid checking in the jar to our repository.
 // Additionally adds a license header to the wrapper while editing the file contents.
@@ -78,7 +63,6 @@ task bootstrapWrapper() {
         def wrapperScript = wrapper.scriptFile
         def wrapperLines = wrapperScript.readLines()
         wrapperScript.withPrintWriter { out ->
-            def licenseWritten = false
             def bootstrapWritten = false
             wrapperLines.each { line ->
                 // Print the wrapper bootstrap before the first usage of the wrapper jar.
@@ -87,36 +71,13 @@ task bootstrapWrapper() {
                     bootstrapWritten = true
                 }
                 out.print(line)
-                // Print the licence after the shebang.
-                if(!licenseWritten && line.contains("#!/usr/bin/env sh")) {
                 out.println()
-                    out.print(licenseString)
-                    licenseWritten = true
-                }
-                out.println() // New Line
             }
         }
     }
 }
 wrapper.finalizedBy bootstrapWrapper
 
-// Custom task to add a license header to the gradle-wrapper.properties file.
-task bootstrapWrapperProperties() {
-    // In the doLast block so this runs when the task is called and not during project configuration.
-    doLast {
-        def wrapperProperties = wrapper.propertiesFile
-        def wrapperLines = wrapperProperties.readLines()
-        wrapperProperties.withPrintWriter { out ->
-            // Print the license
-            out.println(licenseString)
-            wrapperLines.each { line ->
-                out.println(line)
-            }
-        }
-    }
-}
-wrapper.finalizedBy bootstrapWrapperProperties
-
 // Remove the generated batch file since we don't test building in the Windows environment.
 task removeWindowsScript(type: Delete) {
     delete "$rootDir/gradlew.bat"