Examples with DataUnavailable com.ibm.dtfj.image.DataUnavailable used on opensource projects

Example 36 with DataUnavailable

use of com.ibm.dtfj.image.DataUnavailable in project openj9 by eclipse.

the class J9DDRDTFJUtils method handleAsDataUnavailable.

/**
 * Handle the supplied error condition and ultimately surface it as a
 * data unavailable exception. This is required as not all API calls
 * allow a CorruptDataException to be thrown
 *
 * @param t error condition to handle
 * @throws CorruptDataException ultimately throw an CDE
 */
public static DataUnavailable handleAsDataUnavailable(Throwable t) {
    if (t instanceof DataUnavailable) {
        // prevent repeated logging of this error by ignoring DTFJ DataUnavailable
        return (DataUnavailable) t;
    }
    if (isErrorNotToBeIntercepted(t)) {
        if (t instanceof Error) {
            // rethrow unhandled errors
            throw (Error) t;
        }
        // should not hit this as we handle run time exceptions
        throw new RuntimeException(t);
    }
    if (t instanceof DataUnavailable) {
        logger.log(Level.FINE, "Data unavailable", t);
        // 
        return (DataUnavailable) t;
    }
    String message = logError(t);
    DataUnavailable du = new DataUnavailable(message);
    du.initCause(t);
    return du;
}

Example 37 with DataUnavailable

use of com.ibm.dtfj.image.DataUnavailable in project openj9 by eclipse.

the class DTFJJavaObject method addFieldReferences.

private void addFieldReferences(JavaClass jClass, int referentReachabilityType) throws CorruptDataException, MemoryAccessException {
    Iterator<?> fieldIt = jClass.getDeclaredFields();
    while (fieldIt.hasNext()) {
        Object fieldObj = fieldIt.next();
        if (fieldObj instanceof JavaField) {
            JavaField thisField = (JavaField) fieldObj;
            if ((thisField.getModifiers() & Modifier.STATIC) == 0) {
                String signature = thisField.getSignature();
                // From a reference point of view, only objects are interesting
                if (signature.startsWith("L") || signature.startsWith("[")) {
                    Object targetObj = thisField.get(this);
                    if (targetObj == null) {
                        continue;
                    }
                    if (targetObj instanceof JavaObject) {
                        String fieldName = thisField.getName();
                        String declaringClassName = null;
                        try {
                            declaringClassName = thisField.getDeclaringClass().getName();
                        } catch (DataUnavailable e) {
                        // declaringClassName will be null, we will add this as a strong ref.
                        }
                        String description = "Object Reference [field name:" + fieldName + "]";
                        // (Not any referent field declared in subclasses.)
                        if (fieldName.equals("referent") && "java/lang/ref/Reference".equals(declaringClassName)) {
                            references.add(new DTFJJavaReference(this, targetObj, description, JavaReference.REFERENCE_FIELD, JavaReference.HEAP_ROOT_UNKNOWN, referentReachabilityType));
                        } else {
                            references.add(new DTFJJavaReference(this, targetObj, description, JavaReference.REFERENCE_FIELD, JavaReference.HEAP_ROOT_UNKNOWN, JavaReference.REACHABILITY_STRONG));
                        }
                    } else if (targetObj instanceof CorruptData) {
                        references.add(targetObj);
                    } else {
                        references.add(J9DDRDTFJUtils.newCorruptData(DTFJContext.getProcess(), "Unexpected type from field get: " + targetObj + ", class=" + targetObj.getClass().getName()));
                    }
                }
            }
        } else if (fieldObj instanceof CorruptData) {
            references.add(fieldObj);
        } else {
            references.add(J9DDRDTFJUtils.newCorruptData(DTFJContext.getProcess(), "Unexpected type from field iteration: " + fieldObj + ", class=" + fieldObj.getClass().getName()));
        }
    }
}

Example 38 with DataUnavailable

use of com.ibm.dtfj.image.DataUnavailable in project openj9 by eclipse.

the class ImageComparator method testEquals.

/* (non-Javadoc)
	 * @see com.ibm.j9ddr.view.dtfj.test.DTFJComparator#testEquals(java.lang.Object, java.lang.Object, int)
	 */
@Override
public void testEquals(Object ddrObject, Object jextractObject, int members) {
    Image ddrImg = (Image) ddrObject;
    Image jextractImg = (Image) jextractObject;
    if ((members & ADDRESS_SPACES) != 0) {
        new ImageAddressSpaceComparator().testComparatorIteratorEquals(ddrImg.getAddressSpaces(), jextractImg.getAddressSpaces(), "getAddressSpaces", ImageAddressSpace.class);
    }
    if ((members & CREATION_TIME) != 0) {
        long ddrCreationTime = -1;
        long jextractCreationTime = -1;
        Exception ddrException = null;
        Exception jextractException = null;
        try {
            ddrCreationTime = ddrImg.getCreationTime();
        } catch (DataUnavailable e) {
            e.printStackTrace();
            ddrException = e;
        }
        try {
            jextractCreationTime = jextractImg.getCreationTime();
        } catch (DataUnavailable e) {
            e.printStackTrace();
            jextractException = e;
        }
        if (ddrException == null && jextractException == null) {
            assertEquals(jextractCreationTime, ddrCreationTime);
        } else if (ddrException != null && jextractException != null) {
            assertEquals(jextractException.getClass(), ddrException.getClass());
        } else {
            if (ddrException != null) {
                fail("DDR threw an exception, and jextract didn't");
            } else {
                fail("jextract threw an exception, and ddr didn't");
            }
        }
    }
    if ((members & HOST_NAME) != 0) {
        String ddrHostname = null;
        String jextractHostname = null;
        Exception ddrException = null;
        Exception jextractException = null;
        try {
            ddrHostname = ddrImg.getHostName();
        } catch (Exception e) {
            e.printStackTrace();
            ddrException = e;
        }
        try {
            jextractHostname = jextractImg.getHostName();
        } catch (Exception e) {
            e.printStackTrace();
            jextractException = e;
        }
        if (ddrException == null && jextractException == null) {
            assertEquals(jextractHostname, ddrHostname);
        } else if (ddrException != null && jextractException != null) {
            assertEquals(jextractException.getClass(), ddrException.getClass());
        } else {
            if (ddrException != null) {
                fail("DDR threw an exception, and jextract didn't");
            } else {
                fail("jextract threw an exception, and ddr didn't");
            }
        }
    }
    if ((members & INSTALLED_MEMORY) != 0) {
        long ddrInstalledMemory = -1;
        long jextractInstalledMemory = -1;
        Exception ddrException = null;
        Exception jextractException = null;
        try {
            ddrInstalledMemory = ddrImg.getInstalledMemory();
        } catch (DataUnavailable e) {
            e.printStackTrace();
            ddrException = e;
        }
        try {
            jextractInstalledMemory = jextractImg.getInstalledMemory();
        } catch (DataUnavailable e) {
            e.printStackTrace();
            jextractException = e;
        }
        if (ddrException == null && jextractException == null) {
            assertEquals(jextractInstalledMemory, ddrInstalledMemory);
        } else if (ddrException != null && jextractException != null) {
            assertEquals(jextractException.getClass(), ddrException.getClass());
        } else {
            if (ddrException != null) {
                fail("DDR threw an exception, and jextract didn't");
            } else {
                fail("jextract threw an exception, and ddr didn't");
            }
        }
    }
    if ((members & IP_ADDRESSES) != 0) {
        Iterator<?> ddrIt = null;
        Iterator<?> jextractIt = null;
        Exception ddrException = null;
        Exception jextractException = null;
        try {
            ddrIt = ddrImg.getIPAddresses();
        } catch (Exception e) {
            e.printStackTrace();
            ddrException = e;
        }
        try {
            jextractIt = jextractImg.getIPAddresses();
        } catch (Exception e) {
            e.printStackTrace();
            jextractException = e;
        }
        if (ddrException == null && jextractException == null) {
            // Slurp iterators into lists, sort lists, compare contents
            List<?> ddrList = slurpIterator(ddrIt);
            List<?> jextractList = slurpIterator(jextractIt);
            assertEquals("IP address lists different lengths", jextractList.size(), ddrList.size());
            Comparator<Object> inetAddressComp = new Comparator<Object>() {

                public int compare(Object o1, Object o2) {
                    InetAddress i1 = (InetAddress) o1;
                    InetAddress i2 = (InetAddress) o2;
                    return i1.getHostAddress().compareTo(i2.getHostAddress());
                }
            };
            Collections.sort(ddrList, inetAddressComp);
            Collections.sort(jextractList, inetAddressComp);
            assertEquals(jextractList, ddrList);
        } else if (ddrException != null && jextractException != null) {
            assertEquals(jextractException.getClass(), ddrException.getClass());
        } else {
            if (ddrException != null) {
                fail("DDR threw an exception, and jextract didn't");
            } else {
                fail("jextract threw an exception, and ddr didn't");
            }
        }
    }
    if ((members & PROCESSOR_COUNT) != 0) {
        int ddrProcessorCount = -1;
        int jextractProcessorCount = -1;
        Exception ddrException = null;
        Exception jextractException = null;
        try {
            ddrProcessorCount = ddrImg.getProcessorCount();
        } catch (DataUnavailable e) {
            e.printStackTrace();
            ddrException = e;
        }
        try {
            jextractProcessorCount = jextractImg.getProcessorCount();
        } catch (DataUnavailable e) {
            e.printStackTrace();
            jextractException = e;
        }
        if (ddrException == null && jextractException == null) {
            assertEquals(jextractProcessorCount, ddrProcessorCount);
        } else if (ddrException != null && jextractException != null) {
            assertEquals(jextractException.getClass(), ddrException.getClass());
        } else {
            if (ddrException != null) {
                fail("DDR threw an exception, and jextract didn't");
            } else {
                fail("jextract threw an exception, and ddr didn't");
            }
        }
    }
    if ((members & PROCESSOR_SUB_TYPE) != 0) {
        String ddrSubType = null;
        String jextractSubType = null;
        Exception ddrException = null;
        Exception jextractException = null;
        try {
            ddrSubType = ddrImg.getProcessorSubType();
        } catch (Exception e) {
            e.printStackTrace();
            ddrException = e;
        }
        try {
            jextractSubType = jextractImg.getProcessorSubType();
        } catch (Exception e) {
            e.printStackTrace();
            jextractException = e;
        }
        if (ddrException == null && jextractException == null) {
            assertEquals(jextractSubType, ddrSubType);
        } else if (ddrException != null && jextractException != null) {
            assertEquals(jextractException.getClass(), ddrException.getClass());
        } else {
            if (ddrException != null) {
                fail("DDR threw an exception, and jextract didn't");
            } else {
                fail("jextract threw an exception, and ddr didn't");
            }
        }
    }
    if ((members & PROCESSOR_TYPE) != 0) {
        String ddrType = null;
        String jextractType = null;
        Exception ddrException = null;
        Exception jextractException = null;
        try {
            ddrType = ddrImg.getProcessorType();
        } catch (Exception e) {
            e.printStackTrace();
            ddrException = e;
        }
        try {
            jextractType = jextractImg.getProcessorType();
        } catch (Exception e) {
            e.printStackTrace();
            jextractException = e;
        }
        if (ddrException == null && jextractException == null) {
            assertEquals(jextractType, ddrType);
        } else if (ddrException != null && jextractException != null) {
            assertEquals(jextractException.getClass(), ddrException.getClass());
        } else {
            if (ddrException != null) {
                fail("DDR threw an exception, and jextract didn't");
            } else {
                fail("jextract threw an exception, and ddr didn't");
            }
        }
    }
    if ((members & SYSTEM_TYPE) != 0) {
        String ddrType = null;
        String jextractType = null;
        Exception ddrException = null;
        Exception jextractException = null;
        try {
            ddrType = ddrImg.getSystemType();
        } catch (Exception e) {
            e.printStackTrace();
            ddrException = e;
        }
        try {
            jextractType = jextractImg.getSystemType();
        } catch (Exception e) {
            e.printStackTrace();
            jextractException = e;
        }
        if (ddrException == null && jextractException == null) {
            assertEquals(jextractType, ddrType);
        } else if (ddrException != null && jextractException != null) {
            assertEquals(jextractException.getClass(), ddrException.getClass());
        } else {
            if (ddrException != null) {
                fail("DDR threw an exception, and jextract didn't");
            } else {
                fail("jextract threw an exception, and ddr didn't");
            }
        }
    }
    if ((members & SYSTEM_SUB_TYPE) != 0) {
        String ddrType = null;
        String jextractType = null;
        Exception ddrException = null;
        Exception jextractException = null;
        try {
            ddrType = ddrImg.getSystemSubType();
        } catch (Exception e) {
            e.printStackTrace();
            ddrException = e;
        }
        try {
            jextractType = jextractImg.getSystemSubType();
        } catch (Exception e) {
            e.printStackTrace();
            jextractException = e;
        }
        if (ddrException == null && jextractException == null) {
            assertEquals(jextractType, ddrType);
        } else if (ddrException != null && jextractException != null) {
            assertEquals(jextractException.getClass(), ddrException.getClass());
        } else {
            if (ddrException != null) {
                fail("DDR threw an exception, and jextract didn't");
            } else {
                fail("jextract threw an exception, and ddr didn't");
            }
        }
    }
}

Example 39 with DataUnavailable

use of com.ibm.dtfj.image.DataUnavailable in project openj9 by eclipse.

the class JavaRuntimeTest method getHeapRootsTest.

@SuppressWarnings("unchecked")
@Test
public void getHeapRootsTest() {
    boolean result = true;
    String version = ((J9DDRImageProcess) ddrProcess).getVersion();
    IteratorFilter ddrFilter = null;
    if (version.equals("26")) {
        ddrFilter = new IteratorFilter() {

            // vm26 has a StringTable Cache that the root scanner scans but jextract(HeapIteratorAPI) does not
            public boolean accept(Object obj) {
                JavaReference ref = (JavaReference) obj;
                if (ref.getDescription().equals("StringCacheTable")) {
                    return false;
                }
                return true;
            }
        };
    }
    if (version.equals("23")) {
        ddrFilter = new IteratorFilter() {

            boolean foundFirstContrivedThread = false;

            public boolean accept(Object obj) {
                try {
                    JavaReference ref = (JavaReference) obj;
                    Object ddrHeapRoot = ref.getTarget();
                    if (ref.getRootType() == JavaReference.HEAP_ROOT_THREAD) {
                        if (ddrHeapRoot instanceof JavaObject) {
                            JavaObject javaObject = (JavaObject) ddrHeapRoot;
                            String name = javaObject.getJavaClass().getName();
                            if (name.endsWith("Error") || name.endsWith("Exception") || name.equals("com/ibm/dtfj/tck/tests/javaruntime/TestJavaMonitor_ObjectMonitors$MonitorClass") || name.equals("com/ibm/dtfj/tck/harness/Configure$DumpThread")) {
                                // Ignore these since JExtract can't find them.
                                return false;
                            }
                            if (name.equals("com/ibm/dtfj/tck/tests/javaruntime/TestJavaThread_getStackFrames$ContrivedThread")) {
                                if (foundFirstContrivedThread) {
                                    return false;
                                } else {
                                    foundFirstContrivedThread = true;
                                }
                            }
                        }
                    }
                    return true;
                } catch (DataUnavailable e) {
                    fail("bail");
                    return false;
                } catch (CorruptDataException e) {
                    fail("bail");
                    return false;
                }
            }
        };
    }
    for (int i = 0; i < ddrTestObjects.size(); i++) {
        JavaRuntime localDDRRuntime = (JavaRuntime) ddrTestObjects.get(i);
        JavaRuntime localJextractRuntime = (JavaRuntime) jextractTestObjects.get(i);
        Object[] ddrHeapRootsArray = null;
        Object[] jextractHeapRootsArray = null;
        int threadCount = 0;
        Iterator titer = localDDRRuntime.getThreads();
        while (titer.hasNext()) {
            threadCount++;
            titer.next();
        }
        System.out.println("Thread count: " + threadCount);
        try {
            ddrHeapRootsArray = DTFJComparator.getList(Object.class, localDDRRuntime.getHeapRoots(), ddrFilter).toArray();
            jextractHeapRootsArray = DTFJComparator.getList(Object.class, localJextractRuntime.getHeapRoots(), null).toArray();
        } catch (InvalidObjectException e1) {
            fail("Test setup failure");
        }
        Map<Long, List<Object>> map = new HashMap<Long, List<Object>>();
        for (int j = 0; j < ddrHeapRootsArray.length; j++) {
            long key = 0;
            JavaReference ref = (JavaReference) ddrHeapRootsArray[j];
            Object ddrHeapRoot = null;
            try {
                ddrHeapRoot = ref.getTarget();
            } catch (DataUnavailable e) {
                fail("bail");
            } catch (CorruptDataException e) {
                fail("bail");
            }
            if (ddrHeapRoot instanceof JavaObject) {
                key = ((JavaObject) ddrHeapRoot).getID().getAddress();
            } else if (ddrHeapRoot instanceof JavaClass) {
                key = ((JavaClass) ddrHeapRoot).getID().getAddress();
            } else {
                fail("bail");
            }
            List bucket = map.get(key);
            if (bucket == null) {
                bucket = new ArrayList<Object>();
                map.put(key, bucket);
            }
            bucket.add(ddrHeapRoot);
        }
        for (int j = 0; j < jextractHeapRootsArray.length; j++) {
            JavaReference ref = (JavaReference) jextractHeapRootsArray[j];
            Object heapRoot = null;
            String name = null;
            long key = 0;
            try {
                heapRoot = ref.getTarget();
                if (heapRoot instanceof JavaObject) {
                    key = ((JavaObject) heapRoot).getID().getAddress();
                    name = "Instance of " + ((JavaObject) heapRoot).getJavaClass().getName();
                } else if (heapRoot instanceof JavaClass) {
                    key = ((JavaClass) heapRoot).getID().getAddress();
                    name = ((JavaClass) heapRoot).getName();
                } else {
                    fail("bail");
                }
            } catch (DataUnavailable e) {
                fail("bail");
            } catch (CorruptDataException e) {
                fail("bail");
            }
            List bucket = map.get(key);
            if (bucket == null) {
                System.out.println(String.format("Jextract found %s at address: %s.  Element #: %s that ddr does not know about", name, Long.toHexString(key), j));
                result = false;
                continue;
            }
            if (bucket.isEmpty()) {
                fail("bail");
            }
            bucket.remove(0);
            if (bucket.isEmpty()) {
                map.remove(key);
            }
        }
        // Whats left.
        int count = 0;
        Collection<List<Object>> remains = map.values();
        if (remains.size() > 0) {
            System.out.println("");
            System.out.println("DDR found the following that JExtract did not know about");
        }
        Iterator<List<Object>> bucketIter = remains.iterator();
        while (bucketIter.hasNext()) {
            List<Object> bucket = bucketIter.next();
            Iterator<Object> contentsIter = bucket.iterator();
            while (contentsIter.hasNext()) {
                Object obj = contentsIter.next();
                System.out.println(String.format("%s) %s", ++count, obj));
            }
        }
    }
    assertTrue(result);
}

Example 40 with DataUnavailable

use of com.ibm.dtfj.image.DataUnavailable in project openj9 by eclipse.

the class JavaStackFrameTest method printStackTrace.

private void printStackTrace(JavaThread thread) throws CorruptDataException {
    Iterator<?> frames = thread.getStackFrames();
    int count = 0;
    while (frames.hasNext()) {
        Object o = frames.next();
        System.err.print(count + ":");
        if (o instanceof JavaStackFrame) {
            JavaStackFrame frame = (JavaStackFrame) o;
            JavaLocation location = frame.getLocation();
            int lineNumber = -1;
            String fileName = "<unknown>";
            try {
                lineNumber = location.getLineNumber();
            } catch (DataUnavailable e) {
            // deliberately do nothing
            }
            try {
                fileName = location.getFilename();
            } catch (DataUnavailable e) {
            // Deliberately do nothing
            }
            System.err.println(location.getMethod().getClass().getName() + "." + location.getMethod().getName() + "(" + fileName + ":" + lineNumber + ")");
        } else if (o instanceof CorruptData) {
            System.err.println("<Corrupt Data: " + o + " >");
        } else {
            System.err.println("<Unexpected type: " + o.getClass().getName() + ":  " + o + " >");
        }
        count++;
    }
}