45 import jdk.testlibrary.ProcessTools; 46 import sun.tools.attach.HotSpotVirtualMachine; 47 48 public class CheckOrigin { 49 50 private static HotSpotDiagnosticMXBean mbean; 51 52 public static void main(String... args) throws Exception { 53 if (args.length == 0) { 54 // start a process that has options set in a number of different ways 55 56 File flagsFile = File.createTempFile("CheckOriginFlags", null); 57 try (PrintWriter pw = 58 new PrintWriter(new FileWriter(flagsFile))) { 59 pw.println("+PrintSafepointStatistics"); 60 } 61 62 ProcessBuilder pb = ProcessTools. 63 createJavaProcessBuilder( 64 "-XX:+UseConcMarkSweepGC", // this will cause UseParNewGC to be FLAG_SET_ERGO 65 "-XX:+PrintGCDetails", 66 "-XX:+UseCerealGC", // Should be ignored. 67 "-XX:Flags=" + flagsFile.getAbsolutePath(), 68 "-cp", System.getProperty("test.class.path"), 69 "CheckOrigin", 70 "-runtests"); 71 72 Map<String, String> env = pb.environment(); 73 // "UseCMSGC" should be ignored. 74 env.put("_JAVA_OPTIONS", "-XX:+TraceExceptions -XX:+UseCMSGC"); 75 // "UseGOneGC" should be ignored. 76 env.put("JAVA_TOOL_OPTIONS", "-XX:+IgnoreUnrecognizedVMOptions " 77 + "-XX:+PrintVMOptions -XX:+UseGOneGC"); 78 79 pb.redirectOutput(ProcessBuilder.Redirect.INHERIT); 80 pb.redirectError(ProcessBuilder.Redirect.INHERIT); 81 Process p = pb.start(); 82 int exit = p.waitFor(); 83 System.out.println("sub process exit == " + exit); 84 if (exit != 0) { 85 throw new Exception("Unexpected exit code from subprocess == " + exit); 86 } 87 } else { 88 mbean = 89 ManagementFactory.getPlatformMXBean(HotSpotDiagnosticMXBean.class); 90 91 // set a few more options 92 mbean.setVMOption("HeapDumpOnOutOfMemoryError", "true"); 93 setOptionUsingAttach("HeapDumpPath", "/a/sample/path"); 94 95 // check the origin field for all the options we set 96 97 // Not set, so should be default 98 checkOrigin("ManagementServer", Origin.DEFAULT); 99 // Set on the command line 100 checkOrigin("PrintGCDetails", Origin.VM_CREATION); 101 // Set in _JAVA_OPTIONS 102 checkOrigin("TraceExceptions", Origin.ENVIRON_VAR); 103 // Set in JAVA_TOOL_OPTIONS 104 checkOrigin("IgnoreUnrecognizedVMOptions", Origin.ENVIRON_VAR); 105 checkOrigin("PrintVMOptions", Origin.ENVIRON_VAR); 106 // Set in -XX:Flags file 107 checkOrigin("PrintSafepointStatistics", Origin.CONFIG_FILE); 108 // Set through j.l.m 109 checkOrigin("HeapDumpOnOutOfMemoryError", Origin.MANAGEMENT); 110 // Should be set by the VM, when we set UseConcMarkSweepGC 111 checkOrigin("UseParNewGC", Origin.ERGONOMIC); 112 // Set using attach 113 checkOrigin("HeapDumpPath", Origin.ATTACH_ON_DEMAND); 114 } 115 } 116 117 private static void checkOrigin(String option, Origin origin) throws Exception 118 { 119 Origin o = mbean.getVMOption(option).getOrigin(); 120 if (!o.equals(origin)) { | 45 import jdk.testlibrary.ProcessTools; 46 import sun.tools.attach.HotSpotVirtualMachine; 47 48 public class CheckOrigin { 49 50 private static HotSpotDiagnosticMXBean mbean; 51 52 public static void main(String... args) throws Exception { 53 if (args.length == 0) { 54 // start a process that has options set in a number of different ways 55 56 File flagsFile = File.createTempFile("CheckOriginFlags", null); 57 try (PrintWriter pw = 58 new PrintWriter(new FileWriter(flagsFile))) { 59 pw.println("+PrintSafepointStatistics"); 60 } 61 62 ProcessBuilder pb = ProcessTools. 63 createJavaProcessBuilder( 64 "-XX:+UseConcMarkSweepGC", // this will cause UseParNewGC to be FLAG_SET_ERGO 65 "-XX:+UseCodeAging", 66 "-XX:+UseCerealGC", // Should be ignored. 67 "-XX:Flags=" + flagsFile.getAbsolutePath(), 68 "-cp", System.getProperty("test.class.path"), 69 "CheckOrigin", 70 "-runtests"); 71 72 Map<String, String> env = pb.environment(); 73 // "UseCMSGC" should be ignored. 74 env.put("_JAVA_OPTIONS", "-XX:+TraceExceptions -XX:+UseCMSGC"); 75 // "UseGOneGC" should be ignored. 76 env.put("JAVA_TOOL_OPTIONS", "-XX:+IgnoreUnrecognizedVMOptions " 77 + "-XX:+PrintVMOptions -XX:+UseGOneGC"); 78 79 pb.redirectOutput(ProcessBuilder.Redirect.INHERIT); 80 pb.redirectError(ProcessBuilder.Redirect.INHERIT); 81 Process p = pb.start(); 82 int exit = p.waitFor(); 83 System.out.println("sub process exit == " + exit); 84 if (exit != 0) { 85 throw new Exception("Unexpected exit code from subprocess == " + exit); 86 } 87 } else { 88 mbean = 89 ManagementFactory.getPlatformMXBean(HotSpotDiagnosticMXBean.class); 90 91 // set a few more options 92 mbean.setVMOption("HeapDumpOnOutOfMemoryError", "true"); 93 setOptionUsingAttach("HeapDumpPath", "/a/sample/path"); 94 95 // check the origin field for all the options we set 96 97 // Not set, so should be default 98 checkOrigin("ManagementServer", Origin.DEFAULT); 99 // Set on the command line 100 checkOrigin("UseCodeAging", Origin.VM_CREATION); 101 // Set in _JAVA_OPTIONS 102 checkOrigin("TraceExceptions", Origin.ENVIRON_VAR); 103 // Set in JAVA_TOOL_OPTIONS 104 checkOrigin("IgnoreUnrecognizedVMOptions", Origin.ENVIRON_VAR); 105 checkOrigin("PrintVMOptions", Origin.ENVIRON_VAR); 106 // Set in -XX:Flags file 107 checkOrigin("PrintSafepointStatistics", Origin.CONFIG_FILE); 108 // Set through j.l.m 109 checkOrigin("HeapDumpOnOutOfMemoryError", Origin.MANAGEMENT); 110 // Should be set by the VM, when we set UseConcMarkSweepGC 111 checkOrigin("UseParNewGC", Origin.ERGONOMIC); 112 // Set using attach 113 checkOrigin("HeapDumpPath", Origin.ATTACH_ON_DEMAND); 114 } 115 } 116 117 private static void checkOrigin(String option, Origin origin) throws Exception 118 { 119 Origin o = mbean.getVMOption(option).getOrigin(); 120 if (!o.equals(origin)) { |