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Installation on ubuntu crashes with XML parser class loading issues

Hello fellow forum members.

I have tried following the previous guides but downgrading from OpenJDK 11 to OpenJDK 8 did not help and neither did --add-modules help with the dreaded XML parsing errors.

Here is my uname:

5.3.0-51-generic #44-Ubuntu SMP Wed Apr 22 21:09:44 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

Here is my OpenJDK version

openjdk version "1.8.0_252"
OpenJDK Runtime Environment (build 1.8.0_252-8u252-b09-1~19.10-b09)
OpenJDK 64-Bit Server VM (build 25.252-b09, mixed mode)

Here is the crash log

Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/bind/DatatypeConverter
        at com.rapidminer.license.verification.JarVerifier.createPublicKey(JarVerifier.java:267)
        at com.rapidminer.license.verification.JarVerifier.<clinit>(JarVerifier.java:137)
        at com.rapidminer.launcher.GUILauncher.main(GUILauncher.java:286)
Caused by: java.lang.ClassNotFoundException: javax.xml.bind.DatatypeConverter
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
        at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
        ... 3 more

This is newest version downloaded a few days ago, on an academic license.

As I need RapidMiner to do my homeworks I would be very glad if this were solved on a shorter notice.

Anyone has any idea how to fix?

Thank you all.

Stay healthy.

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AI Studio

XML

Errors

Installation

Linux + variants

Accepted answers

aleksandar_jovanov

Fixed it by the following

At line 49 I've added

JAVA=/usr/lib/jvm/java-8-openjdk-amd64/bin/java

And now it launches correctly.

I assume my initial issue was due to having both fish and bash installed on my system so there was some mixup with global variables and configs between the two.

I had one other problem that it causes my system RAM to overload on first run so I had to do a restart. On second start it offered to start without extensions, and without them it works correctly now.

Thank you Marco for your help.

All comments

Marco_Boeck

Hi,

I'm afraid you're still running it with a higher Java version than 8. That is the single one cause of that error.
When you type in java -version in the same shell you're starting the RapidMiner-Studio.sh with, what do you get? And what do you get when calling echo $JAVA_HOME?

Regards,
Marco

aleksandar_jovanov

Hello Marco. Thank you for your answer but that did not help me.

So I am on ubuntu 19.10 and first I tried to run RapidMiner with OpenJDK 11.

That crashed with the same XML error.

Here are the alternatives I have now.

sudo update-alternatives --config java

There are 2 choices for the alternative java (providing /usr/bin/java).

Selection    Path                                            Priority   Status
------------------------------------------------------------
0            /usr/lib/jvm/java-11-openjdk-amd64/bin/java      1111      auto mode
1            /usr/lib/jvm/java-11-openjdk-amd64/bin/java      1111      manual mode
* 2            /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java   1081      manual mode

Does this status 1081 mean anything to you?

> When you type in java -version in the same shell you're starting the RapidMiner-Studio.sh with, what do you get? And what do you get when calling echo $JAVA_HOME?

> java -version
openjdk version "1.8.0_252"
OpenJDK Runtime Environment (build 1.8.0_252-8u252-b09-1~19.10-b09)
OpenJDK 64-Bit Server VM (build 25.252-b09, mixed mode)

Thank you.

Regards,

Aleksandar Jovanov

aleksandar_jovanov

Found the problem.

In the shell it is pointing to Java 8 but inside from the script it somehow reads /usr/bin/java as Java 11.

RAPIDMINER_HOME is not set. Trying the directory '/home/aleksandar/Apps/rapidminer-studio'...
/usr/lib/jvm/java-1.11.0-openjdk-amd64//bin/java (comes from echo $JAVA I've added)

aleksandar_jovanov

Fixed it by the following

At line 49 I've added

JAVA=/usr/lib/jvm/java-8-openjdk-amd64/bin/java

And now it launches correctly.

I assume my initial issue was due to having both fish and bash installed on my system so there was some mixup with global variables and configs between the two.

Thank you Marco for your help.