OTP in Windows with Java 16

[Alain L'Hostis]

Hi all,

I get an error in Windows with java 16, just when it should write the 'graph.obj' file. end of the log below.

My command line is

java -Xmx3G -jar otp-1.5.0-shaded.jar -- build

Should I come back to Java 8?

15:06:49.489 INFO (Graph.java:815) Writing graph D:\Desktop\otp\graphs\PACA\Graph.obj ...

Exception in thread "main" java.lang.ExceptionInInitializerError

        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:78)

        at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)

        at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499)

        at java.base/java.lang.reflect.ReflectAccess.newInstance(ReflectAccess.java:128)

        at java.base/jdk.internal.reflect.ReflectionFactory.newInstance(ReflectionFactory.java:350)

        at java.base/java.lang.Class.newInstance(Class.java:642)

        at com.esotericsoftware.kryo.factories.ReflectionSerializerFactory.makeSerializer(ReflectionSerializerFactory.java:59)

        at com.esotericsoftware.kryo.factories.ReflectionSerializerFactory.makeSerializer(ReflectionSerializerFactory.java:43)

        at com.esotericsoftware.kryo.Kryo.getDefaultSerializer(Kryo.java:375)

        at com.esotericsoftware.kryo.util.DefaultClassResolver.registerImplicit(DefaultClassResolver.java:74)

        at com.esotericsoftware.kryo.Kryo.getRegistration(Kryo.java:508)

        at com.esotericsoftware.kryo.util.DefaultClassResolver.writeClass(DefaultClassResolver.java:97)

        at com.esotericsoftware.kryo.Kryo.writeClass(Kryo.java:540)

        at com.esotericsoftware.kryo.Kryo.writeClassAndObject(Kryo.java:645)

        at com.esotericsoftware.kryo.serializers.MapSerializer.write(MapSerializer.java:113)

        at com.esotericsoftware.kryo.serializers.MapSerializer.write(MapSerializer.java:39)

        at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:575)

        at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:79)

        at com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:508)

        at com.esotericsoftware.kryo.Kryo.writeClassAndObject(Kryo.java:651)

        at com.esotericsoftware.kryo.serializers.MapSerializer.write(MapSerializer.java:113)

        at com.esotericsoftware.kryo.serializers.MapSerializer.write(MapSerializer.java:39)

        at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:575)

        at com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:79)

        at com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:508)

        at com.esotericsoftware.kryo.Kryo.writeClassAndObject(Kryo.java:651)

        at org.opentripplanner.routing.graph.Graph.save(Graph.java:840)

        at org.opentripplanner.routing.graph.Graph.save(Graph.java:817)

        at org.opentripplanner.graph_builder.GraphBuilder.run(GraphBuilder.java:144)

        at org.opentripplanner.standalone.OTPMain.run(OTPMain.java:103)

        at org.opentripplanner.standalone.OTPMain.main(OTPMain.java:73)

Caused by: java.lang.RuntimeException: Could not access source collection field in java.util.Collections$UnmodifiableCollection.

        at de.javakaffee.kryoserializers.UnmodifiableCollectionsSerializer.<clinit>(UnmodifiableCollectionsSerializer.java:62)

        ... 32 more

Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make field final java.util.Collection java.util.Collections$UnmodifiableCollection.c accessible: module java.base does not "opens java.util" to unnamed module @8e24743

        at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:357)

        at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297)

        at java.base/java.lang.reflect.Field.checkCanSetAccessible(Field.java:177)

        at java.base/java.lang.reflect.Field.setAccessible(Field.java:171)

        at de.javakaffee.kryoserializers.UnmodifiableCollectionsSerializer.<clinit>(UnmodifiableCollectionsSerializer.java:55)

        ... 32 more

D:\Desktop\otp>cd Desktop

[Leonard Ehrenfried]

The only version that OTP is tested with is Java 11. You should use that.

--

  Leonard Ehrenfried

  ma...@leonard.io - https://leonard.io - @lehrenfried:matrix.org

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[Andrew Byrd]

Actually, if I’m not mistaken the 2.x branches of OTP are using Java 11, but the 1.x branches are still targeting Java 1.8. At least a quick look at the POM shows source and target version 1.8.

https://github.com/opentripplanner/OpenTripPlanner/blob/dev-1.x/pom.xml#L178

-Andrew

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[Leonard Ehrenfried]

Andrew is of course right.

OTP1 is using Java 8

OTP2 is using Java 11

--

  Leonard Ehrenfried

[Alain L'Hostis]

thanks for the indications, once I installed java 8 it works

[Youssra El Moussaoui]

Hello,

Here is the error message that appears

Youssra El Moussaoui

[Andrew Byrd]

Hi,

It looks like you may be including the dollar sign ($) in your command. In the OTP documentation, that symbol is just representing a command prompt for a regular user (as opposed to superuser), indicating that what follows should be entered on the command line. In your case it looks like the equivalent command prompt is >. You only need to type the following part starting with ‘java’, not the prompt character.

However, note that as mentioned in the previous message in the chain, OTP1 is only tested on Java 8, and OTP2 is only tested on Java 11.

-Andrew

On 6 Jul 2021, at 19:56, Youssra El Moussaoui <yous...@live.fr> wrote:

Hello,

Here is the error message that appears

Youssra El Moussaoui<otp.png>

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<otp.png>

[Youssra El Moussaoui]

Thank you for your answer,

I tried again but it looks like I can't access to my JAR file. Is it because of java's version

Have a nice day,

Youssra El Moussaoui

[Alain L'Hostis]

Youssra,

be careful you must be located in the otp folder, apparently you type the command line from \Desktop