WARNING: An illegal reflective access operation has occurred (Gradle, Java 9, Windows 10) #3118

ghost · 2017-10-10T07:19:55Z

input command gradle -version (Windows 10)

Expected Behavior

Gradle 4.2.1

Build time: 2017-10-02 15:36:21 UTC
Revision: a88ebd6

Groovy: 2.4.12
Ant: Apache Ant(TM) version 1.9.6 compiled on June 29 2015
JVM: 9 (Oracle Corporation 9+181)
OS: Windows 10 10.0 amd64

C:\Windows\system32>java -version
java version "9"
Java(TM) SE Runtime Environment (build 9+181)
Java HotSpot(TM) 64-Bit Server VM (build 9+181, mixed mode)

Current Behavior

WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.codehaus.groovy.reflection.CachedClass (file:/C:/gradle/lib/groovy-all-2.4.12.jar) to method java.lang.Object.finalize()
WARNING: Please consider reporting this to the maintainers of org.codehaus.groovy.reflection.CachedClass
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

Gradle 4.2.1

Build time: 2017-10-02 15:36:21 UTC
Revision: a88ebd6

Groovy: 2.4.12
Ant: Apache Ant(TM) version 1.9.6 compiled on June 29 2015
JVM: 9 (Oracle Corporation 9+181)
OS: Windows 10 10.0 amd64

C:\Windows\system32>java -version
java version "9"
Java(TM) SE Runtime Environment (build 9+181)
Java HotSpot(TM) 64-Bit Server VM (build 9+181, mixed mode)

Context

trying to build projects with gradle using java 9 wondering is this will be a problem

Steps to Reproduce (for bugs)

no current project

Your Environment

Build scan URL:

The text was updated successfully, but these errors were encountered:

blindpirate · 2017-10-10T07:38:13Z

Please see #2995 for more details and solution.

oehme · 2017-10-10T07:43:25Z

The linked ticket contains a workaround, but not really a solution. The real issue is a problem in the JDK. There is actually no illegal access, but the JDK method trySetAccessible is misbehaving. This will hopefully be fixed in a future JDK version.

bw-smarkwell · 2017-12-30T02:44:10Z

https://issues.apache.org/jira/browse/GROOVY-8339 is the Groovy Ticket which is tracking the issue

maludwig · 2018-03-08T15:13:02Z

So, as much as we could pass this off to the JDK for being silly, I think it's totally within our power to simply output a version number without seeing an error. We don't need Reflection in order to spit out a version...right?

oehme · 2018-03-08T15:38:37Z

Not sure what you mean. Why would we invest in a fix that only works for gradle -version when every other task or command will still print the warning?

maludwig · 2018-03-09T22:21:37Z

Odd, I don't get it on other commands:

[2018-03-09T15:20:22-0700]: mitchell.ludwig@Mitchells-MacBook-Pro:~/dev/playgradle
$ gradle -version
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.codehaus.groovy.reflection.CachedClass (file:/usr/local/Cellar/gradle/4.6/libexec/lib/groovy-all-2.4.12.jar) to method java.lang.Object.finalize()
WARNING: Please consider reporting this to the maintainers of org.codehaus.groovy.reflection.CachedClass
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

------------------------------------------------------------
Gradle 4.6
------------------------------------------------------------

Build time:   2018-02-28 13:36:36 UTC
Revision:     8fa6ce7945b640e6168488e4417f9bb96e4ab46c

Groovy:       2.4.12
Ant:          Apache Ant(TM) version 1.9.9 compiled on February 2 2017
JVM:          9.0.4 (Oracle Corporation 9.0.4+11)
OS:           Mac OS X 10.13.3 x86_64

[2018-03-09T15:20:30-0700]: mitchell.ludwig@Mitchells-MacBook-Pro:~/dev/playgradle
$ gradle wrapper
Starting a Gradle Daemon (subsequent builds will be faster)

BUILD SUCCESSFUL in 5s
1 actionable task: 1 up-to-date
[2018-03-09T15:20:41-0700]: mitchell.ludwig@Mitchells-MacBook-Pro:~/dev/playgradle
$ cat build.gradle 
plugins {
    id "base"
}

version '1.0-SNAPSHOT'

apply plugin: 'java'

sourceCompatibility = 1.8

repositories {
    mavenCentral()
}

dependencies {
    testCompile group: 'junit', name: 'junit', version: '4.12'
}

task copy(type: Copy, group: "Custom", description: "Copies sources to the dest directory") {
    from "src"
    into "dest"
}

task zip(type: Zip, group: "Archive", description: "Archives sources in a zip file") {
    from "src"
}
[2018-03-09T15:20:49-0700]: mitchell.ludwig@Mitchells-MacBook-Pro:~/dev/playgradle
$ gradle copy

BUILD SUCCESSFUL in 0s
1 actionable task: 1 up-to-date
[2018-03-09T15:20:59-0700]: mitchell.ludwig@Mitchells-MacBook-Pro:~/dev/playgradle
$

oehme · 2018-03-10T09:47:41Z

That is surprising indeed. Last time I checked this always happened when the Groovy Runtime was loaded (i.e. on every build). Thanks for checking!

VladyslavKurmaz · 2018-03-10T22:04:08Z

I got the same issue under MacOS

bash-3.2$ gradle -v
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.codehaus.groovy.reflection.CachedClass (file:/usr/local/Cellar/gradle/4.6/libexec/lib/groovy-all-2.4.12.jar) to method java.lang.Object.finalize()
WARNING: Please consider reporting this to the maintainers of org.codehaus.groovy.reflection.CachedClass
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

------------------------------------------------------------
Gradle 4.6
------------------------------------------------------------

Build time:   2018-02-28 13:36:36 UTC
Revision:     8fa6ce7945b640e6168488e4417f9bb96e4ab46c

Groovy:       2.4.12
Ant:          Apache Ant(TM) version 1.9.9 compiled on February 2 2017
JVM:          9 (Oracle Corporation 9+181)
OS:           Mac OS X 10.12.6 x86_64

bash-3.2$ java -version
java version "9"
Java(TM) SE Runtime Environment (build 9+181)
Java HotSpot(TM) 64-Bit Server VM (build 9+181, mixed mode)

yysofiyan · 2018-03-12T04:26:48Z

192:~ macbookairmd760$ cd
192:~ macbookairmd760$ gradle -v
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.codehaus.groovy.reflection.CachedClass (file:/usr/local/Cellar/gradle/4.6/libexec/lib/groovy-all-2.4.12.jar) to method java.lang.Object.finalize()
WARNING: Please consider reporting this to the maintainers of org.codehaus.groovy.reflection.CachedClass
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

Gradle 4.6

Build time: 2018-02-28 13:36:36 UTC
Revision: 8fa6ce7

Groovy: 2.4.12
Ant: Apache Ant(TM) version 1.9.9 compiled on February 2 2017
JVM: 9.0.4 (Oracle Corporation 9.0.4+11)
OS: Mac OS X 10.13.3 x86_64

192:~ macbookairmd760$

maludwig · 2018-03-12T07:05:11Z

Maybe something is specific to OSX? I'm on High Sierra. Maybe it's high? :P

VladyslavKurmaz · 2018-03-12T07:26:37Z

Uninstalling java-9 and installing java-8 solved my issue.
My OS - macOS Sierra 10.12.6

lanegoolsby · 2018-04-07T14:05:12Z

Same issue on Windows 10 with IntelliJ

WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.codehaus.groovy.reflection.CachedClass (file:/C:/Users/Lane/.gradle/wrapper/dists/gradle-4.6-bin/4jp4stjndanmxuerzfseyb6wo/gradle-4.6/lib/groovy-all-2.4.12.jar) to method java.lang.Object.finalize()
WARNING: Please consider reporting this to the maintainers of org.codehaus.groovy.reflection.CachedClass
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

Gradle 4.6

Build time: 2018-02-28 13:36:36 UTC
Revision: 8fa6ce7

Groovy: 2.4.12
Ant: Apache Ant(TM) version 1.9.9 compiled on February 2 2017
JVM: 9.0.4 (Oracle Corporation 9.0.4+11)
OS: Windows 10 10.0 amd64

donhuvy · 2018-04-30T15:51:55Z

Gradle 4.7

/Library/Java/JavaVirtualMachines/jdk-10.jdk/Contents/Home/bin/java -agentlib:jdwp=transport=dt_socket,address=127.0.0.1:51218,suspend=y,server=n --illegal-access=permit -XX:TieredStopAtLevel=1 -noverify -Dspring.output.ansi.enabled=always -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=51217 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Djava.rmi.server.hostname=127.0.0.1 -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true -javaagent:/Users/donhuvy/Library/Caches/IntelliJIdea2018.1/groovyHotSwap/gragent.jar -javaagent:/Users/donhuvy/Library/Caches/IntelliJIdea2018.1/captureAgent/debugger-agent.jar=file:/private/var/folders/lj/tgdhz0mx5t54vglcc8982vbc0000gn/T/capture.props -Dfile.encoding=UTF-8 -classpath "/Users/donhuvy/Documents/source_code/github.com/donhuvy/accounting/out/production/classes:/Users/donhuvy/Documents/source_code/github.com/donhuvy/accounting/out/production/resources:/Users/donhuvy/.m2/repository/org/springframework/boot/spring-boot-starter-actuator/2.0.1.RELEASE/spring-boot-starter-actuator-2.0.1.RELEASE.jar:/Users/donhuvy/.m2/repository/javax/annotation/javax.annotation-api/1.3.2/javax.annotation-api-1.3.2.jar:/Users/donhuvy/.m2/repository/org/apache/tomcat/embed/tomcat-embed-core/8.5.29/tomcat-embed-core-8.5.29.jar:/Users/donhuvy/.m2/repository/org/apache/tomcat/embed/tomcat-embed-el/8.5.29/tomcat-embed-el-8.5.29.jar:/Users/donhuvy/.m2/repository/org/apache/tomcat/embed/tomcat-embed-websocket/8.5.29/tomcat-embed-websocket-8.5.29.jar:/Users/donhuvy/.m2/repository/org/springframework/boot/spring-boot-starter-tomcat/2.0.1.RELEASE/spring-boot-starter-tomcat-2.0.1.RELEASE.jar:/Users/donhuvy/.m2/repository/org/springframework/boot/spring-boot-starter-data-jpa/2.0.1.RELEASE/spring-boot-starter-data-jpa-2.0.1.RELEASE.jar:/Users/donhuvy/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-starter-security/2.0.1.RELEASE/d573123d27bc3c7333fbc352eced092737c7303f/spring-boot-starter-security-2.0.1.RELEASE.jar:/Users/donhuvy/.m2/repository/org/springframework/boot/spring-boot-starter-web/2.0.1.RELEASE/spring-boot-starter-web-2.0.1.RELEASE.jar:/Users/donhuvy/.gradle/caches/modules-2/files-2.1/org.springframework.boot/spring-boot-starter-thymeleaf/2.0.0.RELEASE/3f77dc6b3bfa8e9cc9e0eaa9abc32c5b00b5046a/spring-boot-starter-thymeleaf-2.0.0.RELEASE.jar:/Users/donhuvy/.m2/repository/com/oracle/ojdbc7/12.1.0.1/ojdbc7-12.1.0.1.jar:/Users/donhuvy/.m2/repository/javax/xml/bind/jaxb-api/2.3.0/jaxb-api-2.3.0.jar:/Users/donhuvy/.gradle/caches/modules-2/files-2.1/com.sun.xml.bind/jaxb-core/2.3.0/d044c784e41d026778693fb44a8026c1fd9a7506/jaxb-core-2.3.0.jar:/Users/donhuvy/.gradle/caches/modules-2/files-2.1/com.sun.xml.bind/jaxb-impl/2.3.0/3a3c6a62719d967175b76b63925f1fb495f11437/jaxb-impl-2.3.0.jar:/Users/donhuvy/.m2/repository/org/thymeleaf/extras/thymeleaf-extras-java8time/3.0.1.RELEASE/thymeleaf-extras-java8time-3.0.1.RELEASE.jar:/Users/donhuvy/.gradle/caches/modules-2/files-2.1/org.thymeleaf.extras/thymeleaf-extras-conditionalcomments/2.1.2.RELEASE/d188a0c94614956d79644b71bdd05098fa4d6a3/thymeleaf-extras-conditionalcomments-2.1.2.RELEASE.jar:/Users/donhuvy/.m2/repository/org/thymeleaf/extras/thymeleaf-extras-springsecurity4/3.0.2.RELEASE/thymeleaf-extras-springsecurity4-3.0.2.RELEASE.jar:/Users/donhuvy/.m2/repository/org/springframework/boot/spring-boot-starter-aop/2.0.1.RELEASE/spring-boot-starter-aop-2.0.1.RELEASE.jar:/Users/donhuvy/.m2/repository/org/springframework/boot/spring-boot-starter-jdbc/2.0.1.RELEASE/spring-boot-starter-jdbc-2.0.1.RELEASE.jar:/Users/donhuvy/.m2/repository/org/springframework/boot/spring-boot-starter-json/2.0.1.RELEASE/spring-boot-starter-json-2.0.1.RELEASE.jar:/Users/donhuvy/.m2/repository/org/springframework/boot/spring-boot-devtools/2.0.1.RELEASE/spring-boot-devtools-2.0.1.RELEASE.jar:/Users/donhuvy/.m2/repository/org/springframework/boot/spring-boot-starter/2.0.1.RELEASE/spring-boot-starter-2.0.1.RELEASE.jar:/Users/donhuvy/.m2/repository/org/springframework/boot/spring-boot-actuator-autoconfigure/2.0.1.RELEASE/spring-boot-actuator-autoconfigure-2.0.1.RELEASE.jar:/Users/donhuvy/.m2/repository/io/micrometer/micrometer-core/1.0.3/micrometer-core-1.0.3.jar:/Users/donhuvy/.m2/repository/org/hibernate/hibernate-core/5.2.16.Final/hibernate-core-5.2.16.Final.jar:/Users/donhuvy/.m2/repository/javax/transaction/javax.transaction-api/1.2/javax.transaction-api-1.2.jar:/Users/donhuvy/.m2/repository/org/springframework/data/spring-data-jpa/2.0.6.RELEASE/spring-data-jpa-2.0.6.RELEASE.jar:/Users/donhuvy/.m2/repository/org/springframework/spring-aspects/5.0.5.RELEASE/spring-aspects-5.0.5.RELEASE.jar:/Users/donhuvy/.gradle/caches/modules-2/files-2.1/org.springframework.security/spring-security-config/5.0.4.RELEASE/355fc8c3d1c61fe85915082587946ad346250d85/spring-security-config-5.0.4.RELEASE.jar:/Users/donhuvy/.gradle/caches/modules-2/files-2.1/org.springframework.security/spring-security-web/5.0.4.RELEASE/bd2592c928d043f70742fd8ae409f751a63132dd/spring-security-web-5.0.4.RELEASE.jar:/Users/donhuvy/.m2/repository/org/springframework/spring-webmvc/5.0.5.RELEASE/spring-webmvc-5.0.5.RELEASE.jar:/Users/donhuvy/.m2/repository/org/springframework/boot/spring-boot-autoconfigure/2.0.1.RELEASE/spring-boot-autoconfigure-2.0.1.RELEASE.jar:/Users/donhuvy/.m2/repository/org/springframework/boot/spring-boot-actuator/2.0.1.RELEASE/spring-boot-actuator-2.0.1.RELEASE.jar:/Users/donhuvy/.m2/repository/org/springframework/boot/spring-boot/2.0.1.RELEASE/spring-boot-2.0.1.RELEASE.jar:/Users/donhuvy/.gradle/caches/modules-2/files-2.1/org.springframework.security/spring-security-core/5.0.4.RELEASE/f2924cd62fa8b14546b2b3c31dcd9e55abf9a5e/spring-security-core-5.0.4.RELEASE.jar:/Users/donhuvy/.m2/repository/org/springframework/spring-context/5.0.5.RELEASE/spring-context-5.0.5.RELEASE.jar:/Users/donhuvy/.m2/repository/org/springframework/spring-aop/5.0.5.RELEASE/spring-aop-5.0.5.RELEASE.jar:/Users/donhuvy/.m2/repository/org/hibernate/validator/hibernate-validator/6.0.9.Final/hibernate-validator-6.0.9.Final.jar:/Users/donhuvy/.m2/repository/org/springframework/spring-web/5.0.5.RELEASE/spring-web-5.0.5.RELEASE.jar:/Users/donhuvy/.m2/repository/org/thymeleaf/thymeleaf-spring5/3.0.9.RELEASE/thymeleaf-spring5-3.0.9.RELEASE.jar:/Users/donhuvy/.m2/repository/org/thymeleaf/thymeleaf/3.0.9.RELEASE/thymeleaf-3.0.9.RELEASE.jar:/Users/donhuvy/.m2/repository/com/zaxxer/HikariCP/2.7.8/HikariCP-2.7.8.jar:/Users/donhuvy/.m2/repository/org/springframework/data/spring-data-commons/2.0.6.RELEASE/spring-data-commons-2.0.6.RELEASE.jar:/Users/donhuvy/.m2/repository/org/springframework/boot/spring-boot-starter-logging/2.0.1.RELEASE/spring-boot-starter-logging-2.0.1.RELEASE.jar:/Users/donhuvy/.m2/repository/ch/qos/logback/logback-classic/1.2.3/logback-classic-1.2.3.jar:/Users/donhuvy/.m2/repository/org/apache/logging/log4j/log4j-to-slf4j/2.10.0/log4j-to-slf4j-2.10.0.jar:/Users/donhuvy/.m2/repository/org/slf4j/jul-to-slf4j/1.7.25/jul-to-slf4j-1.7.25.jar:/Users/donhuvy/.m2/repository/org/slf4j/slf4j-api/1.7.25/slf4j-api-1.7.25.jar:/Users/donhuvy/.m2/repository/org/attoparser/attoparser/2.0.4.RELEASE/attoparser-2.0.4.RELEASE.jar:/Users/donhuvy/.m2/repository/org/springframework/spring-orm/5.0.5.RELEASE/spring-orm-5.0.5.RELEASE.jar:/Users/donhuvy/.m2/repository/org/springframework/spring-jdbc/5.0.5.RELEASE/spring-jdbc-5.0.5.RELEASE.jar:/Users/donhuvy/.m2/repository/org/springframework/spring-tx/5.0.5.RELEASE/spring-tx-5.0.5.RELEASE.jar:/Users/donhuvy/.m2/repository/org/springframework/spring-beans/5.0.5.RELEASE/spring-beans-5.0.5.RELEASE.jar:/Users/donhuvy/.m2/repository/org/springframework/spring-expression/5.0.5.RELEASE/spring-expression-5.0.5.RELEASE.jar:/Users/donhuvy/.m2/repository/org/springframework/spring-core/5.0.5.RELEASE/spring-core-5.0.5.RELEASE.jar:/Users/donhuvy/.m2/repository/org/yaml/snakeyaml/1.19/snakeyaml-1.19.jar:/Users/donhuvy/.m2/repository/com/fasterxml/jackson/datatype/jackson-datatype-jsr310/2.9.5/jackson-datatype-jsr310-2.9.5.jar:/Users/donhuvy/.m2/repository/com/fasterxml/jackson/datatype/jackson-datatype-jdk8/2.9.5/jackson-datatype-jdk8-2.9.5.jar:/Users/donhuvy/.m2/repository/com/fasterxml/jackson/module/jackson-module-parameter-names/2.9.5/jackson-module-parameter-names-2.9.5.jar:/Users/donhuvy/.m2/repository/com/fasterxml/jackson/core/jackson-databind/2.9.5/jackson-databind-2.9.5.jar:/Users/donhuvy/.m2/repository/org/hdrhistogram/HdrHistogram/2.1.10/HdrHistogram-2.1.10.jar:/Users/donhuvy/.m2/repository/org/latencyutils/LatencyUtils/2.0.3/LatencyUtils-2.0.3.jar:/Users/donhuvy/.m2/repository/org/aspectj/aspectjweaver/1.8.13/aspectjweaver-1.8.13.jar:/Users/donhuvy/.m2/repository/org/hibernate/common/hibernate-commons-annotations/5.0.1.Final/hibernate-commons-annotations-5.0.1.Final.jar:/Users/donhuvy/.m2/repository/org/jboss/logging/jboss-logging/3.3.2.Final/jboss-logging-3.3.2.Final.jar:/Users/donhuvy/.m2/repository/org/hibernate/javax/persistence/hibernate-jpa-2.1-api/1.0.0.Final/hibernate-jpa-2.1-api-1.0.0.Final.jar:/Users/donhuvy/.m2/repository/ognl/ognl/3.1.12/ognl-3.1.12.jar:/Users/donhuvy/.m2/repository/org/javassist/javassist/3.22.0-GA/javassist-3.22.0-GA.jar:/Users/donhuvy/.m2/repository/antlr/antlr/2.7.7/antlr-2.7.7.jar:/Users/donhuvy/.m2/repository/org/jboss/jandex/2.0.3.Final/jandex-2.0.3.Final.jar:/Users/donhuvy/.m2/repository/com/fasterxml/classmate/1.3.4/classmate-1.3.4.jar:/Users/donhuvy/.m2/repository/dom4j/dom4j/1.6.1/dom4j-1.6.1.jar:/Users/donhuvy/.m2/repository/javax/validation/validation-api/2.0.1.Final/validation-api-2.0.1.Final.jar:/Users/donhuvy/.m2/repository/org/unbescape/unbescape/1.1.5.RELEASE/unbescape-1.1.5.RELEASE.jar:/Users/donhuvy/.m2/repository/org/springframework/spring-jcl/5.0.5.RELEASE/spring-jcl-5.0.5.RELEASE.jar:/Users/donhuvy/.m2/repository/com/fasterxml/jackson/core/jackson-annotations/2.9.0/jackson-annotations-2.9.0.jar:/Users/donhuvy/.m2/repository/com/fasterxml/jackson/core/jackson-core/2.9.5/jackson-core-2.9.5.jar:/Users/donhuvy/.m2/repository/ch/qos/logback/logback-core/1.2.3/logback-core-1.2.3.jar:/Users/donhuvy/.m2/repository/org/apache/logging/log4j/log4j-api/2.10.0/log4j-api-2.10.0.jar:/Applications/IntelliJ IDEA.app/Contents/lib/idea_rt.jar" com.donhuvy.AccountingApplication
Connected to the target VM, address: '127.0.0.1:51218', transport: 'socket'
The Class-Path manifest attribute in /Users/donhuvy/.gradle/caches/modules-2/files-2.1/com.sun.xml.bind/jaxb-core/2.3.0/d044c784e41d026778693fb44a8026c1fd9a7506/jaxb-core-2.3.0.jar referenced one or more files that do not exist: file:/Users/donhuvy/.gradle/caches/modules-2/files-2.1/com.sun.xml.bind/jaxb-core/2.3.0/d044c784e41d026778693fb44a8026c1fd9a7506/jaxb-api.jar
The Class-Path manifest attribute in /Users/donhuvy/.gradle/caches/modules-2/files-2.1/com.sun.xml.bind/jaxb-impl/2.3.0/3a3c6a62719d967175b76b63925f1fb495f11437/jaxb-impl-2.3.0.jar referenced one or more files that do not exist: file:/Users/donhuvy/.gradle/caches/modules-2/files-2.1/com.sun.xml.bind/jaxb-impl/2.3.0/3a3c6a62719d967175b76b63925f1fb495f11437/jaxb-core.jar
22:50:24.905 [main] DEBUG org.springframework.boot.devtools.settings.DevToolsSettings - Included patterns for restart : []
22:50:24.908 [main] DEBUG org.springframework.boot.devtools.settings.DevToolsSettings - Excluded patterns for restart : [/spring-boot-starter-[\w-]+/, /spring-boot/target/classes/, /spring-boot-starter/target/classes/, /spring-boot-devtools/target/classes/, /spring-boot-actuator/target/classes/, /spring-boot-autoconfigure/target/classes/]
22:50:24.908 [main] DEBUG org.springframework.boot.devtools.restart.ChangeableUrls - Matching URLs for reloading : [file:/Users/donhuvy/Documents/source_code/github.com/donhuvy/accounting/out/production/classes/, file:/Users/donhuvy/Documents/source_code/github.com/donhuvy/accounting/out/production/resources/]

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v2.0.1.RELEASE)

WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.springframework.cglib.core.ReflectUtils$1 (file:/Users/donhuvy/.m2/repository/org/springframework/spring-core/5.0.5.RELEASE/spring-core-5.0.5.RELEASE.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain)
WARNING: Please consider reporting this to the maintainers of org.springframework.cglib.core.ReflectUtils$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

stiofand · 2018-05-12T14:32:04Z

Happens with me running Gradle 4.7 on Java 10 SDK with Ubuntu 18:04 Lts

jmaciasluque · 2018-06-08T07:12:32Z

It happens with Maven too, not a Gradle issue per se...

volare2016 · 2018-07-10T02:27:48Z

Happened to me when I tried to import data using the read.xlsx():

WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.apache.poi.util.SAXHelper (file:/Library/Frameworks/R.framework/Versions/3.5/Resources/library/xlsxjars/java/poi-ooxml-3.10.1-20140818.jar) to method com.sun.org.apache.xerces.internal.util.SecurityManager.setEntityExpansionLimit(int)
WARNING: Please consider reporting this to the maintainers of org.apache.poi.util.SAXHelper
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

Spidermain50 · 2018-08-09T14:45:58Z

Happens with me running Gradle 4.9 on Java 10 SDK with Windows 10 Pro

marcphilipp · 2018-08-09T14:50:34Z

In case of org.codehaus.groovy.reflection.CachedClass it's a Groovy issue and we'll have to update our Gradle version as soon as there's one that does not produce this warning anymore.

@volare2016 org.apache.poi.util.SAXHelper does not sound like it's called from Gradle core. Where does read.xlsx() come from, a plugin?

Shonminh · 2018-08-25T07:24:43Z

Use gradle -v get warning message:

╰─$ gradle -v
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.codehaus.groovy.reflection.CachedClass (file:/usr/local/Cellar/gradle/4.9/libexec/lib/groovy-all-2.4.12.jar) to method java.lang.Object.finalize()
WARNING: Please consider reporting this to the maintainers of org.codehaus.groovy.reflection.CachedClass
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

------------------------------------------------------------
Gradle 4.9
------------------------------------------------------------

Build time:   2018-07-16 08:14:03 UTC
Revision:     efcf8c1cf533b03c70f394f270f46a174c738efc

Kotlin DSL:   0.18.4
Kotlin:       1.2.41
Groovy:       2.4.12
Ant:          Apache Ant(TM) version 1.9.11 compiled on March 23 2018
JVM:          10.0.2 ("Oracle Corporation" 10.0.2+13)
OS:           Mac OS X 10.13.4 x86_64

jdk version is:

╰─$ java -version
java version "10.0.2" 2018-07-17
Java(TM) SE Runtime Environment 18.3 (build 10.0.2+13)
Java HotSpot(TM) 64-Bit Server VM 18.3 (build 10.0.2+13, mixed mode)

oehme · 2018-08-25T10:47:38Z

As explained several times, this is a Groovy issue and can't be fixed by Gradle.

bw-smarkwell · 2018-08-27T19:05:56Z

@oehme / @marcphilipp it probably makes sense to lock the issue (believe you can do that in GitHub)

youzeliang · 2018-09-02T05:28:09Z

when I use the netty, the situation also happend ,I am trying to change the jdk

chongiscool · 2018-09-08T13:02:20Z

Get same issue on Ubuntu 16.04LTS
Use gradle -v get warning msg:

WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.codehaus.groovy.reflection.CachedClass (file:/usr/local/gradle/gradle-4.10/lib/groovy-all-2.4.15.jar) to method java.lang.Object.finalize()
WARNING: Please consider reporting this to the maintainers of org.codehaus.groovy.reflection.CachedClass
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

------------------------------------------------------------
Gradle 4.10
------------------------------------------------------------

Build time:   2018-08-27 18:35:06 UTC
Revision:     ee3751ed9f2034effc1f0072c2b2ee74b5dce67d

Kotlin DSL:   1.0-rc-3
Kotlin:       1.2.60
Groovy:       2.4.15
Ant:          Apache Ant(TM) version 1.9.11 compiled on March 23 2018
JVM:          10.0.1 ("Oracle Corporation" 10.0.1+10)
OS:           Linux 4.15.0-33-generic amd64

and JDK version is:

java 10.0.1 2018-04-17
Java(TM) SE Runtime Environment 18.3 (build 10.0.1+10)
Java HotSpot(TM) 64-Bit Server VM 18.3 (build 10.0.1+10, mixed mode)

freesOcean · 2019-11-13T08:27:33Z

Happens with me when I use Mybatis Plus. I solved this problem by update Mybatis Plus Version to 3.2.0.

steklopod · 2020-01-22T09:37:00Z

Maven + Java 11:

[WARNING] 'tools.jar' was not found, kapt may work unreliably
[INFO] Applied plugin: 'spring'
[INFO] Applied plugin: 'all-open'
[INFO] Applied plugin: 'no-arg'
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.jetbrains.kotlin.kapt3.base.javac.KaptJavaFileManager (file:/C:/Users/dkoltovich/.m2/repository/org/jetbrains/kotlin/kotlin-annotation-processing-maven/1.3.61/kotlin-annotation-processing-maven-1.3.61.jar) to method com.sun.tools.javac.file.BaseFileManager.handleOption(com.sun.tools.javac.main.Option,java.lang.String)
WARNING: Please consider reporting this to the maintainers of org.jetbrains.kotlin.kapt3.base.javac.KaptJavaFileManager
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

actionsl · 2021-09-16T10:59:49Z

Just received a similar error with gradle 7.0.2, Apache Spark and Java 11

blindpirate closed this as completed Oct 10, 2017

douggie mentioned this issue Apr 2, 2018

NoClassDefFoundError: javax/xml/bind/JAXBException timolson/cointrader#149

Closed

trevjonez mentioned this issue Aug 28, 2018

WARNING: An illegal reflective access operation has occurred #6535

Closed

RMCS5800 mentioned this issue Oct 4, 2018

Errors coming up Ultimates1/employee-management-system#6

Closed

lukaseckert mentioned this issue May 24, 2019

Illegal Reflective Access Warning with Java 9+ mongock/mongock#68

Closed

namednil mentioned this issue Dec 12, 2019

Build fails with test failure coli-saar/am-tools#5

Closed

psibre mentioned this issue Apr 24, 2020

Illegal Reflective Access Warning marytts/marytts#949

Closed

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WARNING: An illegal reflective access operation has occurred (Gradle, Java 9, Windows 10) #3118

WARNING: An illegal reflective access operation has occurred (Gradle, Java 9, Windows 10) #3118

ghost commented Oct 10, 2017

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WARNING: An illegal reflective access operation has occurred (Gradle, Java 9, Windows 10) #3118

WARNING: An illegal reflective access operation has occurred (Gradle, Java 9, Windows 10) #3118

Comments

ghost commented Oct 10, 2017

Expected Behavior

Gradle 4.2.1

Current Behavior

Gradle 4.2.1

Context

Steps to Reproduce (for bugs)

Your Environment

blindpirate commented Oct 10, 2017

oehme commented Oct 10, 2017

bw-smarkwell commented Dec 30, 2017

maludwig commented Mar 8, 2018

oehme commented Mar 8, 2018

maludwig commented Mar 9, 2018

oehme commented Mar 10, 2018

VladyslavKurmaz commented Mar 10, 2018

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Gradle 4.6

maludwig commented Mar 12, 2018

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lanegoolsby commented Apr 7, 2018

Gradle 4.6

donhuvy commented Apr 30, 2018

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jmaciasluque commented Jun 8, 2018

volare2016 commented Jul 10, 2018

Spidermain50 commented Aug 9, 2018

marcphilipp commented Aug 9, 2018

Shonminh commented Aug 25, 2018

oehme commented Aug 25, 2018 • edited Loading

bw-smarkwell commented Aug 27, 2018

youzeliang commented Sep 2, 2018

chongiscool commented Sep 8, 2018

freesOcean commented Nov 13, 2019

steklopod commented Jan 22, 2020

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