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

Example 6 with DataUnavailable

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

the class XJCommand method printReferences.

/**
 * Print the references from the given object. Omit the first reference: this is always a reference to the
 * object's class.
 */
public static void printReferences(JavaObject jo, PrintStream out) {
    Iterator<?> references = jo.getReferences();
    if (references.hasNext()) {
        // reference to the class, ignore this one
        references.next();
    }
    if (!references.hasNext()) {
        out.print("\t    references: <none>\n ");
        out.print("\t     ");
    } else {
        out.print("\t    references:\n ");
        out.print("\t     ");
        while (references.hasNext()) {
            Object potential_reference = references.next();
            if (potential_reference instanceof JavaReference) {
                JavaReference reference = (JavaReference) potential_reference;
                try {
                    Object target = reference.getTarget();
                    if (target instanceof JavaObject) {
                        out.print(" 0x" + Long.toHexString(((JavaObject) target).getID().getAddress()));
                    } else if (target instanceof JavaClass) {
                        out.print(" 0x" + Long.toHexString(((JavaClass) target).getID().getAddress()));
                    }
                } catch (DataUnavailable e) {
                // don't print anything
                } catch (CorruptDataException e) {
                    out.print(Exceptions.getCorruptDataExceptionString());
                }
            }
        }
    }
    out.print("\n\n");
}

Example 7 with DataUnavailable

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

the class J9DDRImage method getSystemSubType.

public String getSystemSubType() throws DataUnavailable, CorruptDataException {
    checkJ9RASMachineData();
    if (j9MachineData != null) {
        try {
            return j9MachineData.osVersion();
        } catch (com.ibm.j9ddr.CorruptDataException e) {
        // Ignore  - fall back on core readers
        }
    }
    Properties prop = coreFile.getProperties();
    String result = prop.getProperty(ICore.SYSTEM_SUBTYPE_PROPERTY);
    if (result != null) {
        return result;
    } else {
        throw new DataUnavailable();
    }
}

Example 8 with DataUnavailable

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

the class J9DDRImageProcess method getCommandLine.

/**
 * This method tries to get command line of the program that generated core file.
 *
 * We can't get the command line from the core dump on zOS, or on recent Windows versions. On Linux
 * it may be truncated. The java launcher stores the command line in an environment variable, so for
 * all platforms we now try that first, with the core reader as a fallback.
 *
 * @return String instance of the commandline
 * @throws DataUnavailable
 * @throws {@link CorruptDataException}
 */
public String getCommandLine() throws DataUnavailable, CorruptDataException {
    try {
        Properties environment = getEnvironment();
        String javaCommandLine = environment.getProperty(JAVA_COMMAND_LINE_ENVIRONMENT_VARIABLE);
        if (javaCommandLine != null) {
            return javaCommandLine;
        }
        return process.getCommandLine();
    } catch (com.ibm.j9ddr.CorruptDataException e) {
        throw new DTFJCorruptDataException(process, e);
    } catch (DataUnavailableException e) {
        throw new DataUnavailable(e.getMessage());
    }
}

Example 9 with DataUnavailable

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

the class J9DDRImage method getCreationTime.

/**
 * Return the dump creation time. See JTC-JAT 92709, we now obtain this from a field in the J9RAS
 * structure that is set by the JVM dump agent when the dump is triggered. If that is not available,
 * we revert to obtaining the creation time via the core readers from a timestamp that the OS puts
 * in the dump. This is supported in system dumps on Windows and zOS, but not Linux or AIX.
 *
 * @return long - dump creation time (milliseconds since 1970)
 */
public long getCreationTime() throws DataUnavailable {
    checkJ9RASMachineData();
    // First try getting the time from the dump time field in the J9RAS structure
    if (j9MachineData != null) {
        try {
            return j9MachineData.dumpTimeMillis();
        } catch (com.ibm.j9ddr.CorruptDataException e) {
        // Fall-through to get the creation time from the core dump itself
        } catch (com.ibm.j9ddr.DataUnavailableException e) {
        // Fall-through to get the creation time from the core dump itself
        }
    }
    // Revert to obtaining the creation time via the core readers, from the OS timestamp in the dump
    Properties prop = coreFile.getProperties();
    String result = prop.getProperty(ICore.CORE_CREATE_TIME_PROPERTY);
    if (result != null) {
        return Long.parseLong(result);
    } else {
        throw new DataUnavailable();
    }
}

Example 10 with DataUnavailable

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

the class J9DDRImage method getProcessorSubType.

public String getProcessorSubType() throws DataUnavailable, CorruptDataException {
    Properties prop = coreFile.getProperties();
    String result = prop.getProperty(ICore.PROCESSOR_SUBTYPE_PROPERTY);
    if (result != null) {
        return result;
    } else {
        throw new DataUnavailable();
    }
}