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

Example 31 with CorruptDataException

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

the class Utils method getStringVal.

private static String getStringVal(JavaObject jo) {
    JavaClass jc;
    try {
        jc = jo.getJavaClass();
    } catch (CorruptDataException e) {
        return "<cannot get String class from String object (" + Exceptions.getCorruptDataExceptionString() + ")>";
    }
    Iterator itJavaField = jc.getDeclaredFields();
    JavaField jf = null;
    while (itJavaField.hasNext()) {
        jf = (JavaField) itJavaField.next();
        try {
            if (jf.getSignature().equals("[C") && !Modifier.isStatic(jf.getModifiers()))
                break;
        } catch (CorruptDataException e) {
        // if we have an exception, do nothing and go onto the next field
        }
    }
    if (jf == null) {
        // empty field iterator (occurs e.g. when reading PHD heapdumps), can't get the char array
        return "<cannot get char array out of String>";
    }
    JavaObject charArray = null;
    try {
        charArray = (JavaObject) jf.get(jo);
    } catch (CorruptDataException e) {
        return "<cannot get char array out of String (" + Exceptions.getCorruptDataExceptionString() + ")>";
    } catch (MemoryAccessException e) {
        return "<cannot get char array out of String (" + Exceptions.getMemoryAccessExceptionString() + ")>";
    }
    int arraySize;
    try {
        arraySize = charArray.getArraySize();
    } catch (CorruptDataException e) {
        return "<cannot determine the size of the array (" + Exceptions.getCorruptDataExceptionString() + ")>";
    }
    char[] dst = new char[arraySize];
    try {
        charArray.arraycopy(0, dst, 0, arraySize);
    } catch (CorruptDataException e) {
        return "<cannot copy data from the array (" + Exceptions.getCorruptDataExceptionString() + ")>";
    } catch (MemoryAccessException e) {
        return "<cannot copy data from the array (" + Exceptions.getMemoryAccessExceptionString() + ")>";
    }
    return "\"" + Utils.getPrintable(new String(dst)) + "\"";
}

Example 32 with CorruptDataException

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

the class InfoProcCommand method printJITOptions.

private void printJITOptions() {
    try {
        if (ctx.getRuntime().isJITEnabled()) {
            out.println("\t JIT was enabled for this runtime");
            Properties props = ctx.getRuntime().getJITProperties();
            StringBuilder options = new StringBuilder("\t ");
            for (Object key : props.keySet()) {
                options.append(" " + key + " " + props.get(key) + ",");
            }
            out.println(options.substring(0, options.length() - 1));
        } else {
            out.println("\t JIT was disabled for this runtime");
        }
    } catch (CorruptDataException e) {
        out.println("\t JIT options\n");
    } catch (DataUnavailable e) {
        out.println("\t JIT options not supported by this implementation of DTFJ");
    }
}

Example 33 with CorruptDataException

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

the class InfoProcCommand method printEnvironmentVariables.

private void printEnvironmentVariables() {
    ImageProcess ip = ctx.getProcess();
    out.print("\t Environment variables:");
    out.print("\n");
    Properties variables;
    try {
        variables = ip.getEnvironment();
    } catch (CorruptDataException e) {
        out.print("\t  " + Exceptions.getCorruptDataExceptionString() + "\n");
        return;
    } catch (DataUnavailable e) {
        out.print("\t  " + Exceptions.getDataUnavailableString() + "\n");
        return;
    }
    Enumeration<?> keys = variables.propertyNames();
    while (keys.hasMoreElements()) {
        String key = (String) keys.nextElement();
        printVariableInfo(key, variables.getProperty(key));
    }
}

Example 34 with CorruptDataException

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

the class InfoSymCommand method listModules.

private void listModules(String moduleName) {
    ImageProcess ip = ctx.getProcess();
    try {
        Object e = ip.getExecutable();
        if (e instanceof ImageModule) {
            ImageModule exe = (ImageModule) e;
            if (moduleName != null) {
                if (checkModuleName(exe.getName(), moduleName)) {
                    printModule(exe, true);
                }
            } else {
                printModule(exe, false);
            }
        } else if (e instanceof CorruptData) {
            CorruptData corruptObj = (CorruptData) e;
            // warn the user that this image library is corrupt
            out.print("\t  <corrupt executable encountered: " + corruptObj.toString() + ">\n\n");
        }
    } catch (DataUnavailable e) {
        out.println(Exceptions.getDataUnavailableString());
    } catch (CorruptDataException e) {
        out.println(Exceptions.getCorruptDataExceptionString());
    }
    Iterator iLibs;
    try {
        iLibs = ip.getLibraries();
    } catch (DataUnavailable du) {
        iLibs = null;
        out.println(Exceptions.getDataUnavailableString());
    } catch (CorruptDataException cde) {
        iLibs = null;
        out.println(Exceptions.getCorruptDataExceptionString());
    }
    // iterate through the libraries
    while (null != iLibs && iLibs.hasNext()) {
        Object next = iLibs.next();
        if (next instanceof ImageModule) {
            ImageModule mod = (ImageModule) next;
            String currentName = null;
            try {
                currentName = mod.getName();
            } catch (CorruptDataException e) {
                out.print("\t  <corrupt library name: " + mod.toString() + ">\n\n");
            }
            if (moduleName != null) {
                if (checkModuleName(currentName, moduleName)) {
                    printModule(mod, true);
                }
            } else {
                printModule(mod, false);
            }
        } else if (next instanceof CorruptData) {
            CorruptData corruptObj = (CorruptData) next;
            // warn the user that this image library is corrupt
            out.print("\t  <corrupt library encountered: " + corruptObj.toString() + ">\n\n");
        } else {
            // unexpected type in iterator
            out.print("\t  <corrupt library encountered>\n\n");
        }
    }
}

Example 35 with CorruptDataException

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

the class InfoClassCommand method printClassDetails.

private void printClassDetails(JavaRuntime jr, String className, JavaClass jc) {
    String spaces = "    ";
    String cdeInfo = "N/A (CorruptDataException occurred)";
    try {
        out.print("name = " + jc.getName());
    } catch (CorruptDataException dce) {
        out.print("name = " + cdeInfo);
    }
    out.print("\n\n\t");
    out.print("ID = " + Utils.toHex(jc.getID()));
    String superClassId;
    try {
        JavaClass superClass = jc.getSuperclass();
        if (null == superClass) {
            superClassId = "<no superclass>";
        } else {
            superClassId = Utils.toHex(superClass.getID());
        }
    } catch (CorruptDataException dce) {
        superClassId = cdeInfo;
    }
    out.print(spaces);
    out.print("superID = " + superClassId);
    // Omitting size of class because that might differ between instances (i.e. arrays)
    String classLoaderId;
    try {
        JavaClassLoader jClassLoader = jc.getClassLoader();
        JavaObject jo = jClassLoader.getObject();
        if (jo != null) {
            classLoaderId = Utils.toHex(jo.getID());
        } else {
            classLoaderId = "<data unavailable>";
        }
    } catch (CorruptDataException cde) {
        classLoaderId = cdeInfo;
    }
    out.print(spaces);
    out.print("\n\t");
    out.print("classLoader = " + classLoaderId);
    String modifiersInfo;
    try {
        modifiersInfo = Utils.getClassModifierString(jc);
    } catch (CorruptDataException cde) {
        modifiersInfo = cdeInfo;
    }
    out.print(spaces);
    out.print("modifiers: " + modifiersInfo);
    out.print("\n\n");
    ClassStatistics d = getClassStatisticsFor(jr, jc);
    out.print("\tnumber of instances:     " + d.getCount() + "\n");
    out.print("\ttotal size of instances on the heap: " + d.getSize() + " bytes");
    out.print("\n\n");
    printClassHierarchy(jc);
    out.print("\n");
    printFields(jc);
    out.print("\n");
    printMethods(jc);
}