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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=18055 javac task includes java rt.jar in classpath when using jvc compiler Summary: javac task includes java rt.jar in classpath when using jvc compiler Product: Ant Version: 1.5.2 Platform: All OS/Version: All Status: NEW Severity: Major Priority: Other Component: Core tasks AssignedTo: [EMAIL PROTECTED] ReportedBy: [EMAIL PROTECTED] When using Microsoft's jvc compiler for the javac task, rt.jar from the Java install running Ant gets included in the compilation classpath. This is a problem since code meant to be compiled with jvc is linked against Sun class libraries which leads to compilation errors. Delving into the addJavaRuntime() method in org.apache.ant.tools.types.Path reveals the following statement intended to be called when using the jvc compiler: if (System.getProperty("java.vendor").toLowerCase(Locale.US).indexOf("microsoft") >= 0) { ... } The problem is this will never get called, as System.getProperty("java.vendor") will return the vendor of the Java install being used to run Ant. Instead, the method will (incorrectly) add the rt.jar of the Java install running Ant. This can be fixed by altering includeJavaRuntime in org.apache.tools.ant.taskdefs.compilers.JVC to always be false if no bootclasspath has been supplied.
