Java 开始使用分类帐API
我正在努力完成。我很小心地按照方向走 创建乒乓java项目，用“maven”编译并运行“sandbox”在没有问题的情况下工作。然而，进入：Java 开始使用分类帐API,java,php,maven,daml,Java,Php,Maven,Daml,我正在努力完成。我很小心地按照方向走 创建乒乓java项目，用“maven”编译并运行“sandbox”在没有问题的情况下工作。然而，进入： mvn exec:java 导致以下输出： [INFO] Scanning for projects... [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Building example-ping-pong-gr
mvn exec:java
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building example-ping-pong-grpc-java 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- exec-maven-plugin:1.6.0:java (default-cli) @ example-ping-pong-grpc-java ---
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
[WARNING]
java.lang.RuntimeException: Module PingPong is not available on the ledger
at examples.pingpong.PingPongMain.detectPingPongPackageId (PingPongMain.java:194)
at examples.pingpong.PingPongMain.main (PingPongMain.java:63)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke (Method.java:564)
at org.codehaus.mojo.exec.ExecJavaMojo$1.run (ExecJavaMojo.java:282)
at java.lang.Thread.run (Thread.java:844)
[WARNING] thread Thread[grpc-default-worker-ELG-1-1,5,examples.pingpong.PingPongMain] was interrupted but is still alive after waiting at least 15000msecs
[WARNING] thread Thread[grpc-default-worker-ELG-1-1,5,examples.pingpong.PingPongMain] will linger despite being asked to die via interruption
[WARNING] thread Thread[grpc-default-executor-0,5,examples.pingpong.PingPongMain] will linger despite being asked to die via interruption
[WARNING] thread Thread[ObjectCleanerThread,1,examples.pingpong.PingPongMain] will linger despite being asked to die via interruption
[WARNING] thread Thread[grpc-default-worker-ELG-1-2,5,examples.pingpong.PingPongMain] will linger despite being asked to die via interruption
[WARNING] thread Thread[grpc-default-worker-ELG-1-3,5,examples.pingpong.PingPongMain] will linger despite being asked to die via interruption
[WARNING] thread Thread[grpc-default-worker-ELG-1-4,5,examples.pingpong.PingPongMain] will linger despite being asked to die via interruption
[WARNING] thread Thread[grpc-default-worker-ELG-1-5,5,examples.pingpong.PingPongMain] will linger despite being asked to die via interruption
[WARNING] thread Thread[grpc-default-worker-ELG-1-6,5,examples.pingpong.PingPongMain] will linger despite being asked to die via interruption
[WARNING] thread Thread[grpc-default-worker-ELG-1-7,5,examples.pingpong.PingPongMain] will linger despite being asked to die via interruption
[WARNING] NOTE: 9 thread(s) did not finish despite being asked to via interruption. This is not a problem with exec:java, it is a problem with the running code. Although not serious, it should be remedied.
[WARNING] Couldn't destroy threadgroup org.codehaus.mojo.exec.ExecJavaMojo$IsolatedThreadGroup[name=examples.pingpong.PingPongMain,maxpri=10]
java.lang.IllegalThreadStateException
at java.lang.ThreadGroup.destroy (ThreadGroup.java:776)
at org.codehaus.mojo.exec.ExecJavaMojo.execute (ExecJavaMojo.java:321)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:134)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:208)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:154)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:146)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:51)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:309)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:194)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:107)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:955)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:290)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:194)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke (Method.java:564)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:356)
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 18.860 s
[INFO] Finished at: 2019-02-25T15:45:02-05:00
[INFO] Final Memory: 12M/57M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.6.0:java (default-cli) on project example-ping-pong-grpc-java: An exception occured while executing the Java class. Module PingPong is not available on the ledger -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
Failed to load class org.slf4j.impl.StaticLoggerBinder
This warning message is reported when the org.slf4j.impl.StaticLoggerBinder class could not be loaded into memory. This happens when no appropriate SLF4J binding could be found on the class path. Placing one (and only one) of slf4j-nop.jar slf4j-simple.jar, slf4j-log4j12.jar, slf4j-jdk14.jar or logback-classic.jar on the class path should solve the problem.
SINCE 1.6.0 As of SLF4J version 1.6, in the absence of a binding, SLF4J will default to a no-operation (NOP) logger implementation.
If you are responsible for packaging an application and do not care about logging, then placing slf4j-nop.jar on the class path of your application will get rid of this warning message. Note that embedded components such as libraries or frameworks should not declare a dependency on any SLF4J binding but only depend on slf4j-api. When a library declares a compile-time dependency on a SLF4J binding, it imposes that binding on the end-user, thus negating SLF4J's purpose.
我不知道该怎么看待这一切。我只想通过本教程了解API分类账。我对java或maven没有经验，我也不打算学习它们，因为我的账本应用程序需要用PHP编写。我需要做什么来避免这个错误 我认为红色堆栈跟踪有点像是在转移视线，重要的消息是从
examples.pingpong.PingPongMain.detectPingPongPackageId（PingPongMain.java:194）da.yamlproject:
sdk-version: 0.11.3
name: PingPongExample
source: daml/PingPong.daml
parties:
- Alice
- Bob
version: 2
paul:ping-pong-java$ da sandbox
[Info] Starting:
Sandbox ledger server /Users/paul/dev/ping-pong-java/daml/PingPong.daml
with no scenario and binding to port 7600
2019-02-26 14:14:50.09 [DEBUG] [package] [] [DA.Service.Daml.Compiler.Impl.Handle:245]
Creating dar: /Users/paul/dev/ping-pong-java/daml/PingPong.daml
2019-02-26 14:14:50.09 [DEBUG] [package] [] [DA.Service.Daml.Compiler.Impl.Handle:171]
Setting files of interest to: [AbsoluteFilePath {getRawFilePath = "/Users/paul/dev/ping-pong-java/daml/PingPong.daml"}]
2019-02-26 14:14:50.09 [INFO] [package] []
Starting shakeRun (aborting the previous one took 0.00s)
2019-02-26 14:14:50.09 [DEBUG] [package] [] [DA.Service.Daml.Compiler.Impl.Handle:217]
Compiling: /Users/paul/dev/ping-pong-java/daml/PingPong.daml
2019-02-26 14:14:50.09 [INFO] [package] []
Finishing shakeRun (took 0.00s, exception)
2019-02-26 14:14:50.09 [INFO] [package] []
Starting shakeRun (aborting the previous one took 0.00s)
2019-02-26 14:14:51.17 [INFO] [package] []
Finishing shakeRun (took 1.08s, completed)
2019-02-26 14:14:51.17 [INFO] [package] []
Starting shakeRun (aborting the previous one took 0.00s)
2019-02-26 14:14:51.17 [INFO] [package] []
Finishing shakeRun (took 0.00s, completed)
Created /Users/paul/dev/ping-pong-java/target/PingPongExample.dar.
Created /Users/paul/dev/ping-pong-java/target/ghc-prim.dalf.
Waiting for Sandbox.......ok
我假设您正在运行最新版本的SDK（0.11.3）。如果您没有，请升级。看看这是否能帮助您
mvn exec:java-Dexec.cleanupDaemonThreads=false