/guava/guava/src/com/google/common/base/Preconditions.java
if ( !expression) {   throw new IllegalArgumentException( lenientFormat( errorMessageTemplate, errorMessageArgs) ) ; }
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boolean expression, String errorMessageTemplate, @CheckForNull Object p1, @CheckForNull Object p2, @CheckForNull Object p3) { if (!expression) { <extra_id_0> } } public static void checkArgument( boolean expression, String errorMessageTemplate, @CheckForNull Object p1,