Need help in this issue. Server got stuck while generateing the report

[sritharmail]

STUCK] ExecuteThread: '9' for queue: 'weblogic.kernel.Default (self-tuning)'
PRIORITY : 1

THREAD ID : 0X00007F9BB0302800

NATIVE ID : 0X19AE12

NATIVE ID (DECIMAL) : 1682962

STATE : RUNNABLE

stackTrace:
java.lang.Thread.State: RUNNABLE
at sun.font.SunLayoutEngine.nativeLayout(Native Method)
at sun.font.SunLayoutEngine.layout(SunLayoutEngine.java:187)
at sun.font.GlyphLayout$EngineRecord.layout(GlyphLayout.java:685)
at sun.font.GlyphLayout.layout(GlyphLayout.java:466)
at sun.font.ExtendedTextSourceLabel.createGV(ExtendedTextSourceLabel.java:329)
at sun.font.ExtendedTextSourceLabel.getGV(ExtendedTextSourceLabel.java:315)
at sun.font.ExtendedTextSourceLabel.createCharinfo(ExtendedTextSourceLabel.java:619)
at sun.font.ExtendedTextSourceLabel.getCharinfo(ExtendedTextSourceLabel.java:548)
at sun.font.ExtendedTextSourceLabel.getLineBreakIndex(ExtendedTextSourceLabel.java:480)
at java.awt.font.TextMeasurer.calcLineBreak(TextMeasurer.java:330)
at java.awt.font.TextMeasurer.getLineBreakIndex(TextMeasurer.java:566)
at java.awt.font.LineBreakMeasurer.nextOffset(LineBreakMeasurer.java:359)
at net.sf.jasperreports.engine.fill.SimpleTextLineWrapper.measureExactLineBreakIndex(SimpleTextLineWrapper.java:564)
at net.sf.jasperreports.engine.fill.SimpleTextLineWrapper.measureExactLine(SimpleTextLineWrapper.java:538)
at net.sf.jasperreports.engine.fill.SimpleTextLineWrapper.nextLine(SimpleTextLineWrapper.java:520)
at net.sf.jasperreports.engine.fill.TextMeasurer.renderNextLine(TextMeasurer.java:704)
at net.sf.jasperreports.engine.fill.TextMeasurer.renderParagraph(TextMeasurer.java:507)
at net.sf.jasperreports.engine.fill.TextMeasurer.measure(TextMeasurer.java:432)
at net.sf.jasperreports.engine.fill.JRFillTextElement.chopTextElement(JRFillTextElement.java:621)
at net.sf.jasperreports.engine.fill.JRFillTextField.prepare(JRFillTextField.java:685)
at net.sf.jasperreports.engine.fill.JRFillElementContainer.prepareElements(JRFillElementContainer.java:331)
at net.sf.jasperreports.engine.fill.JRFillFrame.prepare(JRFillFrame.java:217)
at net.sf.jasperreports.engine.fill.JRFillElementContainer.prepareElements(JRFillElementContainer.java:331)
at net.sf.jasperreports.engine.fill.JRFillFrame.prepare(JRFillFrame.java:217)
at net.sf.jasperreports.engine.fill.JRFillElementContainer.prepareElements(JRFillElementContainer.java:331)
at net.sf.jasperreports.components.list.FillListContents.prepare(FillListContents.java:86)
at net.sf.jasperreports.components.list.VerticalFillList.fillContents(VerticalFillList.java:155)
at net.sf.jasperreports.components.list.VerticalFillList.prepare(VerticalFillList.java:73)
at net.sf.jasperreports.engine.fill.JRFillComponentElement.prepare(JRFillComponentElement.java:151)
at net.sf.jasperreports.engine.fill.JRFillElementContainer.prepareElements(JRFillElementContainer.java:331)
at net.sf.jasperreports.engine.fill.JRFillFrame.prepare(JRFillFrame.java:217)
at net.sf.jasperreports.engine.fill.JRFillElementContainer.prepareElements(JRFillElementContainer.java:331)
at net.sf.jasperreports.engine.fill.JRFillBand.fill(JRFillBand.java:384)
at net.sf.jasperreports.engine.fill.JRFillBand.fill(JRFillBand.java:358)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillColumnBand(JRVerticalFiller.java:2091)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillDetail(JRVerticalFiller.java:778)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReportStart(JRVerticalFiller.java:288)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:151)
- locked <0x00000002e717be68> (a net.sf.jasperreports.engine.fill.JRVerticalFiller)
at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:932)
at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:864)
at net.sf.jasperreports.engine.fill.JRFiller.fill(JRFiller.java:114)
at net.sf.jasperreports.engine.JasperFillManager.fill(JasperFillManager.java:653)
at net.sf.jasperreports.engine.JasperFillManager.fill(JasperFillManager.java:634)
at net.sf.jasperreports.engine.JasperRunManager.runToPdfStream(JasperRunManager.java:428)
at net.sf.jasperreports.engine.JasperRunManager.runReportToPdfStream(JasperRunManager.java:849)
at gov.mass.dss.fnet.documents.util.JasperReportUtil.generatePdf(JasperReportUtil.java:67)