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raspberry Pi install failed #1

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ph1l opened this issue Oct 8, 2016 · 10 comments
Closed

raspberry Pi install failed #1

ph1l opened this issue Oct 8, 2016 · 10 comments

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@ph1l
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ph1l commented Oct 8, 2016

following instructions on https://github.com/signalk/specification/wiki/Raspberry-Pi-Installation-%28Java-Server%29, I get the following error:

pi@raspberrypi:~/signalk-java $ mvn exec:java
Warning: JAVA_HOME environment variable is not set.
[INFO] Scanning for projects...
[WARNING] 
[WARNING] Some problems were encountered while building the effective model for nz.co.fortytwo.signalk:signalk-java:pom:0.0.1-SNAPSHOT
[WARNING] 'build.plugins.plugin.version' for org.codehaus.mojo:exec-maven-plugin is missing. @ line 59, column 13
[WARNING] 
[WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
[WARNING] 
[WARNING] For this reason, future Maven versions might no longer support building such malformed projects.
[WARNING] 
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building Signalk Java 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[WARNING] The POM for com.sun.xml.bind:jaxb-core:jar:2.2.11 is invalid, transitive dependencies (if any) will not be available, enable debug logging for more details
[WARNING] The POM for com.sun.xml.bind:jaxb-impl:jar:2.2.11 is invalid, transitive dependencies (if any) will not be available, enable debug logging for more details
[INFO] 
[INFO] --- exec-maven-plugin:1.5.0:java (default-cli) @ signalk-java ---
[WARNING] 
java.lang.UnsupportedClassVersionError: nz/co/fortytwo/signalk/server/SignalKServer : Unsupported major.minor version 52.0
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:803)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
        at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:281)
        at java.lang.Thread.run(Thread.java:745)
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2:47.728s
[INFO] Finished at: Sat Oct 08 22:24:22 UTC 2016
[INFO] Final Memory: 13M/32M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.5.0:java (default-cli) on project signalk-java: An exception occured while executing the Java class. nz/co/fortytwo/signalk/server/SignalKServer : Unsupported major.minor version 52.0 -> [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
@ph1l
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ph1l commented Oct 8, 2016

with maven '-e':

pi@raspberrypi:~/signalk-java $ mvn -e exec:java
Warning: JAVA_HOME environment variable is not set.
[INFO] Error stacktraces are turned on.
[INFO] Scanning for projects...
[WARNING] 
[WARNING] Some problems were encountered while building the effective model for nz.co.fortytwo.signalk:signalk-java:pom:0.0.1-SNAPSHOT
[WARNING] 'build.plugins.plugin.version' for org.codehaus.mojo:exec-maven-plugin is missing. @ line 59, column 13
[WARNING] 
[WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
[WARNING] 
[WARNING] For this reason, future Maven versions might no longer support building such malformed projects.
[WARNING] 
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building Signalk Java 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[WARNING] The POM for com.sun.xml.bind:jaxb-core:jar:2.2.11 is invalid, transitive dependencies (if any) will not be available, enable debug logging for more details
[WARNING] The POM for com.sun.xml.bind:jaxb-impl:jar:2.2.11 is invalid, transitive dependencies (if any) will not be available, enable debug logging for more details
[INFO] 
[INFO] --- exec-maven-plugin:1.5.0:java (default-cli) @ signalk-java ---
[WARNING] 
java.lang.UnsupportedClassVersionError: nz/co/fortytwo/signalk/server/SignalKServer : Unsupported major.minor version 52.0
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:803)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
        at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:281)
        at java.lang.Thread.run(Thread.java:745)
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2:47.536s
[INFO] Finished at: Sat Oct 08 22:32:59 UTC 2016
[INFO] Final Memory: 13M/32M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.5.0:java (default-cli) on project signalk-java: An exception occured while executing the Java class. nz/co/fortytwo/signalk/server/SignalKServer : Unsupported major.minor version 52.0 -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.5.0:java (default-cli) on project signalk-java: An exception occured while executing the Java class. nz/co/fortytwo/signalk/server/SignalKServer : Unsupported major.minor version 52.0
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:217)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
        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:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        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)
Caused by: org.apache.maven.plugin.MojoExecutionException: An exception occured while executing the Java class. nz/co/fortytwo/signalk/server/SignalKServer : Unsupported major.minor version 52.0
        at org.codehaus.mojo.exec.ExecJavaMojo.execute(ExecJavaMojo.java:345)
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
        ... 19 more
Caused by: java.lang.UnsupportedClassVersionError: nz/co/fortytwo/signalk/server/SignalKServer : Unsupported major.minor version 52.0
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:803)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
        at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:281)
        at java.lang.Thread.run(Thread.java:745)
[ERROR] 
[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

@rob42
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rob42 commented Oct 9, 2016

When you see this "java.lang.UnsupportedClassVersionError" error its because the class (the project or the libraries it uses) were compiled by a version of java greater than the one you are using.
eg I compile all signalk libs with java 1.8 (aka java 8), if you try to run maven on java 1.7 this error will occur.

The version of java on RPi is Java 8 by default, but other platforms may be java 7 or less.

run java -version on the command line, and if its not 1.8 google to change it.

@ph1l
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ph1l commented Oct 9, 2016

This is a out of the box Raspian jessie-lite image.

pi@raspberrypi:~ $ java -version
java version "1.7.0_101"
OpenJDK Runtime Environment (IcedTea 2.6.6) (7u101-2.6.6-2~deb8u1+rpi1)
OpenJDK Zero VM (build 24.95-b01, interpreted mode)

Is there a preference for openjava versus Oracle Java?

@rob42
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rob42 commented Oct 9, 2016

Interesting...the current rasbian is supposed to ship with oracle (nee sun) java 8? Maybe its just not in jessie-lite? The oracle java is considerably faster that the openjdk, so its worth it too.

Try sudo update-alternatives --config java and see if the problem is just that the wrong one is chosen?
If it doesnt show then sudo apt-get install oracle-java8-jdk should install it. Run update-alterenatives again to select it

@ph1l
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ph1l commented Oct 9, 2016

It could be because I'm using the 'lite' image?

@rob42
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rob42 commented Oct 9, 2016

Once its sorted could you add a note to the install page?

@ph1l
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ph1l commented Oct 9, 2016

Sure thing :-).. It seems to run with openjdk-8-jdk package...

@ph1l
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ph1l commented Oct 9, 2016

Thanks! works. updated wiki:

https://github.com/SignalK/specification/wiki/Raspberry-Pi-Installation-%28Java-Server%29/_compare/71dbb99c2474feda7e56d5fea72e974b02b00452...fda37407df35cc191f5459ef7dbc4dcfe4c4d42f

@ph1l ph1l closed this as completed Oct 9, 2016
@tkurki
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tkurki commented Oct 9, 2016

See also SignalK/signalk-server-java#27

@rob42
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rob42 commented Oct 9, 2016

closing then

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@ph1l @tkurki @rob42