[#1504] add legacy build for Java 5-6-7

.github/workflows/ci.yml

@@ -31,13 +31,27 @@ jobs:
     strategy:
       matrix:
         java-version: [ 6, 7 ]
-        os: [ubuntu-latest, macos-latest, windows-latest]
+        os: [ubuntu-latest, windows-latest]
 
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout
         uses: actions/checkout@v2
 
+      - name: Configure Java 8
+        uses: actions/setup-java@v2
+        with:
+          distribution: 'zulu'
+          java-version: 8
+          cache: gradle
+
+      - name: Build with Java 8 once to download dependencies; HTTPS does not work with older Java versions
+        continue-on-error: true
+        uses: gradle/gradle-build-action@v2
+        with:
+          gradle-version: 1.12
+          arguments: assemble --no-daemon
+
       - name: Configure JDK ${{ matrix.java-version }}
         uses: actions/setup-java@v2
         with:
@@ -49,5 +63,6 @@ jobs:
         continue-on-error: true
         uses: gradle/gradle-build-action@v2
         with:
-          gradle-version: 6.9
-          arguments: build
+          gradle-version: 1.12
+          build-root-directory: picocli-legacy-tests/
+          arguments: clean build --no-daemon

picocli-legacy-tests/README.md

@@ -0,0 +1,28 @@
+# Picocli Legacy Tests
+
+This project runs the tests for the main `picocli` project in a Java 5 environment.
+
+While the directory structure may suggest that this is a subproject of the `picocli` project, it is actually a standalone project, not a module.
+
+This project does not publish any artifacts.
+
+Note to self: do the following before running this build:
+
+```
+: start command prompt if we are running in Powershell
+cmd
+
+: ensure we are not using the OneDrive user home directory
+set JAVA_OPTS=-Duser.home=C:\Users\remko\.m2\repository
+
+: build the project once with Java 8 so that all dependencies are downloaded and cached
+cd ..
+gradlew assemble
+
+: now build the project with Java 5, 6 and 7
+cd picocli-legacy-tests
+set JAVA_HOME=C:\apps\jdk1.5.0_22
+gradlew clean build
+set JAVA_HOME=C:\apps\jdk1.6.0_45
+gradlew clean build
+```

picocli-legacy-tests/build.gradle

@@ -0,0 +1,51 @@
+group 'info.picocli'
+description 'Compile and test the picocli project in legacy Java environments.'
+version "$projectVersion"
+
+apply plugin: 'java'
+
+repositories {
+    // do not use mavenCentral(): it uses HTTP in this old version of Gradle
+    // mavenCentral()
+    maven { url "https://repo.maven.apache.org/maven2/" }
+    maven { url 'https://repo.spring.io/libs-snapshot' }
+}
+
+configurations.all {
+    resolutionStrategy {
+        // avoid "Could not resolve junit:junit-dep:[4.9,)" caused by stefanbirkner:system-rules when building offline
+        force "junit:junit-dep:$junitDepVersion"
+    }
+}
+dependencies {
+    testCompile "junit:junit:$junitVersion",
+        "org.hamcrest:hamcrest-core:$hamcrestCoreVersion",
+        "org.fusesource.jansi:jansi:$jansiVersion",
+        "com.github.stefanbirkner:system-rules:$systemRulesVersion",
+        "pl.pragmatists:JUnitParams:1.1.1"
+}
+
+sourceCompatibility = 1.5
+targetCompatibility = 1.5
+
+compileJava.options.encoding = "UTF-8"
+compileTestJava.options.encoding = "UTF-8"
+
+sourceSets.main.java.srcDirs = ['../src/main/java']
+sourceSets.test.java.srcDirs = ['../src/test/java']
+sourceSets.test.resources.srcDirs = ['../src/test/resources']
+sourceSets {
+    test {
+        java {
+            exclude 'some/unwanted/package/**'
+        }
+    }
+}
+
+tasks.withType(JavaCompile) {
+    options.compilerArgs << '-Xlint:unchecked' << '-Xlint:deprecation'
+}
+
+task wrapper(type: Wrapper) {
+    gradleVersion = '1.12'
+}

picocli-legacy-tests/gradle.properties

@@ -0,0 +1,7 @@
+hamcrestCoreVersion = 1.3
+ivyVersion          = 2.4.0
+jansiVersion        = 2.1.0
+junitDepVersion     = 4.11
+junitVersion        = 4.12
+projectVersion      = 4.6.3-SNAPSHOT
+systemRulesVersion  = 1.17.1

picocli-legacy-tests/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,7 @@
+#Tue Dec 07 18:10:02 JST 2021
+distributionBase=GRADLE_USER_HOME
+distributionPath=gradle/wrapper/dists
+zipStoreBase=PROJECT
+zipStorePath=gradle/wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-1.12-bin.zip
+#distributionUrl=file\://${user.home}/.gradle/caches/gradle-1.12-bin.zip

picocli-legacy-tests/gradlew

@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+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 $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"

picocli-legacy-tests/gradlew.bat

@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega