changeset 54545:3362898da451

8220743: [TESTBUG] Review Runtime tests recently migrated from JDK subdirs Summary: removed tests that will not find bugs in current code base. Reviewed-by: lfoltan, hseigel
author coleenp
date Tue, 16 Apr 2019 10:01:20 -0400
parents 97a4b8f46a49
children 460996cd27f9
files test/hotspot/jtreg/runtime/ErrorHandling/ExplicitArithmeticCheck.java test/hotspot/jtreg/runtime/Thread/MonitorCacheMaybeExpand_DeadLock.java test/hotspot/jtreg/runtime/interpreter/WideStrictInline.java
diffstat 3 files changed, 0 insertions(+), 383 deletions(-) [+]
line wrap: on
line diff
--- a/test/hotspot/jtreg/runtime/ErrorHandling/ExplicitArithmeticCheck.java	Tue Apr 16 17:56:53 2019 +0530
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,70 +0,0 @@
-/*
- * Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-/*
- * @test
- * @bug 4221448
- * @summary Use explicit check for integer arithmetic exception on win32.
- */
-
-public class ExplicitArithmeticCheck {
-    public static void main(String argv[]) throws Exception {
-        for (int i = 0; i < 64; i++) {
-          boolean result = false;
-          int n;
-          try {
-              n = 0 / 0;
-          } catch (ArithmeticException e) {
-              result = true;
-          }
-          if (result == false) {
-            throw new Error("Failed to throw correct exception!");
-          }
-          result = false;
-          try {
-              n = 0 % 0;
-          } catch (ArithmeticException e) {
-              result = true;
-          }
-          if (result == false) {
-            throw new Error("Failed to throw correct exception!");
-          }
-          try {
-              n = 0x80000000 / -1;
-          } catch (Throwable t) {
-            throw new Error("Failed to throw correct exception!");
-          }
-          if (n != 0x80000000) {
-            throw new Error("Incorrect integer arithmetic ! ");
-          }
-          try {
-              n = 0x80000000 % -1;
-          } catch (Throwable t) {
-            throw new Error("Failed to throw correct exception!");
-          }
-          if (n != 0) {
-            throw new Error("Incorrect integer arithmetic!");
-          }
-        }
-    }
-}
--- a/test/hotspot/jtreg/runtime/Thread/MonitorCacheMaybeExpand_DeadLock.java	Tue Apr 16 17:56:53 2019 +0530
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,186 +0,0 @@
-/*
- * Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-/*
- * @test
- * @bug 4087516
- * @summary Incorrect locking leads to deadlock in monitorCacheMaybeExpand.
- * @author Anand Palaniswamy
- * @build MonitorCacheMaybeExpand_DeadLock
- * @run main/othervm MonitorCacheMaybeExpand_DeadLock
- */
-
-/**
- * Background on the bug:
- *
- *     The thread local monitor cache had a locking bug (till
- *     1.2beta1) where two threads trying to expand the monitor cache
- *     at the same time would cause deadlock. The code paths that the
- *     two threads must be executing for this to happen is described
- *     in the bug report.
- *
- * Caveat and red-flag:
- *
- *     Since deadlocks are very timing dependent, there is a good
- *     chance this test case will not catch the bug most of the time
- *     -- on your machine and setting, it is _possible_ that the two
- *     threads might not try a monitorCacheExpand at the same
- *     time. But in practice, on Solaris native threads, this program
- *     deadlocks the VM in about 2 seconds pretty consistently,
- *     whether MP or not.
- *
- *     The rationale for running this test despite this rather large
- *     caveat is that at worst, it can do no harm.
- *
- * The idea:
- *
- *     Is to create two monitor hungry threads.
- *
- *     Originally Tom Rodriguez and I suspected that this weird state
- *     of two threads trying to expand monitor cache can happen only
- *     if:
- *
- *         Thread 1: Is in the middle of a monitorCacheMaybeExpand.
- *         Thread 2: Runs GC and tries to freeClasses(). This causes
- *                   sysFree() to be invoked, which in turn needs a
- *                   mutex_lock -- and oops, we end up deadlocking
- *                   with 1 on green_threads.
- *
- *     Which is why this test tries to cause class GC at regular
- *     intervals.
- *
- *     Turns out that the GC is not required. Two instances of the
- *     monitor hungry threads deadlock the VM pretty quick. :-) Infact
- *     the static initializer in the forName'd classes running
- *     alongside one of the hungry threads is sufficient to
- *     deadlock. Still keep the GC stuff just-in-case (and also
- *     because I wrote it :-).
- *
- */
-public class MonitorCacheMaybeExpand_DeadLock {
-
-    /**
-     * A monitor-hungry thread.
-     */
-    static class LotsaMonitors extends Thread {
-
-        /** How many recursions? Could cause Java stack overflow. */
-        static final int MAX_DEPTH = 800;
-
-        /** What is our depth? */
-        int depth = 0;
-
-        /** Thread ID */
-        int tid;
-
-        /** So output will have thread number. */
-        public LotsaMonitors(int tid, int depth) {
-            super("LotsaMonitors #" + new Integer(tid).toString());
-            this.tid = tid;
-            this.depth = depth;
-        }
-
-        /** Start a recursion that grabs monitors. */
-        public void run() {
-            System.out.println(">>>Starting " + this.toString() + " ...");
-            Thread.currentThread().yield();
-            this.recurse();
-            System.out.println("<<<Finished " + this.toString());
-        }
-
-        /** Every call to this method grabs an extra monitor. */
-        synchronized void recurse() {
-            if (this.depth > 0) {
-                new LotsaMonitors(tid, depth-1).recurse();
-            }
-        }
-    }
-
-    /**
-     * The test.
-     */
-    public static void main(String[] args) {
-        /* Start the two of these crazy threads. */
-        new LotsaMonitors(1, LotsaMonitors.MAX_DEPTH).start();
-        new LotsaMonitors(2, LotsaMonitors.MAX_DEPTH).start();
-
-        /* And sit there and GC for good measure. */
-        for (int i = 0; i < MAX_GC_ITERATIONS; i++) {
-            new LotsaMonitors(i+3, LotsaMonitors.MAX_DEPTH).start();
-            System.out.println(">>>Loading 10 classes and gc'ing ...");
-            Class[] classes = new Class[10];
-            fillClasses(classes);
-            classes = null;
-            System.gc();
-            Thread.currentThread().yield();
-            System.out.println("<<<Finished loading 10 classes and gc'ing");
-        }
-    }
-
-    /** How many times to GC? */
-    static final int MAX_GC_ITERATIONS = 10;
-
-    /** Load some classes into the array. */
-    static void fillClasses(Class[] classes) {
-        for (int i = 0; i < classes.length; i++) {
-            try {
-                classes[i] = Class.forName(classnames[i]);
-            } catch (ClassNotFoundException cnfe) {
-                cnfe.printStackTrace();
-            }
-        }
-    }
-
-    /** Some random classes to load. */
-    private static String[] classnames = {
-        "java.text.DecimalFormat",
-        "java.text.MessageFormat",
-        "java.util.GregorianCalendar",
-        "java.util.ResourceBundle",
-        "java.text.Collator",
-        "java.util.Date",
-        "java.io.Reader",
-        "java.io.Writer",
-        "java.lang.IllegalAccessException",
-        "java.lang.InstantiationException",
-        "java.lang.ClassNotFoundException",
-        "java.lang.CloneNotSupportedException",
-        "java.lang.InterruptedException",
-        "java.lang.NoSuchFieldException",
-        "java.lang.NoSuchMethodException",
-        "java.lang.RuntimeException",
-        "java.lang.ArithmeticException",
-        "java.lang.ArrayStoreException",
-        "java.lang.ClassCastException",
-        "java.lang.StringIndexOutOfBoundsException",
-        "java.lang.NegativeArraySizeException",
-        "java.lang.IllegalStateException",
-        "java.lang.IllegalArgumentException",
-        "java.lang.NumberFormatException",
-        "java.lang.IllegalThreadStateException",
-        "java.lang.IllegalMonitorStateException",
-        "java.lang.SecurityException",
-        "java.lang.ExceptionInInitializerError"
-    };
-
-}
--- a/test/hotspot/jtreg/runtime/interpreter/WideStrictInline.java	Tue Apr 16 17:56:53 2019 +0530
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,127 +0,0 @@
-/*
- * Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-/*
- * @test
- * @bug 4169183
- * @summary Check for correct inlining by the interpreter (widefp and strictfp).
- *          The default is widefp.  A strictfp method was getting inlined
- *          into a widefp method.
- */
-
-import java.io.PrintStream;
-
-public class WideStrictInline {
-    static PrintStream out;
-    static float halfUlp;
-
-    static {
-        halfUlp = 1;
-        for ( int i = 127 - 24; i > 0; i-- )
-            halfUlp *= 2;
-    }
-
-    public static void main(String argv[]) throws Exception {
-        out = System.err;
-        pr(-1,"halfUlp",halfUlp);
-        WideStrictInline obj = new WideStrictInline();
-        for( int i=0; i<48; i++ )
-            obj.instanceMethod( i );
-    }
-
-    private static void pr(int i, String desc, float r) {
-        out.print(" i=("+i+") "+desc+" ; == "+r);
-        out.println(" , 0x"+Integer.toHexString(Float.floatToIntBits(r)));
-    }
-
-    private static strictfp float WideStrictInline(float par) {
-        return par;
-    }
-
-    public static strictfp float strictValue(int i) {
-        float r;
-        switch (i%4) {
-        case 0: r = -Float.MAX_VALUE;  break;
-        case 1: r =  Float.MAX_VALUE;  break;
-        case 2: r =  Float.MIN_VALUE;  break;
-        default : r = 1L << 24;
-        }
-        return r;
-    }
-
-    void instanceMethod (int i) throws Exception {
-        float r;
-        switch (i%4) {
-        case 0:
-            if (!Float.isInfinite( WideStrictInline(strictValue(i)*2) +
-                                   Float.MAX_VALUE ))
-                {
-                    pr(i,
-                       "WideStrictInline(-Float.MAX_VALUE * 2) " +
-                       "!= Float.NEGATIVE_INFINITY"
-                       ,WideStrictInline(strictValue(i)*2) + Float.MAX_VALUE);
-                }
-            r = WideStrictInline(strictValue(i)*2) + Float.MAX_VALUE;
-            if ( !Float.isInfinite( r ) ) {
-                pr(i,"r != Float.NEGATIVE_INFINITY",r);
-                throw new RuntimeException();
-            }
-            break;
-        case 1:
-            if (!Float.isInfinite(WideStrictInline(strictValue(i)+halfUlp) -
-                                  Float.MAX_VALUE )) {
-                pr(i,"WideStrictInline(Float.MAX_VALUE+halfUlp) " +
-                   "!= Float.POSITIVE_INFINITY"
-                   ,WideStrictInline(strictValue(i)+halfUlp) - Float.MAX_VALUE);
-            }
-            r = WideStrictInline(strictValue(i)+halfUlp) - Float.MAX_VALUE;
-            if ( !Float.isInfinite( r ) ) {
-                pr(i,"r != Float.POSITIVE_INFINITY",r);
-                throw new RuntimeException();
-            }
-            break;
-        case 2:
-            if (WideStrictInline(strictValue(i)/2) != 0) {
-                pr(i,"WideStrictInline(Float.MIN_VALUE/2) != 0",
-                   WideStrictInline(strictValue(i)/2));
-            }
-            r = WideStrictInline(strictValue(i)/2);
-            if ( r != 0 ) {
-                pr(i,"r != 0",r);
-                throw new RuntimeException();
-            }
-            break;
-        default:
-            if (WideStrictInline(strictValue(i)-0.5f) - strictValue(i) != 0) {
-                pr(i,"WideStrictInline(2^24-0.5) != 2^24",
-                   WideStrictInline(strictValue(i)-0.5f));
-            }
-            r = WideStrictInline(strictValue(i)-0.5f);
-            if ( r - strictValue(i) != 0 ) {
-                pr(i,"r != 2^24",r);
-                throw new RuntimeException();
-            }
-        }
-    }
-
-}