Related
While running a script, I am getting the following error message in the Eclipse console:
Class has been compiled by a more recent version of the Java Environment (class file version 53.0), this version of the Java Runtime only recognizes class file versions up to 52.0.
Java Version: 8
IDE: Eclipse Oxygen
Firefox Version: 46
This is just a version mismatch. You have compiled your code using java version 9 and your current JRE is version 8. Try upgrading your JRE to 9.
49 = Java 5
50 = Java 6
51 = Java 7
52 = Java 8
53 = Java 9
54 = Java 10
55 = Java 11
56 = Java 12
57 = Java 13
58 = Java 14
59 = Java 15
60 = Java 16
61 = Java 17
62 = Java 18
63 = Java 19
IDE: Eclipse Oxygen.3
To temporarily correct the problem do the following:
Project menu > Properties > Java Compiler > Compiler compliance level > 1.8
A permanent fix likely involves installing JDK 9.
FYI 1.8 is what Java 8 is called.
Side bar
I recently returned to Java after a foray into C# (a breath of fresh air) and installed Eclipse Oxygen onto a clean system that had never had Java installed on it before. This default everything with a brand new install of Eclipse Oxygen yet somehow or other Eclipse can't get its own parameters to match the jdk that's installed. This is the second project I created and the second time I ran into this headache. Time to go back to C#?
Related Question
has been compiled by a more recent version of the Java Runtime (class file version 53.0)
You might see this error in IntelliJ as well and this comes up in Google.
I think it's a Gradle error more than an IDE error.
The fix (stolen from here) is configure Java 11 as a Gradle JVM in IntelliJ:
File -> Settings -> Build, Execution & Development -> Build Tools -> Gradle and change Gradle JVM to 11
That screenshot stolen from the Jetbrains issue as well
You can try this way
javac --release 8 yourClass.java
For Android Studio, File -> Project Structure [Ctrl + Alt + Shift + S]
53 stands for java-9, so it means that whatever class you have has been compiled with javac-9 and you try to run it with jre-8. Either re-compile that class with javac-8 or use the jre-9
For temporary solution just right click on Project => Properties => Java compiler => over there please select compiler compliance level 1.8 => .class compatibility 1.8 => source compatibility 1.8.
Then your code will start to execute on version 1.8.
I had a similar issue from the console after building a Jar in Intellij. Using the Java configuration to update to a newer version (Windows -> Configure Java -> Update -> Update Now) didn't work and stuck at version 1.8 (Java 8).
To switch to a more recent version locally I had to install the Java 15 JDK from https://www.oracle.com/uk/java/technologies/javase-jdk15-downloads.html and add that to my Java runtime environment settings.
The solution for me was doing what Andrei Kuznetsov said at https://youtrack.jetbrains.com/issue/IDEA-251407/Failed-to-run-Android-project-in-the-Idea-20203-EAP-OutputBuildAction-has-been-compiled-by-a-more-recent-version-of-the-Java, summarized in the following image:
"Root cause: IDEA sources are now compiled against Java 11. Known workaround is to configure Java 11 as a Gradle JVM." (Andrei Kuznetsov)
Your JDK version: Java 8
Your JRE version: Java 9
Here your JRE version is different than the JDK version that's the case. Here you can compile all the java classes using JDK version 1.8. If you want to compile only one java class just change the *.java into <yourclassname>.java
javac -source 1.8 -target 1.8 *.java
source: The version that your source code requires to compile.
target: The oldest JRE version you want to support.
I'm writing this because I found the other answers hard to understand.
Essentially your JRE is not updated and/or Eclipse is not configured to use the most recent JRE.
On Windows, go to Control Panel -> Programs -> Java -> update and proceed to update java
or if you don't have Java, go to Oracle's website and download the most recent JRE.
Once this is done, go into eclipse, and under the project view, right click on your project, select Java Build Path, double click on JRE System Library, then Select Workspace Default JRE 14.1.
If a recent version of Java doesn't show up here, it probably isn't installed. Check you JRE(NOT JDK) version and make sure it's recent. If it is, try restarting the computer then trying this again.
IDE : Eclipse 2021-09
This is caused because you have compiled the code with java version 9 and have java8 installed. You don't have to update to solve this issue.
Right click on project > properties > Java Compiler > untick-Enable
project specific settings > configure workspace settings > tick-Use
default compliance settings > Apply and Close.
Now your code should be executed properly.
I've reproduced on Windows 10 the similar issue in format like:
Error: LinkageError occurred while loading main class ...
java.lang.UnsupportedClassVersionError: com/.../ServiceApplication
has been compiled by a more recent version of the Java Runtime (class file version 62.0),
this version of the Java Runtime only recognizes class file versions up to 61.0
after upgrading the project from Java 17 to Java 18.
I had project settings regarding to Java 18:
Command line:
java version "18.0.1.1" 2022-04-22
Java(TM) SE Runtime Environment (build 18.0.1.1+2-6)
Java HotSpot(TM) 64-Bit Server VM (build 18.0.1.1+2-6, mixed mode, sharing)
Project Structure -> Project Settings -> Project:
Project Structure -> Project Settings -> Modules:
Project Structure -> Platform Settings -> SDKs:
And the reason of this issue was:
I forgot to specify the correct version for Run/Debug Configurations -> Build and run to Java 18 instead of Java 17:
As it was compiled with a newer Java version, but running on the older one.
If it's Maven-related issue, you can modify POM by specifying the -source and -target of the Java Compiler.
Additional helpful links:
Setting the Java Version in Maven
Consuming Jar Artifact of a Specific Java Version
Go to Project section, click on properties > then to Java compiler > check compiler compliance level is 1.8 , or there should be no yellow warning at bottom
Refreshing gradle dependencies works for me: Right click over the project -> Gradle -> Refresh Gradle Project.
You should check your Project Facets.
Project Properties > Project Facets
Change java version to the same version you are using. That work for me!
I faced this error in Intellij. Apparently, choosing java 1.8 as the project SDK doesn't affect the javac compiler that's used to build the project.
To change that, go to Settings -> Build, Execution, Deployment -> Compiler -> Java Compiler, and change Project bytecode version to 8.
If you're using IntelliJ IDEA and having this error, try this.
Command + , (Open Preferences)
Build, Execution, Deployment > Build Tools > Gradle
Gradle JVM > Change it to a proper version
This is getting as an example
if your computer running on an older version of java and the Neo4J is compiled on the latest version, please try to install the same version or upper to your computer.
I'm getting the same problem with Sonarqube
has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0
Sonarqube with AzureDevOps error output:
INFO: SonarScanner 4.6.2.2472
INFO: Java 1.8.0_231 Oracle Corporation (32-bit)
INFO: Windows Server 2016 10.0 x86
INFO: User cache: C:\Windows\system32\config\systemprofile.sonar\cache
INFO: Scanner configuration file: C:\agent_a_work_tasks\SonarQubePrepare_15b84ca1-b62f-4a2a-a403-89b77a063157\5.4.0\classic-sonar-scanner-msbuild\sonar-scanner-4.6.2.2472\bin..\conf\sonar-scanner.properties
INFO: Project root configuration file: C:\agent_a_work\189.sonarqube\out\sonar-project.properties
INFO: Analyzing on SonarQube server 9.4.0
INFO: Default locale: "en_AU", source code encoding: "windows-1252" (analysis is platform dependent)
INFO: ------------------------------------------------------------------------
INFO: EXECUTION FAILURE
INFO: ------------------------------------------------------------------------
INFO: Total time: 0.405s
INFO: Final Memory: 3M/15M
##[error]ERROR: Error during SonarScanner execution
java.lang.UnsupportedClassVersionError: org/sonar/batch/bootstrapper/EnvironmentInformation has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0
I had Java v11 installed on the Sonarcube server, but the error is saying its the Build Agent that doesn't have Java v11.
I decided to add the Java v12 bin path to the Environment Variable Path for it to be detected. IMPORTANT THIS NEEDS TO BE DONE ON THE BUILD AGENT:
For a Hosted Build Agent you can install JDK v11 or use this PowerShell script step:
- task: PowerShell#2
displayName: 'Download and Install Java v11'
inputs:
targetType: 'inline'
script: |
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
$Command = "c:\jdk-11.0.15_windows-x64_bin.exe"
$Parms = "/s"
Write-Host [System.IO.File]::Exists($Command)
if ([System.IO.File]::Exists($Command)) {
Write-Host 'Downloading Java11.exe'
Invoke-WebRequest https://yourOwnUrl.com/jdk-11.0.15_windows-x64_bin.exe -OutFile $Command
}
Write-Host [System.IO.File]::Exists($Command)
& "$Command" $Prms
[System.Environment]::SetEnvironmentVariable("JAVA_HOME", "C:\Program Files\Java\jdk-11.0.15")
[System.Environment]::SetEnvironmentVariable("Path", [System.Environment]::GetEnvironmentVariable('Path', [System.EnvironmentVariableTarget]::Machine) + ";$($env:JAVA_HOME)\bin")
In my case, I'm building with VS2019 some C++ code that is using ANTLR4.
ANTLR4 is java based, and to use it I run java commands as a custom build step.
Earlier that day I had updated my JRE (Java Runtime Environment) on my new laptop to 1.8. Not thinking, since it's been a year since I ran ANTLR4 stuff... I need the full JDK to COMPILE with java. So I had a 1.8 RUNTIME, but the VS2019 build shell was finding the JDK1.7 compiler. Once I installed the 1.8 JDK, all was good.
So 80% of the time JRE is fine for me... it's just when I need the full JDK, DOH I need the full JDK.
In build.gradle(app) update as below: (Worked for me)
kotlinOptions {
jvmTarget = '1.8'
}
For me this problem was resolved by just installing older version of testng. Looks like It compiles with my Java 8
If you're using IntelliJ IDEA and having this error, try this.
1. Command + , (Open Preferences)
2. Build, Execution, Deployment > Build Tools > Gradle
3. Gradle JVM > Change it to a proper version
Check the version of Java configured in IDE by navigating to Settings -> Build, Execution, Deployment > Build Tools > Gradle
In my case, I use the IntellJ Idea and set JDK11 as my SDK and JDK17 in gradle setting.
Just update my SDK as JDK17, it was solved
Check the JDK in "Project Setting"(CMD+;) -> SDK
with
the gradle JVM in "Preference"(CMD+,) -> Build Tools -> gradle JVM
Faced the same issue when initialise my project from spring initizer
We need to match the version of java.sourceCompatibility and jvmTarget used for run and compile in "build.gradle.kt" file.
Last week, I updated my Mac's Android Studio from 2021.2.1 to 2021.3.1. Then our project was built failed for the similar reason:
Cause: com/android/tools/idea/gradle/run/OutputBuildAction has been
compiled by a more recent version of the Java Runtime (class file
version 55.0), this version of the Java Runtime only recognizes class
file versions up to 53.0
I found several discussion on the Jetbrains YouTrack Forum: Failed to run Android project in the Idea 2020.3 EAP (OutputBuildAction has been compiled by a more recent version of the Java Runtime (class file version 55.0)). The suggested workaround is to update the defined Gradle JDK version to JDK11, but many Android projects don't support Gradle JDK11, so does mine.
Another solution is to downgrade Android Studio from 2021.3.1 to 2021.2.1, and it worked for me. Hope it helps.
it looks like everyone is using windows for development, but if you use Linux, lower your Java version. maybe install JDK 8, the version table provided by #Nithin should give you an idea of which version you want to install.
After configuring the version of the compiler to 1.8 (your required version), try the older version of spring boot currently it is 3.0.0 by default but you can try 2.7.6 instead.
enter image description here
While running a script, I am getting the following error message in the Eclipse console:
Class has been compiled by a more recent version of the Java Environment (class file version 53.0), this version of the Java Runtime only recognizes class file versions up to 52.0.
Java Version: 8
IDE: Eclipse Oxygen
Firefox Version: 46
This is just a version mismatch. You have compiled your code using java version 9 and your current JRE is version 8. Try upgrading your JRE to 9.
49 = Java 5
50 = Java 6
51 = Java 7
52 = Java 8
53 = Java 9
54 = Java 10
55 = Java 11
56 = Java 12
57 = Java 13
58 = Java 14
59 = Java 15
60 = Java 16
61 = Java 17
62 = Java 18
63 = Java 19
IDE: Eclipse Oxygen.3
To temporarily correct the problem do the following:
Project menu > Properties > Java Compiler > Compiler compliance level > 1.8
A permanent fix likely involves installing JDK 9.
FYI 1.8 is what Java 8 is called.
Side bar
I recently returned to Java after a foray into C# (a breath of fresh air) and installed Eclipse Oxygen onto a clean system that had never had Java installed on it before. This default everything with a brand new install of Eclipse Oxygen yet somehow or other Eclipse can't get its own parameters to match the jdk that's installed. This is the second project I created and the second time I ran into this headache. Time to go back to C#?
Related Question
has been compiled by a more recent version of the Java Runtime (class file version 53.0)
You might see this error in IntelliJ as well and this comes up in Google.
I think it's a Gradle error more than an IDE error.
The fix (stolen from here) is configure Java 11 as a Gradle JVM in IntelliJ:
File -> Settings -> Build, Execution & Development -> Build Tools -> Gradle and change Gradle JVM to 11
That screenshot stolen from the Jetbrains issue as well
You can try this way
javac --release 8 yourClass.java
For Android Studio, File -> Project Structure [Ctrl + Alt + Shift + S]
53 stands for java-9, so it means that whatever class you have has been compiled with javac-9 and you try to run it with jre-8. Either re-compile that class with javac-8 or use the jre-9
For temporary solution just right click on Project => Properties => Java compiler => over there please select compiler compliance level 1.8 => .class compatibility 1.8 => source compatibility 1.8.
Then your code will start to execute on version 1.8.
I had a similar issue from the console after building a Jar in Intellij. Using the Java configuration to update to a newer version (Windows -> Configure Java -> Update -> Update Now) didn't work and stuck at version 1.8 (Java 8).
To switch to a more recent version locally I had to install the Java 15 JDK from https://www.oracle.com/uk/java/technologies/javase-jdk15-downloads.html and add that to my Java runtime environment settings.
The solution for me was doing what Andrei Kuznetsov said at https://youtrack.jetbrains.com/issue/IDEA-251407/Failed-to-run-Android-project-in-the-Idea-20203-EAP-OutputBuildAction-has-been-compiled-by-a-more-recent-version-of-the-Java, summarized in the following image:
"Root cause: IDEA sources are now compiled against Java 11. Known workaround is to configure Java 11 as a Gradle JVM." (Andrei Kuznetsov)
Your JDK version: Java 8
Your JRE version: Java 9
Here your JRE version is different than the JDK version that's the case. Here you can compile all the java classes using JDK version 1.8. If you want to compile only one java class just change the *.java into <yourclassname>.java
javac -source 1.8 -target 1.8 *.java
source: The version that your source code requires to compile.
target: The oldest JRE version you want to support.
I'm writing this because I found the other answers hard to understand.
Essentially your JRE is not updated and/or Eclipse is not configured to use the most recent JRE.
On Windows, go to Control Panel -> Programs -> Java -> update and proceed to update java
or if you don't have Java, go to Oracle's website and download the most recent JRE.
Once this is done, go into eclipse, and under the project view, right click on your project, select Java Build Path, double click on JRE System Library, then Select Workspace Default JRE 14.1.
If a recent version of Java doesn't show up here, it probably isn't installed. Check you JRE(NOT JDK) version and make sure it's recent. If it is, try restarting the computer then trying this again.
IDE : Eclipse 2021-09
This is caused because you have compiled the code with java version 9 and have java8 installed. You don't have to update to solve this issue.
Right click on project > properties > Java Compiler > untick-Enable
project specific settings > configure workspace settings > tick-Use
default compliance settings > Apply and Close.
Now your code should be executed properly.
I've reproduced on Windows 10 the similar issue in format like:
Error: LinkageError occurred while loading main class ...
java.lang.UnsupportedClassVersionError: com/.../ServiceApplication
has been compiled by a more recent version of the Java Runtime (class file version 62.0),
this version of the Java Runtime only recognizes class file versions up to 61.0
after upgrading the project from Java 17 to Java 18.
I had project settings regarding to Java 18:
Command line:
java version "18.0.1.1" 2022-04-22
Java(TM) SE Runtime Environment (build 18.0.1.1+2-6)
Java HotSpot(TM) 64-Bit Server VM (build 18.0.1.1+2-6, mixed mode, sharing)
Project Structure -> Project Settings -> Project:
Project Structure -> Project Settings -> Modules:
Project Structure -> Platform Settings -> SDKs:
And the reason of this issue was:
I forgot to specify the correct version for Run/Debug Configurations -> Build and run to Java 18 instead of Java 17:
As it was compiled with a newer Java version, but running on the older one.
If it's Maven-related issue, you can modify POM by specifying the -source and -target of the Java Compiler.
Additional helpful links:
Setting the Java Version in Maven
Consuming Jar Artifact of a Specific Java Version
Go to Project section, click on properties > then to Java compiler > check compiler compliance level is 1.8 , or there should be no yellow warning at bottom
Refreshing gradle dependencies works for me: Right click over the project -> Gradle -> Refresh Gradle Project.
You should check your Project Facets.
Project Properties > Project Facets
Change java version to the same version you are using. That work for me!
I faced this error in Intellij. Apparently, choosing java 1.8 as the project SDK doesn't affect the javac compiler that's used to build the project.
To change that, go to Settings -> Build, Execution, Deployment -> Compiler -> Java Compiler, and change Project bytecode version to 8.
If you're using IntelliJ IDEA and having this error, try this.
Command + , (Open Preferences)
Build, Execution, Deployment > Build Tools > Gradle
Gradle JVM > Change it to a proper version
This is getting as an example
if your computer running on an older version of java and the Neo4J is compiled on the latest version, please try to install the same version or upper to your computer.
I'm getting the same problem with Sonarqube
has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0
Sonarqube with AzureDevOps error output:
INFO: SonarScanner 4.6.2.2472
INFO: Java 1.8.0_231 Oracle Corporation (32-bit)
INFO: Windows Server 2016 10.0 x86
INFO: User cache: C:\Windows\system32\config\systemprofile.sonar\cache
INFO: Scanner configuration file: C:\agent_a_work_tasks\SonarQubePrepare_15b84ca1-b62f-4a2a-a403-89b77a063157\5.4.0\classic-sonar-scanner-msbuild\sonar-scanner-4.6.2.2472\bin..\conf\sonar-scanner.properties
INFO: Project root configuration file: C:\agent_a_work\189.sonarqube\out\sonar-project.properties
INFO: Analyzing on SonarQube server 9.4.0
INFO: Default locale: "en_AU", source code encoding: "windows-1252" (analysis is platform dependent)
INFO: ------------------------------------------------------------------------
INFO: EXECUTION FAILURE
INFO: ------------------------------------------------------------------------
INFO: Total time: 0.405s
INFO: Final Memory: 3M/15M
##[error]ERROR: Error during SonarScanner execution
java.lang.UnsupportedClassVersionError: org/sonar/batch/bootstrapper/EnvironmentInformation has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0
I had Java v11 installed on the Sonarcube server, but the error is saying its the Build Agent that doesn't have Java v11.
I decided to add the Java v12 bin path to the Environment Variable Path for it to be detected. IMPORTANT THIS NEEDS TO BE DONE ON THE BUILD AGENT:
For a Hosted Build Agent you can install JDK v11 or use this PowerShell script step:
- task: PowerShell#2
displayName: 'Download and Install Java v11'
inputs:
targetType: 'inline'
script: |
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
$Command = "c:\jdk-11.0.15_windows-x64_bin.exe"
$Parms = "/s"
Write-Host [System.IO.File]::Exists($Command)
if ([System.IO.File]::Exists($Command)) {
Write-Host 'Downloading Java11.exe'
Invoke-WebRequest https://yourOwnUrl.com/jdk-11.0.15_windows-x64_bin.exe -OutFile $Command
}
Write-Host [System.IO.File]::Exists($Command)
& "$Command" $Prms
[System.Environment]::SetEnvironmentVariable("JAVA_HOME", "C:\Program Files\Java\jdk-11.0.15")
[System.Environment]::SetEnvironmentVariable("Path", [System.Environment]::GetEnvironmentVariable('Path', [System.EnvironmentVariableTarget]::Machine) + ";$($env:JAVA_HOME)\bin")
In my case, I'm building with VS2019 some C++ code that is using ANTLR4.
ANTLR4 is java based, and to use it I run java commands as a custom build step.
Earlier that day I had updated my JRE (Java Runtime Environment) on my new laptop to 1.8. Not thinking, since it's been a year since I ran ANTLR4 stuff... I need the full JDK to COMPILE with java. So I had a 1.8 RUNTIME, but the VS2019 build shell was finding the JDK1.7 compiler. Once I installed the 1.8 JDK, all was good.
So 80% of the time JRE is fine for me... it's just when I need the full JDK, DOH I need the full JDK.
In build.gradle(app) update as below: (Worked for me)
kotlinOptions {
jvmTarget = '1.8'
}
For me this problem was resolved by just installing older version of testng. Looks like It compiles with my Java 8
If you're using IntelliJ IDEA and having this error, try this.
1. Command + , (Open Preferences)
2. Build, Execution, Deployment > Build Tools > Gradle
3. Gradle JVM > Change it to a proper version
Check the version of Java configured in IDE by navigating to Settings -> Build, Execution, Deployment > Build Tools > Gradle
In my case, I use the IntellJ Idea and set JDK11 as my SDK and JDK17 in gradle setting.
Just update my SDK as JDK17, it was solved
Check the JDK in "Project Setting"(CMD+;) -> SDK
with
the gradle JVM in "Preference"(CMD+,) -> Build Tools -> gradle JVM
Faced the same issue when initialise my project from spring initizer
We need to match the version of java.sourceCompatibility and jvmTarget used for run and compile in "build.gradle.kt" file.
Last week, I updated my Mac's Android Studio from 2021.2.1 to 2021.3.1. Then our project was built failed for the similar reason:
Cause: com/android/tools/idea/gradle/run/OutputBuildAction has been
compiled by a more recent version of the Java Runtime (class file
version 55.0), this version of the Java Runtime only recognizes class
file versions up to 53.0
I found several discussion on the Jetbrains YouTrack Forum: Failed to run Android project in the Idea 2020.3 EAP (OutputBuildAction has been compiled by a more recent version of the Java Runtime (class file version 55.0)). The suggested workaround is to update the defined Gradle JDK version to JDK11, but many Android projects don't support Gradle JDK11, so does mine.
Another solution is to downgrade Android Studio from 2021.3.1 to 2021.2.1, and it worked for me. Hope it helps.
it looks like everyone is using windows for development, but if you use Linux, lower your Java version. maybe install JDK 8, the version table provided by #Nithin should give you an idea of which version you want to install.
After configuring the version of the compiler to 1.8 (your required version), try the older version of spring boot currently it is 3.0.0 by default but you can try 2.7.6 instead.
enter image description here
I'm running s simple pyspark python script in Pycharm, whithin an anaconda env with Python 3.7 (pyspark version 2.4.4) and I got error :
pyspark.sql.utils.IllegalArgumentException: 'Unsupported class file major version 55'.
I've followed the potential solutions I found on stackoverflow but non of them works, I followed this one:
https://stackoverflow.com/a/54704928/12375559: I've added java1.8.0_221 in my system env variables:
but when I type java -version in Pycharm terminal it's still using java11.0.6:
>java -version
openjdk version "11.0.6" 2020-01-14
OpenJDK Runtime Environment (build 11.0.6+8-b765.1)
OpenJDK 64-Bit Server VM (build 11.0.6+8-b765.1, mixed mode)
Then I found this:
Pyspark throws IllegalArgumentException: 'Unsupported class file major version 55' when trying to use udf switch boot jdk of Pycharm (2xshift -> jdk -> select jdk 1.8)
So I navigated to Pycharm Switch IDE Boot JDK:
I can see the second option is 1.8 but without anaconda plugin, so I'm not sure what to do now because I don't want to mess up with my settings, might someone be able to help me please? Many thanks!
The 55 error is caused by an older Java version trying to execute Java version 11 code (in a .jar or .class file). So it seems like an older Java version (for example Java 8 (a JVM 8)) is used, but it encounters a part compiled in Java 11 (see 55 is Java 11).
Since Java 8 is less well supported, you could try to use Java 11 or newer (see Java version history). You could try to use PySpark 3.0.1 with Python 3.8 and Java 11. That way, you have recent parts that should be able to work together.
These links might also be helpful:
Specify Java version in a Conda environment
Spark Error - Unsupported class file major version
I am trying to export my Java Application to Mac. The application is based on Compiler Complience Level 1.7. I tried different methods to bundle the application.
1) Eclipse. The latest version of JVM that I can use to export on Eclipse is 1.6*.
2) Maven. It looks like on Maven also the same problem exists. As when I used following command it showed a version related error.
System:
~Jack$ java -version
java version "1.8.0_25"
Java(TM) SE Runtime Environment (build 1.8.0_25-b17)
Java HotSpot(TM) 64-Bit Server VM (build 25.25-b02, mixed mode).
Maven method
Maven Command
mvn package osxappbundle:bundle -DmainClass=com.example.Main
Errors that Maven returns
type javax.swing.JList does not take parameters
and
cannot access org.json.JSONArray
bad class file: org/json/JSONArray.class(org/json:JSONArray.class)
class file has wrong version 52.0, should be 50.0
*I know these errors are related to the version of Java. My compiler is 1.7 but when I use maven to bundle it, above errors will be shown.
Eclipse method
Version: Luna Service Release 1a (4.4.1)
What should I do? I could find other alternatives like JarBundler but did not work.
There are two different kinds of Java app bundle on OSX. The older kind works with Apple Java versions (up to Java 6) and the newer kind with Oracle Java (7 and later). The maven osxappbundle plugin only supports the former, which is why it won't use Java later than 6. I presume the eclipse tool you're using is the same.
This alternative Maven plugin claims to work with Oracle Java versions.
The new recommended way to create Java application bundles in OS X is to use Oracle's appbundler. This is Ant-based.
There is also a fork which provides some extra functionality.
My local setup has all java 6 configured. I needed catalina jar file. So I took the latest one -
http://mvnrepository.com/artifact/org.apache.tomcat/tomcat-catalina/8.0.15
but that gave me following errors/warnings
warning: javalangObject.class(javalang:Object.class): major version 51 is newer than 50, the highest major version supported by this compiler.
and build failed.
Only way this was possible is that catalina.jar is compiled with java 7 and my setup is using java6. I confirmed that was the case by using an older version of the library.
http://mvnrepository.com/artifact/org.apache.tomcat/catalina/6.0.35
I would like to know how do we know which library version is compiled with which version of java. Specifically in Maven I don't see any such information.
Major version of 51 means it was compiled with Java 7. Major version 52 means, it was compiled with Java 8. Java 6 has major version 50.
You may extract some class files out of the jar downloaded from Maven. Then check the major version of the class as below:
$ javap -verbose someclass.class | grep -i major
Which will indicate the javac version used for compiling.