net.thevpc.nuts.runtime.standalone.util.jclass

Class JavaClassUtils

java.lang.Object

net.thevpc.nuts.runtime.standalone.util.jclass.JavaClassUtils

public class JavaClassUtils
extends Object

Constructor Summary

Constructors

Constructor and Description
JavaClassUtils()

Method Summary

Modifier and Type	Method and Description
static String	classVersionToSourceVersion(int major, int minor)
static String	classVersionToSourceVersion(String classVersion) "Oracle's Java Virtual Machine implementation in JDK release 1.0.2 supports class file format versions 45.0 through 45.3 inclusive.
static MainClassType	getMainClassType(InputStream stream)
static NExecutionEntry	parseClassExecutionEntry(InputStream classStream, String sourceName)
static NOptional<JClassVersion>	resolveJClassVersion(InputStream stream)
static List<URL>	resolveURLs(Class clazz)
static int[]	sourceVersionToClassVersion(String sourceVersion)
static String	sourceVersionToClassVersionString(String sourceVersion)

Methods inherited from class java.lang.Object

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

Constructor Detail

JavaClassUtils

public JavaClassUtils()

Method Detail

resolveURLs

public static List<URL> resolveURLs(Class clazz)

resolveJClassVersion

public static NOptional<JClassVersion> resolveJClassVersion(InputStream stream)

getMainClassType

public static MainClassType getMainClassType(InputStream stream)

Parameters:

stream - stream

Returns:

main class type for the given

parseClassExecutionEntry

public static NExecutionEntry parseClassExecutionEntry(InputStream classStream,
                                                       String sourceName)

classVersionToSourceVersion

public static String classVersionToSourceVersion(String classVersion)

"Oracle's Java Virtual Machine implementation in JDK release 1.0.2 supports class file format versions 45.0 through 45.3 inclusive. JDK releases 1.1.* support class file format versions in the range 45.0 through 45.65535 inclusive. For k ≥ 2, JDK release 1.k supports class file format versions in the range 45.0 through 44+k.0 inclusive."

Parameters:

classVersion -

Returns:

classVersionToSourceVersion

public static String classVersionToSourceVersion(int major,
                                                 int minor)

sourceVersionToClassVersion

public static int[] sourceVersionToClassVersion(String sourceVersion)

sourceVersionToClassVersionString

public static String sourceVersionToClassVersionString(String sourceVersion)