Actually not I made this, but I created a project using it.

Even though the original Libra node is implemented in Rust, a gRPC interface is co-deployed, so other languages and platforms can easily use Libra through gRPC.

There are several implementations right now for accessing Libra through other languages and platforms, eg. JavaScript, Python and Go.

https://github.com/ketola added a Java implementation: jlibra

To show how to use this library, I added two projects for Spring-Boot users:

jlibra-spring-boot-starter - Spring Boot Starter project based on jlibra. java-libra-client - Java Shell for Libra based on jlibra-spring-boot-starter and jlibra.

So if you are using Java and/or Spring (Boot), these projects can help to avoid boilerplate code.

ok, its just that am trying to build with maven and am getting the error below

Scanning for projects…
Sep 01, 2019 9:23:20 AM org.sonatype.guice.bean.reflect.Logs$JULSink warn
WARNING: Error injecting: kr.motd.maven.os.DetectExtension
com.google.inject.ConfigurationException: Guice configuration errors:

Could not find a suitable constructor in kr.motd.maven.os.DetectExtension. Classes must have either one (and only one) constructor annotated with @Inject or a zero-argument constructor that is not private.
at kr.motd.maven.os.DetectExtension.class(Unknown Source)
while locating kr.motd.maven.os.DetectExtension

1 error
at com.google.inject.internal.InjectorImpl.getProvider(InjectorImpl.java:991)
at com.google.inject.internal.InjectorImpl.getProvider(InjectorImpl.java:950)
at com.google.inject.internal.InjectorImpl.getInstance(InjectorImpl.java:1000)
at org.sonatype.guice.bean.reflect.AbstractDeferredClass.get(AbstractDeferredClass.java:45)
at com.google.inject.internal.ProviderInternalFactory.provision(ProviderInternalFactory.java:84)
at com.google.inject.internal.InternalFactoryToInitializableAdapter.provision(InternalFactoryToInitializableAdapter.java:52)
at com.google.inject.internal.ProviderInternalFactory$1.call(ProviderInternalFactory.java:70)
at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:100)
at org.sonatype.guice.plexus.lifecycles.PlexusLifecycleManager.onProvision(PlexusLifecycleManager.java:138)
at com.google.inject.internal.ProvisionListenerStackCallback$Provision.provision(ProvisionListenerStackCallback.java:108)
at com.google.inject.internal.ProvisionListenerStackCallback.provision(ProvisionListenerStackCallback.java:55)
at com.google.inject.internal.ProviderInternalFactory.circularGet(ProviderInternalFactory.java:68)
at com.google.inject.internal.InternalFactoryToInitializableAdapter.get(InternalFactoryToInitializableAdapter.java:45)
at com.google.inject.internal.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:46)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1018)
at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40)
at com.google.inject.Scopes$1$1.get(Scopes.java:59)
at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:41)
at com.google.inject.internal.InjectorImpl$3$1.call(InjectorImpl.java:965)
at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1011)
at com.google.inject.internal.InjectorImpl$3.get(InjectorImpl.java:961)
at org.sonatype.guice.bean.locators.LazyBeanEntry.getValue(LazyBeanEntry.java:83)
at org.sonatype.guice.plexus.locators.LazyPlexusBean.getValue(LazyPlexusBean.java:49)
at org.sonatype.guice.bean.locators.EntryListAdapter$ValueIterator.next(EntryListAdapter.java:112)
at java.util.AbstractCollection.addAll(AbstractCollection.java:343)
at org.apache.maven.DefaultMaven.getLifecycleParticipants(DefaultMaven.java:538)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:270)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)

Internal error: com.google.inject.ProvisionException: Guice provision errors:

Could not find a suitable constructor in kr.motd.maven.os.DetectExtension. Classes must have either one (and only one) constructor annotated with @Inject or a zero-argument constructor that is not private.
at kr.motd.maven.os.DetectExtension.class(Unknown Source)
while locating kr.motd.maven.os.DetectExtension
at ClassRealm[extension>kr.motd.maven:os-maven-plugin:1.6.0, parent: sun.misc.Launcher$AppClassLoader@1f96302]
at ClassRealm[extension>kr.motd.maven:os-maven-plugin:1.6.0, parent: sun.misc.Launcher$AppClassLoader@1f96302]
while locating org.apache.maven.AbstractMavenLifecycleParticipant annotated with @com.google.inject.name.Named (value=detect-os)

1 error
-> [Help 1]
org.apache.maven.InternalErrorException: Internal error: com.google.inject.ProvisionException: Guice provision errors:

Could not find a suitable constructor in kr.motd.maven.os.DetectExtension. Classes must have either one (and only one) constructor annotated with @Inject or a zero-argument constructor that is not private.
at kr.motd.maven.os.DetectExtension.class(Unknown Source)
while locating kr.motd.maven.os.DetectExtension
at ClassRealm[extension>kr.motd.maven:os-maven-plugin:1.6.0, parent: sun.misc.Launcher$AppClassLoader@1f96302]
at ClassRealm[extension>kr.motd.maven:os-maven-plugin:1.6.0, parent: sun.misc.Launcher$AppClassLoader@1f96302]
while locating org.apache.maven.AbstractMavenLifecycleParticipant annotated with @com.google.inject.name.Named (value=detect-os)

1 error
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:168)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
Caused by: com.google.inject.ProvisionException: Guice provision errors:

Could not find a suitable constructor in kr.motd.maven.os.DetectExtension. Classes must have either one (and only one) constructor annotated with @Inject or a zero-argument constructor that is not private.
at kr.motd.maven.os.DetectExtension.class(Unknown Source)
while locating kr.motd.maven.os.DetectExtension
at ClassRealm[extension>kr.motd.maven:os-maven-plugin:1.6.0, parent: sun.misc.Launcher$AppClassLoader@1f96302]
at ClassRealm[extension>kr.motd.maven:os-maven-plugin:1.6.0, parent: sun.misc.Launcher$AppClassLoader@1f96302]
while locating org.apache.maven.AbstractMavenLifecycleParticipant annotated with @com.google.inject.name.Named (value=detect-os)

1 error
at com.google.inject.internal.InjectorImpl$3.get(InjectorImpl.java:974)
at org.sonatype.guice.bean.locators.LazyBeanEntry.getValue(LazyBeanEntry.java:83)
at org.sonatype.guice.plexus.locators.LazyPlexusBean.getValue(LazyPlexusBean.java:49)
at org.sonatype.guice.bean.locators.EntryListAdapter$ValueIterator.next(EntryListAdapter.java:112)
at java.util.AbstractCollection.addAll(AbstractCollection.java:343)
at org.apache.maven.DefaultMaven.getLifecycleParticipants(DefaultMaven.java:538)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:270)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
… 11 more

To see the full stack trace of the errors, re-run Maven with the -e switch.
Re-run Maven using the -X switch to enable full debug logging.

For more information about the errors and possible solutions, please read the following articles:
[Help 1] http://cwiki.apache.org/confluence/display/MAVEN/InternalErrorException
Java HotSpot™ Client VM warning: ignoring option PermSize=256m; support was removed in 8.0
Java HotSpot™ Client VM warning: ignoring option MaxPermSize=512m; support was removed in 8.0
‘cmd’ is not recognized as an internal or external command,
operable program or batch file.

i can’t github has refused to send verification code to my email so i can’t login
but this is the error am getting

image.png 1071×531 65.1 KB image.png 1282×382 33.9 KB

This is the error am getting, in jlibra-core, it cant find classes such as
ImmutableAccountState
ImmutableEventPath
ImmutablePaymentEvent
ImmutableSignedTransactionWithProof
i have tried importing all modules except the “jlibra-gprc”

It will be difficult if you cannot use an external Maven build to create all generated classes and then include the generated artefacts manually into your Ant build. I assume you will have to get into Maven first, but this is quite easy to do, as you just have to use Maven with already existing pom files. So the best starting point would be https://maven.apache.org/guides/getting-started/maven-in-five-minutes.html and jump to the usage notes (as you don’t have to create, but just to use Maven). Also you can search for Ant / Maven migration guides.