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JDK 17 java.management.jmod - Management Module
JDK 17 java.management.jmod is the JMOD file for JDK 17 Management module.
JDK 17 Management module compiled class files are stored in \fyicenter\jdk-17.0.5\jmods\java.management.jmod.
JDK 17 Management module compiled class files are also linked and stored in the \fyicenter\jdk-17.0.5\lib\modules JImage file.
JDK 17 Management module source code files are stored in \fyicenter\jdk-17.0.5\lib\src.zip\java.management.
You can click and view the content of each source code file in the list below.
✍: FYIcenter
⏎ sun/management/counter/perf/PerfDataEntry.java
/* * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * * */ package sun.management.counter.perf; import sun.management.counter.*; import java.nio.*; import java.io.UnsupportedEncodingException; class PerfDataEntry { private class EntryFieldOffset { private static final int SIZEOF_BYTE = 1; private static final int SIZEOF_INT = 4; private static final int SIZEOF_LONG = 8; private static final int ENTRY_LENGTH_SIZE = SIZEOF_INT; private static final int NAME_OFFSET_SIZE = SIZEOF_INT; private static final int VECTOR_LENGTH_SIZE = SIZEOF_INT; private static final int DATA_TYPE_SIZE = SIZEOF_BYTE; private static final int FLAGS_SIZE = SIZEOF_BYTE; private static final int DATA_UNIT_SIZE = SIZEOF_BYTE; private static final int DATA_VAR_SIZE = SIZEOF_BYTE; private static final int DATA_OFFSET_SIZE = SIZEOF_INT; static final int ENTRY_LENGTH = 0; static final int NAME_OFFSET = ENTRY_LENGTH + ENTRY_LENGTH_SIZE; static final int VECTOR_LENGTH = NAME_OFFSET + NAME_OFFSET_SIZE;; static final int DATA_TYPE = VECTOR_LENGTH + VECTOR_LENGTH_SIZE; static final int FLAGS = DATA_TYPE + DATA_TYPE_SIZE; static final int DATA_UNIT = FLAGS + FLAGS_SIZE; static final int DATA_VAR = DATA_UNIT + DATA_UNIT_SIZE; static final int DATA_OFFSET = DATA_VAR + DATA_VAR_SIZE; } private String name; private int entryStart; private int entryLength; private int vectorLength; private PerfDataType dataType; private int flags; private Units unit; private Variability variability; private int dataOffset; private int dataSize; private ByteBuffer data; PerfDataEntry(ByteBuffer b) { entryStart = b.position(); entryLength = b.getInt(); // check for valid entry length if (entryLength <= 0 || entryLength > b.limit()) { throw new InstrumentationException("Invalid entry length: " + " entryLength = " + entryLength); } // check if last entry occurs before the eof. if ((entryStart + entryLength) > b.limit()) { throw new InstrumentationException("Entry extends beyond end of buffer: " + " entryStart = " + entryStart + " entryLength = " + entryLength + " buffer limit = " + b.limit()); } b.position(entryStart + EntryFieldOffset.NAME_OFFSET); int nameOffset = b.getInt(); if ((entryStart + nameOffset) > b.limit()) { throw new InstrumentationException("Invalid name offset: " + " entryStart = " + entryStart + " nameOffset = " + nameOffset + " buffer limit = " + b.limit()); } b.position(entryStart + EntryFieldOffset.VECTOR_LENGTH); vectorLength = b.getInt(); b.position(entryStart + EntryFieldOffset.DATA_TYPE); dataType = PerfDataType.toPerfDataType(b.get()); b.position(entryStart + EntryFieldOffset.FLAGS); flags = b.get(); b.position(entryStart + EntryFieldOffset.DATA_UNIT); unit = Units.toUnits(b.get()); b.position(entryStart + EntryFieldOffset.DATA_VAR); variability = Variability.toVariability(b.get()); b.position(entryStart + EntryFieldOffset.DATA_OFFSET); dataOffset = b.getInt(); // read in the perfData item name, casting bytes to chars. skip the // null terminator b.position(entryStart + nameOffset); // calculate the length of the name int nameLength = 0; byte c; for (; (c = b.get()) != (byte)0; nameLength++); byte[] symbolBytes = new byte[nameLength]; b.position(entryStart + nameOffset); for (int i = 0; i < nameLength; i++) { symbolBytes[i] = b.get(); } // convert name into a String try { name = new String(symbolBytes, "UTF-8"); } catch (UnsupportedEncodingException e) { // should not reach here // "UTF-8" is always a known encoding throw new InternalError(e.getMessage(), e); } if (variability == Variability.INVALID) { throw new InstrumentationException("Invalid variability attribute:" + " name = " + name); } if (unit == Units.INVALID) { throw new InstrumentationException("Invalid units attribute: " + " name = " + name); } if (vectorLength > 0) { dataSize = vectorLength * dataType.size(); } else { dataSize = dataType.size(); } // check if data beyond the eof. if ((entryStart + dataOffset + dataSize) > b.limit()) { throw new InstrumentationException("Data extends beyond end of buffer: " + " entryStart = " + entryStart + " dataOffset = " + dataOffset+ " dataSize = " + dataSize + " buffer limit = " + b.limit()); } // Construct a ByteBuffer for the data b.position(entryStart + dataOffset); data = b.slice(); data.order(b.order()); data.limit(dataSize); } public int size() { return entryLength; } public String name() { return name; } public PerfDataType type() { return dataType; } public Units units() { return unit; } public int flags() { return flags; } /** * Returns the number of elements in the data. */ public int vectorLength() { return vectorLength; } public Variability variability() { return variability; } public ByteBuffer byteData() { data.position(0); assert data.remaining() == vectorLength(); return data.duplicate(); } public LongBuffer longData() { LongBuffer lb = data.asLongBuffer(); return lb; } }
⏎ sun/management/counter/perf/PerfDataEntry.java
Or download all of them as a single archive file:
File name: java.management-17.0.5-src.zip File size: 850134 bytes Release date: 2022-09-13 Download
⇒ JDK 17 java.management.rmi.jmod - Management RMI Module
2023-09-23, 11217👍, 0💬
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