[Wala-wala] [Question] Could not resolve main function

[Fang Zhou]

Hi all,

I'm trying PDFSlice to generate slice for HDFS. I use WALA v1.5.2 and
compiled it successfully. Then I use the command line below trying to
generate a slice starting from class
org.apache.hadoop.hdfs.server.namenode.NameNode:
java -cp ./:/nfs/wala/WALA/com.ibm.wala.core/target/com.ibm.wala.core-1.5.2.jar:/nfs/wala/WALA/com.ibm.wala.util/target/com.ibm.wala.util-1.5.2.jar:/nfs/wala/WALA/com.ibm.wala.shrike/target/com.ibm.wala.shrike-1.5.2.jar
com.ibm.wala.examples.drivers.PDFSlice -appJar
/nfs/hadoop-3.1.2-src/hadoop-hdfs-project/hadoop-hdfs/target/hadoop-hdfs-3.1.2.jar
-mainClass Lorg/apache/hadoop/hdfs/server/namenode/NameNode -srcCallee
startMetricsLogger -srcCaller conf.getInt -dd full -cd full -dir
forward

But I got such error message:
Exception in thread "main" com.ibm.wala.util.debug.UnimplementedError:
could not resolve < Application,
Lorg/apache/hadoop/hdfs/server/namenode/NameNode,
main([Ljava/lang/String;)V >
at com.ibm.wala.util.debug.Assertions.UNREACHABLE(Assertions.java:55)
at com.ibm.wala.ipa.callgraph.Entrypoint.<init>(Entrypoint.java:58)
at com.ibm.wala.ipa.callgraph.impl.DefaultEntrypoint.<init>(DefaultEntrypoint.java:42)
at com.ibm.wala.ipa.callgraph.impl.Util$1.next(Util.java:236)
at com.ibm.wala.ipa.callgraph.impl.Util$1.next(Util.java:1)
at com.ibm.wala.ipa.callgraph.propagation.PropagationCallGraphBuilder.makeCallGraph(PropagationCallGraphBuilder.java:246)
at com.ibm.wala.examples.drivers.PDFSlice.run(PDFSlice.java:151)
at com.ibm.wala.examples.drivers.PDFSlice.run(PDFSlice.java:113)
at com.ibm.wala.examples.drivers.PDFSlice.main(PDFSlice.java:100)

I confirm org.apache.hadoop.hdfs.server.namenode.NameNode includes the
main() function. Is there anything wrong?

Thanks in advance.

Best,
Fang


_______________________________________________
Wala-wala mailing list
Wala...@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/wala-wala

[Manu Sridharan]

Is the jar file for NameNode in your analysis scope?

--

Sent from my phone. Please pardon brevity

[Fang Zhou]

Hi Manu,

How to check my analysis scope?

I know that PDFSlice will invoke
AnalysisScopeReader.makeJavaBinaryAnalysisScope(appJar, new
FileProvider()) to generate the scope. Since I have provided the right
path for the jar file, I believe the jar file has been in the scope.
The error message shows problems come from generating the call graph.
Is this error normally related to scope error?

Best,
Fang

[Manu Sridharan]

Hi Fang,

It could be a scope issue; it depends on which jar file contains Lorg/apache/hadoop/hdfs/server/namenode/NameNode.  Can you confirm that class is in the appJar you provided, and not some other jar?

Thanks,

Manu