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

Example 56 with DataUnavailable

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

the class InfoLockCommand method showSystemLocks.

private void showSystemLocks() {
    Vector vMonitorsWithLockedObjects = new Vector();
    JavaRuntime jRuntime = ctx.getRuntime();
    Iterator monitors = jRuntime.getMonitors();
    out.println("\nSystem locks...");
    while (monitors.hasNext()) {
        JavaMonitor jMonitor = (JavaMonitor) monitors.next();
        JavaObject jObject = jMonitor.getObject();
        try {
            String monitorName = jMonitor.getName().trim();
            if (monitorName.equalsIgnoreCase("")) {
                monitorName = "<un-named monitor>";
            }
            out.println("id: 0x" + jMonitor.getID() + " name: " + jMonitor.getName());
            JavaThread owner = jMonitor.getOwner();
            if (null != owner) {
                try {
                    out.println("\towner thread id: " + owner.getImageThread().getID() + " name: " + owner.getName());
                } catch (DataUnavailable e) {
                    out.println("\towner thread id: " + Exceptions.getDataUnavailableString());
                    logger.log(Level.FINE, Exceptions.getDataUnavailableString(), e);
                }
            }
            showWaiters(jMonitor);
        } catch (CorruptDataException cde) {
            out.println("\nwarning, corrupt data encountered during scan for system locks...");
        }
        if (null != jObject) {
            // Remember object monitors (flat or inflated) for later
            vMonitorsWithLockedObjects.add(jMonitor);
        }
    }
    showLockedObjects(vMonitorsWithLockedObjects);
}

Example 57 with DataUnavailable

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

the class InfoLockCommand method showLockedObjects.

private void showLockedObjects(Vector vMonitorsWithLockedObjects) {
    out.println("\nObject Locks in use...");
    if (0 == vMonitorsWithLockedObjects.size()) {
        out.println("\t...None.");
        return;
    }
    Iterator lockedObjects = vMonitorsWithLockedObjects.iterator();
    while (lockedObjects.hasNext()) {
        JavaMonitor jMonitor = (JavaMonitor) lockedObjects.next();
        JavaObject jObject = jMonitor.getObject();
        try {
            JavaThread owner = jMonitor.getOwner();
            String className = "<unknown class>";
            JavaClass jClass = jObject.getJavaClass();
            if (null != jClass) {
                className = jClass.getName();
            }
            String jObjectID = Long.toHexString(jObject.getID().getAddress());
            if (null == owner) {
                out.println(className + "@0x" + jObjectID);
            } else {
                String owningThreadID = null;
                try {
                    owningThreadID = owner.getImageThread().getID();
                } catch (DataUnavailable e) {
                    owningThreadID = Exceptions.getDataUnavailableString();
                }
                out.println(className + "@0x" + jObjectID);
                out.println("\towner thread id: " + owningThreadID + " name: " + owner.getName());
            }
            showWaiters(jMonitor);
        } catch (CorruptDataException cde) {
            logger.log(Level.FINE, Exceptions.getCorruptDataExceptionString(), cde);
        }
    }
}

Example 58 with DataUnavailable

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

the class InfoMemoryCommand method printDbgmallocWarning.

private void printDbgmallocWarning(PrintStream out, JavaRuntime runtime) {
    try {
        boolean dbgmalloc = false;
        JavaVMInitArgs args = runtime.getJavaVMInitArgs();
        if (args != null) {
            Iterator<?> opts = args.getOptions();
            while (opts.hasNext()) {
                Object obj = opts.next();
                if (obj instanceof JavaVMOption) {
                    JavaVMOption opt = (JavaVMOption) obj;
                    if (COM_IBM_DBGMALLOC_PROPERTY.equals(opt.getOptionString())) {
                        dbgmalloc = true;
                    }
                }
            }
        }
        if (!dbgmalloc) {
            out.println();
            out.printf("Note: %s was not found in the Java VM init options.\nMemory allocated by some class library components will not have been recorded.\n", COM_IBM_DBGMALLOC_PROPERTY);
        }
    } catch (DataUnavailable du) {
        out.println("Java VM init options information unavailable.");
        logger.log(Level.FINE, Exceptions.getDataUnavailableString(), du);
    } catch (CorruptDataException cde) {
        out.println("Corrupt Data encountered walking Java VM init options");
        logger.log(Level.FINE, Exceptions.getCorruptDataExceptionString(), cde);
    }
}

Example 59 with DataUnavailable

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

the class InfoMemoryCommand method run.

public void run(String command, String[] args, IContext context, PrintStream out) throws CommandException {
    if (initCommand(command, args, context, out)) {
        // processing already handled by super class
        return;
    }
    JavaRuntime runtime = ctx.getRuntime();
    try {
        Iterator memoryCategories = runtime.getMemoryCategories();
        printAllMemoryCategories(out, memoryCategories);
        printDbgmallocWarning(out, runtime);
    } catch (DataUnavailable du) {
        out.println("Memory categories information unavailable.");
        logger.log(Level.FINE, Exceptions.getDataUnavailableString(), du);
    }
}

Example 60 with DataUnavailable

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

the class InfoThreadCommand method printStackFrameInfo.

private void printStackFrameInfo(ImageThread it) {
    Iterator itStackFrame;
    ImageStackFrame isf;
    try {
        itStackFrame = it.getStackFrames();
    } catch (DataUnavailable d) {
        out.print("   native stack frames: " + Exceptions.getDataUnavailableString() + "\n");
        return;
    }
    out.print("   native stack frames:");
    out.print("\n");
    while (itStackFrame.hasNext()) {
        Object o = itStackFrame.next();
        if (o instanceof CorruptData) {
            out.print("    <corrupt stack frame: " + ((CorruptData) o).toString() + ">\n");
            continue;
        }
        isf = (ImageStackFrame) o;
        out.print("    bp: ");
        try {
            out.print(toAdjustedHex(isf.getBasePointer().getAddress()));
        } catch (CorruptDataException e) {
            if (getArtifactType() == ArtifactType.javacore) {
                // javacore does not provide native stack base pointers, show as unavailable, not corrupt
                out.print(Exceptions.getDataUnavailableString());
            } else {
                out.print(Exceptions.getCorruptDataExceptionString());
            }
        }
        out.print(" pc: ");
        try {
            out.print(toAdjustedHex(isf.getProcedureAddress().getAddress()));
        } catch (CorruptDataException e) {
            out.print(Exceptions.getCorruptDataExceptionString());
        }
        out.print(" ");
        try {
            out.print(isf.getProcedureName());
        } catch (CorruptDataException e) {
            out.print(Exceptions.getCorruptDataExceptionString());
        }
        out.print("\n");
    }
}