The value of the build.sysclasspath property control how the system classpath, ie. the classpath in effect when Ant is run, affects the behaviour of classpaths in Ant. The default behavior varies from Ant to Ant task.


The values and their meanings are:
only Only the system classpath is used and classpaths specified in build files, etc are ignored. This situation could be considered as the person running the build file knows more about the environment than the person writing the build file
ignore The system classpath is ignored. This situation is the reverse of the above. The person running the build trusts the build file writer to get the build file right
last The classpath is concatenated to any specified classpaths at the end. This is a compromise, where the build file writer has priority.
first Any specified classpaths are concatenated to the system classpath. This is the other form of compromise where the build runner has priority.

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