CODEWITHSUNDEEP
javaclasspath
johngoche9999
johngoche9999

Reputation: 1711

CLASSPATH set but java compiler cannot find class files

I am running Ubuntu 11.10 and have installed jdk-6u30-linux-i586.bin and have a directory /usr/local/jdk1.6.0_30 and everything was working and compiling fine even without a CLASSPATH so long as I had export PATH=/usr/local/jdk1.6.0_30/bin:$PATH in my ~/.bashrc and executed java from a fresh new shell (not sure why no CLASSPATH is needed in my env).

Now I am trying to use the following class libraries: http://code.google.com/p/google-api-java-client/downloads/list google-api-java-client-1.6.0-beta.zip

I downloaded and extracted the zip file to a /usr/local/google directory which now contains all the jar files. I then try to compile the BigQuerySample from http://code.google.com/p/google-api-java-client/wiki/ClientLogin

$ javac -cp /usr/local/google BigQuerySample.java

and I get:

BigQuerySample.java:1: package com.google.api.client.googleapis does not exist import com.google.api.client.googleapis.*;

and so on for all the imported packages except for java.io.*;

I know this should be a simple classpath problem but adjusting the classpath on the command line or in the environment with export CLASSPATH=$CLASSPATH:/usr/local/google does not get rid of the errors. I have tried jar -tvf *jar for each jar file and the stuff is there, so why is the java compiler not finding the includes?

Thanks,

John Goche

Upvotes: 1

Views: 7180

Answers (4)

Qinghao
Qinghao

Reputation: 374

You may try this:

javac -Djava.ext.dirs=/usr/local/google BigQuerySample.java

Upvotes: 1

dogbane
dogbane

Reputation: 274532

You need to add the jar to your classpath like this:

javac -cp "$CLASSPATH:/usr/local/google/google-api-client-1.6.0-beta.jar" BigQuerySample.java

Or use a wildcard to add all jars:

javac -cp "$CLASSPATH:/usr/local/google/*:/usr/local/google/dependencies/*" BigQuerySample.java

Upvotes: 2

Jonathan Dixon
Jonathan Dixon

Reputation: 2336

When including jars in the classpath either specifically indicate the jars to include or use wildcards to include all jars in a directory. So for your example you could use:

javac -cp /usr/local/google/google-api.jar BigQuerySample.java

or

javac -cp /usr/local/google/* BigQuerySample.java

For more help using including jars in the classpath see this post.

Upvotes: 1

Web User
Web User

Reputation: 7736

You will have to explicitly specify all the references JARs.

javac -cp /usr/local/google/file1.jar:/usr/local/google/file2.jar:. BigQuerySample.java

Same thing while running...

java -cp /usr/local/google/file1.jar:/usr/local/google/file2.jar:. BigQuerySample

Upvotes: 1

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