Linker error: Unable to process the derived type

code: https://gerrit.onosproject.org/#/c/9249/16

Yang file:
module ospf {
namespace "urn:cisco:params:xml:ns:yang:ospf";
// replace with IANA namespace when assigned
prefix ospf;
revision 2020-10-20

{ description "Initial revision."; }

typedef type1

{ type int8; }

typedef type2 { type type1; }

typedef type3 { type int16; }

typedef type4 { type int32; }
typedef type5 { type int64; }

typedef type6 { type uint8; }

typedef type7 { type uint16; }

typedef type8 { type uint32; }

typedef type9 { type uint64; }

typedef type10 { type type1; }

typedef type11 { type int8; }

typedef type12

{ type type1; }

///* need to impelement
typedef type13

{ type decimal64; }

typedef type14

{ type binary; }

typedef type15

{ type bits; }

//*/

/*
typedef type16

{ type instance-identifier; }

typedef type17

{ type leafref; }

typedef type18

{ type identityref; }

*/

typedef type19

{ type string; }

leaf typedef1

{ type type1; }

leaf typedef2

{ type type2; }

leaf typedef3

{ type type3; }

leaf typedef4

{ type type4; }

leaf typedef5

{ type type5; }

leaf typedef6

{ type type6; }

leaf typedef7

{ type type8; }

leaf typedef9

{ type type9; }

leaf typedef10

{ type type10; }

leaf typedef11

{ type type11; }

leaf typedef12

{ type type12; }

leaf typedef13

{ type type13; }

leaf typedef14

{ type type14; }

leaf typedef15

{ type type15; }

/*
leaf typedef16

{ type type16; }

leaf typedef17

{ type type17; }

leaf typedef18

{ type type18; }

*/

leaf typedef19

{ type type19; }

}

log:
[INFO] Error in file: /home/root1/onos/utils/test/src/main/yang/typedef.yang
Linker error: Unable to process the derived type.
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.511 s
[INFO] Finished at: 2016-05-18T17:12:28+05:30
[INFO] Final Memory: 20M/383M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.onosproject:yangutils-maven-plugin:1.0.0-SNAPSHOT:yang2java (default) on project onlab-test: Exception occured due to Linker error: Unable to process the derived type. in /home/root1/onos/utils/test/src/main/yang/typedef.yang YANG file. -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.onosproject:yangutils-maven-plugin:1.0.0-SNAPSHOT:yang2java (default) on project onlab-test: Exception occured due to Linker error: Unable to process the derived type. in /home/root1/onos/utils/test/src/main/yang/typedef.yang YANG file.
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:216)
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:116)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
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:307)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:862)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:286)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:197)
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: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: Exception occured due to Linker error: Unable to process the derived type. in /home/root1/onos/utils/test/src/main/yang/typedef.yang YANG file.
at org.onosproject.yangutils.plugin.manager.YangUtilManager.execute(YangUtilManager.java:190)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
... 20 more