├── settings.gradle.kts ├── gradle ├── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties └── libs.versions.toml ├── renovate.json ├── src ├── jmh │ └── kotlin │ │ └── com │ │ └── imanushin │ │ └── use │ │ └── performance │ │ └── benchmarks │ │ ├── Temp.kt │ │ ├── NoopAutoCloseable.kt │ │ └── CompareInlineUseVsLambdaUse.kt └── main │ └── kotlin │ └── com │ └── imanushin │ └── use │ └── performance │ └── NoInlineUse.kt ├── README.md ├── LICENSE ├── .github └── workflows │ └── ci.yaml ├── .gitignore ├── results ├── 1.txt ├── 2.txt └── 3.txt ├── gradlew.bat └── gradlew /settings.gradle.kts: -------------------------------------------------------------------------------- 1 | rootProject.name = "use-performance-test" 2 | 3 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/imanushin/use-performance-test/HEAD/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /renovate.json: -------------------------------------------------------------------------------- 1 | { 2 | "$schema": "https://docs.renovatebot.com/renovate-schema.json", 3 | "extends": [ 4 | "config:recommended" 5 | ] 6 | } 7 | -------------------------------------------------------------------------------- /src/jmh/kotlin/com/imanushin/use/performance/benchmarks/Temp.kt: -------------------------------------------------------------------------------- 1 | package com.imanushin.use.performance.benchmarks 2 | 3 | class Temp(val isValid: String) -------------------------------------------------------------------------------- /gradle/libs.versions.toml: -------------------------------------------------------------------------------- 1 | [versions] 2 | jmh = "1.37" 3 | 4 | [libraries] 5 | 6 | [plugins] 7 | me-champeau-jmh = { id = "me.champeau.jmh", version = "0.7.2" } 8 | com-github-ben-manes-versions = { id = "com.github.ben-manes.versions", version = "0.51.0" } -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | distributionBase=GRADLE_USER_HOME 2 | distributionPath=wrapper/dists 3 | distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-all.zip 4 | validateDistributionUrl=true 5 | zipStoreBase=GRADLE_USER_HOME 6 | zipStorePath=wrapper/dists 7 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # use-performance-test 2 | Performance test of the kotlin use 3 | 4 | External: 5 | 6 | * [discuss.kotlinlang.org](https://discuss.kotlinlang.org/t/why-autocloseable-use-method-is-inlined/5407/5) 7 | * [medium.org](https://medium.com/@imanushin/jmh-how-to-md-9b5df8959874) 8 | * [habr.com](https://habr.com/en/post/349914/) (Russian) -------------------------------------------------------------------------------- /src/jmh/kotlin/com/imanushin/use/performance/benchmarks/NoopAutoCloseable.kt: -------------------------------------------------------------------------------- 1 | package com.imanushin.use.performance.benchmarks 2 | 3 | import org.openjdk.jmh.infra.Blackhole 4 | 5 | class NoopAutoCloseable(private val blackhole: Blackhole) : AutoCloseable { 6 | 7 | override fun close() { 8 | blackhole.consume(0) 9 | } 10 | } -------------------------------------------------------------------------------- /src/main/kotlin/com/imanushin/use/performance/NoInlineUse.kt: -------------------------------------------------------------------------------- 1 | package com.imanushin.use.performance 2 | 3 | fun T.useNoInline(block: (T) -> R): R { 4 | var exception: Throwable? = null 5 | try { 6 | return block(this) 7 | } catch (e: Throwable) { 8 | exception = e 9 | throw e 10 | } finally { 11 | this.closeFinally(exception) 12 | } 13 | } 14 | 15 | internal fun AutoCloseable?.closeFinally(cause: Throwable?) = when { 16 | this == null -> { 17 | } 18 | cause == null -> close() 19 | else -> 20 | try { 21 | close() 22 | } catch (closeException: Throwable) { 23 | cause.addSuppressed(closeException) 24 | } 25 | } -------------------------------------------------------------------------------- /src/jmh/kotlin/com/imanushin/use/performance/benchmarks/CompareInlineUseVsLambdaUse.kt: -------------------------------------------------------------------------------- 1 | package com.imanushin.use.performance.benchmarks 2 | 3 | import com.imanushin.use.performance.useNoInline 4 | import org.openjdk.jmh.annotations.* 5 | import org.openjdk.jmh.infra.Blackhole 6 | 7 | @BenchmarkMode(Mode.All) 8 | @Warmup 9 | @Measurement 10 | open class CompareInlineUseVsLambdaUse { 11 | 12 | @Benchmark 13 | fun inlineUse(blackhole: Blackhole) { 14 | NoopAutoCloseable(blackhole).use { 15 | blackhole.consume(1) 16 | } 17 | } 18 | 19 | @Benchmark 20 | fun lambdaUse(blackhole: Blackhole) { 21 | NoopAutoCloseable(blackhole).useNoInline { 22 | blackhole.consume(1) 23 | } 24 | } 25 | } -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) 2018 Igor Manushin 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /.github/workflows/ci.yaml: -------------------------------------------------------------------------------- 1 | name: Pre Merge Checks 2 | 3 | on: 4 | push: 5 | branches: 6 | - master 7 | pull_request: 8 | workflow_dispatch: 9 | 10 | permissions: 11 | contents: read 12 | 13 | jobs: 14 | gradle: 15 | runs-on: ubuntu-latest 16 | steps: 17 | # https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-java-with-gradle#using-the-gradle-starter-workflow 18 | - name: Checkout Repo 19 | uses: actions/checkout@v4 20 | 21 | # https://github.com/marketplace/actions/setup-java-jdk 22 | - name: Set up JDK 23 | uses: actions/setup-java@v4 24 | with: 25 | java-version: 21 26 | distribution: 'temurin' 27 | 28 | # https://github.com/marketplace/actions/gradle-wrapper-validation 29 | - name: Validate Gradle wrapper 30 | uses: gradle/wrapper-validation-action@v2 31 | 32 | # https://github.com/marketplace/actions/gradle-build-action 33 | - name: Build with Gradle 34 | uses: gradle/gradle-build-action@v3 35 | with: 36 | gradle-home-cache-cleanup: true 37 | arguments: build --stacktrace --info -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Gradle 2 | # ------ 3 | .gradle 4 | build/ 5 | out/ 6 | /buildSrc/build 7 | /subprojects/*/build 8 | /subprojects/docs/src/samples/*/*/build 9 | /subprojects/internal-android-performance-testing/build-android-libs 10 | 11 | # IDEA 12 | # ---- 13 | .idea 14 | .shelf 15 | *.iml 16 | *.ipr 17 | *.iws 18 | /buildSrc/*.iml 19 | /buildSrc/*.ipr 20 | /buildSrc/*.iws 21 | /buildSrc/out 22 | /out 23 | /subprojects/*/*.iml 24 | /subprojects/*/out 25 | /.teamcity/*.iml 26 | /.teamcity/target 27 | 28 | # Eclipse 29 | # ------- 30 | *.classpath 31 | *.project 32 | *.settings 33 | /bin 34 | /subprojects/*/bin 35 | atlassian-ide-plugin.xml 36 | .metadata/ 37 | 38 | # NetBeans 39 | # -------- 40 | .nb-gradle 41 | .nb-gradle-properties 42 | 43 | # Vim 44 | # --- 45 | *.sw[op] 46 | 47 | # Emacs 48 | # ----- 49 | *~ 50 | \#*\# 51 | .\#* 52 | 53 | # Textmate 54 | # -------- 55 | .textmate 56 | 57 | # Sublime Text 58 | # ------------ 59 | *.sublime-* 60 | 61 | # jEnv 62 | # ---- 63 | .java-version 64 | 65 | # macOS 66 | # ---- 67 | .DS_Store 68 | 69 | # HPROF 70 | # ----- 71 | *.hprof 72 | 73 | # Work dirs 74 | # --------- 75 | /incoming-distributions 76 | /intTestHomeDir 77 | 78 | # Logs 79 | # ---- 80 | /*.log 81 | 82 | # oh-my-zsh gradle plugin 83 | .gradletasknamecache 84 | -------------------------------------------------------------------------------- /results/1.txt: -------------------------------------------------------------------------------- 1 | Benchmark Mode Cnt Score Error Units 2 | CompareInlineUseVsLambdaUse.inlineUse thrpt 100 1.173 ▒ 0.004 ops/us 3 | CompareInlineUseVsLambdaUse.lambdaUse thrpt 100 1.169 ▒ 0.006 ops/us 4 | CompareInlineUseVsLambdaUse.inlineUse avgt 100 0.863 ▒ 0.006 us/op 5 | CompareInlineUseVsLambdaUse.lambdaUse avgt 100 0.848 ▒ 0.002 us/op 6 | CompareInlineUseVsLambdaUse.inlineUse sample 3322298 0.978 ▒ 0.003 us/op 7 | CompareInlineUseVsLambdaUse.inlineUse:inlineUse╖p0.00 sample 0.584 us/op 8 | CompareInlineUseVsLambdaUse.inlineUse:inlineUse╖p0.50 sample 0.877 us/op 9 | CompareInlineUseVsLambdaUse.inlineUse:inlineUse╖p0.90 sample 1.168 us/op 10 | CompareInlineUseVsLambdaUse.inlineUse:inlineUse╖p0.95 sample 1.460 us/op 11 | CompareInlineUseVsLambdaUse.inlineUse:inlineUse╖p0.99 sample 1.462 us/op 12 | CompareInlineUseVsLambdaUse.inlineUse:inlineUse╖p0.999 sample 14.016 us/op 13 | CompareInlineUseVsLambdaUse.inlineUse:inlineUse╖p0.9999 sample 59.904 us/op 14 | CompareInlineUseVsLambdaUse.inlineUse:inlineUse╖p1.00 sample 1159.168 us/op 15 | CompareInlineUseVsLambdaUse.lambdaUse sample 3546681 0.914 ▒ 0.002 us/op 16 | CompareInlineUseVsLambdaUse.lambdaUse:lambdaUse╖p0.00 sample 0.584 us/op 17 | CompareInlineUseVsLambdaUse.lambdaUse:lambdaUse╖p0.50 sample 0.877 us/op 18 | CompareInlineUseVsLambdaUse.lambdaUse:lambdaUse╖p0.90 sample 0.877 us/op 19 | CompareInlineUseVsLambdaUse.lambdaUse:lambdaUse╖p0.95 sample 1.168 us/op 20 | CompareInlineUseVsLambdaUse.lambdaUse:lambdaUse╖p0.99 sample 1.460 us/op 21 | CompareInlineUseVsLambdaUse.lambdaUse:lambdaUse╖p0.999 sample 13.440 us/op 22 | CompareInlineUseVsLambdaUse.lambdaUse:lambdaUse╖p0.9999 sample 55.808 us/op 23 | CompareInlineUseVsLambdaUse.lambdaUse:lambdaUse╖p1.00 sample 1273.856 us/op 24 | CompareInlineUseVsLambdaUse.inlineUse ss 100 189.264 ▒ 12.921 us/op 25 | CompareInlineUseVsLambdaUse.lambdaUse ss 100 187.827 ▒ 14.642 us/op 26 | -------------------------------------------------------------------------------- /results/2.txt: -------------------------------------------------------------------------------- 1 | Benchmark Mode Cnt Score Error Units 2 | CompareInlineUseVsLambdaUse.inlineUse thrpt 100 1.084 ▒ 0.024 ops/us 3 | CompareInlineUseVsLambdaUse.lambdaUse thrpt 100 1.177 ▒ 0.003 ops/us 4 | CompareInlineUseVsLambdaUse.inlineUse avgt 100 0.854 ▒ 0.003 us/op 5 | CompareInlineUseVsLambdaUse.lambdaUse avgt 100 0.849 ▒ 0.003 us/op 6 | CompareInlineUseVsLambdaUse.inlineUse sample 3437529 0.946 ▒ 0.003 us/op 7 | CompareInlineUseVsLambdaUse.inlineUse:inlineUse╖p0.00 sample 0.584 us/op 8 | CompareInlineUseVsLambdaUse.inlineUse:inlineUse╖p0.50 sample 0.877 us/op 9 | CompareInlineUseVsLambdaUse.inlineUse:inlineUse╖p0.90 sample 1.168 us/op 10 | CompareInlineUseVsLambdaUse.inlineUse:inlineUse╖p0.95 sample 1.460 us/op 11 | CompareInlineUseVsLambdaUse.inlineUse:inlineUse╖p0.99 sample 1.462 us/op 12 | CompareInlineUseVsLambdaUse.inlineUse:inlineUse╖p0.999 sample 13.728 us/op 13 | CompareInlineUseVsLambdaUse.inlineUse:inlineUse╖p0.9999 sample 57.856 us/op 14 | CompareInlineUseVsLambdaUse.inlineUse:inlineUse╖p1.00 sample 1224.704 us/op 15 | CompareInlineUseVsLambdaUse.lambdaUse sample 3223463 1.004 ▒ 0.002 us/op 16 | CompareInlineUseVsLambdaUse.lambdaUse:lambdaUse╖p0.00 sample 0.584 us/op 17 | CompareInlineUseVsLambdaUse.lambdaUse:lambdaUse╖p0.50 sample 0.877 us/op 18 | CompareInlineUseVsLambdaUse.lambdaUse:lambdaUse╖p0.90 sample 1.460 us/op 19 | CompareInlineUseVsLambdaUse.lambdaUse:lambdaUse╖p0.95 sample 1.460 us/op 20 | CompareInlineUseVsLambdaUse.lambdaUse:lambdaUse╖p0.99 sample 1.462 us/op 21 | CompareInlineUseVsLambdaUse.lambdaUse:lambdaUse╖p0.999 sample 13.728 us/op 22 | CompareInlineUseVsLambdaUse.lambdaUse:lambdaUse╖p0.9999 sample 55.697 us/op 23 | CompareInlineUseVsLambdaUse.lambdaUse:lambdaUse╖p1.00 sample 676.864 us/op 24 | CompareInlineUseVsLambdaUse.inlineUse ss 100 191.006 ▒ 13.818 us/op 25 | CompareInlineUseVsLambdaUse.lambdaUse ss 100 190.863 ▒ 14.087 us/op 26 | -------------------------------------------------------------------------------- /results/3.txt: -------------------------------------------------------------------------------- 1 | Benchmark Mode Cnt Score Error Units 2 | CompareInlineUseVsLambdaUse.inlineUse thrpt 25 213820227.482 ▒ 341224.467 ops/s 3 | CompareInlineUseVsLambdaUse.lambdaUse thrpt 25 213742457.664 ▒ 328578.425 ops/s 4 | CompareInlineUseVsLambdaUse.inlineUse avgt 25 ? 10?? s/op 5 | CompareInlineUseVsLambdaUse.lambdaUse avgt 25 ? 10?? s/op 6 | CompareInlineUseVsLambdaUse.inlineUse sample 6951494 ? 10?? s/op 7 | CompareInlineUseVsLambdaUse.inlineUse:inlineUse╖p0.00 sample ? 0 s/op 8 | CompareInlineUseVsLambdaUse.inlineUse:inlineUse╖p0.50 sample ? 0 s/op 9 | CompareInlineUseVsLambdaUse.inlineUse:inlineUse╖p0.90 sample ? 10?? s/op 10 | CompareInlineUseVsLambdaUse.inlineUse:inlineUse╖p0.95 sample ? 10?? s/op 11 | CompareInlineUseVsLambdaUse.inlineUse:inlineUse╖p0.99 sample ? 10?? s/op 12 | CompareInlineUseVsLambdaUse.inlineUse:inlineUse╖p0.999 sample ? 10?? s/op 13 | CompareInlineUseVsLambdaUse.inlineUse:inlineUse╖p0.9999 sample ? 10?? s/op 14 | CompareInlineUseVsLambdaUse.inlineUse:inlineUse╖p1.00 sample 0.001 s/op 15 | CompareInlineUseVsLambdaUse.lambdaUse sample 6266081 ? 10?? s/op 16 | CompareInlineUseVsLambdaUse.lambdaUse:lambdaUse╖p0.00 sample ? 0 s/op 17 | CompareInlineUseVsLambdaUse.lambdaUse:lambdaUse╖p0.50 sample ? 0 s/op 18 | CompareInlineUseVsLambdaUse.lambdaUse:lambdaUse╖p0.90 sample ? 10?? s/op 19 | CompareInlineUseVsLambdaUse.lambdaUse:lambdaUse╖p0.95 sample ? 10?? s/op 20 | CompareInlineUseVsLambdaUse.lambdaUse:lambdaUse╖p0.99 sample ? 10?? s/op 21 | CompareInlineUseVsLambdaUse.lambdaUse:lambdaUse╖p0.999 sample ? 10?? s/op 22 | CompareInlineUseVsLambdaUse.lambdaUse:lambdaUse╖p0.9999 sample ? 10?? s/op 23 | CompareInlineUseVsLambdaUse.lambdaUse:lambdaUse╖p1.00 sample 0.001 s/op 24 | CompareInlineUseVsLambdaUse.inlineUse ss 5 0.002 ▒ 0.001 s/op 25 | CompareInlineUseVsLambdaUse.lambdaUse ss 5 0.003 ▒ 0.001 s/op 26 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @rem 2 | @rem Copyright 2015 the original author or authors. 3 | @rem 4 | @rem Licensed under the Apache License, Version 2.0 (the "License"); 5 | @rem you may not use this file except in compliance with the License. 6 | @rem You may obtain a copy of the License at 7 | @rem 8 | @rem https://www.apache.org/licenses/LICENSE-2.0 9 | @rem 10 | @rem Unless required by applicable law or agreed to in writing, software 11 | @rem distributed under the License is distributed on an "AS IS" BASIS, 12 | @rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | @rem See the License for the specific language governing permissions and 14 | @rem limitations under the License. 15 | @rem 16 | 17 | @if "%DEBUG%"=="" @echo off 18 | @rem ########################################################################## 19 | @rem 20 | @rem Gradle startup script for Windows 21 | @rem 22 | @rem ########################################################################## 23 | 24 | @rem Set local scope for the variables with windows NT shell 25 | if "%OS%"=="Windows_NT" setlocal 26 | 27 | set DIRNAME=%~dp0 28 | if "%DIRNAME%"=="" set DIRNAME=. 29 | @rem This is normally unused 30 | set APP_BASE_NAME=%~n0 31 | set APP_HOME=%DIRNAME% 32 | 33 | @rem Resolve any "." and ".." in APP_HOME to make it shorter. 34 | for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi 35 | 36 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 37 | set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m" 38 | 39 | @rem Find java.exe 40 | if defined JAVA_HOME goto findJavaFromJavaHome 41 | 42 | set JAVA_EXE=java.exe 43 | %JAVA_EXE% -version >NUL 2>&1 44 | if %ERRORLEVEL% equ 0 goto execute 45 | 46 | echo. 47 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 48 | echo. 49 | echo Please set the JAVA_HOME variable in your environment to match the 50 | echo location of your Java installation. 51 | 52 | goto fail 53 | 54 | :findJavaFromJavaHome 55 | set JAVA_HOME=%JAVA_HOME:"=% 56 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 57 | 58 | if exist "%JAVA_EXE%" goto execute 59 | 60 | echo. 61 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 62 | echo. 63 | echo Please set the JAVA_HOME variable in your environment to match the 64 | echo location of your Java installation. 65 | 66 | goto fail 67 | 68 | :execute 69 | @rem Setup the command line 70 | 71 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 72 | 73 | 74 | @rem Execute Gradle 75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %* 76 | 77 | :end 78 | @rem End local scope for the variables with windows NT shell 79 | if %ERRORLEVEL% equ 0 goto mainEnd 80 | 81 | :fail 82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 83 | rem the _cmd.exe /c_ return code! 84 | set EXIT_CODE=%ERRORLEVEL% 85 | if %EXIT_CODE% equ 0 set EXIT_CODE=1 86 | if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE% 87 | exit /b %EXIT_CODE% 88 | 89 | :mainEnd 90 | if "%OS%"=="Windows_NT" endlocal 91 | 92 | :omega 93 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/bin/sh 2 | 3 | # 4 | # Copyright © 2015-2021 the original authors. 5 | # 6 | # Licensed under the Apache License, Version 2.0 (the "License"); 7 | # you may not use this file except in compliance with the License. 8 | # You may obtain a copy of the License at 9 | # 10 | # https://www.apache.org/licenses/LICENSE-2.0 11 | # 12 | # Unless required by applicable law or agreed to in writing, software 13 | # distributed under the License is distributed on an "AS IS" BASIS, 14 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 | # See the License for the specific language governing permissions and 16 | # limitations under the License. 17 | # 18 | 19 | ############################################################################## 20 | # 21 | # Gradle start up script for POSIX generated by Gradle. 22 | # 23 | # Important for running: 24 | # 25 | # (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is 26 | # noncompliant, but you have some other compliant shell such as ksh or 27 | # bash, then to run this script, type that shell name before the whole 28 | # command line, like: 29 | # 30 | # ksh Gradle 31 | # 32 | # Busybox and similar reduced shells will NOT work, because this script 33 | # requires all of these POSIX shell features: 34 | # * functions; 35 | # * expansions «$var», «${var}», «${var:-default}», «${var+SET}», 36 | # «${var#prefix}», «${var%suffix}», and «$( cmd )»; 37 | # * compound commands having a testable exit status, especially «case»; 38 | # * various built-in commands including «command», «set», and «ulimit». 39 | # 40 | # Important for patching: 41 | # 42 | # (2) This script targets any POSIX shell, so it avoids extensions provided 43 | # by Bash, Ksh, etc; in particular arrays are avoided. 44 | # 45 | # The "traditional" practice of packing multiple parameters into a 46 | # space-separated string is a well documented source of bugs and security 47 | # problems, so this is (mostly) avoided, by progressively accumulating 48 | # options in "$@", and eventually passing that to Java. 49 | # 50 | # Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS, 51 | # and GRADLE_OPTS) rely on word-splitting, this is performed explicitly; 52 | # see the in-line comments for details. 53 | # 54 | # There are tweaks for specific operating systems such as AIX, CygWin, 55 | # Darwin, MinGW, and NonStop. 56 | # 57 | # (3) This script is generated from the Groovy template 58 | # https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt 59 | # within the Gradle project. 60 | # 61 | # You can find Gradle at https://github.com/gradle/gradle/. 62 | # 63 | ############################################################################## 64 | 65 | # Attempt to set APP_HOME 66 | 67 | # Resolve links: $0 may be a link 68 | app_path=$0 69 | 70 | # Need this for daisy-chained symlinks. 71 | while 72 | APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path 73 | [ -h "$app_path" ] 74 | do 75 | ls=$( ls -ld "$app_path" ) 76 | link=${ls#*' -> '} 77 | case $link in #( 78 | /*) app_path=$link ;; #( 79 | *) app_path=$APP_HOME$link ;; 80 | esac 81 | done 82 | 83 | # This is normally unused 84 | # shellcheck disable=SC2034 85 | APP_BASE_NAME=${0##*/} 86 | # Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036) 87 | APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit 88 | 89 | # Use the maximum available, or set MAX_FD != -1 to use that value. 90 | MAX_FD=maximum 91 | 92 | warn () { 93 | echo "$*" 94 | } >&2 95 | 96 | die () { 97 | echo 98 | echo "$*" 99 | echo 100 | exit 1 101 | } >&2 102 | 103 | # OS specific support (must be 'true' or 'false'). 104 | cygwin=false 105 | msys=false 106 | darwin=false 107 | nonstop=false 108 | case "$( uname )" in #( 109 | CYGWIN* ) cygwin=true ;; #( 110 | Darwin* ) darwin=true ;; #( 111 | MSYS* | MINGW* ) msys=true ;; #( 112 | NONSTOP* ) nonstop=true ;; 113 | esac 114 | 115 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 116 | 117 | 118 | # Determine the Java command to use to start the JVM. 119 | if [ -n "$JAVA_HOME" ] ; then 120 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 121 | # IBM's JDK on AIX uses strange locations for the executables 122 | JAVACMD=$JAVA_HOME/jre/sh/java 123 | else 124 | JAVACMD=$JAVA_HOME/bin/java 125 | fi 126 | if [ ! -x "$JAVACMD" ] ; then 127 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 128 | 129 | Please set the JAVA_HOME variable in your environment to match the 130 | location of your Java installation." 131 | fi 132 | else 133 | JAVACMD=java 134 | if ! command -v java >/dev/null 2>&1 135 | then 136 | die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 137 | 138 | Please set the JAVA_HOME variable in your environment to match the 139 | location of your Java installation." 140 | fi 141 | fi 142 | 143 | # Increase the maximum file descriptors if we can. 144 | if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then 145 | case $MAX_FD in #( 146 | max*) 147 | # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked. 148 | # shellcheck disable=SC2039,SC3045 149 | MAX_FD=$( ulimit -H -n ) || 150 | warn "Could not query maximum file descriptor limit" 151 | esac 152 | case $MAX_FD in #( 153 | '' | soft) :;; #( 154 | *) 155 | # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked. 156 | # shellcheck disable=SC2039,SC3045 157 | ulimit -n "$MAX_FD" || 158 | warn "Could not set maximum file descriptor limit to $MAX_FD" 159 | esac 160 | fi 161 | 162 | # Collect all arguments for the java command, stacking in reverse order: 163 | # * args from the command line 164 | # * the main class name 165 | # * -classpath 166 | # * -D...appname settings 167 | # * --module-path (only if needed) 168 | # * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables. 169 | 170 | # For Cygwin or MSYS, switch paths to Windows format before running java 171 | if "$cygwin" || "$msys" ; then 172 | APP_HOME=$( cygpath --path --mixed "$APP_HOME" ) 173 | CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" ) 174 | 175 | JAVACMD=$( cygpath --unix "$JAVACMD" ) 176 | 177 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 178 | for arg do 179 | if 180 | case $arg in #( 181 | -*) false ;; # don't mess with options #( 182 | /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath 183 | [ -e "$t" ] ;; #( 184 | *) false ;; 185 | esac 186 | then 187 | arg=$( cygpath --path --ignore --mixed "$arg" ) 188 | fi 189 | # Roll the args list around exactly as many times as the number of 190 | # args, so each arg winds up back in the position where it started, but 191 | # possibly modified. 192 | # 193 | # NB: a `for` loop captures its iteration list before it begins, so 194 | # changing the positional parameters here affects neither the number of 195 | # iterations, nor the values presented in `arg`. 196 | shift # remove old arg 197 | set -- "$@" "$arg" # push replacement arg 198 | done 199 | fi 200 | 201 | 202 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 203 | DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' 204 | 205 | # Collect all arguments for the java command: 206 | # * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments, 207 | # and any embedded shellness will be escaped. 208 | # * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be 209 | # treated as '${Hostname}' itself on the command line. 210 | 211 | set -- \ 212 | "-Dorg.gradle.appname=$APP_BASE_NAME" \ 213 | -classpath "$CLASSPATH" \ 214 | org.gradle.wrapper.GradleWrapperMain \ 215 | "$@" 216 | 217 | # Stop when "xargs" is not available. 218 | if ! command -v xargs >/dev/null 2>&1 219 | then 220 | die "xargs is not available" 221 | fi 222 | 223 | # Use "xargs" to parse quoted args. 224 | # 225 | # With -n1 it outputs one arg per line, with the quotes and backslashes removed. 226 | # 227 | # In Bash we could simply go: 228 | # 229 | # readarray ARGS < <( xargs -n1 <<<"$var" ) && 230 | # set -- "${ARGS[@]}" "$@" 231 | # 232 | # but POSIX shell has neither arrays nor command substitution, so instead we 233 | # post-process each arg (as a line of input to sed) to backslash-escape any 234 | # character that might be a shell metacharacter, then use eval to reverse 235 | # that process (while maintaining the separation between arguments), and wrap 236 | # the whole thing up as a single "set" statement. 237 | # 238 | # This will of course break if any of these variables contains a newline or 239 | # an unmatched quote. 240 | # 241 | 242 | eval "set -- $( 243 | printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" | 244 | xargs -n1 | 245 | sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' | 246 | tr '\n' ' ' 247 | )" '"$@"' 248 | 249 | exec "$JAVACMD" "$@" 250 | --------------------------------------------------------------------------------