CODEWITHSUNDEEP
javaoracle-databasejdbc
ferdyh
ferdyh

Reputation: 1445

Java ignores classpath

I'm writing a java program which uses the Oracle JDBC driver. I've set it up in my classpath. When I run the program inside my IDE (added as jdbc as library) the program runs fine. When I try to deploy it, it totaly ignores the listing in classpath and gives me a NoClassDefFoundError.

I want to use the client's JDBC driver (the one installed) and don't supply my own. I package the program from JDeveloper, deployment as JAR File.

Running with: java -jar test.jar

When I put the library in %JAVA_HOME%/lib/ext it works properly.

Anyone knows how to resolve this issue?

Upvotes: 14

Views: 6156

Answers (1)

Mike Samuel
Mike Samuel

Reputation: 120516

When you run with java -jar, the classpath is ignored.

You need to use the Class-Path manifest property.

From http://download.oracle.com/javase/tutorial/deployment/jar/downman.html

You specify classes to include in the Class-Path header field in the manifest file of an applet or application. The Class-Path header takes the following form:

Class-Path: jar1-name jar2-name directory-name/jar3-name

From http://download.oracle.com/javase/1.4.2/docs/tooldocs/linux/java.html

-jar

...

When you use this option, the JAR file is the source of all user classes, and other user class path settings are ignored.

Upvotes: 33

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