This is very intermittent problem and does *not* occur regularly.
I am reading an xlsx file using POI 3.7 and I have code as follows,
ReadOnlySharedStringsTable strings = new
ReadOnlySharedStringsTable(this.xlsxPackage);
XSSFReader xssfReader = new XSSFReader(this.xlsxPackage);
StylesTable styles = xssfReader.getStylesTable();
When I do xssfReader.getStylesTable() I get a stacktrace as follows,
Caused by: java.lang.OutOfMemoryError: PermGen space
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
at
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
at java.net.URLClassLoader.access$000(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:247)
at
org.apache.xmlbeans.impl.schema.SchemaTypeImpl.getJavaImplClass(SchemaTypeImpl.java:1709)
at
org.apache.xmlbeans.impl.schema.SchemaTypeImpl.getJavaImplConstructor(SchemaTypeImpl.java:1725)
at
org.apache.xmlbeans.impl.schema.SchemaTypeImpl.createUnattachedNode(SchemaTypeImpl.java:1853)
at
org.apache.xmlbeans.impl.schema.SchemaTypeImpl.createElementType(SchemaTypeImpl.java:1021)
at
org.apache.xmlbeans.impl.values.XmlObjectBase.create_element_user(XmlObjectBase.java:893)
at org.apache.xmlbeans.impl.store.Xobj.getUser(Xobj.java:1657)
at
org.apache.xmlbeans.impl.store.Xobj.find_all_element_users(Xobj.java:2080)
at
org.openxmlformats.schemas.spreadsheetml.x2006.main.impl.CTCellXfsImpl.getXfArray(Unknown
Source)
at org.apache.poi.xssf.model.StylesTable.readFrom(StylesTable.java:148)
at org.apache.poi.xssf.model.StylesTable.<init>(StylesTable.java:92)
at
org.apache.poi.xssf.eventusermodel.XSSFReader.getStylesTable(XSSFReader.java:84)
at
ariba.collaborate.spreadsheet.basic.ExcelReaderXSSF.process(ExcelReaderXSSF.java:172)
I tried searching for this on forums and on Google but did not come across
anyone who has run into this. Does anyone know why I got this and how I
should proceed with a resolution?
Thanks.
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