The bug is reproduced, if no exception is displayed in the text area "Test Results:" and no exception is reported in the console at the same time.ĮXPECTED - A printed out stack trace or a thrown exception to indicate to the developer where the problem lies or at least why printing cannot complete normally. Click "Run Test" button, in the shown dialog select printer and initiate printing. In the shown window of the test case select a type of an exception that should be thrown from ".print" method and select on which thread the method ".print" should be executed.ģ. Compile and run the attached to this bug test case "ExceptionFromPrintableIsIgnored.java".Ģ. STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :ġ. We will use the mach microkernel machvmremap API for this. The ZGC design makes intensive use of colored pointers, so we need a way on macOS to map multiple virtual addresses (comprising different colors in the algorithm) to the same physical memory. If the method ".print(Graphics, PageFormat, int)" throws "" or "" during the call ".print()", then the exception is swallowed by JDK and a user cannot learn that printing failed and what caused failure of printing, because "PrinterJob.print()" method does not throw "PrinterException" or the occurred exception is not reported by JDK through the error stream. The macOS implementation of ZGC consists of two parts: Support for multi-mapping memory on macOS.
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