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

Example 66 with CorruptDataException

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

the class J9DDRImageProcess method getEnvironment.

/**
 * This method gets the environment variables.
 * First it tries to extract it from RAS structure.
 * If not, it tries to get it from loaded modules.
 * @return Properties instance of environment variables.
 * @throws DataUnavailable
 * @throws CorruptDataException
 */
public Properties getEnvironment() throws DataUnavailable, CorruptDataException {
    try {
        checkFailureInfo();
        if (j9rasProcessData != null) {
            try {
                Properties properties;
                long environ = j9rasProcessData.getEnvironment();
                if (process.getPlatform() == Platform.WINDOWS && j9rasProcessData.version() > 4) {
                    // Get the env vars from an environment strings block instead of the environ global
                    properties = EnvironmentUtils.readEnvironmentStrings(process, environ);
                } else {
                    long stringPointer = process.getPointerAt(environ);
                    properties = EnvironmentUtils.readEnvironment(process, stringPointer);
                }
                if ((null == properties) || (0 == properties.size())) {
                    /* In the case of env vars is null or empty, 
						 * throw exception so that it tries to get env vars from modules 
						 */
                    throw new com.ibm.j9ddr.CorruptDataException("");
                }
                return properties;
            } catch (com.ibm.j9ddr.CorruptDataException e1) {
                /* Seems like RAS structure is corrupted. Try to get it from modules. */
                return process.getEnvironmentVariables();
            }
        } else {
            /* We don't have a J9RAS structure to work with. Try to get it from modules. */
            return process.getEnvironmentVariables();
        }
    } catch (com.ibm.j9ddr.CorruptDataException e) {
        throw new DTFJCorruptDataException(process, e);
    } catch (DataUnavailableException e) {
        throw new DataUnavailable(e.getMessage());
    }
}

Example 67 with CorruptDataException

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

the class DTFJJavaRuntimeHelper method getTotalHeapSize.

@SuppressWarnings("rawtypes")
public static long getTotalHeapSize(JavaRuntime runtime, IProcess process) throws CorruptDataException {
    if (totalSizeOfAllHeaps > 0) {
        // already calculated, never changes
        return totalSizeOfAllHeaps;
    }
    if (runtime == null) {
        throw new com.ibm.dtfj.image.CorruptDataException(J9DDRDTFJUtils.newCorruptData(process, "No Java Runtime present"));
    }
    Iterator heaps = runtime.getHeaps();
    while (heaps.hasNext()) {
        Object nextHeap = heaps.next();
        Iterator sections;
        if (nextHeap instanceof JavaHeap) {
            sections = ((JavaHeap) nextHeap).getSections();
        } else {
            // CorruptData?
            throw new com.ibm.dtfj.image.CorruptDataException(J9DDRDTFJUtils.newCorruptData(process, "Corrupt heap encountered whilst calculating total heap size"));
        }
        while (sections.hasNext()) {
            Object nextSection = sections.next();
            if (nextSection instanceof ImageSection) {
                long sectionSize = ((ImageSection) nextSection).getSize();
                if (Long.MAX_VALUE - sectionSize > totalSizeOfAllHeaps) {
                    totalSizeOfAllHeaps += sectionSize;
                } else {
                    // no point adding further, the cap is on Long.MAX_VALUE
                    return Long.MAX_VALUE;
                }
            } else {
                // CorruptData?
                throw new com.ibm.dtfj.image.CorruptDataException(J9DDRDTFJUtils.newCorruptData(process, "Corrupt section encountered whilst calculating total heap size"));
            }
        }
    }
    return totalSizeOfAllHeaps;
}

Example 68 with CorruptDataException

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

the class DTFJJavaObject method getHeap.

public JavaHeap getHeap() throws CorruptDataException, DataUnavailable {
    try {
        if (heap == null) {
            DTFJJavaRuntime runtime = DTFJContext.getRuntime();
            heap = runtime.getHeapFromAddress(DTFJContext.getImagePointer(object.getAddress()));
            if (heap == null) {
                throw new CorruptDataException(new CorruptJavaObject(null, object));
            }
        }
        return heap;
    } catch (Throwable t) {
        throw J9DDRDTFJUtils.handleAsCorruptDataException(DTFJContext.getProcess(), t);
    }
}

Example 69 with CorruptDataException

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

the class DTFJJavaObject method getAssociatedClass.

private JavaClass getAssociatedClass(JavaObject targetClassLoaderObject) {
    Iterator<?> classloaderIt = DTFJContext.getRuntime().getJavaClassLoaders();
    while (classloaderIt.hasNext()) {
        Object clObj = classloaderIt.next();
        if (clObj instanceof JavaClassLoader) {
            JavaClassLoader loader = (JavaClassLoader) clObj;
            try {
                if (targetClassLoaderObject != null && !loader.getObject().equals(targetClassLoaderObject)) {
                    continue;
                }
            } catch (CorruptDataException e1) {
            // This is an optimisation so if it fails, continue.
            }
            Iterator<?> classesIt = loader.getDefinedClasses();
            while (classesIt.hasNext()) {
                Object classObj = classesIt.next();
                if (classObj instanceof JavaClass) {
                    JavaClass clazz = (JavaClass) classObj;
                    try {
                        if (clazz.getObject().equals(this)) {
                            return clazz;
                        }
                    } catch (CorruptDataException e) {
                    // Deliberately do nothing. If this is the class we're interesting in, we'll
                    // insert a CorruptData object later when it isn't found. If it's not the class
                    // we want, we don't need to worry
                    }
                }
            }
        }
    }
    return null;
}

Example 70 with CorruptDataException

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

the class DTFJJavaObject method getSections.

public Iterator getSections() {
    try {
        fetchDeferredData();
        LinkedList<ImageSection> sections = new LinkedList<ImageSection>();
        long mainSectionSize = ObjectModel.getConsumedSizeInBytesWithHeader(object).longValue();
        String name = getSectionName(mainSectionSize);
        J9DDRImageSection section = DTFJContext.getImageSection(object.getAddress(), name);
        section.setSize(mainSectionSize);
        sections.add(section);
        return sections.iterator();
    } catch (CorruptDataException e) {
        return corruptIterator(e.getCorruptData());
    } catch (Throwable t) {
        CorruptData cd = J9DDRDTFJUtils.handleAsCorruptData(DTFJContext.getProcess(), t);
        return corruptIterator(cd);
    }
}