Module openj9.dtfj

Package com.ibm.dtfj.java.javacore

Class JCJavaVMInitArgs

java.lang.Object

com.ibm.dtfj.java.javacore.JCJavaVMInitArgs

All Implemented Interfaces:

JavaVMInitArgs

public class JCJavaVMInitArgs
extends Object
implements JavaVMInitArgs

A javacore-based implementation of DTFJ JavaVMInitArgs. Note that javacores contain the set of initialization options passed into the VM (in the ENVINFO section of the javacore), but do not provide the JNI level or the setting of the JNI 'ignoreUnrecognized' flag.

See Also:

• JavaRuntime

Field Summary

Fields declared in interface com.ibm.dtfj.java.JavaVMInitArgs

JNI_VERSION_1_1, JNI_VERSION_1_2, JNI_VERSION_1_4, JNI_VERSION_1_6

Constructor Summary

Constructors

Constructor	Description
JCJavaVMInitArgs(JCJavaRuntime javaRuntime, int version, boolean ignoreUnrecognized)

Method Summary

Modifier and Type	Method	Description
void	addOption(JCJavaVMOption option)	Not in DTFJ.
boolean	getIgnoreUnrecognized()	Fetch the ignoreUnrecognized field from the JavaVMInitArgs structure used to create this VM.
Iterator	getOptions()	Fetch the options used to start this VM, in the order they were originally specified.
int	getVersion()	Fetch the JNI version from the JavaVMInitArgs structure used to create this VM.

Methods declared in class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

JCJavaVMInitArgs

public JCJavaVMInitArgs(JCJavaRuntime javaRuntime,
 int version,
 boolean ignoreUnrecognized)
                 throws JCInvalidArgumentsException

Throws:

JCInvalidArgumentsException

Method Details

getVersion

public int getVersion()
               throws DataUnavailable,
CorruptDataException

Description copied from interface: JavaVMInitArgs

Fetch the JNI version from the JavaVMInitArgs structure used to create this VM. See the JNI specification for the meaning for this field.

Specified by:

getVersion in interface JavaVMInitArgs

Returns:

the JNI version

Throws:

DataUnavailable

CorruptDataException

getIgnoreUnrecognized

public boolean getIgnoreUnrecognized()
                              throws DataUnavailable,
CorruptDataException

Description copied from interface: JavaVMInitArgs

Fetch the ignoreUnrecognized field from the JavaVMInitArgs structure used to create this VM. See the JNI specification for the meaning of this field.

Specified by:

getIgnoreUnrecognized in interface JavaVMInitArgs

Returns:

true if ignoreUnrecognized was set to a non-zero value with the VM was invoked

Throws:

DataUnavailable

CorruptDataException

getOptions

public Iterator getOptions()
                    throws DataUnavailable

Description copied from interface: JavaVMInitArgs

Fetch the options used to start this VM, in the order they were originally specified.

Specified by:

getOptions in interface JavaVMInitArgs

Returns:

an Iterator over the collection of JavaVMOptions

Throws:

DataUnavailable

See Also:

• JavaVMOption

addOption

public void addOption(JCJavaVMOption option)
               throws JCInvalidArgumentsException

Not in DTFJ. Used only for building purposes.

Throws:

JCInvalidArgumentsException