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

Example 26 with CorruptDataException

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

the class PHDJavaObject method getSections.

public Iterator<ImageSection> getSections() {
    List<ImageSection> c = new ArrayList<ImageSection>();
    ImageSection s;
    try {
        s = new PHDImageSection("Object section", getID(), getSize());
    } catch (CorruptDataException e) {
        s = new PHDCorruptImageSection("Corrupt object section", getID());
    }
    c.add(s);
    return c.iterator();
}

Example 27 with CorruptDataException

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

the class InfoMemoryCommand method printAllMemoryCategories.

/**
 * Print out the memory categories in nice ASCII art tree similar to the ones in javacore.
 * @param out the PrintStream to write to.
 * @param memoryCategories the memory categories to write
 */
private void printAllMemoryCategories(PrintStream out, Iterator memoryCategories) {
    try {
        while (memoryCategories.hasNext()) {
            Object obj = memoryCategories.next();
            if (obj instanceof JavaRuntimeMemoryCategory) {
                JavaRuntimeMemoryCategory category = (JavaRuntimeMemoryCategory) obj;
                LinkedList<Integer> stack = new LinkedList<Integer>();
                int childCount = countPrintableChildren(category);
                stack.addLast(childCount);
                printCategory(category, stack, out);
            }
        }
    } catch (CorruptDataException cde) {
        out.println("Corrupt Data encountered walking memory categories");
        logger.log(Level.FINE, Exceptions.getCorruptDataExceptionString(), cde);
    }
}

Example 28 with CorruptDataException

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

the class InfoThreadCommand method printJavaThreadInfo.

private void printJavaThreadInfo(JavaThread jt, boolean idPrinted) {
    out.print("    name:          ");
    try {
        out.print(jt.getName());
    } catch (CorruptDataException e) {
        out.print(Exceptions.getCorruptDataExceptionString());
        logger.log(Level.FINEST, Exceptions.getCorruptDataExceptionString(), e);
    }
    out.print("\n");
    if (!idPrinted) {
        try {
            if (jt.getImageThread() != null) {
                out.print("    id:            ");
                out.print(jt.getImageThread().getID());
            }
        } catch (CorruptDataException e) {
            out.print(Exceptions.getCorruptDataExceptionString());
            logger.log(Level.FINEST, Exceptions.getCorruptDataExceptionString(), e);
        } catch (DataUnavailable e) {
            out.print(Exceptions.getDataUnavailableString());
            logger.log(Level.FINEST, Exceptions.getDataUnavailableString(), e);
        } finally {
            out.print("\n");
        }
    }
    out.print("    Thread object: ");
    try {
        JavaObject threadObj = jt.getObject();
        if (null == threadObj) {
            out.print("<no associated Thread object>");
        } else {
            String threadClassName = null;
            try {
                JavaClass threadClass = threadObj.getJavaClass();
                threadClassName = threadClass.getName();
                if (threadClassName != null) {
                    out.print(threadClassName + " @ ");
                }
                out.print(Utils.toHex(threadObj.getID().getAddress()));
                // Navigate to the parent java/lang.Thread class to get the 'tid' and 'isDaemon' fields
                while (!JAVA_LANG_THREAD_CLASS.equals(threadClass.getName()) && threadClass != null) {
                    threadClass = threadClass.getSuperclass();
                }
                if (threadClass != null) {
                    Iterator itField = threadClass.getDeclaredFields();
                    boolean foundThreadId = false;
                    while (itField.hasNext()) {
                        JavaField jf = (JavaField) itField.next();
                        /* "uniqueId" field in java.lang.Thread is renamed to "tid". The old field name is
							 * checked to preserve functionality of DDR command with old core files that reference
							 * the "uniqueId" field.
							 */
                        if (!foundThreadId && (jf.getName().equals("uniqueId") || jf.getName().equals("tid"))) {
                            foundThreadId = true;
                            out.print("\n    ID:            " + Utils.getVal(threadObj, jf));
                        } else if (jf.getName().equals("isDaemon")) {
                            out.print("\n    Daemon:        " + Utils.getVal(threadObj, jf));
                        }
                    }
                }
            } catch (CorruptDataException cde) {
                out.print(" <in-flight or corrupt data encountered>");
                logger.log(Level.FINEST, Exceptions.getCorruptDataExceptionString(), cde);
            }
        }
    } catch (CorruptDataException cde) {
        out.print(Exceptions.getCorruptDataExceptionString());
        logger.log(Level.FINEST, Exceptions.getCorruptDataExceptionString(), cde);
    }
    out.print("\n");
    out.print("    Priority:      ");
    try {
        Integer pri = new Integer(jt.getPriority());
        out.print(pri.toString());
    } catch (CorruptDataException e) {
        out.print(Exceptions.getCorruptDataExceptionString());
        logger.log(Level.FINEST, Exceptions.getCorruptDataExceptionString(), e);
    }
    out.print("\n");
    out.print("    Thread.State:  ");
    try {
        out.print(StateToString.getThreadStateString(jt.getState()));
    } catch (CorruptDataException cde) {
        out.print(Exceptions.getCorruptDataExceptionString());
        logger.log(Level.FINEST, Exceptions.getCorruptDataExceptionString(), cde);
    }
    out.print("\n");
    out.print("    JVMTI state:   ");
    try {
        out.print(StateToString.getJVMTIStateString(jt.getState()));
    } catch (CorruptDataException cde) {
        out.print(Exceptions.getCorruptDataExceptionString());
        logger.log(Level.FINEST, Exceptions.getCorruptDataExceptionString(), cde);
    }
    out.print("\n");
    printThreadBlocker(jt);
    out.print("    Java stack frames: ");
    printJavaStackFrameInfo(jt);
    out.print("\n");
}

Example 29 with CorruptDataException

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

the class InfoThreadCommand method printThreadInfo.

private boolean printThreadInfo(String id, Map threads) {
    Iterator itThread;
    ImageThread it;
    boolean found = false;
    itThread = ctx.getProcess().getThreads();
    while (itThread.hasNext()) {
        Object next = itThread.next();
        if (next instanceof CorruptData) {
            out.print("\n  <corrupt data>");
            continue;
        }
        it = (ImageThread) next;
        // Obtain the native thread ID for this thread, and for zOS also obtain the TCB
        String currentTID = null;
        String currentTCB = null;
        try {
            currentTID = it.getID();
            if (_is_zOS) {
                currentTCB = it.getProperties().getProperty("TCB");
            }
        } catch (CorruptDataException e) {
        // Continue with what we have obtained so far
        }
        // the requested native thread ID or zOS TCB, then go ahead and print out this thread.
        if (null == id || id.equalsIgnoreCase(currentTID) || id.equalsIgnoreCase(currentTCB)) {
            out.print("  thread id: ");
            out.print(currentTID);
            out.print("\n");
            printRegisters(it);
            out.print("   native stack sections:");
            out.print("\n");
            Iterator itStackSection = it.getStackSections();
            while (itStackSection.hasNext()) {
                Object nextStackSection = itStackSection.next();
                if (nextStackSection instanceof CorruptData) {
                    out.print("    " + Exceptions.getCorruptDataExceptionString() + "\n");
                    continue;
                }
                ImageSection is = (ImageSection) nextStackSection;
                printStackSection(is);
            }
            printStackFrameInfo(it);
            out.print("   properties:");
            out.print("\n");
            printProperties(it);
            out.print("   associated Java thread: ");
            ThreadData td = (ThreadData) threads.remove(currentTID);
            if (null != td) {
                out.print("\n");
                printJavaThreadInfo(td.getThread(), true);
            } else {
                out.print("<no associated Java thread>\n");
            }
            out.print("\n");
            found = true;
        }
    }
    return found;
}

Example 30 with CorruptDataException

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

the class InfoThreadCommand method printThreadBlocker.

private void printThreadBlocker(JavaThread jt) {
    try {
        if ((jt.getState() & JavaThread.STATE_PARKED) != 0) {
            out.print("      parked on: ");
            // java.util.concurrent locks
            if (jt.getBlockingObject() == null) {
                out.print("<unknown>");
            } else {
                JavaObject jo = jt.getBlockingObject();
                String lockID = Long.toHexString(jo.getID().getAddress());
                out.print(jo.getJavaClass().getName() + "@0x" + lockID);
                String ownerThreadName = "<unknown>";
                String ownerThreadID = "<null>";
                out.print(" owner name: ");
                JavaThread lockOwnerThread = Utils.getParkBlockerOwner(jo, ctx.getRuntime());
                if (lockOwnerThread != null) {
                    ownerThreadName = lockOwnerThread.getName();
                    if (lockOwnerThread.getImageThread() != null) {
                        ownerThreadID = lockOwnerThread.getImageThread().getID();
                    }
                } else {
                    // If the owning thread has ended we won't find the JavaThread
                    // We can still get the owning thread name from the java.lang.Thread object itself.
                    // We won't get a thread id.
                    JavaObject lockOwnerObj = Utils.getParkBlockerOwnerObject(jo, ctx.getRuntime());
                    if (lockOwnerObj != null) {
                        ownerThreadName = Utils.getThreadNameFromObject(lockOwnerObj, ctx.getRuntime(), out);
                    }
                }
                out.print("\"" + ownerThreadName + "\"");
                out.print(" owner id: " + ownerThreadID);
            }
            out.print("\n");
        } else if ((jt.getState() & JavaThread.STATE_IN_OBJECT_WAIT) != 0) {
            out.print("      waiting to be notified on: ");
        } else if ((jt.getState() & JavaThread.STATE_BLOCKED_ON_MONITOR_ENTER) != 0) {
            out.print("      waiting to enter: ");
        }
        if ((jt.getState() & JavaThread.STATE_IN_OBJECT_WAIT) != 0 || (jt.getState() & JavaThread.STATE_BLOCKED_ON_MONITOR_ENTER) != 0) {
            // java monitors
            MonitorState ms = (MonitorState) monitors.get(jt);
            if (ms == null) {
                out.println("<monitor information not available>");
            } else {
                JavaObject jo = ms.getMonitor().getObject();
                if (null == jo) {
                    // working with a raw monitor
                    String name = ms.getMonitor().getName();
                    if (name.equals("")) {
                        name = "<unnamed>";
                    }
                    out.print("\"" + name + "\"");
                    out.print(" with ID ");
                    out.print(Utils.toHex(ms.getMonitor().getID().getAddress()));
                } else {
                    // working with a Java monitor
                    String lockID = Long.toHexString(jo.getID().getAddress());
                    out.print(jo.getJavaClass().getName() + "@0x" + lockID);
                }
                out.print(" owner name: ");
                if (ms.getMonitor().getOwner() != null) {
                    out.print("\"" + ms.getMonitor().getOwner().getName() + "\"");
                    if (ms.getMonitor().getOwner().getImageThread() != null) {
                        out.print(" owner id: " + ms.getMonitor().getOwner().getImageThread().getID());
                    }
                } else {
                    out.print("<unowned>");
                }
                out.print("\n");
            }
        }
    } catch (CorruptDataException cde) {
        out.print(Exceptions.getCorruptDataExceptionString());
        logger.log(Level.FINEST, Exceptions.getCorruptDataExceptionString(), cde);
    } catch (DataUnavailable e) {
        out.print(Exceptions.getDataUnavailableString());
        logger.log(Level.FINEST, Exceptions.getDataUnavailableString(), e);
    } catch (MemoryAccessException e) {
        out.print(Exceptions.getMemoryAccessExceptionString());
        logger.log(Level.FINEST, Exceptions.getMemoryAccessExceptionString(), e);
    }
}