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https://issues.apache.org/jira/browse/PIG-183?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12587174#action_12587174
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Pi Song commented on PIG-183:
-----------------------------
Xu,
You compiled your class using Java 6 but your Pig runs on Java 5 JVM.
{noformat}
[EMAIL PROTECTED]:~/dump/org/apache/pig/test/udf/storefunc$ javap -verbose
StringStore
Compiled from "StringStore.java"
public class org.apache.pig.test.udf.storefunc.StringStore extends
java.lang.Object implements org.apache.pig.StoreFunc,org.apache.pig.LoadFunc
SourceFile: "StringStore.java"
minor version: 0
major version: 50 <=== This indicates Java 6
Constant pool:
{noformat}
> Pig could not resolve my udf class
> ----------------------------------
>
> Key: PIG-183
> URL: https://issues.apache.org/jira/browse/PIG-183
> Project: Pig
> Issue Type: Bug
> Reporter: Xu Zhang
> Attachments: testudf.jar
>
>
> When I ran the following Pig script with the latest Pig stuff, I got an
> exception for unresolved class. I noticed that
> org.apache.pig.test.udf.storefunc is not among the packages that Pig searches
> ([, org.apache.pig.builtin., com.yahoo.pig.yst.sds.ULT.,
> org.apache.pig.impl.builtin.]).
> I am sure that the package path for StringStore
> (org.apache.pig.test.udf.storefunc) is correct in testudf.jar. I attached
> testudf.jar here with this bug report.
> {code}
> register /path/to/my/jar/testudf.jar;
> A = load '/user/pig/tests/data/singlefile/textdoc' using
> org.apache.pig.test.udf.storefunc.StringStore();
> store A into 'results_4_1';
> {code}
> {noformat}
> 2008-04-03 13:20:25,154 [main] INFO
> org.apache.pig.backend.hadoop.executionengine.HExecutionEngine - Connecting
> to hadoop file system at: wilbur11.labs.corp.sp1.yahoo.com:8020
> 2008-04-03 13:20:25,781 [main] ERROR org.apache.pig.tools.grunt.Grunt -
> java.lang.RuntimeException: could not instantiate
> 'org.apache.pig.test.udf.storefunc.StringStore' with arguments '[]'
> at org.apache.pig.impl.PigContext.instantiateFunc(PigContext.java:504)
> at
> org.apache.pig.impl.PigContext.instantiateFuncFromSpec(PigContext.java:510)
> at
> org.apache.pig.impl.io.ValidatingInputFileSpec.getSlicer(ValidatingInputFileSpec.java:50)
> at
> org.apache.pig.impl.io.ValidatingInputFileSpec.validate(ValidatingInputFileSpec.java:42)
> at
> org.apache.pig.impl.io.ValidatingInputFileSpec.<init>(ValidatingInputFileSpec.java:37)
> at
> org.apache.pig.impl.logicalLayer.parser.QueryParser.LoadClause(QueryParser.java:795)
> at
> org.apache.pig.impl.logicalLayer.parser.QueryParser.BaseExpr(QueryParser.java:628)
> at
> org.apache.pig.impl.logicalLayer.parser.QueryParser.Expr(QueryParser.java:484)
> at
> org.apache.pig.impl.logicalLayer.parser.QueryParser.Parse(QueryParser.java:334)
> at
> org.apache.pig.impl.logicalLayer.LogicalPlanBuilder.parse(LogicalPlanBuilder.java:47)
> at org.apache.pig.PigServer.registerQuery(PigServer.java:262)
> at
> org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:446)
> at
> org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:226)
> at
> org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:62)
> at org.apache.pig.tools.grunt.Grunt.exec(Grunt.java:60)
> at org.apache.pig.Main.main(Main.java:265)
> Caused by: java.io.IOException: Could not resolve
> org.apache.pig.test.udf.storefunc.StringStore using imports: [,
> org.apache.pig.builtin., com.yahoo.pig.yst.sds.ULT.,
> org.apache.pig.impl.builtin.]
> at
> org.apache.pig.impl.util.WrappedIOException.wrap(WrappedIOException.java:16)
> at
> org.apache.pig.impl.PigContext.resolveClassName(PigContext.java:456)
> at org.apache.pig.impl.PigContext.instantiateFunc(PigContext.java:486)
> ... 15 more
> Caused by: java.lang.ClassNotFoundException: Could not resolve
> org.apache.pig.test.udf.storefunc.StringStore using imports: [,
> org.apache.pig.builtin., com.yahoo.pig.yst.sds.ULT.,
> org.apache.pig.impl.builtin.]
> at
> org.apache.pig.impl.PigContext.resolveClassName(PigContext.java:455)
> ... 16 more
> 2008-04-03 13:20:25,784 [main] ERROR org.apache.pig.tools.grunt.Grunt - could
> not instantiate 'org.apache.pig.test.udf.storefunc.StringStore' with
> arguments '[]'
> {noformat}
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