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

Example 41 with CorruptDataException

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

the class PHDJavaRuntime method prepClassLoaders.

/**
 * Remember objects associated with class loaders
 * Performance optimization - we can then find these objects on a scan through the heap
 * and remember them, saving a fruitless search of the heap if they only exist in a javacore.
 */
private void prepClassLoaders() {
    if (metaJavaRuntime != null) {
        final PHDJavaClassLoader boot = loaders.get(null);
        for (Iterator it = metaJavaRuntime.getJavaClassLoaders(); it.hasNext(); ) {
            Object next = it.next();
            if (next instanceof CorruptData)
                continue;
            JavaClassLoader load = (JavaClassLoader) next;
            try {
                JavaObject jo = load.getObject();
                saveExtraObject(boot, jo);
            } catch (CorruptDataException e) {
            }
        }
    }
}

Example 42 with CorruptDataException

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

the class PHDJavaRuntime method saveExtraObject.

private void saveExtraObject(final PHDJavaClassLoader boot, JavaObject jo) {
    if (jo != null) {
        long addr = jo.getID().getAddress();
        JavaClass cls;
        try {
            cls = boot.findClassUnique(jo.getJavaClass().getName());
        } catch (CorruptDataException e) {
            cls = null;
        }
        // Construct a dummy object with little information in case the object is not in the heap
        JavaObject jo2 = new PHDJavaObject.Builder(heaps.get(0), addr, cls, PHDJavaObject.NO_HASHCODE, -1).refsAsArray(NOREFS, 0).length(PHDJavaObject.UNKNOWN_TYPE).build();
        extraObjectsCache.put(addr, jo2);
    }
}

Example 43 with CorruptDataException

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

the class Utils method getClassGivenName.

public static JavaClass[] getClassGivenName(String className, JavaRuntime jr, PrintStream out) {
    Iterator itJavaClassLoader = jr.getJavaClassLoaders();
    List classes = new ArrayList();
    while (itJavaClassLoader.hasNext()) {
        Object nextCl = itJavaClassLoader.next();
        if (!(nextCl instanceof JavaClassLoader)) {
            continue;
        }
        JavaClassLoader jcl = (JavaClassLoader) nextCl;
        Iterator itJavaClass = jcl.getDefinedClasses();
        while (itJavaClass.hasNext()) {
            Object next = itJavaClass.next();
            if (!(next instanceof JavaClass)) {
                continue;
            }
            JavaClass jc = (JavaClass) next;
            String currClassName;
            try {
                currClassName = jc.getName();
                if (currClassName.equals(className)) {
                    classes.add(jc);
                }
            } catch (CorruptDataException e) {
                out.print("\t  <error getting class name while traversing classes: ");
                out.print(Exceptions.getCorruptDataExceptionString());
                out.print(">\n");
                currClassName = null;
            }
        }
    }
    if (classes.size() > 0) {
        return (JavaClass[]) classes.toArray(new JavaClass[0]);
    } else {
        return null;
    }
}

Example 44 with CorruptDataException

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

the class Utils method getVal.

// note: this method lets you pass in a null JavaObject, but it _will_ throw a
// NullPointerException if the JavaField is not a static field when you pass it
// a null JavaObject; this is the behavior of jf.get() and jf.getString()
public static String getVal(JavaObject jo, JavaField jf) {
    Object o;
    String s;
    if (null == jf) {
        o = jo;
        s = null;
    } else {
        try {
            o = jf.get(jo);
        } catch (CorruptDataException e) {
            return "<corrupt data>";
        } catch (MemoryAccessException d) {
            return "<invalid memory address>";
        } catch (NumberFormatException nfe) {
            return "<invalid number>";
        }
        try {
            s = jf.getString(jo);
        } catch (CorruptDataException e) {
            s = null;
        } catch (MemoryAccessException e) {
            s = null;
        } catch (IllegalArgumentException e) {
            s = null;
        }
    }
    return getVal(o, s, jf);
}

Example 45 with CorruptDataException

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

the class Utils method getVal.

public static String getVal(Object o, String str, JavaField jf) {
    String val = "";
    Long value = null;
    boolean object = false;
    if (null == o) {
        val += "null";
    } else {
        if (o instanceof Boolean) {
            val += ((Boolean) o).toString();
        } else if (o instanceof Byte) {
            byte b = ((Byte) o).byteValue();
            val += String.valueOf(b);
            value = new Long((new Byte(b)).longValue());
        } else if (o instanceof Character) {
            char c = ((Character) o).charValue();
            val += Utils.getPrintableWithQuotes(c);
            value = new Long((new Integer((int) c).longValue()));
        } else if (o instanceof Double) {
            double d = ((Double) o).doubleValue();
            val += String.valueOf(d);
            value = new Long(Double.doubleToRawLongBits(d));
        } else if (o instanceof Float) {
            float f = ((Float) o).floatValue();
            val += String.valueOf(f);
            value = new Long(Float.floatToRawIntBits(f));
        } else if (o instanceof Integer) {
            int i = ((Integer) o).intValue();
            val += String.valueOf(i);
            value = new Long((new Integer(i)).longValue());
        } else if (o instanceof Long) {
            long l = ((Long) o).longValue();
            val += String.valueOf(l);
            value = new Long(l);
        } else if (o instanceof Short) {
            short s = ((Short) o).shortValue();
            val += String.valueOf(s);
            value = new Long((new Short(s)).longValue());
        } else if (o instanceof String) {
            val += (String) o;
        } else if (o instanceof JavaObject) {
            if (Utils.isNull((JavaObject) o)) {
                val += "null";
            } else {
                object = true;
            }
        } else {
        // FIXME
        }
        // because we want control over the exceptions that are thrown
        if (object) {
            JavaObject joField = (JavaObject) o;
            JavaClass jcField;
            String jcName;
            try {
                jcField = joField.getJavaClass();
            } catch (CorruptDataException e) {
                jcField = null;
            }
            try {
                if (null != jcField) {
                    jcName = jcField.getName();
                } else {
                    jcName = null;
                }
            } catch (CorruptDataException e) {
                jcName = null;
            }
            if (null != jcName && jcName.equals("java/lang/String")) {
                if (null == str) {
                    val += getStringVal(joField);
                } else {
                    val += "\"" + Utils.getPrintable(str) + "\"";
                }
                val += " @ ";
                val += Utils.toHex(joField.getID().getAddress());
            } else {
                val += "<object>" + " @ " + Utils.toHex(joField.getID().getAddress());
            }
        }
    }
    if (null != value) {
        val += " (";
        val += Utils.toHex(value.longValue());
        val += ")";
    }
    return val;
}